Hydra-Jar AP: Double-Acting, Hydraulic Drilling Jar
Hydra-Jar AP: Double-Acting, Hydraulic Drilling Jar
Hydra-Jar AP: Double-Acting, Hydraulic Drilling Jar
Operating Instructions
ES20.39872J
ES20.39872J i of i Hydra-Jar AP
Schlumberger Private – Double-Acting, Hydraulic Drilling Jar
Customer Product Classification Operating Instructions
Section 1
General Description
The Hydra-Jar AP* Drilling Jar is a double-acting hydraulic drilling jar capable of
delivering (an extra heavy) with (the maximum Impact/ Impulse values) when a
bottomhole assembly becomes stuck. Designed to operate as an integral part of a
drillstring, it can withstand:
Temperatures up to 500° F.
Pressure differentials of 10,000 psi dynamic and 20,000 psi static.
Normal drilling conditions of torque, pump pressure and long term use.
The Hydra-Jar AP tool can easily be racked as part of a stand of drill collars because it is
similar in length and diameter, and has compatible connections and slip setting areas.
In the drilling mode, the jarring mechanism is disengaged and is not affected by normal
drilling conditions or torque.
1 of 39
Section 1 General Description
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 1 General Description
Safety Clamp on
HVOF Shaft
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 2
Operation
Going in the Hole
Hydra-Jar AP tool are approximately thirty feet long. Heavy-duty lift subs for tapered
shoulder elevators are typically used for handling.
Step 1:
Drilling Assembly
Drill Collar Clamp
Slips
Figure 2
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 2 Operation
Step 2:
Figure 3
Step 3:
Safety Clamp
Mouse Hole
Figure 4
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 2 Operation
Step 4:
Step 5: Figure 5
Safety Clamp
Slips
Figure 7
Figure 6
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 2 Operation
Jar Load
Establishing the Jar Load
With the Hydra-Jar AP tool in the hole, control of the tool is in the hands of the
drawworks operator. Use the Weight Indicator Reading and the Working String
Weight above Hydra-Jar AP tool, to establish jar load. Compare the load to Table
7 Hydra-Jar AP Tool Specification, for the maximum detent load. In the following
examples of operation it is necessary to calculate the ‘working’ string weight
above the jar and drag before calculating jar load. This weight is calculated as
follows:
Working String Weight above the Jar equals Drag plus String Weight from the Hydra-Jar AP tool to the
Surface. Drag equal. Weight Indicator Reading Up minus Weight Indicator Reading Down.
Jar Cycle
The Hydra-Jar AP tool hydraulic delay operates within a definite time/load cycle. This
allows delivery of an optimum number of impacts with sufficient time delay to pull the
pipe to the required load range and set the draw works brake. Once a rhythm of setting
the Hydra-Jar AP tool and pulling up (or pushing down) is established, the Hydra-Jar AP
tool can impact at a rate of approximately sixty blows per hour.
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 2 Operation
given jar size. The chart can be used to establish the delay time for a given pull
(or push) load.
Up-Jarring Operation
Step 1: Establish the jar load “up” within the range shown in Table 7 Hydra-Jar
AP Tool Specification.
Step 2: Apply pull to the drillstring per the established weight indicator reading
and then wait for the Hydra-Jar AP tool to impact. There will be a small
loss of indicator weight just before impact, which corresponds to the
retraction of drillstring length. There should be a clear indication on the
weight indicator after the Hydra-Jar AP tool has impacted. See Figure 21
for delay time verses overpull.
Step 3: To repeat the operation, slack off 10,000 to 15,000 lb below the working
load down and immediately apply the previous up-jar load.
Down-Jarring Operation
CAUTION: Do not permit spudding down or dropping larger loads than the
jarring mechanism is designed to withstand.
Step 1: Select a jar load “down,” within the range shown in Table 7 Hydra-Jar
AP Tool Specification, or within the weight range just above the Hydra-
Jar AP tool.
Step 2: Slack down per the established weight indicator reading, then wait for
the Hydra-Jar AP tool to impact.
Step 3: Pick up on the string until the weight indicator is above the “working”
string load by 10,000 to 15,000 lb, then immediately slack off to the
previously selected down jar load.
Step 4: Wait for the Hydra-Jar AP tool to impact down. See Figure 21 for delay
time verses overpull.
Down-jar impacts may not be transmitted through shock tools run in the lower
drilling assembly.
When jarring down with small amounts of drill collars or HWDP on top of the
Hydra-Jar AP, select a load range that will not buckle the drill pipe.
Step 2: Carry out the up-jar sequence, as described in the Up-Jar Operation.
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 2 Operation
Step 3: Once the Hydra-Jar AP tool has impacted up, slack off until the selected
down weight on the Hydra-Jar AP tool is achieved, as described in
Down-Jar Operation.
Step 4: The weight indicator will reflect when the Hydra-Jar AP tool impacts
down.
Increasing Effectiveness
Using the Mud Pump
Pump pressure does not appreciably affect up-jar impacts, but decreases down-jar
impacts. Therefore, the pump should be shut down or slowed before down-jarring
operations begin. Pump pressure extension loads are shown in Figure 20, Pump
Pressure Extension Loads.
Contact local representative for optimum collar and weight placement through the
Jar-Pact* impact tool BHA placement software.
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 2 Operation
Step 2:
Set rotary slips on slip section of the
Hydra-Jar AP tool. Break off and stand
back drill collars or HWDP. Jar may be Safety Clamp
changed out at this point.
Figure 9
Step 3:
Step 4:
Make up and tong up lift sub into the
Hydra-Jar AP tool, then hoist out the Stand back Hydra-Jar AP tool with stands of
next stand. drill collars or HWDP. The Hydra-Jar AP
tool should be at the top of the stand.
Figure 10 Figure 11
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Jar Latch
The Safety-Lok Jar Latch offers the security of a mechanical Jar but the versatility of a
hydraulic tool. The Hydra-Jar AP drilling jar has just gotten simpler to use. By adding the
optional mechanical latching section, you can ensure that the drilling Jar will not fire
unexpectedly during a trip or a connection. The Safety-Lok tool holds the drilling Jar’s
mandrel in its neutral position until sufficient load is applied to release or unlock it. Once
released, the Hydra-Jar AP tool goes into its normal jarring cycle with the driller in
complete control of the operation. When impact is no longer required, simply re-lock the
mandrel, and continue drilling or tripping operations. Transmission of torque to the
bottom of the hole is not affected by the operation of the Safety-Lok. The Safety-Lok tool
is set to unlock at a predetermined tensile or compressive load. See Table 1.
Safety-Lok Segments
Safety-Lok Mandrel
Figure 12
Safety-Lok Tool
Note: Placement of the Hydra-Jar AP tool should be 30% of the Safety-Lok tool
setting either in tension or compression.
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 2 Operation
tool may unlatch the tool unknowingly. Should the drillstring become stuck,
jarring operation is simple:
Up Jar
Apply a pull load at the drilling jar higher than the Safety-Lok setting.
This will unlatch the tool allowing the Hydra-Jar AP tool to go into the
hydraulic detent. After the delay time of the detent, the drilling jar will
release and fire as normal. Normal up jar cycling can be achieved by
simply lowering the drillstring to re-cock the Jar. If another up impact is
required, simply pick up the desired overpull on the hydraulic detent at
this time. To return to normal drilling operations, slack off enough weight,
about 10,000 pounds, to re-latch the tool.
Down Jar
Apply a compression load greater than the Safety-Lok setting. This will
unlatch the tool allowing the Hydra-Jar AP tool to go into the hydraulic
detent. After the delay time of the detent, the drilling jar will release and
fire as normal. Normal down jar cycling can be achieved by simply raising
the drillstring to re-cock the drilling jar. If another down impact is
required, simply lower the desired weight on the hydraulic detent. To
return to normal drilling operations, pick up enough weight, about 10,000
pounds, to re-latch the tool.
Safety Clamp
A Safety Clamp is not required when the tool is in the latch position, but a
Safety Clamp will be shipped with each tool. If after jarring up and
tripping out of the hole, the tool cannot be reset (due to insufficient weight
above the tool); the Safety Clamp should be installed in order to rack the
tool safely. When drilling is continued and weight is applied to the drilling
jar, it will re-latch without firing or damage to the lower BHA.
ES20.39872J 12 of 39 Hydra-Jar AP
Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 2 Operation
Stand-Off Sub
The Schlumberger Stand-Off Sub has a larger OD than the nominal tool OD. The Stand-
Off Subs are strategically placed on our drilling tools to reduce wall contact in directional
wells; thus, reducing OD wear.
The standard Hydra-Jar AP drilling jar can be modified for directional application by
replacing three subs with a Stand-Off Sub. This will result in:
Reduced hole wall contact
Reduced drilling jar OD wear
Benefits include:
Reduced risk of differential sticking
Increased jar life
Improved hole cleaning
Reduced torque and drag
Figure 13
Stand-Off Sub
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 2 Operation
• The Hydra-Jar AP tool should be positioned in the drill string according to the
recommendations as outlined in this manual.
• The Hydra-Jar AP tool should be changed out according to the change out
recommendations as outlined in this manual.
• The Hydra-Jar AP tool should not be placed within 90 feet of any cross
sectional change in the BHA.
• The Hydra-Jar AP tool should be properly sized to the size of the tubulars
(HWDP / DC) that it is placed within and to the size of the well bore that it is
used in to ensure optimum performance and to avoid premature damage to the
tool.
• Dropping the drill sting and performing string shot or explosive back off with
the Hydra-Jar AP tool in the string is not recommended and can result in tool
damages.
• Corrosive acids should not be pumped down hole when the Hydra-Jar AP tool
is in the drill string.
• The Hydra-Jar AP tool should be located a minimum of 90 feet away from the
top stabilizer. Never run a stabilizer or reamer above the Hydra-Jar AP tool
since this can reduce the effectiveness of the Jar when jarring.
• The number of drill collars used to design a BHA should not exceed the
amount of bit weight required plus a safety factor. Rotating excessive drill
collars in tension would result in significant lateral vibrations. These
vibrations reduce the overall life of the Hydra-Jar AP tool.
Always place a minimum of 10% to 20% of the expected drilling jar overpull
as hammer weight above the drilling jar.
Maintain 20% of bit weight between the drilling jar and the neutral point to
ensure that it is outside the neutral point transition zone.
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 2 Operation
A minimum run pipe spacing of 1000 feet should be kept between the two
drilling Jars to avoid damaging the lower drilling Jar due to the top drilling Jar
impacts.
When running the Jar Placement Analysis, the overpull in the upper drilling
Jar can also be decreased in order to reduce the magnitude of the blows
transmitted to the lower drilling Jar to prevent damage. Either way can be
chosen to protect the lower drilling Jar.
The Jar-Pact Placement Analysis will indicate when the drilling Jars are
placed too close to each other.
It is not recommended operating the Hydra-Jar AP /Accelerator tools with
torque in the string. This could reduce the tensile and torsional designed
maximum loads limits and result in tool damage. Trapped torque is not
recommended while operating these tools.
If torque is present, then the published design loads limits do not apply and
Design Engineering should be consulted.
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 3
Placement
Optimum Hydra-Jar AP Tool Position
For optimum performance, placement, and BHA recommendations contact your local
representative to analyze your drilling conditions using the Hydra-Jar AP Jar-Pact
program.
The optimum position for the Hydra-Jar AP tool is slightly above the transition zone, but
the Hydra-Jar AP tool can be run below the transition zone.
Enough difference between the WOB and the JTDW should be provided to
prevent the Hydra-Jar AP tool from setting in the drilling operation. To avoid
damaging or prematurely setting the Hydra-Jar AP tool, do not place at or near the
transition zone.
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 3 Placement
Transition Zone
The transition zone can be calculated by dividing the corrected WOB by the
unit weight per length of the drill collars (DC) or heavy weight drill pipe
(HWDP) used.
Transition Zone in feet equals corrected WOB divided by DC wt/ft
When running in compression adequate drill collars should be placed below and
above the Hydra-Jar AP tool to accommodate the desired WOB and maintain the
transition zone above the Jar. When going in the hole, the Hydra-Jar AP tool will
be extended (opened position); therefore, it is necessary to follow the guidelines
below in order to avoid a jar-down, as the Hydra-Jar AP tool is closed.
Slowly raise string off bottom, allowing the Hydra-Jar AP tool to open and
move through detent without causing an impact.
When re-establishing the WOB after a connection or otherwise approaching
hole bottom, total WOB should be applied slowly to allow the Hydra-Jar AP
tool to ease through detent, thus avoiding a down-jar.
A gradual increase of WOB over a period of three minutes is usually
sufficient to close the Hydra-Jar AP tool without impact.
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 3 Placement
The POF for a particular tool size can be determined using the differential
pressure at the drilling jar, see Figure 20. If the value of the differential pressures
at the drilling jar is not known, the differential pressure across the bit may be used
as an approximate value.
If a drilling jar is in tension, the POF will help keep the tool extended while
drilling. If the drilling jar is in compression but the POF is greater than the
compression weight applied on the drilling jar, the drilling jar may stay extended
while drilling.
If circulating while jarring, the POF will intensify the up-jar blow. However, the
POF will dampen the down-jar blow. It is recommended, that circulation is
stopped or slowed down and trapped pressure bled off, before attempting to jar
down.
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 3 Placement
The weight of the drill string below the drilling jar should be enough to pull
the drilling Jar open.
The pump open force can also help open or move the drilling Jar back through
detent.
A slight movement of the weight indicator should be observed as the drilling
jar exits detent and drops open. This process might also take 3 to 5 minutes
and should avoid a Jar impact.
Normal connection or tripping procedures can continue at this point.
When going back to bottom to begin drilling operations, the same procedures
should be followed as in the procedure discussed in the section above
“Lowering the Drill String”.
Tripping out of the Hole
For tripping in and out of the hole, caution should be taken if a ledge or
enough hole drag is encountered.
If a ledge or enough drag resistance is observed, follow the second step for
“Picking off Bottom” to ensure the drilling jar fully opens again.
If the hole is tight and the drill string is being worked up and down before a
connection, make sure that the drilling jar is fully opened before setting your
slips and unscrewing the kelly for a connection.
If the drilling jar is still closed after unscrewing the kelly, it probably will
drop back open from the weight of the drill string below the drilling jar.
Although this movement of the tool is not considered an impact, it can cause
enough recoil of the drill pipe to knock the slips out and risk dropping the drill
string to bottom.
Do not slack off more than six inches when setting the slips, as this may cock
the drilling jar.
Procedure for Coring with a Hydra-Jar AP
For coring operations, the same procedures for drilling, tripping in and tripping
out should be followed. The following considerations and options should also be
considered:
One option is to take the lower detent ring out of drilling jar so the tool will
not be able to fire down. Normal up jarring functions of the drilling jar would
not be altered. If this is not an option, then special care should be taken to
prevent the drilling jar from firing and risking accidental loss of the core while
coming off bottom.
Many times in hard or consolidated formation, it is necessary to break the core
loose from the formation before coming off bottom for a connection or
tripping out of the hole. The best way to attempt to break the core is to let the
core bit completely drill off before pulling off bottom.
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 3 Placement
Many times the rotation and the washing effect of the pumps on the core will
be sufficient to break the core loose. This can take several minutes of rotating
on bottom without any WOB.
Follow the “procedures in Picking off bottom” as discussed above when
pulling off bottom.
Continue pumping and slowly rotating after picking up off bottom and see if
the core has broken loose from the formation.
If the core is not loose, then attempt to pull up a little further and rotate in one
spot while pumping to see if it will come loose. The drilling jar needs to be
fully open before you attempt to pull hard to break the core loose.
Apply overpull load to lower drilling jar (up to maximum overpull at drilling
jar).
If drilling jar fires then slack off the equivalent weight of the weight below the
upper drilling jar, pick up and continue up jarring using this procedure.
If above fails to activate lower drilling jar, then slack off more weight enough
to close the top drilling jar to cock it and then pick back up. Overpull upper
drilling jar to maximum and wait until drilling jar fires. Continue to fire upper
drilling jar until bottom drilling jar is hopefully activated.
Situation 2. String becomes stuck coming out of the hole.
Jar situation – Lower drilling jar in tension.
From the time that BHA comes off bottom the weight below the bottom
drilling jar will pull the tool open from its closed position. This might take up
to 10 minutes depending on the hole angle and actual string weight below the
lower drilling jar.
Leaving the rig pumps on for a few minutes when pulling off bottom can also
help lower the waiting time for the lower drilling jar to open as discussed in
the previous “Pump Open Force” section.
To jar down, slack off the equivalent of the weight below top drilling jar and
allow time (3-4 minutes) for bottom jar to fire.
If the drilling jar fires, repeat procedures as required.
If above fails to achieve drilling Jar action, slack off more weight until upper
drilling jar is activated to fire down.
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 3 Placement
Examples of Placement
Examples provided in Figure 14 through Figure 17 illustrate how to determine the
position above the transition zone in the event that the Jar-Pact Program is not
available.
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 3 Placement
No Angle
Drill Pipe
In the event that the Jar-Pact Program is not available, use
String the calculations below to place the Hydra-Jar AP tool in
the optimum position within the drilling assembly, while
maintaining the Desired Weight on Bit.
Known Factors
WOB- Desired Weight on Bit (buoyed) = 40,000 lb
JTDW - Jar Tension Drilling Weight (buoyed) = 15,000 lb
WDJ - Weight on Drilling Jar (buoyed) = 10,000 lb
DC - Drill collar in air - 6¼ x 2¼ (90.6 lb/ft) = 2,718 lb (each)
BF - Buoyancy factor (13 lb/gal) (Table 5) = 1.25
DJ - Drilling Jar Weight (in air) = 1,600 lb
Example
Drilling Assembly Above Drilling Jar
Equation (In Air) Example
LB = WDJ x BF 10,000 x 1.25 = 12,500 lb
WDJ x BF 10,000 x 1.25
FT = WT of DC in LB/FT = 138 ft
90.6
WDJ x BF 10,000 x 1.25
DC = WT per 30 FT of DC = 5 dc
2,718
Lower Drilling Assembly (LDA)
LB = [JTDW + WOB] (BF) [15,000 + 40,000] (1.25) = 68,750 lb
[JTDW + WOB] (BF) [15,000 + 40,000] (1.25)
FT = = 759 ft
WT of DC in LB/FT 90.6
[JTDW + WOB] (BF) [15,000 + 40,000] (1.25)
DC = WT per 30 FT of DC = 25 dc
2,718
Bit Weight Drill Collar (BWDC)
BWDC= Desired WOB (BF) 40,000 x 1.25 = 50,000 lb
Transition
Zone
Figure 14
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 3 Placement
Core Drilling
In the event that the Jar-Pact Program is not available,
Drill Pipe use the calculations below to place the Hydra-Jar AP
String tool in the optimum position within the drilling
assembly, while maintaining the Desired Weight on
Bit.
Known Factors
WOCB - Desired Weight on Core Bit (buoyed) = 20,000 lb
JTDW - Jar Tension Drilling Weight (buoyed) = 18,000 lb
WDJ - Weight on Drilling Jar (buoyed) = 10,000 lb
DC - Drill collars - 6¼ x 2¼ (90.6) b/ft in air) = 2,718 lb (each)
BF - Buoyancy factor (13 lb/gal) = 1.25
DJ - Drilling Jar Weight (in air) = 1,600 lb
Example
Drilling Assembly Above Drilling Jar
Equation (in air) Example
LB = WDJ x BF 10,000 x 1.25 =12,500 LB
WDJ x BF 10,000 x 1.25
FT = =138 FT
WT of DC in LB/FT 90.6
WDJ x BF 10,000 x 1.25
DC = WT PER 30 FT OF DC =5 DC
2,718
Lower Drilling Assembly (LDA)
LB = [JTDW + WOBC] (BF) [18,000 + 20,000] (1.25) =47,500 LB
[JTDW + WOBC] (BF) [18,000 + 20,000] (1.25)
FT = =524 FT
WT of DC in LB/FT 90.6
[JTDW + WOBC] (BF) [18,000 + 20,000] (1.25)
DC = =17 DC
WT per 30 FT of DC 2,718
Weight On Core Bit (WOCB)
WOCB = DESIRED WOB x BF 20,000 x 1.25 =25,000 LB
Figure 15
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 3 Placement
Directional Drilling
In the event that the Jar-Pact Program is not available, use
the calculations below to place the Hydra-Jar AP tool in
the optimum position within the drilling assembly, while
maintaining the Desired Weight on Bit.
Known Factors
WOB - Weight on Bit (buoyed) = 45,000 lb
JTDW - Jar Tension Drilling Weight (buoyed) = 15,000 lb
WDJ - Weight on Drilling Jar (buoyed) = 10,000 lb
DC - Drill collars - 6¼ x 2¼ (90.6 lb/ft in air) = 2,718 lb (each)
Hole Angle = 35°
AF - Hole Angle Factor = 1.22
BF - Buoyancy Factor (13 lb/gal) = 1.25
DJ - Drilling Jar Weight (in air) = 1,600 lb
Example
Drilling Assembly Above Drilling Jar
Equation Example
LB = WDJ x BF 10,000 x 1.25 = 12,500 LB
WDJ x BF 10,000 x 1.25
FT = = 138 FT
WT of DC in LB/FT 90.6
WDJ x BF 10,000 x 1.25
DC = = 5 DC
WT per 30 FT of DC 2,718
Lower Drilling Assembly (LDA)
LB = [JTDW + WOB] (BF) (AF) [15,000 + 45,000] (1.25) (1.22) = 91,500 LB
[JTDW + WOB] (BF) (AF) [15,000 + 45,000] (1.25) (1.22)
FT = = 1,010 FT
WT of DC in LB/FT 90.6
[JTDW + WOB] (BF) (AF) [15,000 + 45,000] (1.25) (1.22)
DC = = 34 DC
WT per 30 FT of DC 2,718
Bit Weight Drill Collar (BWDC)
BWDC = WOB (AF) (BF) 45,000 (1.22) (1.25) = 68,625 LB
Figure 16
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 3 Placement
Known Factors
WOB - Weight on Bit (buoyed) = 30,000 lb
JTDW - Jar Tension Drilling Weight (buoyed) = 6,000 lb
WDJ - Weight on Drilling Jar (buoyed) = 10,000 lb
DC - Drill collars - 6¼ x 2¾ (90.6 lb/ft in air) = 2,718 lb (each)
Hole Angle = 35°
AF - Hole Angle Factor = 1.22
BF - Buoyancy Factor (13 lb/gal) = 1.25
DJ - Drilling Jar (in air) = 1,600 lb
Example
Drilling Assembly Above Drilling Jar
Equation Example
LB = WDJ x BF 10,000 x 1.25 = 12,500 LB
WDJ x BF 10,000 x 1.25
FT = = 138 FT
WT of DC in LB/FT 90.6
WDJ x BF 10,000 x 1.25
DC = = 5 DC
WT per 30 FT of DC 2,718
Lower Drilling Assembly (LDA)
LB = [JTDW + WOB] (BF) (AF) [6,000 + 30,000] (1.25) (1.22) = 54,900 LB
[JTDW + WOB] (BF) (AF) [6,000 + 30,000] (1.25) (1.22)
FT = = 606 FT
WT of DC in LB/FT 90.6
[JTDW + WOB] (BF) (AF) [6,000 + 30,000] (1.25) (1.22)
DC = = 20 DC
WT per 30 FT of DC 2,718
Bit Weight Drill Collar (BWDC)
BWDC = WOB (AF) (BF) 30,000 (1.25) (1.22) = 45,750 LB
Figure 17
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Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 4
Table 2
Recommended Maximum Hole Size versus Tool Size
Maximum Maximum
Tool
Hole Diameter Hole Diameter
Diameter
inches inches
inches
(Vertical Hole) (Horizontal/Deviated Hole)
3 3/8 5 7/8 7 7/8
4 1/4 6 3/4 8 3/4
4 3/4 7 7/8 9 7/8
5 1/8 8 3/4 10 5/8
6 1/4 9 7/8 10 5/8
6 1/2 10 5/8 12 1/4
7 12 1/4 14 3/4
7 1/4 12 1/4 14 3/4
7 3/4 12 1/4 17 1/2
8 17 1/2 22
8 1/4 17 1/2 22
8 1/2 17 1/2 26
9 1/2 26 30
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Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 4 Tables & Charts
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Section 4 Tables & Charts
Table 4
Differences between Drilling in Tension and in Compression
Hydra-Jar AP in Hydra-Jar AP in
Tension Compression
Neutral point below the drilling Neutral point above the
jar drilling jar
Drilling jar remains “open” and Drilling jar remains “closed”
cocked for down jarring while and cocked for up jarring
drilling while drilling
No risk of premature firing of Drilling jar may fire
drilling jar when picking up off prematurely if drillstring
bottom picked up off bottom too
quickly
Pump Open Force will help Drilling jar needs to be
extend the drilling jar open while slowly opened before
drilling, and does not affect the tripping out the hole to
WOB prevent accidental firing
Used in low angle wellbores Unavoidable in highly
where the bottomhole assembly deviated wellbores where the
below the optimal drilling jar bottomhole assembly below
placement provides sufficient the optimal drilling jar
weight to drill placement provides in-
sufficient weight on bit to
drill
Table 5
BF – Mud Weight & Buoyancy Factor Multiplier
Mud Weight
8.3 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0
lb/Gal
Buoyancy
Factor 1.14 1.16 1.18 1.20 1.22 1.25 1.27 1.30 1.32 1.35 1.37 1.41 1.43
Multiplier
Table 6
AF – Hole Angle Factor Multiplier
Hole
5° 10° 15° 20° 25° 30° 35° 40° 45° 50° 55° 60°
Angle
1/cos
1.0038 1.0154 1.0353 1.0642 1.1034 1.1547 1.2208 1.3054 1.4142 1.5557 1.7434 2.0000
Multiplier
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Table 7
Hydra-Jar AP Tool Specification
Overall Max. Detent Tensile Torsional Up Stroke Down Total
OD ID Tool Joint Tool
Length Working Yield Yield inches Stroke Stroke
inches inches Connecti Weight
Extended Load Strength Strength (mm) inches inches
(mm) (mm) on lb (kg)
ft in (mm) lbf (N) lbf (N) lbf·ft (N·m) (mm) (mm)
3-3/8 1-1/2 2-3/8 24' 5" 44,000 236,062 6,842 7 7 21 500
(85.73) (38.10) API IF (7,442) (195,712) (1,050,004) (9,276) (178) (178) (533) (227)
4-1/4 2 2-7/8 29' 10" 70,000 377,871 15,381 8 7 25 800
(107.95) (50.80) API IF (9,093) (311,360) (1,680,770) (20,853) (203) (178) (635) (362)
4-3/4 2-1/4 3-1/2 29' 10" 95,000 492,284 19,126 8 7 25 1,050
(120.65) (57.15) API IF (9,093) (422,560) (2,189,679) (25,930) (203) (178) (635) (476)
5-1/8 2-1/4 29' 10" 95,000 492,284 30,000 8 6-13/16 25 1,155
WT-38
(130.18) (57.15) (9,093) (422,560) (2,189,679) (40,650) (203) (173.08) (635) (524)
6-1/4 2-3/4 4-1/2 31' 2" 150,000 730,324 40,505 8 7 25 1,600
(158.75) (69.85) XH (9,499) (667,200) (3,248,481) (54,915) (203) (178) (635) (725)
6-1/4
2-3/4 4-1/2 31' 2" 150,000 964,207 50,757 8 7 25 1,600
Mod
(69.85) XH (9,499) (667,200) (4,288,792) (68,814) (203) (178) (635) (725)
(158.75)
6-1/2 2-3/4 4-1/2 31' 2" 175,000 964,207 54,796 8 7 25 1,850
(165.10) (69.85) API IF (9,499) (778,400) (4,288,792) (74,290) (203) (178) (635) (839)
7 2-3/4 5 31' 6" 230,000 1,179,933 67,396 8 8 25 2,600
(177.80) (69.85) H-90 (3,601) (1,023,040) (5,248,342) (91,372) (203) (203) (635) (1,179)
7-1/4 2-3/4 5-1/2 31' 6" 240,000 1,261,162 84,155 8 8 25 3,000
(184.15) (69.85) H-90 (3,601) (1,067,520) (5,337,600) (114,093) (203) (203) (635) (1,360)
7-3/4 3 6-5/8 32' 260,000 1,315,225 86,848 8 7 25 3,200
(196.85) (76.20) API REG (9,754) (1,156,480) (5,850,121) (117,744) (203) (178) (635) (1,451)
8 3 6-5/8 32' 300,000 1,621,565 98,490 8 7 25 3,550
(203.20) (76.20) API REG (9,754) (1,334,400) (7,212,721) (133,528) (203) (178) (635) (1,610)
8-1/4 3 6-5/8 32' 350,000 1,819,384 115,418 8 8 25 4,000
(209.55) (76.20) API REG (9,754) (1,556,800) (8,092,620) (156,478) (203) (203) (635) (1,814)
8-1/2 3 6-5/8 32' 350,000 1,846,269 115,418 8 8 25 4,500
(215.90) (76.20) API REG (9,754) (1,556,800) (8,212,205) (156,478) (203) (203) (635) (2,041)
9-1/2 3 7-5/8 32' 6" 500,000 1,654,172 152,802 8 8 25 5,600
(241.30) (76.20) API REG (9,906) (2,224,000) (7,357,757) (207,161) (203) (203) (635) (2,540)
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Section 4 Tables & Charts
Table 8
Hydra-Jar AP Tool and Accelerator Tool Weight Tables
Tool OD 3-3/8 OD 4-1/4 OD 4-3/4 OD 6-1/4 OD 6-1/2 OD 7 OD 7-1/4 OD 7-3/4 OD 8 OD 8-1/4 OD 8-1/2 OD 9-1/2 OD
Inches (86) (108) (121) 3-1/2 (159) (165) (178) (184) (197) (203) (210) (215.90) (241)
(mm) 2-3/8 2-7/8 API FH-IF, 4-1/2 4-1/2 5 5 6-5/8 6-5/8 6-5/8 6-5/8 7-5/8
Tool Joint API IF API IF MOD 5-1/8 OD API IF API IF H90 H90 API REG API REG API REG API REG API REG
Connection (130) MOD MOD
WT-38
Jar and
Accel. Load Weight of Collars and Quantity of Collars - lb. (kg
lbf (N)
20,000 4,000 5 4,000 4
(88,960) (1,814 5) (1,814 4)
25,000 5,000 6 5,000 5
(111,200) (2,267 6) (2,267 5)
30,000 6,000 8 6,000 6
(133,440) (2,721 8) (2,721 6)
40,000 8,000 10 8,000 8 8,000 5 This area represents insufficient drill collar weights that cause
(177,920) (3,628 10) (3,628 8) (3,628 5)
excessively high impact loads on jar and fishing tools.
50,000 10,000 10 10,000 7 10,000 4 10,000 4 10,000 3 10,000 3
(222,400) (4,535 10) (4,535 7) (4,535 4) (4,535 4) (4,535 3) (4,535 3)
75,000 15,000 14 15,000 10 15,000 6 15,000 5 15,000 5 15,000 4
(333,600) (6,803 14) (6,803 10) (6,803 6) (6,803 5) (6,803 5) (6,803 4)
100,000 20,000 13 20,000 8 20,000 7 20,000 6 20,000 6
(444,800) (9,071 13) (9,071 8) (9,071 7) (9,071 6) (9,071 6)
125,000 25,000 10 25,000 9 25,000 8 25,000 7 25,000 6 25,000 6 25,000 5 25,000 5
(556,000) (11,339 10) (11,339 9) (11,339 8) (11,339 7) (11,339 6) (11,339 6) (11,339 5) (11,339 5)
150,000 30,000 12 30,000 11 30,000 9 30,000 8 30,000 7 30,000 7 30,000 6 30,000 6 30,000 5
(667,200) (13,607 12) (13,607 11) (13,607 9) (13,607 8) (13,607 7) (13,607 7) (13,607 6) (13,607 6) (13,607 5)
175,000 35,000 14 35,000 13 35,000 10 35,000 10 35,000 9 35,000 8 35,000 7 35,000 7 35,000 5
(778,400) (15,875 14) (15,875 13) (15,875 10) (15,875 10) (15,875 9) (15,875 8) (15,875 7) (15,875 7) (15,875 5)
200,000 This area represents excessive drill collar 40,000 12 40,000 11 40,000 10 40,000 9 40,000 8 40,000 8 40,000 6
(889,600) (18,143 12) (18,143 11) (18,143 10) (18,143 9) (18,143 8) (18,143 8) (18,143 6)
250,000 weights that diminish the efficiency of the jar acceleration effort 50,000 12 50,000 11 50,000 11 50,000 10 50,000 8
(1,112,000) (22,679 12) (22,679 11) (22,679 11) (22,679 10) (22,679 8)
300,000 60,000 15 60,000 14 60,000 13 60,000 12 60,000 9
(1,334,400) (27,215 15) (27,215 14) (27,215 13) (27,215 12) (27,215 9)
350,000 70,000 11
(1,556,800) (31,751 11)
Drill Collar 3-3/8 OD 4-1/4 OD 4-3/4 OD 6-1/4 OD 6-1/2 OD 7 OD 7-1/4 OD 7-3/4 OD 8 OD 8-1/4 OD 8-1/2 OD 9-1/2 OD
Size (86) (108) (120) (159) (165) (178) (184) (197) (203) (210) (216) (241)
Inches 1-1/2 ID 2-1/4 ID 2 ID 2-13/16 ID 2-13/16 ID 2-13/16 ID 2-13/16 ID 3 ID 3 ID 3 ID 3 ID 3 ID
(mm) (38) (57) (51) (71) (71) (71) (71) (76) (76) (76) (76) (76)
WT/30’ 732 lb 1,041 lb 1,488 lb 2,519 lb 2,774 lb 3,313 lb 3,598 lb 4,080 lb 4,398 lb 4,723 lb 5,173 lb 6,618 lb
Max kg)
(332 (472 kg) (674 kg) (1142 kg) (1258 kg) (1502 kg) (1632 kg) (1850 kg) (1994 kg) (2142 kg) (2346 kg) (3001 kg)
Impact Min. 90 150 180 400 400 450 450 500 500 600 600 1,000
Blow x1000 (400) (667) (800) (1779) (1779) (2001) (2001) (2224) (2224) (2668) (2668) (4448)
lbf (N) 200 250 300 650 700 750 750 800 800 900 900 2,000
(890) (1112) (1334) (2981) (3113) (3336) (3336) (3558) (3558) (4003) (4003) (8896)
W 2
E1 V
2 g
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Section 4 Tables & Charts
Table 9
Amplification Factor
Jar Size Heavy WT (M) L F
(inches) Drill Pipe Drill Pipe Drill Collars Amplifi- Jar Load Jar Blow
OD x ID DIA LB/FT DIA LB/FT DIA LB/FT cation (LBF) (LBF)
Factor
3-3/8 x 1-1/2 2-3/8 6.65 — — 3-3/8 24.4 2.93 44,000 128,920
4-1/4 x 2 2-7/8 6.87 — — 4-1/4 37.5 4.36 70,000 305,200
10.40 2.89 70,000 202,300
13.30 3-1/2 26 — — 1.56 95,000 148,200
4-3/4 x 2-1/4 3-1/2 15.50 3-1/2 26 — — 1.34 95,000 127,300
13.30 — — 4-3/4 49.5 2.99 95,000 284,050
15.50 — — 4-3/4 49.5 2.56 95,000 243,200
16.60 4-1/2 42 — — 2.02 150,000 303,000
20.00 4-1/2 42 — — 1.68 150,000 252,000
6-1/4 x 2-3/4 16.60 5 50 — — 2.41 150,000 361,500
4-1/2 20.00 5 50 — — 2.00 150,000 300,000
16.60 — — 6-1/4 83.9 4.04 150,000 606,000
6-1/2 x 2-3/4 20.00 — — 6-1/4 83.9 3.35 150,000 502,500
16.60 — — 6-1/2 92.5 4.52 150,000 678,000
20.00 — — 6-1/2 92.5 3.71 150,000 556,500
5 19.50 5 50 — — 2.05 150,000 307,500
19.50 — — 6-1/2 92.5 3.80 150,000 570,000
16.60 5-1/2 57 — — 2.74 230,000 630,200
4-1/2 20.00 5-1/2 57 — — 2.28 230,000 524,400
7 x 2-3/4 16.60 — — 7 110.5 5.31 230,000 1,221,300
20.00 — — 7-1/4 119.5 4.77 230,000 1,097,100
7-1/4 x 2-3/4 19.50 5-1/2 57 — — 2.33 230,000 535,900
5 19.50 — — 7 110.5 4.53 230,000 1,041,900
19.50 — — 7-1/4 119.5 4.89 230,000 1,124,700
4-1/2 16.60 — — 7-3/4 136.1 6.56 260,000 1,705,600
7-3/4 x 3 20.00 — — 7-3/4 136.1 5.45 260,000 1,417,000
19.50 6-5/8 70 — — 2.87 260,000 746,200
8x3 5 19.50 — — 7-3/4 136.1 5.60 260,000 1,456,000
19.50 — — 8 150.5 6.36 260,000 1,653,600
19.50 6-5/8 70 — — 2.87 350,000 1,004,500
8-1/4 x 3 5 19.50 — — 8-1/4 157.5 6.45 350,000 2,257,500
19.50 — — 8-1/2 172.5 7.07 350,000 2,474,500
8-1/2 x 3 21.90 6-5/8 70 — — 2.55 350,000 892,500
5-1/2 21.90 — — 8-1/4 157.5 5.75 350,000 2,012,500
21.90 — — 8-1/2 172.5 6.29 350,000 2,201,500
21.90 6-5/8 70 — — 2.55 500,000 1,275,000
5-1/2 21.90 — — 9 191.9 7.00 500,000 3,500,000
9-1/2 x 3 21.90 — — 9-1/2 216.6 7.90 500,000 3,950,000
6-5/8 25.20 6-5/8 70 — — 2.23 500,000 1,115,000
25.20 — — 9-1/2 216.6 6.86 500,000 3,430,000
Example: Impact Jar Blow (F) = Amplification Factor (M) x Jar Load (L).
Table 9 shows the ratio of jar weight members to string members in LB/FT to arrive at the Amplification Factor.
Locate 6-1/4 x 2-3/4 jar size on Table 9. Find 4-1/2-16.60 LB/FT Drill Pipe and 6-1/4-90.6 LB/FT. Drill Collars for an
Amplification Factor of 4.04.
With a jar load (L) of 150,000 LBF, jar blow (F) equals 4.04 x 150,000 or 606,000 LBF of Impact Jar Blow.
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Section 4 Tables & Charts
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Section 4 Tables & Charts
Table 10
Fishing Dimensions
Dimensions reflect parts that have not been reworked or re-machined.
Assembly
16577 15360 16790 20182042 17096 16293 16300 16334 16255 16257 16259 16316 16250
Numbers
Tool OD
3-3/8 4-1/4 4-3/4 5-1/8 6-1/4 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-1/2
inches
(85.73) (107.95) (120.65) (130.18) (158.75) (165.10) (177.80) (184.15) (195.85) (203.20) (209.55) (215.90) (241.30)
(mm)
Tool ID
1-1/2 2 2-1/4 2-1/4 2-3/4 2-3/4 2-3/4 2-3/4 3 3 3 3 3
inches
(38.1) (50.80) (57.15) (57.15) (69.85) (69.85) (69.85) (69.85) (76.20) (76.20) (76.20) (76.20) (76.20)
(mm)
Kelly Mandrel
3-3/8 4-1/4 4-3/4 5-3/16 6-1/4 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-1/2
A
(85.73) (107.95) (120.65) (129.99) (158.75) (165.10) (7.80) (184.15) (196.85) (203.20) (209.55) (215.90) (241.30)
16 22-5/16 27-5/16 32 23-3/8 30-1/4 29-1/4 29-1/4 24 24 24 24 31-7/16
B
(406.4) (566.7) (693.7) (812.80) (593.7) (768.4) (743.0) (743.0) (609.6) (609.6) (609.6) (609.6) (852.47)
2-33/64 3-1/32 3-3/8 3 3/8 4-7/8 4-3/8 4-7/8 4-7/8 5-3/16 5-3/16 6 6 6-3/4
C
(63.9) (76.84) (85.73) (85.725) (123.8) (111.13) (123.83) (123.83) (131.76) (131.76) (152.40) (152.40) (171.45)
2-1/4 3 3-5/16 3 5/16 4-5/16 4-5/16 4-5/8 4-5/8 5-1/8 5-1/8 5-1/2 5-1/2 6
D
(57.15) (76.20) (84.14) (84.15) (109.54) (109.54) (117.48) (117.48) (130.18) (130.18) (139.70) (139.70) (152.40)
81-7/8 103-3/8 108-1/2 113 3/16 112 119 119-5/16 119-5/16 112-13/16 112-13/16 112-13/16 112-13/16 125-3/8
E
(2079.6) (2625.7) (2756.0) (2874.98) (2844.8) (3022.6) (3030.54) (3030.54) (2865.4) (2865.4) (2865.4) (2865.4) (3184.53)
2-3/8 2-7/8 3-1/2 4-1/2 4-1/2 5 6-5/8 6-5/8 6-5/8 6-5/8 7-5/8
F WT38 NC46
I.F. I.F. I.F. I.F. I.F. H-90 REG REG REG REG REG
1-1/2 2 2-1/4 2 1/4 2-3/4 2-3/4 2-3/4 2-3/4 3 3 3 3 3
G
(38.10) (50.80) (57.15) (57.15) (69.85) (69.85) (69.85) (69.85) (76.20) (76.20) (76.20) (76.20) (76.20)
Knocker
2-47/64 3-9/16 3-7/8 3-7/8 8 5-1/4 5-3/4 5-3/4 6-1/2 6-1/2 6-3/4 6-3/4 7-1/8
A
(69.5) (90.49) (98.43) (98.43) (203.2) (133.4) (146.05) (146.05) (165.10) (165.10) (171.45) (171.45) (180.98)
7-1/8 10-3/8 10-3/8 10-3/8 11-7/8 11-7/8 12-5/8 12-5/8 13-15/16 13-15/16 13-15/16 13-15/16 12
B
(180.98) (263.53) (263.53) (263.53) (301.63) (301.63) (320.68) (320.68) (354.01) (354.01) (354.01) (354.01) (304.80)
2-5/32 2-29/32 3-5/32 3-5/32 4-3/64 4-3/64 4-23/64 4-23/64 4-59/64 4-59/64 5-11/64 5-11/64 5-57/64
C
(54.8) (73.8) (80.2) (80.20) (102.8) (102.8) (110.7) (110.7) (125.0) (125.0) (131.45) (131.45) (149.48)
1-15/16 2-13/32 2-21/32 2-21/32 3-37/64 3-21/64 3-13/32 3-13/32 4-5/16 4-5/16 4-11/64 4-11/64 4-41/64
D
(49.2) (61.1) (67.5) (67.50) (90.9) (84.5) (86.5) (86.5) (109.6) (109.6) (105.92) (105.92) (117.73)
1-1/2 2 2-1/4 2-1/4 2-3/4 2-3/4 2-3/4 2-3/4 3 3 3 3 3
E
(38.10) (50.80) (57.15) (57.15) (69.85) (69.85) (69.85) (69.85) (76.20) (76.20) (76.20) (76.20) (76.20)
1-15/16 5 5 5 5-7/8 5-7/8 6-3/8 6-3/8 6-1/2 6-1/2 6-1/2 6-1/2 6-1/8
F
(49.21) (127.00) (127.00) (127.00) (149.23) (149.23) (161.93) (161.93) (165.10) (165.10) (165.10) (165.10) (155.58)
3-1/4 4-3/8 4-3/8 4-3/8 5 5 5-1/4 5-1/4 6-7/16 6-7/16 6-7/16 6-7/16 4-7/8
G
(82.55) (111.13) (111.13) (111.13) (127.00) (127.00) (133.35) (133.35) (163.51) (163.51) (163.51) (163.51) (123.83)
Drive Cylinder
3-3/8 4-1/4 4-3/4 5-3/16 6-5/16 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-9/16
A
(85.73) (107.95) (120.65) (131.76) (160.3) 165.10 (177.80) (184.15) (196.85) (203.20) (209.55) (215.90) (241.96)
8-3/8 7-7/8 7-7/8 10 6-5/16 7-7/8 9-5/16 9-5/16 7-7/8 7-7/8 9-7/8 9-25/32 13
B
(212.73) (200.03) (200.03) (254.00) (160.3) (200.03) (236.54) (236.54) (200.03) (200.03) (250.83) (248.44) (330.2)
13-17/32 22-3/4 22-3/4 18 23-1/16 24-1/2 22-63/64 22-63/64 20 20 18 18-3/32 25-1/2
C
(343.69) (577.85) (577.85) (457.20) (585.8) (622.30) (583.80) (583.80) (508.00) (508.00) (457.20) (459.58) (647.00)
3-3/8 9-3/8 9-3/8 9 13/16 13-5/8 16-1/2 8-3/64 8-3/64 21 21 13-41/64 13-11/16 15-1/8
D
(85.73) (238.13) (238.13) (249.24) (346.1) (419.10) (204.39) (204.39) (533.40) (533.40) (346.47) (347.66) (28.58)
3-3/4 4-7/8 5-15/32 6-1/32 5-7/8 5-7/8 5-53/64 5-25/32 7-13/32 7-13/32 7-23/64 7-5/16 8-1/64
E
(95.25) (123.83) (138.91) (153.19) (149.23) (149.23) (148.03) (146.84) (188.12) (188.12) (186.93) (185.74) (203.58)
3-1/8 3-5/8 4-1/8 4-1/2 5-7/8 5-1/2 6 6 6-1/2 6-1/2 7-1/2 7-1/2 8-3/4
F
(79.38) (92.08) (104.78) (114.30) (149.23) (139.70) (152.40) (152.40) (165.10) (165.10) (190.50) (190.50) (222.25)
3-3/8 4-1/4 4-3/4 5-3/16 6-5/16 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-9/16
G
(85.73) (107.95) (120.65) (131.76) (160.3) (165.10) (177.80) (184.15) (196.85) 203.20) (209.55) (215.90) (241.96)
2-7/8 3-3/4 4-1/8 4 25/64 5-7/16 5-5/8 6-1/8 6-1/8 6-7/8 6-7/8 7-1/8 7-1/8 7-3/4
H
(73.03) (95.25) (104.78) (111.53) (138.1) (142.88) (155.58) (155.58) (174.63) (174.63) (180.98) (180.98) (196.85)
31-3/8 44-7/8 44-7/8 44 7/8 48-7/8 48-7/16 48-7/8 48-7/8 48-7/8 48-7/8 48-7/8 48-7/8 52-7/8
I
(796.93) (1139.83) (1139.83) (1139.83) (1241.4) (1230.31) (1241.43) (1241.43) (1241.43) (1241.43) (1241.43) (1241.43) (1343.03)
2-17/32 3-1/32 3-25/64 3 25/64 4-29/32 4-13/32 4-29/32 4-29/32 5-13/64 5-13/64 6-1/32 6-1/32 6-49/64
J
(64.26) (77.03) (86.23) (86.23) (124.6) (111.760) (124.62) (124.62) (132.2) (132.2) (153.20) (153.20) (171.84)
Drive Pins
5/16 3/8 3/8 3/8 5/8 3/4 3/4 3/4 3/4 3/4 3/4 3/4 1
A
(7.94) (9.53) (9.53) (9.53) (15.8) (19.05) (19.05) (19.05) (19.05) (19.05) (19.05) (19.05) (24.1)
5 10 10 10 12 12 12 12 12 12 12 12 12
B
(127.00) (245) (245) (245) (304.8) (304.8) (304.8) (304.8) (304.8) (304.8) (304.8) (304.8) (304.8)
Drive Pin Retainer Sub
3-3/8 4-1/4 4-3/4 5-9/16 6-1/4 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-1/2
A
(85.73) (107.95) (120.65) (141.29) (158.75) (165.10) (177.80) (184.15) (196.85) (203.20) (209.55) (215.90) (241.30)
10-17/64 6-1/8 7-1/32 7-9/16 8-57/64 8-7/8 8-59/64 8-61/64 10 10 10-3/4 10 10-7/32
B
(260.75) (155.58) (178.60) (192.09) (225.8) (225.43) (226.62) (227.41) (254.00) (254.00) (273.05) (254.00) (256.59)
3-3/4 5-1/4 4-31/32 4-15/16 5-61/64 6 6-61/64 6-29/32 6 6 5-61/64 5-29/32 8-7/32
C
(95.25) (133.35) (126.21) (125.41) (151.21) (152.40) (176.61) (175.42) (152.40) (152.40) (151.21) (150.02) (208.76)
2-7/8 3-1/32 3-11/32 3-11/32 4-21/64 4-21/64 4-21/32 4-21/32 5-1/4 5-1/4 5-5/8 5-5/8 6-1/16
D
(73.03) (76.96) (84.96) (84.93) (109.9) (109.9) (118.27) (118.27) (133.35) (133.35) (142.88) (142.88) (153.98)
ES20.39872J 33 of 39 Hydra-Jar AP
Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 4 Tables & Charts
Table 10 continued
Assembly
16577 15360 16790 20182042 17096 16293 16300 16334 16255 16257 16259 16316 16250
Numbers
3-3/8 4-1/4 4-3/4 5-1/8 6-1/4 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-1/2
Tool OD
(85.73) (107.95) (120.65) (130.18) (158.75) (165.10) (177.80) (184.15) (195.85) (203.20) (209.55) (215.90) (241.30)
1-1/2 2 2-1/4 2-1/4 2-3/4 2-3/4 2-3/4 2-3/4 3 3 3 3 3
Tool ID
(38.1) (50.80) (57.15) (57.15) (69.85) (69.85) (69.85) (69.85) (76.20) (76.20) (76.20) (76.20) (76.20)
Fluid Cylinder
3-3/8 4-1/4 4-3/4 5-3/16 6-1/4 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-1/2
A
(85.73) (107.95) (120.65) (131.76) (158.75) (165.10) (177.80) (184.15) (196.85) (203.20) (209.55) (215.90) (241.30)
2-3/4 3-5/8 4 4 5-1/4 5-29/64 5-7/8 5-7/8 6-5/8 6-5/8 6-7/8 6-7/8 7-5/16
B
(69.85) (92.08) (101.60) (101.60) (133.4) (138.68) (149.23) (149.23) (168.28) (168.28) (174.63) (174.63) (185.74)
55-5/8 52-7/16 51-1/8 52-5/16 64-5/8 54-5/8 55-15/16 55-15/16 60-3/4 60-3/4 60-3/4 60-3/4 60
C
(1412.88) (1331.91) (1298.58) (1328.74) (1641.5) (1387.78) (1420.81) (1420.81) (1543.05) (1543.05) (1543.05) (1543.05) (1524.00)
Upper Detent Cylinder
3-3/8 4-1/4 4-3/4 5-3/16 6-1/4 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-1/2
A
(85.73) (107.95) (120.65) (131.76) (158.75) (165.10) (177.80) (184.15) (196.85) (203.20) (209.55) (215.90) (241.30)
2-7/8 3-3/4 4-1/8 4-13/32 5-7/16 5-5/8 6-1/8 6-1/8 6-7/8 6-7/8 7-1/8 7-1/8 7-3/4
B
(73.03) (95.25) (104.78) (111.92) (138.1) (142.88) (155.58) (155.58) (174.63) (174.63) (180.98) (180.98) (196.85)
2-5/16 2-17/32 2-51/64 2-3/4 3-49/64 3-33/64 3-49/64 3-49/64 4-35/64 4-35/64 4-35/64 4-35/64 5-1/32
C
(52.91) (64.26) (70.87) (69.85) (95.6) (89.41) (95.65) (95.65) (115.57) (115.57) (115.49) (115.49) (127.79)
2-7/8 3-1/2 3-15/16 4-1/16 5 5 5-1/2 5-1/2 6-3/8 6-3/8 6-3/8 6-3/8 7-1/4
D
(73.03) (88.9) (100.0) (103.19) (127.00) (127.00) (139.70) (139.70) (161.93) (161.93) (161.93) (161.93) (184.15)
4-3/8 4-31/32 4-21/32 5-7/16 5-23/32 5-3/4 6-1/8 6-5/64 7 7 6-61/64 6-29/32 8-7/32
E
(111.13) (126.21) (126.21) (138.11) (145.3) (146.05) (155.58) (154.38) (177.80) (177.80) (176.61) (175.42) (208.76)
38-1/2 52-17/32 52-17/32 52 3/64 54-19/32 54-9/16 54-5/8 54-43/64 54-7/8 54-7/8 54-59/64 54-31/32 57-29/32
F
(977.90) (1334.29) (1334.29) (1321.99) (1386.7) (1385.89) (1387.48) (1388.67) (1393.83) (1393.83) (1395.02) (1396.21) (1470.82)
Upper Detent Mandrel
2-1/64 2-1/2 2-3/4 2-3/4 3-11/16 3-7/16 3-1/2 3-1/2 4-1/2 4-1/2 4-1/4 4-1/4 4-3/4
A
(51.21) (63.50) (69.85) (69.85) (93.7) (87.31) (88.90) (88.90) (114.30) (114.30) (107.95) (107.95) (120.65)
1-1/2 2 2-1/4 2-1/4 2-3/4 2-3/4 2-3/4 2-3/4 3 3 3 3 3
B
(38.10) (50.80) (57.15) (57.15) (69.85) (69.85) (69.85) (69.85) (76.20) (76.20) (76.20) (76.20) (76.20)
2-1/16 2-33/64 2-13/16 2-13/16 3-3/4 3-1/2 3-3/4 3-3/4 4.530 4.530 4-17/32 4-17/32 5
C
(52.40) (64.01) (71.4) (71.4) (95.3) (88.9) (95.25) (95.25) (115.06) (115.06) (115.09) (115.09) (127.00)
47-23/32 48-7/16 47-3/8 47-3/8 59 49 49-1/4 49-1/4 53-3/8 53-3/8 59-3/8 59-3/8 52-3/4
D
(1212.06) (1230.31) (1203.33) (1203.33) (1498.6) (1244.60) (1250.95) (1250.95) (1355.73) (1355.73) (1508.13) (1508.13) (1339.85)
2-5/8 5 5 5 5-1/4 5-1/2 5-1/2 5-1/2 6 6 3-1/2 3-1/2 5-5/8
E
(66.68) (127.00) (127.00) (127.00) (133.4) (139.70) (139.70) (139.70) (152.40) (152.40) (88.90) (88.90) (142.88)
2-3/16 2-7/8 2-7/8 2-7/8 3 3 2 2 3-1/2 3-1/2 1-1/2 1-1/2 2-7/8
F
(55.56) (73.03) (73.03) (73.03) (76.20) (76.20) (50.80) (50.80) (88.90) (88.90) (38.10) (38.10) (73.03)
14-23/32 18 18 18 20 20 20 20 21-9/16 21-9/16 21-9/16 21-9/16 22-1/16
G
(373.86) (457.20) (457.20) (457.20) (508.00) (508.00) (508.00) (508.00) (547.69) (547.69) (547.69) (547.69) (560.39)
2-21/32 3-3/8 3-3/4 3-3/4 4-3/4 4-3/4 5-3/8 5-3/8 6-1/8 6-1/8 6-1/8 6-1/8 7
H
(67.46) (85.73) (95.25) (95.25) (120.65) (120.65) (136.53) (136.53) (155.58) (155.58) (155.58) (155.58) (177.80)
2-1/16 2-33/64 2-3/4 2-3/4 3-1/2 3-1/2 3-3/4 3-3/4 4.530 4.530 4-17/32 4-17/32 5
I
(52.40) (64.01) (69.90) (69.90) (88.90) (88.90) (95.25) (95.25) (115.06) (115.06) (115.09) (115.09) (127.00)
Connector Sub
2-7/8 3-3/4 4-1/8 4-7/16 5-7/16 5-7/8 6-1/8 6-1/8 6-7/8 6-7/8 6-7/8 6-7/8 7-3/4
A
(73.03) (95.25) (104.78) (112.71) (138.1) (149.23) (155.58) (155.58) (174.63) (174.63) (174.63) (174.63) (196.85)
2-11/32 2-63/64 3-3/8 3-3/8 4-7/16 4-1/2 4-1/2 4-1/2 5-1/2 5-1/2 4-7/8 4-7/8 5-3/8
B
(59.53) (75.79) (85.73) (85.73) (112.7) (114.30) (114.30) (114.30) (139.70) (139.70) (123.83) (123.83) (136.53)
3-3/4 4-31/32 4.969 5-1/8 5-45/64 5-7/8 5-53/64 5-25/32 6-1/2 6-1/2 6-13/32 6-23/64 6-63/64
C
(95.25) (126.21) (126.21) (130.18) (144.9) (149.23) (148.03) (146.84) (165.10) (165.10) (162.72) (161.53) (177.40)
8 7-1/16 7-1/16 6-47/64 9-15/32 9-1/8 9-7/32 9-19/64 10 10 10-11/64 10-17/64 9-13/32
D
(203.20) (179.39) (179.39) (171.05) (240.5) (231.78) (234.16) (236.14) (254.00) (254.00) (258.37) (260.75) (238.92)
3-3/8 4-1/4 4-3/4 5-9/16 6-5/16 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-1/2
E
(85.73) (107.95) (120.65) (141.29) (160.3) (165.10) (177.80) (184.15) (196.85) (203.20) (209.55) (215.90) (241.30)
3-3/4 4-31/32 4.969 5-1/8 5-45/64 5-7/8 5-53/64 5-25/32 6-1/2 6-1/2 6-13/32 6-23/64 6-63/64
F
(95.25) (126.21) (126.21) (130.18) (144.9) (149.23) (148.03) (146.84) (165.10) (165.10) (162.72) (161.53) (177.40)
38-1/2 52-17/32 52-17/32 54-19/32 54-9/16 54-5/8 54-43/64 54-7/8 54-7/8 54-59/64 54-31/32 57-29/32
F
(977.90) (1334.29) (1334.29) (1386.70) (1385.89) (1387.48) (1388.67) (1393.83) (1393.83) (1395.02) (1396.21) (1470.82)
Neutralizer Mandrel
2-1/4 2-7/8 3-5/16 3-5/16 4-1/8 4-3/8 4-3/8 4-3/8 5-1/4 5-1/4 4-3/4 4-3/4 5-1/4
A
(57.15) (73.03) (84.14) (84.14) (104.8) (111.13) (111.13) (111.13) (133.35) (133.35) (120.65) (120.65) (133.35)
7-21/32 7-7/16 7-1/8 7-1/8 8-11/16 7-1/16 8-9/32 8-9/32 8-5/8 8-5/8 6-1/2 6-1/2 9-1/8
B
(194.47) (188.91) (180.98) (180.98) (220.7) (179.39) (210.34) (210.34) (219.08) (219.08) (165.10) (165.10) (231.78)
2-1/16 2-33/64 2-49/64 2-49/64 3-3/4 3-1/2 3-3/4 3-3/4 4-17/32 4-17/32 4-17/32 4-17/32 5
C
(52.40) (64.01) (70.36) (70.36) (95.3) (88.90) (95.25) (95.25) (115.06) (115.06) (115.09) (115.09) (127.00)
1-1/2 2 2-1/4 2-1/4 2-3/4 2-3/4 2-3/4 2-3/4 3 3 3 3 3
D
(38.10) (50.80) (57.15) (57.15) (69.9) (69.85) (69.85) (69.85) (76.20) (76.20) (76.20) (76.20) (76.20)
62-9/16 85 87-3/4 87-3/4 92-5/16 93-15/16 92-23/32 92-23/32 99-5/8 99-5/8 98-1/4 98-1/4 94-3/8
E
(1589.09) (2159.00) (2228.85) (2228.85) (2344.7) (2386.00) (2355.06) (2355.06) (2530.48) (2530.48) (2495.55) (2495.55) (2397.13)
2-13/32 3-11/16 3-11/16 3-11/16 4-1/8 4-1/4 4-27/64 4-27/64 5-3/32 5-3/32 5 5 5
F
(61.11) (93.66) (93.66) (93.66) (104.8) (197.95) (112.32) (112.32) (129.38) (129.38) (127.00) (127.00) (127.00)
ES20.39872J 34 of 39 Hydra-Jar AP
Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 4 Tables & Charts
Table 10 continued
Assembly
16577 15360 16790 20182042 17096 16293 16300 16334 16255 16257 16259 16316 16250
Numbers
3-3/8 4-1/4 4-3/4 5-1/8 6-1/4 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-1/2
Tool OD
(85.73) (107.95) (120.65) (130.18) (158.75) (165.10) (177.80) (184.15) (195.85) (203.20) (209.55) (215.90) (241.30)
1-1/2 2 2-1/4 2-1/4 2-3/4 2-3/4 2-3/4 2-3/4 3 3 3 3 3
Tool ID
(38.1) (50.80) (57.15) (57.15) (69.85) (69.85) (69.85) (69.85) (76.20) (76.20) (76.20) (76.20) (76.20)
Neutralizer Piston
2-47/64 3-39/64 3-63/64 3-63/64 5-1/4 5-23/64 5-47/64 5-47/64 6-31/64 6-31/64 6-31/64 6-31/64 7-23/64
A
(69.34) (91.82) (101.35) (101.35) (133.4) (136.27) (145.65) (145.65) (164.70) (164.70) (164.70) (164.70) (186.93)
3 4 4 4 4 4 4 4 4 4 4 4 4
B
(76.20) (101.60) (101.60) (101.60) (101.60) (101.60) (101.60) (101.60) (101.60) (101.60) (101.60) (101.60) (101.60)
2-5/64 2-17/32 2-51/64 2-51/64 3-3/4 3-33/64 3-49/64 3-49/64 4-35/64 4-35/64 4-35/64 4-35/64 5-1/64
C
(52.91) (64.26) (70.88) (70.88) (95.3) (89.42) (95.65) (95.65) (115.49) (115.49) (115.49) (115.49) (127.40)
Neutralizer Cylinder
3-3/8 4-1/4 4-3/4 5 3/16 5-15/16 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-1/2
A
(85.73) (107.95) (120.65) (131.76) (134.9) (165.10) (177.80) (184.15) (195.85) (203.20) (209.55) (215.90) (241.30)
28-5/8 45-1/4 45-5/16 45 5/16 46-3/8 46-3/8 46-3/8 46-3/8 50-1/4 50-1/4 50-1/4 50-1/4 47
B
(727.08) (1149.35) (1150.94) (1150.94) (1177.93) (1177.93) (1177.93) (1177.93) (1276.35) (1276.35) (1276.35) (1276.35) (1193.80)
2-3/4 3-5/8 4 4 5-1/4 5-3/8 5-3/4 5-3/4 6-1/2 6-1/2 6-1/2 6-1/2 7-3/8
C
(69.85) (92.08) (101.60) (101.60) (133.4) (136.53) (146.05) (146.05) (165.10) (165.10) (165.10) (165.10) (187.33)
2-3/4 3-5/8 4 4 5-1/4 5-3/8 5-3/4 5-3/4 6-1/2 6-1/2 6-1/2 6-1/2 7-3/8
D
(69.85) (92.08) (101.60) (101.60) (133.4) (136.53) (146.05) (146.05) (165.10) (165.10) (165.10) (165.10) (187.33)
2-3/16 3 3 3-1/4 4-1/2 4 5 5 4-3/4 4-3/4 5-1/2 5-1/2 6-1/2
E
(55.56) (76.20) (76.20) (82.55) (114.9) (101.60) (127.00) (127.00) (120.65) (120.65) (139.70) (139.70) (165.10)
12-13/16 21-3/4 21-3/4 20-5/8 21-3/16 22-5/16 21-3/16 20-1/8 24-1/8 24-1/8 23-1/8 23-1/8 22-1/2
F
(325.44) (552.45) (552.45) (523.88) (538.2) (566.74) (538.16) (511.18) (612.78) (612.78) (587.38) (587.38) (571.50)
3 1-3/4 1-13/16 4-1/6 4 1-3/4 4 4 2 2 4 4 2
G
(76.20) (44.45) (46.04) (105.83) (101.6) (44.45) (101.60) (101.60) (50.80) (50.80) (101.60) (101.60) (50.80)
12-13/16 21-3/4 21-3/4 20 5/8 21-3/16 22-5/16 21-3/16 20-1/8 24-1/8 24-1/8 23-1/8 23-1/8 22-1/2
H
(325.44) (552.45) (552.45) (523.88) (538.16) (566.74) (538.16) (511.18) (612.78) (612.78) (587.38) (587.38) (571.50)
Lower Detent Cylinder
3-3/8 4-1/4 4-3/4 5-3/16 6-1/4 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-1/2
A
(85.73) (107.95) (120.65) (131.76) (158.75) (165.10) (177.80) (184.15) (195.85) (203.20) (209.55) (215.90) (241.30)
2-7/8 3-3/4 4-1/8 4-13/32 5-1/4 5-5/8 5-3/4 5-3/4 6-7/8 6-7/8 6-7/8 6-7/8 7-3/4
B
(73.03) (95.25) (104.78) (111.92) (133.4) (142.88) (146.05) (146.05) (174.63) (174.63) (174.63) (174.63) (196.85)
2-5/64 2-17/32 2-51/64 2-25/32 3-49/64 3.520 3-49/64 3-49/64 4.550 4.550 4-35/64 4-35/64 5-1/32
C
(52.91) (64.26) (70.87) (70.64) (95.6) (89.41) (95.65) (95.65) (1115.57) (1115.57) (115.49) (115.49) (127.83)
2-49/64 3-1/2 3-7/8 4-1/32 5 5 5-1/2 5-1/2 6-3/8 6-3/8 6-3/8 6-3/8 7-1/4
D
(70.49) (88.90) (98.43) (102.39) (127.0) (127.00) (139.70) (139.70) (161.93) (161.93) (161.93) (161.93) (184.15)
4-3/8 431/32 4-31/32 5-61/64 5-45/64 5-3/4 6-1/8 6-5/64 7 7 6-61/64 6-29/64 8-7/32
E
(111.13) (126.21) (126.21) (151.21) (144.9) (146.05) (155.58) (154.38) (177.80) (177.80) (176.61) (163.91) (208.76)
31-5/8 52-17/32 52-17/32 52-27/64 54-39/64 54-9/16 54-5/8 54-43/64 54-7/8 54-7/8 54-59/64 54-31/32 57-29/32
F
(803.28) (1334.29) (1334.29) (1331.52) (1387.1) (1385.89) (1387.78) (1388.67) (1393.83) (1393.83) (1395.02) (1396.21) (1470.82)
Lower Detent Mandrel
2-21/32 3-3/8 3-3/8 3-3/8 4-1/8 4-3/4 5-1/4 5-1/4 6-1/8 6-1/8 6-1/8 6-1/8 6-7/8
A
(67.46) (85.73) (85.73) (85.73) (104.8) (120.65) (133.35) (133.35) (155.58) (155.58) (155.58) (155.58) (175.63)
4-1/16 12 10-1/2 10-1/2 12-3/8 12-3/8 8-15/32 13-31/32 13 13 8-1/2 8-1/2 13-1/4
B
(103.19) (304.80) (266.70) (266.70) (314.33) (314.33) (215.11) (354.81) (330.20) (330.20) (215.90) (215.90) (336.55)
35-9/32 41-1/2 42 42 42-3/8 42 45-29/32 40-13/32 41-3/4 41-3/4 40-1/4 40-1/4 43-5/8
C
(896.14) (1054.10) (1066.8) (1066.80) (1076.3) (1066.8) (1166.12) (1026.31) (1060.45) (1060.45) (1022.35) (1022.35) (1108.08)
2-1/16 2-33/64 2-49/64 2-49/64 3-3/4 3-1/2 3-3/4 3-3/4 4-17/32 4-17/32 4-17/32 4-17/32 5
D
(52.40) (64.01) (70.36) (70.36) (95.25) (88.90) (95.25) (95.25) (115.09 (115.09 (115.09) (115.09) (127.00)
1-1/2 2 2-1/4 2-1/4 2-3/4 2-3/4 2-3/4 2-3/4 3 3 3 3 3
E
(38.10) (50.80) (57.15) (57.15) (69.85) (69.85) (69.85) (69.85) (76.20) (76.20) (76.20) (76.20) (76.20)
Lower Sub
3-3/8 4-1/4 4-3/4 5-3/16 6-1/4 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-1/2
A
(85.73) (107.95) (120.65) (131.76) (158.75) (165.10) (177.80) (184.15) (195.85) (203.20) (209.55) (215.90) (241.30)
3-1/8 3-3/4 4 4-3/16 5-3/8 5 5-1/2 5-1/2 6-1/2 6-1/2 6-1/2 6-1/2 8-1/2
B
(79.38) (95.25) (101.60) (106.36) (136.5) (127.00) (139.70) (139.70) (165.10) (165.10) (165.10) (165.10) (215.90)
3-3/8 4-1/4 4-3/4 5-3/16 6-1/4 6-1/2 7 7-1/4 7-3/4 8 8-1/4 8-1/2 9-1/2
C
(85.73) (107.95) (120.65) (131.76) (158.75) (165.10) (177.80) (184.15) (195.85) (203.20) (209.55) (215.90) (241.30)
1-1/2 2 2-1/4 2-3/4 2-3/4 2-3/4 2-3/4 2-3/4 3 3 3 3 3
D
38.10 (50.80) (57.15) (69.85) (69.85) (69.85) (69.85) (69.85) (76.20) (76.20) (76.20) (76.20) (76.20)
7-1/4 7-5/8 12-3/4 14-1/8 11-3/4 12-5/32 11-3/4 11-23/64 12 11-9/16 11-9/16 14-5/16 11-3/4
E
(184.15) (193.7) (323.85) (358.78) (298.45) (308.9) (298.45) (288.53) (304.80) (293.68) (293.68) (363.5) (298.45)
18 23-7/8 19 16-3/8 17-13/16 17-7/16 17-13/16 18-13/64 18 15-7/8 18-7/16 19-13/64 18
F
(457.20) (606.4) (482.6) (415.93) (452.44) (442.9) (452.44) (462.46) (457.20) (4033.2) (468.31) (487.76) (457.20)
41-1/2 47-3/4 47-3/4 66-3/4 48-7/8 58 58 58 50 50 50 50 50
G
(1054) (1213) (1213) (1695) (1241.4) (1473) (1473) (1473) (1270) (1270) (1270) (1270) (1270)
5-1/8
2-3/16 2-3/4 3 3 4 4 4 4 4-3/4 4-3/4 4-3/4 4-3/4
H (130.18
(55.56) (69.85) (76.20) (76.20) (101.60) (101.60) (101.60) (101.60) (120.65) (120.65) (120.65) (120.65)
)
ES20.39872J 35 of 39 Hydra-Jar AP
Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 4 Tables & Charts
Fishing Dimensions are used to determine the type and size of equipment needed to
recover a Latch tool part lost in the hole. Use Figure 19 in conjunction with Table 11.
Figure 19
Latch Fishing Dimensions
A
B A
LOWER
E DETENT D
C MANDREL E LATCH
D CYLINDER
C
A B
H
B
E C
LATCH
MANDREL A
F D D
G C
F LOWER
SUB
A
E
B
C B
NEUTRALIZER
CYLINDER-LATCH
E
ES20.39872J 36 of 39 Hydra-Jar AP
Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Table 11
Fishing Dimensions Latch
Assembly (125.98) (147.83) (181.10)
H17147 H17146 H17148 Assembly
Number H17147 H17146 H17148
Tool OD Number
4 3/4 6 1/2 8 Tool OD
inches 4 3/4 6 1/2 8
(120.65) (165.10) (203.20) inches
(mm) (120.65) (165.10) (203.20)
(mm)
Lower Detent Mandrel-Latch
Latch Cylinder
3 3/4 4 3/4 6 1/8
A
(95.25) (120.65) (155.58) 4 13/16 6 9/16 8 1/6
A
6 7/8 6 7/8 7 3/8 (122.24) (166.69) (204.79)
B
(164.63) (164.63) (180.69) 2 51/64 3 33/64 4 35/64
B
52 1/4 55 3/4 57 (70.87) (89.41) (115.57)
C
(1280.13) (1365.88) (1447.80) 3 3/16 4 5
2 12/16 3 1/2 4 17/32 C
D (81.00) (101.60) (127.00)
(70.36) (88.90) (111.02) 4 5 31/64 6 3/8
2 1/4 2 3/4 3 D
E (101.60) (139.19) (162.05)
(57.15) (67.38) (76.20)
35 1/2 35 1/4 35 1/4
E
Latch Mandrel (900.18) (895.35) (895.35)
5 5 1/4 5 1/4
A 3 5/16 4 5/16 5 1/4 F
(128.52) (133.35) (133.35)
(84.14) (109.52) (133.35)
7 15/16 6 11/16 7 7/16 Lower Sub
B
(194.47) (163.84) (182.22) 4 13/16 6 9/16 8 1/16
30 13/16 31 4/7 30 1/16 A
C (117.90) (160.77) (197.53)
(754.91) (773.28) 736.53
2 1/4 2 3/4 3
30 1/2 29 3/4 30 1/2 B
D (55.13) (67.38) (73.25)
(774.70) (755.65) (774.70)
3 3 7/8 4 3/4
3 3/32 3 13/16 4 13/16 C
E (73.25) (94.94) (116.38)
(78.49) (97.03) (122.17)
4 1/32 5 1/8 6 29/64
2 49/64 3 1/2 4 1/2 D
F (98.77) (125.56) (158.10)
(70.36) (88.90) (114.30)
3 7/8 4 3/8 4 7/8
2 1/4 2 3/4 3 E
G (94.94) (107.19) (119.44)
(57.15) (69.85) (76.20)
40 1/8 39 5/8 43 1/8
2 21/32 3 11/32 4 19/64 F
H (983.06) (946.31) (1056.56)
(67.31) (84.84) (109.22)
Neutralizer Cylinder-Latch
4 13/16 6 9/16 8 1/6
A
(122.24) (166.69) (204.79)
38 17/32 37 11/16 39 3/32
B
(978.92) (957.07) (987.55)
3 7/8 4 3/4 6 3/8
C
(98.43) (120.65) (161.93)
3 3/8 4 3/8 5 3/8
D
(85.73) (111.13) (136.63)
E 4 31/32 5 13/16 6 29/32
ES20.39872J 37 of 39 Hydra-Jar AP
Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 4 Tables & Charts
Figure 20
Pump Pressure Extension Load
ES20.39872J 38 of 39 Hydra-Jar AP
Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
Section 4 Tables & Charts
Figure 21
Delay Times vs Load
Full Detent
Hydra-Jar AP tool in the fully opened (or closed) position, prior to striking.
Short Detent
Hydra-Jar AP tool in a partially opened (or closed) position, prior to striking.
Delay Time
The time elapsed between cocking and firing the Hydra-Jar AP tool. Hole drag not
accounted for in Figure 21.
Test Load
Functional test performed at service centers.
ES20.39872J 39 of 39 Hydra-Jar AP
Schlumberger Private – Double-Acting Hydraulic Drilling Jar,
Customer Product Classification Hydraulic Drilling Jar Operating Instructions
P.O. Box 60068 • Houston, Texas 77205-0068
U.S. and Canada: 800-877-6484
Tel: 281-443-3370 • Fax: 281-233-5121
www.slb.com
Schlumberger Private – Customer Product Classification