A-Z Casing Cutters
A-Z Casing Cutters
A-Z Casing Cutters
DOWNHOLE
SERVICE TOOLS
AND
MARINE
ANCHORING SYSTEMS
130
HOUSTON, TEXAS
A BRIEF HISTORY
Founded in 1958, A-Z International began business with a
charter to supply superior products and services to the oil and
gas well drilling industry on a world-wide basis. The initial products were downhole milling tools which were marketed both
domestically and internationally. The bulk of A-Z's initial sales
were in Venezuela, more specifically, sales and service operations were centered in the Venezuelan states of Anzoategui and
Zulia which are the equivalent of Texas and Louisiana in the
domestic market. A-Z International Tool Company draws its
name from the first letters of these states.
In 1960, underreamers were added to the product line and
A-Z's domestic service operations were expanded to meet
growing industry needs. Casing cutters were introduced in 1964
which led A-Z to develop proprietary plug and abandon
methods for offshore wells and a variety of new tool systems for
the offshore drilling industry. Focusing engineering and operational talent on marine drilling needs eventually led to the
patented "One-Trip Cut and Recovery System" for recovering
subsea wellheads from the ocean floor.
A-Z's first international service center opened its doors in 1965
in Venezuela. Since that time, international service centers have
been founded in Scotland, Singapore, Brunei, Indonesia, China,
Egypt, Oman, Norway, and Angola.'Domestically the company
operates from several locations on the Gulf and Pacific coasts.
Enjoying a steady growth and profitability, the company
established its own product manufacturing operation in 1963 at
3317 West 11th Street in Houston, Texas, and has been headquartered at that location since. To meet market demands, A-Z's
Service Tool manufacturing capability and capacity have been
increasing steadily since 1963 and currently are housed in a
30,000 square foot facility in Houston.
Drilled-in permanent anchor piles were introduced by A-Z to
the floating drilling industry in 1958 and have been successfully
INDEX
PAGE
ANCHORING SYSTEMS
41
ANCHOR PILES
41
MARINE STRUCTURES
42
BUMPER SUB, FISHING
40
CASING CUTTER, MARINE
12
CASING PATCH, MARINE
18
CASING SCRAPER
29
CASING SIDETRACK SYSTEM, A-Z PACK-STOCK..32
CUT AND PATCH STUCK CASING
10
CUT AND PULL (RECOVERY) SYSTEM, ONE TRIP.. 11
DRESSING TOOL, MARINE
21
DYNA-CUT SYSTEM, ONE TRIP
6
FREE-WHEELING STABILIZER
17
HOLE OPENER
28
JUNK BASKET
37
JUNK RETRIEVER*
30
MILLS
JUNK
39
ROCK BIT
26
PAGE
MILLS
PILOT TYPE R
CASING, DRILL PIPE, COLLAR
SECTION
STARTER
STRING
TAPER
VALUMILL
WATERMELON
WINDOW
MUD SAVER VALVE*
ROTARY SHOES
SPEAR, CASING, MARINE, RELEASING
SWIVEL, MARINE
TOTAL SERVICE PLAN
UNDERREAMERS
DUAL ROCK BIT
HARD ROCK, BIG "M"
-.
*New Product
!21
35
36
34
34
35
39
34
34
31
38
14
16
5
22
24
132
LITERATURE
A full line of descriptive and informative literature supplements most
A-Z International tools and systems. Descriptive brochures giving
specifications and operating characteristics are available upon
request. Operator's Manuals, giving detailed operating and
maintenance instructions, are also offered with every tool that A-Z
International manufactures. Thefollowing isasampleoftheliterature
available through your A-Z Sales Representative.
A-Z GENERAL CATALOG
ANCHORING SYSTEMS - PERMANENT ANCHOR PILES
BETTER MILLING METHODS
BIG "M" ROCK UNDERREAMER
DURUNDERREAMER
DYNA-CUT MULTI-CONDUCTOR SEVERING SERVICE
OPERATIONS MANUALS - ALL TOOLS
PACK-STOCK CASING SIDETRACK SYSTEM
TYPE "A" HOLE OPENER
MUD SAVER VALVE
HYDRAULIC JUNK RETRIEVER
HOUSTON, TEXAS
133
Junk Baskets
Reamer Mills
Taper Mills
Rotary Shoes
Section Mills
Rotary Subs
Subsea Anchoring
Systems
134
HOUSTON, TEXAS
USE
The "Dyna-Cut" Wellhead Severing System is capable of
severing up to five (5) cemented strings of casing (7" - 9-5/8" 13-3/8" - 20" - 30") at once with no danger to the drilling rig, rig
personnel orthe environment.'' Dyna-Cut'' can be combined with
the conventional A-Z marine casing cutting tool package for a Dual
Plug & Abandonment System, which allows the small casing sizes
to be cut and pulled mechanically and the remaining casing strings
to be severed explosively.
ADVANTAGES
The "Dyna-Cut" charge filler is stored on the rig in separate
containers as aflammable liquid (Nitromethane) and as acorrosive acid (Diethylenetriamine). Both are biodegradeable and
are not combined until A-Z technicians prepare the charge
container just before lowering it into the well bore.
The exploding bridge wire (EBW) detonators contain no
primary explosive and can only be actuated by the A-Z firing
module, which is hand-carried to the rig by an A-Z technician.
There is no possibility of accidental detonation by other
sources such as radio signals, allowing the rig to maintain
full communications throughout the operation.
The "Dyna-Cut" system is safe and the method of storing,
handling and detonating the explosive charges makes the
system fool-proof.
This system can also be used to jar a subsea wellhead loose
from the ocean floor after all casing has been cut mechanically.
Occasionally friction or excess cement will prevent the wellhead from being retrieved. The "Dyna-Cut" charge will free
the wellhead for retrieval.
OPERATION
The "Dyna-Cut" Wellhead Severing System is shipped to the
rig in the offshore box with sufficient materials to assemble two (2)
charges. The firing control box and the firing module are handcarried by the A-Z service operator to the rig. The service operrator assembles the charge and mixes the chemicals the
chemicals are not explosive until they are properly mixed by percentage of volume. The charge can be lowered into the wellhead on
a sandline using guide wires or on a running tool using drill
pipe/stinger. The method illustrated is the sandline method.
135
SSSagf*-,
GUIDE BASE
SANDLINE METHOD
136
HOUSTON, TEXAS
Visa
Marine Casing
Cutter
Marine
Spear
MSB-10
Marine Swivel
Marine Casing
Patch
Marine Dressing
Tool
137
QUAN.
DESCRIPTION
Casing Cutters
A-Z Casing Cutter, Assembly C7,
53/4"O.D. hydraulic internal cutter
to cut 7" casing, complete but less
cutter arms, 31/2" API Reg. pin
top connection.
2 sets
(6)
2 sets
(6)
2 sets
(6)
2 sets
10
11
12
13
14
15
16
17
2 sets
(6)
2 sets
(6)
2 sets
(6)
ITEM
QUAtfl
18
BB1
DESCRIPTION
NET WT.
19
BBi
20
^^^^
BIB}
21
_____
BBi
22
BBI
23
BBi
29#
320#
I
625#t
760#
170#
60#
-
60#
26
27
28
29
1955#
190#
30
31
235#
290#
32
33
970#
285#
87# ;
100#
60#
120#
138
HOUSTON, TEXAS
10. Run A-Z casing patch and hanger on running tool. Casing
patch and hanger are spaced out such that when hanger is
seated in 9%" x 7" bowl, the lower portion of the casing patch
will be over the top of the cut casing.
11. Run A-Z Marine Spear (Fig. 2) and latch into cut off casing
below casing patch. Pull sufficient strain on casing & place
casing under tension. Slack off on spear to set slips in
casing patch. Release spear and pull to rotary.
t- STUCK T CASING
NOTE: BOP Stack, Marine Riser and Slack Joint not shown in
these views.
HOUSING
3CT HOUSING
15'
APPROXIMATELY
In this illustration, 7" casing has stuck while going in the hole.
1. Nipple up and cement the casing in the usual manner.
2. Leave enough uncemented casing below the point where
the casing patch will be set so that the desired amount of
stretch can be taken on the casing before setting the slips of
the casing patch.
3. Drop riser inner barrel and burn casing in two as near the
water line as possible.
4. Raise inner barrel and reconnect flow line.
10
Figure 2
139
Figure 4
11
140
HOUSTON, TEXAS
USE
The A-Z Marine Casing Cutter is builtto withstand extremeshock
encountered in cutting multiple strings of uncentralized conductor
pipe. Dueto the unique construction of thistool, the rugged cutter
arms expand outward up to 5 times the diameter of the tool body
and achieve maximum stability under all types of adverse cutting
conditions, including hard spots, eccentricity, interrupted cuts, eta.
For example, the 133/s" casing cutter measures only 11%"
diameter and cuts all ranges and weights of pipe through 60".
-TOP SUB
ADVANTAGES
Cuts multiple strings smoothly, even when each string is
not concentric.
,
Affords maximum expansion of blades up to 5 times body
diameter.
Rugged 3-blade construction provides fast cut at high
speeds.
Cutter arms can be easily retracted by simply picking up on
drilling string.
PISTON
PISTON PACKING
SNAP RING
PISTON TUBE PACKING
"O"-RING
ORIFICE
SPRING
PISTON TUBE
PISTON TUBE
WEAR PAD
HINGE PIN
CUTTER ARM
BODY
\/
12
OPERATION
The A-Z Marine Casing Cutter is simple to operate. The tool is
run to the desired depth and slow rotation is started. The pumps
are turned on and, as the pressure in the tool increases, a piston
is actuated, moving the cutter arm into cutting position. Rotary speed
is accelerated and pump pressure is gradually increased until the
cutter arms have expanded to their maximum position. After
finishing the cut, the tool is retracted by simply shutting off the pumps
and picking up.
141
TOOL DIAMETER
CUTTING RANGE
TOP CONNECTION (API Reg. Pin)
43/8"
1
. 5 /2"-9 /:B"
.
2 /8"
CUTTER COMPLETE,
LESS ARMS
TOP SUB
Part No
Weight
5%"
7"-16"
81/4"
95/s"-30"
93/8"
10% "-36"
11%"
133/8"-60"
12"
133/a"-60"
31/2"
65/8"
65/8"
65/8"
C-7
310lbs.
C-10
iMillaii.mi, 1185lbs.
C-9
i:
'14V2"
16"-60"
65/8"
65/8"
C-13
,,2400 Ibs.
CX-13
2450 Ibs.
C-16
=3000 Ibs.
C-13-1-1
645 Ibs.
C-13-1-1
645 Ibs.
C-13-1-1
645 Ibs.
REPLACEMENT PARTS
BODY
PISTON
HfSl '
157 Ibs.
C-7-1
136 Ibs.
300 Ibs.
"c-10-1
407 Ibs.
Part No
Weight
C-55-2
90 Ibs.
C-7-2
153 Ibs.
C-9-2
490 Ibs.
C-10-2
636 Ibs.
C-13-2-1*
151 4 Ibs.
CX-1 3-2-1*
1665 Ibs.
C-1 6-2-1*
221 5 Ibs.
Part No
Weight
C-55-3
C-7-3
7 Ibs.
-9-3-1
HW Ibs.
C-10-3
26 Ibs.
C-1 3-3
55 Ibs.
C-1 3-3-1
55 Ibs.
C-13-3-1
50 Ibs. '
C-9-4
18 Ibs.
C-10-4
26 Ibs.
C-1 3-4
54 Ibs.
C-1 3-4-1
54 Ibs.
C-13-4-1
55 Ibs. "
7 Ibs.
PISTON TUBE
Part No
Weight
SPRING
Part No
Weight
C-55- 16
1 Ib.
C-7-1 6
1 Ib.
C-9-16
5 Ibs.
C-10-16
5 Ibs.
C-13-16
9 Ibs.
C-13-16
9 Ibs.
C-13-16
9 Ibs.
Part No
Weight
C-7- 11
1 Ib.
C-7-1 1
C-9-11
3 Ibs.
C-10-11
3 Ibs.
C-13-11
5 Ibs.
C-13-11-1
5 Ibs.
C-13-11-1
.5 Ibs.
9W
C-9-8-12
27 Ibs.
10%"-11%"
C-10-8-15
39 Ibs.
13W-16"
C-1 3-8- 19
78 Ibs.
13W-16"
C-1 3-8- 19
78 Ibs.
33/8"
iC-13-8-19
78 Ibs.
1 Ib.
. 7"
C-7-8-9
8 Ibs.
75/8"-85/8"
C-7-8-12
1 1 Ibs.
10%"-133/e"
C-9-8-18
41 Ibs.
10%"-16"
C-1 0-8-22
66 Ibs.
133/8-20"
C-1 3-8-28
138 Ibs.
13W-20"
C-1 3-8-28
138 Ibs.
133/8"-20"
C-1 3-8-28
138 Ibs.
Casing Range...
Part No
Weight
85/8"-11%"
10%"-16
C-9-8-24
69 Ibs.
10%"-20
C-1 0-8-29
93 Ibs.
133/s"-30"
C-1 3-8-36
183 Ibs.
133/8" -30"
C-1 3-8-36
183 Ibs.
133/8"-30"
C-1 3-8-36
183 Ibs.
20"-36"
C-1 3-42
230 Ibs.
20 "-36"
C-1 3-42
230 Ibs.
20"-36"
C-1 3-42
230 Ibs.
C-7-8-15
15 Ibs.
Casing Range...
Part No
Weight
Casing Range...
Part No
Weight
11%"-16"
C-7-8-21
21 Ibs.
Casing Range
Part No
Weight
13W-20"
C-9-8-33
99 Ibs.
10%"-30"
C-1 0-8-42
159 Ibs.
20"-36"
C-1 3-8-52
31 2 Ibs.
20"-36"
C-1 3-8-52
312 Ibs.
20"-36"
C-1 3-8-52
31 2 Ibs.
20"-30"
C-9-8-45
150 Ibs. and
C-9-8-58
200 Ibs
20 "-36"
C-1 0-8-56
30"-60"
C-1 3-8-69
30"-60"
C-1 3-8-69
30 "-60"
C-1 3-8-69
210 Ibs.
41 7 Ibs.
41 7 Ibs.
MULESHOE
Part No
Weight
C-55-5
8 Ibs.
ORIFICE
Part No
Weight
B-50400-001
1/4 Ib.
REDRESSING KIT
Part No
Weight
C-55-15
20 Ibs.
%17lbs.
30"-60"
C-1 6-8-69
365 Ibs.
Casing Range...
Part No
Weight
C-9-5
49 Ibs.
C-10-5
72 Ibs.
B-50400-004
1/2 Ib.
B-50400-007
1/2 Ib.
B-50400-007
1/2 Ib.
B-50400-009
1/2 Ib.
B-50400-009
1/2 Ib.
B-50400-009
1/2 Ib.
C-7-1 5
20 Ibs.
C-9- 15
20 Ibs.
C-1 0-1 5
20 Ibs.
C-1 3-1 5
20 Ibs.
CX-13-15
20 Ibs.
r-16-15 ._.
20 Ibs. IB
NOTE:
1.) When cutting casing strings larger than 20", we recommend using an A-Z Four-Bladed Free-Wheeling Stabilizer. This tool is 17'/4" O.D. and features
replaceable stabilizer blades. By interchanging the blades, stabilization can be achieved in all sizes of pipe from 20" up to and including 60" diameter. See page
15 for specifications.
2.) We strongly recommend that the largest possible cutter be used for a particular size of casing. The large sweep cutter arms are for use in cases where the
casings are cemented together.
Kit Includes: Hinge Pins. Packing, Socket Set Screw. Lock Screw, Lock Washer. "O" Ring. Snap Ring.
NOTE: It is strongly recommended that the largest possible cutter be used for a particular size of casing. The large sweep cutter arms are for use In cases where
the casings are cemented together.
13
142
HOUSTON, TEXAS
ADVANTAGES
in.
BUMPER RING
SLIP HOLDER
SOCKET HEAD CAP SCREW
AND LOCK WASHER
SLIP SEGMENTS
OPERATION
-MANDREL
- NOSE PIECE
MARINE SPEAR
MANDREL ASSEMBLY
STOP RING RETAINER
SLIP HOLDER -
RSP-30
14
The A-Z RSP 30 Marine Spear has a rugged heavy duty body.
It is a bumper type spear designed for engagement and pulling
of 30" casing. The slips arecarburized to ensure positive engagement of the fish. This tool has an integral packoff element which
seals against the casing I.D. when the slips are set. By sealing off
on the casing I.D., hydraulic pressure may be applied below the
tool which adds lifting force to the fishing string. It operates the same
as standard A-Z Marine Spears. The spear may be re-engaged and
released as many times as desired without coming out of the hole.
The RSP30 may be converted to a RSP 36 for workinSS" casing
by simply changing the slips and adding a bumper ring adaptor.
This conversion may be made without disassembly of the tool.
143
MARINE SPEAR
. 5"
51/2"
7"
9%"
13%"
30"
36"
TOOL OD
. 4V"
49/is"
5'Vie"
81/4"
11%"
26"
26"
. 5"
7"
7Ve"
85/a"
95/a"
10%"
11%"
13%" -16"
185/e"
20"
%"-11/2"
Wall
Wall
. ..
7"
51/2"
6%"
7"
3/4"
Vs"
11/2"
2"
2"
3"
3"
RSP-55
200 Ibs.
RSP-7
340 Ibs.
RSP-9
640 Ibs.
RSP-13
1000 Ibs.
RSP-30
6000 Ibs.
RSP-36
6500 Ibs.
***
RSP-30-2
***
TOP SUB
Part No
Weight
RSP-5-1
. 35 Ibs
RSP-55-1
40 Ibs
RSP-7-1
110 Ibs
RSP-9-1
85 Ibs
RSP-13-1-1
140 Ibs
MANDREL ASSEMBLY
Part No
Weight.
. RSP-5-2
. 137 Ibs
RSP-55-2
150 Ibs
RSP-7-2
185 Ibs
RSP-9-2
320 Ibs
RSP-13-2
610 Ibs
SLIP
Part No
. RSP-5-3*
RSP-55-3*
RSP-7-3*
RSP-9-3*
RSP-13-3*
BUMPER RING
Part No
Weight
RSP-5-10*
11 Ibs
RSP-5-10*
5 Ibs
RSP-7-10*
20 Ibs
RSP-9-10*
40 Ibs
RSP-13-10*
70 Ibs
NOSE PIECE
Part No
Weight.
* *
* *
-k -k
RSP-9-4
110 Ibs
RSP-13-4
155 Ibs
Part No
Weight
RSP-5-11
Nil (4 Req'd.)
RSP-5-11
Nil (4 Req'd.)
B-39549-241
Nil (4 Req'd.)
B-39547-160
Nil (4 Req'd.)
B-39547-160
Nil (6 Req'd.)
Part No
Weight.
. RSP-5-9
Nil
RSP-5-9
Nil
RSP-7-9
Nil
(SLIP HOLDER
Part No
Weight
RSP-13-5*
150 Ibs
RSP-30-5-3
fSLIP SEGMENTS
(SReq'd.)
Part No
Weight
RSP-13-6*
160 Ibs.
RSP-30-3-3
tSLIP HOLDER
BUMPER RING
Part No
Weight.
RSP-13-7
60 Ibs
Part No
Weight
B-41271-854
Nil
tLOCK WASHER
(16 Rea'd )
Part No
Weight.
B-39353-012
Nil
Part No
Weight.
B-39547-142
Nil
RELEASING KEY
Part No
Weight
Part No
Weight.
LOCK WASHER
(2 Rea'd )
Part No
Weight
GUIDE ASSEMBLY
(1 Rea'd )
Part No
Weight
RSP-30-44
SLIP MANDREL
(1 Rea'd.)
Part No
Weight
RSP-30-2-3
Part No
Weight.
RSP-30-34
Part No
Weight
RSP-30-43
Part No
Weight
RSP-30-35
SPACER
17 Rea'd )
Part No
Weight.
RSP-30-41
PACKOFF RUBBER
(1 Rea'd )
Part No
Weight.
RSP-30-38
Part No
Weight
RSP-30-42
Part No
Weight
B-39405-006
Part No
Weight
/a"-11/2"
;||
'LACEME
...
RSP-30-10
B-41271-854
(SReq'd.)
B-39560-173
(12 Req'd)
RSP-7-30
1 Ib.
RSP-13-30
1.5 Ibs.
B-41271-49
Nil
B-41271-73
Nil
B-41271-858
(6 R e q ' d )
B-39353-010
Nil
B-39353-12
(6Req' d )
B-41285-818
., -
*_
^ya_ .
15
143
MARINE SPEAR
...t'S"
51/2"
7"
9Va"
133/s"
30"
36"
TOOLOD
..
49/i5"
5'Vie"
81A"
11%"
26"
26"
... 5"
7"
75/a"
85/s"
95/e"
10%"
11%"
13Ys"-16"
%"-11/2"
185/a"
Wall
Wall
20"
TOOL 1 D
4Vie"
..
7"
5V2"
6%"
7"
..
%"
Vs"
11/2"
2"
2"
3"
3"
RSP-5
225 Ibs
RSP-55
200 Ibs
RSP-7
340 Ibs
RSP-9
640 Ibs
RSP-13
1000 Ibs
RSP-30
6000 Ibs
RSP-36
6500 Ibs
RSP-9-1
85 Ibs.
RSP-13-1-1
140 Ibs.
***
RSP-30-2
***
TOP SUB
Part No
Weight
MANDREL ASSEMBLY
Part No
Weight
SLIP
Part No
BUMPER RING
Part No
Weight
NOSE PIECE
/8"-11/2"
REPLACEMENT PARTS
.
...
f;i
RSP-5-1
35 Ibs.
RSP-55-1
40 Ibs.
RSP-7-1 '
110 Ibs.
'
...
RSP-5-2
137 Ibs.
RSP-55-2
150 Ibs.
RSP-7-2
185 Ibs.
RSP-9-2
320 Ibs.
RSP-13-2
610 Ibs.
...
RSP-5-3*
RSP-55-3*
RSP-7-3*
RSP-9-3*
RSP-13-3*
...
RSP-5-10*
11 Ibs
RSP-5-10*
5 Ibs
RSP-7-10*
20 Ibs
RSP-9-10*
40 Ibs
RSP-13-10*
70 Ibs
Part No
Weight
**
**
**
RSP-9-4
110lbs
RSP-13-4
155 Ibs
Part No
Weight
RSP-5-11
Nil (4 Req'd)
RSP-5-11
Nil (4 R e q ' d )
B-39549-241
Nil (4 Req'd)
B-39547-160
Nil (4 R e q ' d )
B-39547-160
Nil (6 Req' d )
Part No
Weight
RSP-5-9
Nil
RSP-5-9
Nil
RSP-7-9
Nil
tSLIP HOLDER
Part No
Weight
RSP-13-5*
150 Ibs
RSP-30-5-3
tSLIP SEGMENTS
(8 Req'd )
Part No
Weight
RSP-13-6*
160 Ibs
RSP-30-3-3
tSLIP HOLDER
BUMPER RING
Part No
Weight
RSP-13-7
60 Ibs
Part No
Weight
B-41271-854
Nil
t LOCK WASHER
(16 Req'd )
Part No
Weight
B-39353-012
Nil
Part No
Weight
B-39547-142
Nil
RELEASING KEY
Part No
Weight
RSP-7-30
1 Ib
RSP-13-30
15 Ibs
Part No
Weight
B-41271-49
Nil
B-41271-73
Nil
B-41271-858
(6 R e q ' d )
LOCK WASHER
(2 Rea'd )
Part No
Weight
B-39353-010
Nil
B-39353-12
(6Req' d )
GUIDE ASSEMBLY
(1 Req'd )
Part No
Weight
RSP-30-44
SLIP MANDREL
(1 Rea'd \
Part No
Weight
RSP-30-2-3
Part No
Weight
RSP-30-34
Part No
Weight
RSP-30-43
Part No
Weight
RSP-30-35
SPACER
(7 Req'd )
Part No
Weight
RSP-30-41
PACKOFF RUBBER
(1 Req'd )
Part No
Weight
RSP-30-38
Part No
Weight
RSP-30-42
Part No
Weight
B-39405-006
Part No
Weight
B-41 285-81 8
RSP-30-10
B-41271-854
(8 Req' d )
B-39560-173
(12 Req'd.)
15
144
HOUSTON, TEXAS
MANDREL
MANDREL
PACKING
THRUST BEARING
HOUSING ASSEMBLY
PACKING
PIPE PLUG
THRUST BEARING
HOUSING ASSEMBLY
ADAPTER
RETAINER RING
PIPE PLUG
PACKING
SOCKET SET
SCREW
LOWER PACKING
SPACER RING
SOCKET SET SCREW
THRUST BEARING
PACKING
BEARING
PRELOAD RING
BEARING
PRELOAD RING
MSA-10
USE
The A-Z Marine Swivel is used on floaters to suspend the A-Z
Marine Casing Cutter in the hole and maintain it at the same
level during the cutting operation.
It is also used on jackups when running the A-Z Single Trip Cut
and Recovery System. The swivel can be seated on the casing
hanger or wellhead. With the use of the compensator the wave
action imposed on the vessel will not affect the vertical position
of the cutter.
The AZ Marine Swivel comes in two designs, the MSA-10 and
the heavy duty MSB-10.
CONSTRUCTION
THe MSB-10 is stronger than the MSA-10. In both tension and
torsion it is approximately twice as strong. For this reason we
strongly recommend that the MSB-10 be used in most deep
water applications especially where heavy seas, strong ocean
currents, and other adverse factors exist. As the water depth
increases, the eccentric motion of the drill string increases and
this, coupled with the fact that the vessel may at times be
misaligned with the center of the hole, imposes severe bending
and shock load on the swivel. The MSB-10 swivel is built to
withstand these loads.
ADVANTAGES
Insures smooth cut even in the roughest seas.
By accurately spacing out between the swivel and the cutting
tip of the arm, a cut can be made at a precise level within
fractions of an inch.
16
MSB-10
OPERATION
The A-Z Marine Casing Cutter is run on the bottom of the
string. The exact point of cutting can be determined by measuring from the swivel to the cutting tip of the arm. The proper size
of adapters for the casing hanger are then installed on the
swivel. The swivel is slowly lowered into the hole until it seats on
the casing hanger or well head and sufficient weight is set on the
swivel to allow the compensator to separate.
Slow rotation of the pipe is begun, usually from 10 to 20 rpm,
and the pumps are turned on. The housing of the swivel, seated
in the wellhead, remains stationary while the mandrel rotates
with the string and turns the cutter below.
ADAPTERS
The MSB-10 Swivel can be used with adapters for all sizes of
pipe from 133/s" to 30". In situations where smaller casing is
encountered (51/2", 7", 9%") the adapter is replaced with an
adapter sleeve and sub. In the MSA-10 swivel the adapter
sleeves and subs are only required when cutting 51/2" and 7"
casing.
145
MARINE SWIVEL
FREE-WHEELING STABILIZER
MS A-10
MSB-10
SPECIFICATIONS
SPECIFICATIONS
O.D.
Part
No.
O.D.
O.D.
Adapters
Upper
Lower
Upper Lower
To Fit Connection Connection Weight
Section Section I.D.
MSA-10
12"
5'/2"-48"
81/4"
65/s"
,,^PJJRfl;,m
4</2"
903 Ibs.
API I.F. _.__
Part
No.
MSB-10
O.D.
Adapters Upper
Lower
Upper
Lower
Section Section I.D. To Fit Connection Connection Weight
12 O.D. 101/2O.D. 2"
Qty.
Mandrel
Thrust Bearing
Housing Assembly
Adapter
Adapter Retainer Ring
Thrust Bearing
Bearing Preload Ring
Redressing Kit
....
....
1
1
1
1
1
1
1 .
1
Part No.
MSA-10-1-1
565 Ibs
B-50300-001
8 Ibs.
MSA-10-32
197 Ibs
MSA-10-4
71 Ibs
MSA-10-5
12 Ibs.
B-50302-001
10 Ibs
MSA-10-7
20 Ibs.
MSA-10-28 ,
MSA-10-8
MSA-10-9
196 Ibs.
116 Ibs.
MSA-10-10
MSA-10-11
6%
API Reg.
1115 Ibs.
REPLACEMENT PARTS
Weight
6%
API Reg.
REPLACEMENT PARTS
DESCRIPTION
5V?- -48"
300 Ibs.
99Ibs.
DESCRIPTION
Mandrel
...
Housing Assembly
Adapter Retainer Ring
Bearing Preload Ring
Adapter
....
Lower Packing Spacer Ring
Thrust Bearing
Redressing Kit
Qty.
Weight
Part No.
1
1
1
1
1
1
1
.1,,
MSB-10-1-1
MSB-10-32
MSB-10-5
MSB-10-7
MSB-10-4
MSB-10-18
MSB-10-30
MSB-10-28 ,
758Ibs.
129 Ibs.
21 Ibs.
36 Ibs.
150 Ibs.
1 1/2 Ibs
20 Ibs
,516$,.
MSB-10-12
106 Ibs.
MSB-10-9
163 Ibs.
MSB-10-10
MSB-10-11
242 Ibs.
142 Ibs.
TOP STABILIZER
BODY
SLEEVE
ADVANTAGES
Blades remain stationary in pipe while string rotates.
Only one size body needed for all sizes of big-inch pipe.
BLADE
OPERATION
The A-Z Free-Wheeling Stabilizer is installed in the string
directly above the A-Z Marine Cutter. Since the sleeve of the
stabilizer is only 17V*" O.D., it can be run through a small rotary
to the spider deck level where the blades are quickly and easily
installed. It is necessary to remove only one bolt in order to
change each blade.
BOTTOM STABILIZER
BODY
Casing
Range
O.D. Sleeve
FWS-20
20" 60"
17'/4"
Assembly
Bottom
Connection
Weight
6^ API
6% API
1265*
Reg. Pin
Reg. Box
Top
Connection
17
146
HOUSTON, TEXAS
TOP SUB
TOOL
CCP9
CCP13
12"
16%"
CASING SIZE..
CASING PATCH O.D..
EXTENSION O.D..
TYPE OF EXTENSION.,
LENGTH OF EXTENSION.
COMPLETE ASSEMBLY..
CCP76
CCP9
CCP13
WEIGHT OF ASSEMBLY..
600 Ibs.
800 Ibs.
1400 Ibs.
REPLACEMENT PARTS
CCP76-1
CCP9-1
CCP13-1 '
SLIP
CCP76-2
CCP9-2
CCP13-2
SLIP BOWL
CCP76-3
CCP9-3
CCP13-3
TOP SUB
CCP76-9-*
CCP9-9"
CCP13-9-*
LOWER GUIDE
CCP76-23
CCP9-23
CCP13-23
TORQUE PIN
CCP76-26
CCP9-26
CCP13-26
KIT
CCP76-15
CCP9-15
CCP13-15
BODY
18
147
CP66
CP7
CPA76
CPA9
CPA10
CPA13
CP167
CPA20
6%"
7"
7%"
9Ye"
10%"
13%"
163/4"
20"
CASING PATCH O D ..
7 Vi6"
8%"
9"
113/4"
12V2"
15'/e"
19%"
231A"
EXTENSION O D
7W
8%"
9"
11%"
12V2"
151/e"
18%"
22"
TYPE OF EXTENSION
Alloy
Alloy
Alloy
Alloy
Alloy
Alloy
Casing
Alloy
LENGTH OF EXTENSION
5ft
10ft.
10ft.
10ft.
10ft.
10ft.
10ft.
10ft.
COMPLETE ASSEMBLY
CP66
CP7
CPA76
CPA9
CPA10
CPA13
CP167
CPA20
WEIGHT OF ASSEMBLY
450 Ibs
725 Ibs.
850 Ibs.
1105 Ibs.
1593 Ibs.
1700 Ibs.
3176 Ibs.
3900 Ibs.
^PLACEMENT
BODY
CP66-1
CP7-1-1
CP76-1
CP9-1
CP10-1
CP13-1
CP167-1
CP20-1
SLIP
CP66-2
CP7-2-1
CP76-2
CP9-2
CP10-2
CP13-2
CP167-2
CP20-2
CP7-8
CPA76-8
CPA9-8
CPA10-8
CPA13-8
CPC1678
CPA20-8
CP66-9-1
CP7-9-'
CPA76-9-*
CPA9-9-*
CPA10-9-*
CPA13-9-*
CPC167-9"
CPC20-9-*
CP66-10
CP7-10
CP76-10
CP9-10
CPA10-10
CPA13-10
CPC167-10
CPC20-10
CP76-11
CP9-11
CP10-11
CPC167-12
CPC20-12
CPC20-15
EXTENSION
... CP66-8
..
TOP SUB
GUIDE RING
SPRING
EXTENSION SUB
CP66-15
KIT
CP7-15
CPA76-15
CPA10-15
CPA13-15
CPC167-15
CPC12
CPC13
CPC16
CPC20
CPA9-15
SPECIFICATIONS
CPC76
CPC9
CASING SIZE
7%"
9%"
10%"
12%"
13%"
16"
20"
91/2"
113/T
14%"
16"
17"
19"
231/4"
EXTENSION O.D
8%"
103/4"
13%"
15"
16"
18"
22"
TYPE OF EXTENSION
Casing
Casing
Casing
Casing
Casing
Pipe
Casing
10ft
TOOL
CPC10
10ft.
10ft.
10ft.
10ft.
10ft.
10ft.
COMPLETE ASSEMBLY
CPC76
CPC9
CPC10
CPC12
CPC13
CPC16
CPC20
WEIGHT OF ASSEMBLY
700 Ibs.
1050 Ibs.
1500 Ibs.
1980 Ibs.
1480 Ibs.
2500 Ibs.
3900 Ibs.
LENGTH OF EXTENSION
....
REPLACEMENT PARTS
BODY
CP76-1
CP9-1
CP10-1
CP12-1
CP13-1
CP16-1
CP20-1
SLIP
CP76-2
CP9-2
CP10-2
CP12-2
CP13-2
CP16-2
CP20-2
CPC76-8
CP9-8
CPC10-8
CPC12-8
CPC13-8
CPC16-8
CPC20-8
CPC9-9-*
CPC10-9-*
CPC12-9*
CPC13-9-*
CP16-9-*
CPC20-9-*
CP76-10
CP9-10
CPC10-10
CPC12-10
CPC13-10
CPC16-10
CPC20-10
CP76-11
CP9-11
CPC10-11
CPC76-12
CP9-12
CPC10-12
CPC12-12
CPC13-12
CPC16-12
CPC20-12
CPC10-15
CPC12-15
CPC13-15
CPC16-15
CPC20-15
EXTENSION
TOP SUB
... CPC76-9-*
GUIDE RING
SPRING
EXTENSION SUB
KIT
....
.. CPC76-15
CPC9-15
CP16-11
19
148
HOUSTON, TEXAS
CPL7
CPL76
8%"
9"
CPL7
CPL9
CPL10
CPL13
CPL16
CPL20
11%"
121/2"
15'/8"
181/4"
23"
CPL76
CPL9
CPL10
CPL13
CPL16
CPL20
225lbs
475lbs.
450lbs
485lbs
895 Ibs
1575lbs
9%'
CASING SIZE
CASING PATCH O 0
EXTENSION O.D
TYPE OF EXTENSION
LENGTH OF EXTENSION
COMPLETE ASSEMBLY .
WEIGHT OF ASSEMBLY
231 Ibs
- -
REPLACEMENT PARTS
BODY
...
SLIP
CP7-1-1
CP76-1
CP9-1
CP10-1
CP13-1
CP16-1
CP20-1
CP7-2-1
CP76-2
- CP9-2
CP10-2
CP13-2
CP16-2
CP20-2
CP7-9-*
CPA76-9-*
CPA9-9*
CPA10-9-*
CPA13-9-*
CPL16-9-*
CPL20-9-*
CP9-11
CP10-11
CPL9-15
CPL10-15
CPL13-15
CPL16-15
CPL20-15
EXTENSION..
TOP SUB
GUIDE RING
SPRING
EXTENSION SUB
CPL7-15
KIT
CPL76-15
SPECIFICATIONS
SPECIFICATIONS
TOOL
CP076
TOOL
CPS-9
CPS-11
CPS-13
CPS-18
123/re"
14%"
16'/2"
203/4"
EXTENSION OD
16"
20"
Alloy
TYPE OF EXTENSION
CSG
Alloy
10ft.
10ft.
CPS-9
CPS-11
CPS-13
CPS-18
710 Ibs.
1300 Ibs.
2500 Ibs.
2400 Ibs.
CP09
CP010
CPO13
CASING SIZE..
10%"
13%"
CASING SIZE
12"
13V2"
15%"
CASING PATCH 0 D
EXTENSION O.D
9%"
12"
TYPE OF EXTENSION..
Alloy
Alloy
COMPLETE ASSEMBLY
CPO76
CPO9
CP010
CPO13
COMPLETE ASSEMBLY
WEIGHT OF ASSEMBLY
1275 Ibs.
1330 Ibs.
2580 Ibs.
2120 Ibs.
WEIGHT OF ASSEMBLY
LENGTH OF EXTENSION
LENGTH OF EXTENSION
REPLACEMENT PARTS
REPLACEMENT PARTS
BODY
CP076-1
CPO9-1
CP010-1
CP013-1
BODY.
CPS-9-1
CPS-11-1
CPS-13-1
CPS-18-1
SLIP
CP76-2
CP9-2
CP10-2
CP13-2
SLIP
CPS-9-2
CPS-11-2
CPS-13-2
CPS-18-2
CPO9-8
CP010-8
CP013-8
CPS-13-8
CPS-18-8
EXTENSION.
EXTENSION.
CPO76-8
TOP SUB..
CP076-9-* CPO9-9*
CP010-9-* CP013-9-*
TOP SUB.,
CPS-9-9*
GUIDE RING
CP76-10
CP9-10
CPA10-10 CPA13-10
LEAD PACKOFF..
CPS-9-4
CPS-11-4
CPS-13-4
SPRING.
CP76-11
CP9-11
CP10-11
BACK-UP SEAL..
CPS-9-13
CPS-11-13
CPS1313 CPS-18-13
RETAINING RING
CPS-9-21
CP010-15 CPO13-15
SLIP BOWL
CPS-9-3
CPS-11-3
BODY SLIPS..
CPS-9-22
LOWER GUIDE..
CPS-9-23
EXTENSION SUB..
KIT
CP076-15 CPO9-15
20
COUPLING.
CPS-13-3
CPS-18-4
CPS-18-3
CPS-13-27 CPS-18-27
149
CASING PATCH
DRESSING TOOL/PILOT MILL
ADVANTAGES
For dressing, the bottom of the cutting element is dressed at
45. The resulting angle cut on the casing prevents damage to
the packoff elements in the casing patch.
The nose piece is provided with stabilizer blades to insure
proper centralization of the cutting element. The O.D. of these
blades is generally Va" less than the I.D. of the casing to be
milled.
The A-Z Type R Pilot Mill and Dressing Tool is extremely
versatile and, in special cases, can be used with over-size
cutting elements to cut several sizes of casing.
Cutting elements are easily changed on the rig floor.
CUTTER
-MAKEUP RING
NOSE PIECE
TOOL_
R-4
CUTTING
ELEMENT
DRESSING
ELEMENT
41/2"
R-4-3-1
R-4-3-2
5"
6%"
R-5-3-1
R-5-3-3
R-5-3-5
65/s"
7"
7%"
8%"
9%"
R-7-3-1
R-7-3-3
R-7-3-5
R-7-3-7
R-7-3-9
R-5-3-2
R-5-3-4
R-5-3-6
R-7-3-2
R-7-3-4
R-7-3-6
R-7-3-8
R-7-3-1 0
8%"
9%"
R-8-3-1
R-8-3-3
R-8-3-5
R-8-3-7
CASING SIZE
R-5
5'/2"
R-7
R-8
10%"
13%"
R-10
10%"
13%"
16"
R-8-3-2
R-8-3-4
R-8-3-6
R-8-3-8
R-1 0-3-2
R-10-3-4
R-1 0-3-6
R-1 0-3-1
R-1 0-3-3
R-1 0-3-5
- STABILIZER BLADE
i
">
i
1
m
1
m
SPECIFICATIONS
FOR MILLING OR DRESSING (Casing O.D. )
TOP CONNECTION
OUTSIDE DIAMETER (Body)
OUTSIDE DIAMETER (Pilot)
INSIDE DIAMETER
Part No. . .
COMPLETE ASSEMBLY
Weight. . . .
5"65/a"
4%"
6"
7%"
18V
31/2"
3%"
51/2"
7V4"
> 8'/2"
1"
1"
2"
2"
R-4
160 Ibs.
R-5
170 Ibs.
R-8
220lbi^B 456 Ibs.
lu
IP
' 6%" API Reg
rT""*
2"
R-10
635 Ibs.
REPLACEMENT PARTS
Part No. . .
Weight
110 Ibs
NOSEPIECE
Part No
Weight
R-4-2
30 Ibs
CUTTING ELEMENT
(See accompanying chart)
Part No
Weight
MAKE-UP RING
Part No. . .
Weight
R-4-3-*
18 Ibs
R-5-4
1 Ib
R-5-14-*
1 Ib.
R-5-10
1
/2 Ib
BODY
STABILIZER BLADES
(3 Req'd)
Part No .
Weight. . . .
KIT
Part No. . .
Weight
184 Ibs.
R-8-1
229 Ibs.
R-10-1
349 Ibs.
R-5-2
35 Ibs.
R-7-2
114 Ibs
Jk R-8-2
"11 136 Ibs.
-. R-1 0-2
f.216 Ibs.
R-5-3-*
18 Ibs.
R-5-4
1 Ib.
R-5-1 4-*
1 Ib.
R-7-3-*
45 Ibs.
R-8-3-*
59 Ibs.
i R-1 0-3-'
|96 Ibs.
R-7-4
R-8-4
7Ibs.
| R-1 0-4
\ 12 Ibs.
10 Ibs.
', 4 Ibs.
R-5-10
R-7-10
Vfclb
R-5-1
110 Ibs.
3'/2 Ibs.
S-6-14-*
2 Ibs.
. S-6-14-*
1
* 2 /2 Ibs.
R-8- 10
1
/2 Ib.
1 R-1 0-10
f% ib.
21
150
HOUSTON, TEXAS
TOP SUB
The A-Z Dual Rock Type Underreamer is used for drilling and
underreaming simultaneously in soft formations.
In special applications, it can be used for drilling and underreaming short sections of hard formation, such as setting
anchor piling, underwater storage tanks and other marine
structures.
ADVANTAGES
Combines two operations in one drilling and underreaming.
Eliminates need for large blowout preventers.
Utilizes jet drilling principle.
- PISTON PACKING
PISTON
UPPER PISTON TUBE PACKING
PISTON SOCKET SET SCREW
-PISTON TUBE
SPRING
PISTON STOP ASSEMBLY
SOCKET HEAD CAP SCREW
HINGE PIN
-ARM
YOKE
LINK PIN
LINK PIN SCREW AND
SOCKET SET SCREW
LINK
SNAP RING AND
"0"-RING
LOWER PISTON TUBE PACKING
LOWER BUSHING
-BODY AND JET SUB
ASSEMBLY
-THREADED NOZZLE
"O"-RING
22
OPERATION
The operation of the A-Z Dual Rock Type Underreamer is identical with that of the A-Z Rock Bit Underreamer described on
page 26 of this catalog except that a sufficient volume of fluid is
utilized to conform to good jet drilling practices.
151
..
8 /2"
117/a"
117/s"
14%"
14%"
18y8"
141/8-
22ya"
..
81/4"
121/4"
121/4"
14%"
15"
181/2"
19V2"
22Vs"
141/2"
BODY DIAMETER
8%"
11%"
11%"
14>/2"
18"
19"
22"
13" -17"
15" -22"
18" -26"
23" -34"
24" -36"
28" -42"
CONNECTION-PINxBOX DOWN
API REG. TOP AND BOTTOM
41/2"
6*
6%"
6%"
6%"
7*"
7*"
7%"
DUR-13
1750 Ibs.
DUX-13
2700 Ibs.
DUR-16
2600 Ibs.
DUX-16
2888 Ibs.
DUR-20
1100 Ibs.
DUR-21
4380 Ibs.
DUR-24
6365 Ibs.
1
'
COMPLETE ASSEMBLY
LESS ARM AND CONE
ASSEMBLY AND LINKS
Part No
Weight
.. DUR-9
1175 Ibs
TOP SUB
Part No
Weight
..
..
ADJUSTABLE PISTON
STOP ASSEMBLY
Part No
Weight
.. U-8-7
SPRING
REPLACEMENT PARTS
U-10-1
31 5 Ibs.
DUX-16-1
868 Ibs.
DUR-16-1
687 Ibs.
DUX-16-1-1
868 Ibs.
DUR-21-1
1100 Ibs.
DUR-21-1
1100 Ibs.
DUR-24-1
1200 Ibs.
DUR-16-7
32 Ibs.
U-16-1-1
42 Ibs.
DUR-16-7
32 Ibs.
U-16-7
42 Ibs.
DUR-21-7
52 Ibs.
DUR-21-7
52 Ibs.
DUR-21-7
52 Ibs.
.. UU-8-6
Part No
Weight .... .. 6 Ibs
DUR-13-6
12 Ibs.
U-16-6
10 Ibs.
DUR-16-6
9 Ibs.
U-16-6
10 Ibs.
DUR-21-6
23 Ibs.
DUR-21-6
23 Ibs.
DUR-21-6
23 Ibs.
1
'
Part No
Weight
.. DUR-9-35
.. 900 Ibs
DUR-13-33
1325 Ibs.
DUX-13-33
1560 Ibs.
DUR-16-33
1769 Ibs.
DUX-16-33
1730 Ibs.
DUR-20-35
2660 Ibs.
DUR-21-33
2940 Ibs.
DUR-24-33 I
4750 Ibs.
,
Part No
Weight
.. DUR-9-8*
25 Ibs
U-10-8*
56 Ibs.
DUX-13-8V DUR-16-8*
70 Ibs.
101 Ibs.
DUX-16-8**
152 Ibs.
DUR20-8*
235 Ibs.
DUR-21-8*
175 Ibs. .
DUR-24-8* <
200 Ibs.
LINKS-SPECIFY OPENING
Set (6)
Part No
Weight
.. U-9-11t
.. 8 Ibs
DUR-13-11t
14 Ibs.
UM-13-47*
12 Ibs.
DUR-16-11t
15 Ibs.
DUX-16-47
13 Ibs.
DUR-20-11t DUR-21-11t
24 Ibs.
26 Ibs.
DUR-24-11t
30 Ibs.
PISTON
Part No
Weight
.. U-8-3
17 Ibs
DUR-13-3
21 Ibs.
DUX-16-3
43 Ibs.
DUR-16-3
23 Ibs.
DUX-16-3-2
43 Ibs.
DUR-21-3
62 Ibs.
DUR-21-3
62 Ibs.
DUL-21-3-1
62 Ibs.
J
PISTON TUBE
Part No
Weight
.. DUR-9-4
.. 22 Ibs
DUR-13-4
32 Ibs.
DUX-13-4
95 Ibs.
DUR-16-4
60 Ibs.
DUX-1 6-4-3
100 Ibs.
DUR-20-4
120 Ibs.
DUR-21-4-1
105 Ibs.
DUR-24-4-1 1
125 Ibs.
J
YOKE
Part No
Weight
..
DUR-13-5
7 Ibs.
DUX-13-48
20 Ibs.
DUR-16-5
14 Ibs.
DUX-16-48-1 DUR-20-5
26 Ibs.
28 Ibs.
DUR-21-5-1
31 Ibs.
DUR-24-5-1 1
68 Ibs.
'"
LOWER BUSHING
Part No
Weight
.. DUR-9-20 1
3 Ibs
DUR-13-20-1 DUX-13-20
8 Ibs.
12 Ibs.
DUR-16-20
7 Ibs.
DUX-13-20
12 Ibs.
DUR-21-20
50 Ibs.
DUR-24-20
61 Ibs.
UPPER BUSHING
Part No
Weight
DUR-13-21
DUX-16-21
21 Ibs.
DUR-16-21
DUX-16-21
21 Ibs.
ORIFICE-Set(S)
Part No
Weight
B-50884-1
B-50400-016 B-50884-1
1 Ib.
1 Ib.
B-50401
1 Ib.
B-50884-3
1 Ib.
B-50884-3
1 Ib.
B-50400-12
1 Ib.
COMPRESSION TOOL
Part No
Weight
CT-10
45 Ibs.
CT-10
45 Ibs.
CT-16
65 Ibs.
CT-21
65 Ibs.
CT-21
65 Ibs.
CT-21
75 Ibs
SHROUD
Part No
Weight
DOWEL PIN
Part No ....
Weight
PACKING GLAND
Part No
Weight
DUX-13-51
Nil
DUX-13-51
Nil
SPACER RING
Part No
Weight
DUX-13-52
Nil
DUX-13-52
Nil
WEAR PAD
Part No
Weight
REDRESSING KIT
Part No
Weight
U-8-1
190 Ibs
DUR-9-5-1
3 Ibs
B-50883-1
1 Ib
.. CT-8
45 Ibs
CT-16
65 Ibs.
DUR-20-20
40 Ibs.
DUX-13-54
Nil
DUX-13-54
Nil
DUR-20-51
Nil
DUX-13-51
Nil
DUR-20-51
Nil
DUR-20-52
Nil
DUX-13-52
Nil
DUR-20-52
Nil
DUX-16-53
3.5 Ibs.
DUR-20-53
4ibs.
DUX-13-53
3.5 Ibs.
.. DUR-9-31
4 Ibs
DUR-13-31
5 Ibs.
DUX-13-31
5 Ibs.
DUR-16-31
5 Ibs.
DUX-16-31-1 DUR-20-31
5 Ibs.
10 Ibs.
Recommended spares:
1.3 Sets Arm and Cone Assem bly
2.1 Piston
3.1 Piston tube
4.1 Yoke
5.1 Set Links
6. Lower bushing
7.3 Redressing Kits
i
.;
i
i
s.
;;
DUR-21-31
10 Ibs.
DUR-24-31
12 Ibs.
Kit includes:
Hinge pins
Link Pin
Socket Set Screws
Socket Head Cap Screws
Packing
O-Rings
Snap Rings
Thread Nozzle Bushing
Note: Dual Rock Type Underreamer is also available in DUR 30, DUR 42, and DUR 60 sizes for large hole underreaming.
23
152
HOUSTON, TEXAS
TOP SUB
PACKING
PISTON
"O"-RING
SOCKET SET SCREW
ADVANTAGES
Larger cutter arms
Larger bearings
Larger cones
Larger pistons
Larger bores
Improved hydraulics
FKM
SPADE
(ORBULLNOSE)
24
Hydraulics Stepped Up
But that's not all. To keep pace with this sharp increase in
strength, we've stepped up the hydraulics accordingly.
The piston diameter of the U 16 Big "M" is 8" with an effective
area of 49.03 square inches as compared to the DUR 16 piston
diameter of 51/2" with an effective area of 15.45 square inches.
The U 16 "M" is, therefore, capable of operating with approximately half the pressure required by the DUR 16 tool.
153
SPECIFICATIONS
TOOL DIAMETER
(AT SPADE)
12"
147/s"
23"
12%"
15Va"
23V2"
BODY DIAMETER
113/4"
14%"
22"
14%"24"
18 /2"30"
27*38"
6%"
7%"
7%"
UM-13
2065 Ibs
U-16
2265 Ibs.
U-24
3877 Ibs.
...
REPLACEMENT PARTS
TOP SUB
Part No
Weight
... UM-13-1
750 Ibs
U-16-1
800 Ibs.
DUR-"24-1
12000 Ibs.
BODY
Part No
Weight
.. UM-13-2
1100 Ibs
U-16-2
1210 Ibs.
U-24-2
2320 Ibs.
PISTON
Part No
Weight
.. UM-13-3
40 Ibs
U-16-3
39 Ibs.
DUL-21-3
97 Ibs.
Part No
Weight
... UM-13-49
. 41 Ibs
U-16-49
85 Ibs.
YOKE
Part No
Weight
DUR-21-5
31 Ibs.
PISTON TUBE
Part No
Weight
U-24-32
40 Ibs.
SPRING
Part No
Weight
..
UM-13-6
17 Ibs
U-16-6
14 Ibs.
DUR-21-6
23 Ibs.
ADJUSTABLE PISTON
STOP ASSEMBLY
Part No
Weight
... UM-13-7
52 Ibs
U-16-7
42 Ibs.
DUR-21-7
52 Ibs.
Part No
Weight
.. UM-13-8*
91 Ibs
U-16-8"
150 Ibs.
DUR-21-8"
240 Ibs.
LINKS
Set (6)
Part No
Weight
,..
..
U-16-47t
23 Ibs.
DUR-21-11-1
38 Ibs.
ORIFICE
Part No
Weight
... B-50400-015
... 2 Ibs.
B50400-017
2 Ibs.
B-50400-015
2 Ibs.
Part No
Weight
... DUX-13-53
.. 3.5 Ibs.
DUX-16-53
4 Ibs.
DOWEL PIN
Part No
Weight
... DUX-13-54
.. Nil
DUX-13-54
Nil
COMPRESSION TOOL
Part No
Weight
.. CT-13
.. 45 Ibs
CT-16
45 Ibs.
CT-24
75 Ibs.
REDRESSING KIT
Part No
Weight
.. UM-13-22
.. 5 Ibs
U-16-22
5 Ibs.
U-24-22
20 Ibs.
UM-13-47f
13 Ibs.
Recommended spares:
1.3 Sets Arm and Cone Assembly
2.2 Piston Tube and Yoke Assemblies (Yoke and
Tube & Insert Assemblies for U-24)
3.1 Set Links
4.3 Dressing Kits
Kit includes: Hinge Pins, Link Pin, Link Pin Screw, Set Screws. Lock Screws, "O" Rings,
Snap Ring, Packing.
25
154
HOUSTON, TEXAS
ADVANTAGES
-TOP SUB
PISTON PACKING
"O" RING
PISTON SOCKET
SET SCREW
PISTON
SPRING
ADJUSTABLE
STOP ASSEMBLY
BODY
SOCKET SET SCREW
PISTON TUBE
SOCKET HEAD
CAP SCREW
HINGE PIN
ARM
YOKE
ORIFICE
LINK
LINK PIN SCREW
SOCKET
SET SCREW
LINK PIN
ORIFICE
"O" RING
ORIFICE
SNAP RING
SPADE
26
OPERATION
The tool is run to the desired depth and the rock bit cutter arms are raised to cutting
position by pump pressure. The velocity of fluid across a nozzle increases internal
pressure within the cylinder to move a piston which expands the cutter arms. Pump
pressure is gradually increased while the tool is rotating until the cutter arms have cut to
the maximum diameter. Weight is gradually applied and underreaming commences.
During the underreaming operation, the upper portion of the cutter arm pivots in the
body thus eliminating any weight on the cutter arm pins. After the hole is underreamed,
the pump is shut off and the tool is retrieved from the hole. Cutter arms are quickly and
easily changed on the rig floor. Notice that the Underreamer may be expanded and
retracted as often as desired without coming out of the hole.
155
43/4"
6"
7V2"
8%"
91/2"
5"
6'/4"
73/4"
8W
93/4"
93/8"
BODY DIAMETER
45/8"
54"
7V4"
83/8"
7"-9V2"
8"-13"
101/2"-15"
11 1/2"- 17"
121/4"-185/8"
2W
3V2"
41/2"
41/2"
65/a"
U-5
155 Ibs
U-7
375 Ibs.
U-8
500 Ibs.
U-9
640 Ibs.
U-10
1215 Ibs.
Part No....
Weight
REPLACEMENT PARTS
TOP SUB
Part No
Weight
U-5-1
50 Ibs
U-7-1
140 Ibs.
U-8-1
190 Ibs.
U-8-1
190 Ibs.
U-10-1
560
BODY
Part No
U-5-2
U-7-2
U-8-2
U-9-2
U-10-2
PISTON
Part No
Weight
U-5-3
5 Ibs
U-7-3
9 bs.
U-8-3
17 Ibs.
U-8-3
17 Ibs.
U-10-3
16 Ibs.
Part No
Weight
U-5-21
4 Ibs
SU-7-49
61/2 IbS.
U-8-21
6</2 Ibs.
U-8-21
17 Ibs.
U-10-21
24 Ibs.
SPRING
Part No....
Weight ....
S-55-18
2V2 Ibs
U-7-6
6 Ibs.
U-8-6
6 Ibs.
U-8-6
6 Ibs.
U-10-21
9 Ibs.
ADJUSTABLE STOP
PISTON STOP ASSEMBLY
Part No
Weight
U-5-7
2 Ibs
U-7-7
4 Ibs.
U-8-7
9 Ibs.
U-8-7
9 Ibs.
U-10-7
11 Ibs.
Part No....
Weight
U-5-8*
7 Ibs
U-7-8*
12 Ibs.
U-8-8*
26 Ibs.
U-9-8*
28 Ibs.
U-10-8*
56 Ibs.
Part No....
Weight
U-5-11t
2 Ibs
U-7-47f
3 Ibs.
U-8-1 1f
6 Ibs.
U-9-11f
8 Ibs.
U-10-11t
9 Ibs.
COMPRESSION TOOL
Part No
Weight . ...
CT-5
45 Ibs
CT-7
45 Ibs.
CT-8
45 Ibs.
CT-8
45 Ibs.
CT-10
45 Ibs.
Part No
Weight
B-50400-003
1/2 ib
B-50400-009
/2 Ib.
B-50400-013
1/2 Ib.
B-50400-013
1/2 Ib.
Part No....
Weight
U-5-22
1 Ib
U-7-22
2 Ibs.
U-8-22
4 Ibs.
U-9-22
5 Ibs.
U- 1 0-22
5 Ibs. _
REDRESSING KIT
JB
*"
B-50400-014
/2 Ib.
Kit Includes:
Hinge pins, Link Pins, Screws, Socket Head Set Screws, "O"Ring, Snap Ring.
Packing, Lock Nut.
Recommended spares:
1.3 Sets Cutter Arms
2.2 Piston Tube and Yoke Assemblies
3.1 Set Links
4.3 Re-Dressing Kits
27
169
16" Doubler-Pile
16"
133/a"
10'
26'
36'
22" Doubler-Pile
22"
20"
10'
26'
36'
36"
36"
not a
dou bierpile
not a
dou bierpile
50'
41