CN109505567B - A kind of bridge-type screen casing - Google Patents
A kind of bridge-type screen casing Download PDFInfo
- Publication number
- CN109505567B CN109505567B CN201811365172.3A CN201811365172A CN109505567B CN 109505567 B CN109505567 B CN 109505567B CN 201811365172 A CN201811365172 A CN 201811365172A CN 109505567 B CN109505567 B CN 109505567B
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- China
- Prior art keywords
- screen casing
- pressing plate
- barrel seat
- connecting barrel
- limit
- Prior art date
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- 238000003825 pressing Methods 0.000 claims abstract description 52
- 239000004576 sand Substances 0.000 claims abstract description 27
- 239000011148 porous material Substances 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
- E21B43/086—Screens with preformed openings, e.g. slotted liners
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to oil exploration equipment accessory technical fields, and disclose a kind of bridge-type screen casing, the lower horizontal of the upper connecting barrel seat is placed with lower connecting barrel seat, cylinder screen casing group is folded between upper connecting barrel seat and lower connecting barrel seat, the surface of cylinder screen casing group offers sand control sieve pore, Limit screw part is also longitudinally connected between upper connecting barrel seat and lower connecting barrel seat, the corresponding position of the upper surface of the lower surface and lower limit pressing plate of upper limit pressing plate offers clamping annular groove, and cylinder screen casing group includes single screen casing that quantity is no less than two.The form installed using combined type, and upper and lower connect cylinder seat is matched with Limit screw part, the limit for carrying out bushing type, multilayer screen casing is facilitated to fix, the form of multilayer screen casing installation, the processing work of oil body sand control can effectively be carried out, so that the replacement and dismounting enhanced convenience of screen casing part, can be combined formula installation according to screen casing part of the requirement that oil body sand control is handled to different sieve pore hole mesh sizes, different sieve pore shapes.
Description
Technical field
The present invention relates to oil exploration equipment accessory technical field, specially a kind of bridge-type screen casing.
Background technique
Oil exploitation refers to the behavior excavated, extracted to petroleum in the place for having petroleum storage.In exploitation petroleum
In the process, oil gas flows into shaft bottom from reservoir, and the driving method of well head is risen to from shaft bottom.Oil exploitation needs to use petroleum and opens
Equipment is adopted, Petroleum screen tube is a kind of spare and accessory parts of common oil exploration equipment.The main function of Petroleum screen tube is exactly sand control,
The grade of steel and type difference of screen casing used by different (lithology the is different) Petroleum screen tubes of geological environment locating for oil well.In petroleum drilling
It adopts in operation, screen casing is a kind of important equipment, frequently with earlier complete well or oil extraction sand prevention.
Bridge-type screen casing is a kind of common oil exploitation sand control screen assembly, and bridge-type screen casing common at present only has single layer
Filtering surface, and sieve pore form is single, formula multilayer, multistage socket installation cannot be combined according to job requirement, it is inconvenient that structure is complicated
Disassembling, assembling and replacing is not able to satisfy the job requirement in the work of oil exploitation sand control to screen casing, we provide a kind of bridge-type screen casing thus.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of bridge-type screen casings, have multistage sieving, easy disassembly replacement
The advantages that, it solves existing bridge-type screen casing and only has single layer filtering surface, and sieve pore form is single, group cannot be carried out according to job requirement
Box-like multilayer, multistage socket installation, structure is complicated inconvenient disassembling, assembling and replacing are not able to satisfy in the work of oil exploitation sand control to screen casing
Job requirement problem.
(2) technical solution
To realize that above-mentioned bridge-type screen casing only has single layer filtering surface, and sieve pore form is single, cannot carry out group according to job requirement
Box-like multilayer, multistage socket installation, the purpose of structure is complicated inconvenient disassembling, assembling and replacing, the invention provides the following technical scheme:
A kind of bridge-type screen casing, including upper connecting barrel seat and lower connecting barrel seat, the lower horizontal of the upper connecting barrel seat, which is placed with down, to be connect
The entirety of cylinder base, upper connecting barrel seat is made of the upper limit pressing plate that the feeding cylinder on top is connected with feeding cylinder lower end surface, lower connecting barrel seat
Entirety be made of the lower limit pressing plate that the discharge barrel of lower part is connected with discharge barrel upper surface, between upper connecting barrel seat and lower connecting barrel seat
It is folded with cylinder screen casing group, the surface of cylinder screen casing group offers sand control sieve pore, also longitudinal between upper connecting barrel seat and lower connecting barrel seat
It is connected with Limit screw part；
The entirety of upper limit pressing plate and lower limit pressing plate is circular slab, and the lower surface of upper limit pressing plate and lower limit pressure
The corresponding position of the upper surface of plate offers clamping annular groove, and the quantity for being clamped annular groove is no less than two groups, and is in concentric loop
Shape laying opens up, and the outer ring edge of upper limit pressing plate and lower limit pressing plate is also provided with perforative limit spliced eye；
Cylinder screen casing group includes single screen casing that quantity is no less than two, and each not phase of the cross-sectional diameter of each single screen casing
Together, to be arranged formula installation between single screen casing, hole mesh size, the shape for the sand control sieve pore that single screen casing outer surface opens up are different；
The entirety of Limit screw part includes a connection vertical pole, and the upper and lower ends portion for connecting vertical pole is each passed through upper limit pressing plate
With the limit spliced eye of lower limit pressing plate corresponding position, and Anti-releasing nut is screwed with by helicitic texture, connects the upper of vertical pole
Transverse weld has position limiting convex ring outside shaft on the inside of lower both ends.
Preferably, shape, the size of the upper connecting barrel seat and lower connecting barrel seat are all the same, towards on the contrary.
Preferably, the outer end opening edge of the feeding cylinder and discharge barrel, which offers, is screwed on screw thread or is equipped with connection method
It is blue.
Preferably, the quantity of the limit spliced eye is no less than four groups, and uniformly distributed in upper limit pressing plate and lower limit
The outer of pressing plate.
Preferably, the width of rebate of the clamping annular groove and the thickness of the plugging position of the upper and lower ends of single screen casing are mutually fitted
Match, and the distance between two neighboring clamping annular groove is 5-15cm；
The slot bottom of clamping annular groove is lined with PVC sealing bed course.
Preferably, the diameter of single screen casing is adapted with the diameter of clamping annular groove, and single screen casing is inserted in the upper limit respectively
Inside position pressing plate and the corresponding clamping annular groove of lower limit pressing plate.
Preferably, the shape of the sand control sieve pore is trapezoidal, oval, triangle or rectangle.
Preferably, the distance between described position limiting convex ring is identical as the longitudinal length of cylinder screen casing group.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of bridge-type screen casing, have it is following the utility model has the advantages that
1, bridge-type screen casing, the form installed using combined type, is convenient for dismounting, and upper and lower connect cylinder seat and limit
Screw rod part matches, so that the fixation of cylinder screen casing group is more firm, while facilitating the limit of progress bushing type, multilayer screen casing solid
It is fixed；
2, the form of multilayer screen casing installation can effectively be carried out the processing work of oil body sand control, and be set using clamping annular groove card
Multistage, multilayer screen casing form, so that the replacement and dismounting enhanced convenience of screen casing part, the requirement that can be handled according to oil body sand control
Formula installation is combined to the screen casing part of different sieve pore hole mesh sizes, different sieve pore shapes, improves the processing work of oil body sand control
Efficiency.
Detailed description of the invention
Fig. 1 is a kind of positive structure diagram of bridge-type screen casing of the present invention；
Fig. 2 is the schematic perspective view of lower connecting barrel seat of the invention；
Fig. 3 is the schematic top plan view of lower connecting barrel seat of the invention；
Fig. 4 is the mounting structure schematic diagram of Limit screw part of the invention.
It is indicated in figure: 1- upper connecting barrel seat, 11- feeding cylinder, 12- upper limit pressing plate；
2- lower connecting barrel seat, 21- discharge barrel, 22- lower limit pressing plate；
3- cylinder screen casing group, the mono- screen casing of 31-；
4- sand control sieve pore；
5- Limit screw part, 51- connection vertical pole, 52- Anti-releasing nut, 53- position limiting convex ring；
6- is clamped annular groove, and 7- limits spliced eye.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of bridge-type screen casing, including upper connecting barrel seat 1, feeding cylinder 11, upper limit pressing plate 12, lower connecting barrel seat 2, discharge barrel 21,
Lower limit pressing plate 22, cylinder screen casing group 3, single screen casing 31, sand control sieve pore 4, Limit screw part 5, connection vertical pole 51, Anti-releasing nut
52, position limiting convex ring 53, clamping annular groove 6 and limit spliced eye 7, the lower horizontal of the upper connecting barrel seat 1 are placed with lower connecting barrel seat 2,
The entirety of upper connecting barrel seat 1 is made of the upper limit pressing plate 12 that the feeding cylinder 11 on top is connected with 11 lower end surface of feeding cylinder, lower connecting barrel
The entirety of seat 2 is made of the lower limit pressing plate 22 that the discharge barrel 21 of lower part is connected with 21 upper surface of discharge barrel, and upper connecting barrel seat 1 is under
It is folded with cylinder screen casing group 3 between connect cylinder seat 2, works for oil body sand control, the surface of cylinder screen casing group 3 offers sand control sieve pore
4, Limit screw part 5 is also longitudinally connected between upper connecting barrel seat 1 and lower connecting barrel seat 2, for upper limit pressing plate 12 and lower limit
Pressing plate 22 fixes；
The entirety of upper limit pressing plate 12 and lower limit pressing plate 22 is circular slab, and the lower surface of upper limit pressing plate 12 is under
The corresponding position for limiting the upper surface of pressing plate 22 offers clamping annular groove 6, and the quantity of clamping annular groove 6 is no less than two groups, and
It is opened up in the laying of concentric circles annular, the cylinder screen casing group 3 of bushing type can be cooperated to be plugged and fixed, upper limit pressing plate 12 and lower limit
The outer ring edge of position pressing plate 22 is also provided with perforative limit spliced eye 7；
Cylinder screen casing group 3 includes single screen casing 31 that quantity is no less than two, and the cross-sectional diameter of each single screen casing 31 is each
Not identical, to be arranged formula installation between single screen casing 31, hole mesh size, the shape for the sand control sieve pore 4 that single 31 outer surface of screen casing opens up are each
It is not identical, combination multiplicity, convenient for being combined according to job requirement；The form of multilayer screen casing installation, can effectively carry out oil body
Sand control handles work, and blocks the form for setting multilayer screen casing using clamping annular groove 6, so that the replacement and dismounting of screen casing part are more square
Just, formula can be combined according to screen casing part of the requirement that oil body sand control is handled to different sieve pore hole mesh sizes, different sieve pore shapes
Installation improves the efficiency of oil body sand control processing work.
The entirety of Limit screw part 5 includes a connection vertical pole 51, and the upper and lower ends portion of connection vertical pole 51 is each passed through the upper limit
The limit spliced eye 7 of position pressing plate 12 and 22 corresponding position of lower limit pressing plate, and Anti-releasing nut 52 is screwed with by helicitic texture,
Connecting on the inside of the upper and lower ends of vertical pole 51 outside shaft transverse weld has a position limiting convex ring 53, when work, position limiting convex ring 53 and anti-
The de- cooperation of nut 52 fixes connect cylinder seat.
The shape of upper connecting barrel seat 1 and lower connecting barrel seat 2, size are all the same, towards on the contrary.
The outer end opening edge of feeding cylinder 11 and discharge barrel 21, which offers, to be screwed on screw thread or is equipped with connecting flange, can be with
The components such as external oil pipe carry out installation connection, and can the be open lid that is also screwed on of 21 bottom of discharge barrel carries out envelope and sets, operation multiplicity.
The quantity of limit spliced eye 7 is no less than four groups, and uniformly distributed in upper limit pressing plate 12 and lower limit pressing plate 22
Outer.
The width of rebate for being clamped annular groove 6 is adapted with the thickness of the upper and lower ends plugging position of single screen casing 31, so that connection
It is more firm, and the distance between two neighboring clamping annular groove 6 is 5-15cm, improves sand control efficiency；
The slot bottom of clamping annular groove 6 is lined with PVC sealing bed course, so that grafting limit installation is more firm.
The diameter of single screen casing 31 is adapted with the diameter of clamping annular groove 6, and single screen casing 31 is inserted in upper limit pressing plate respectively
12 and the corresponding clamping annular groove 6 of lower limit pressing plate 22 inside, plug-in type combination installation, easy disassembly.Using combined type installation
Form is convenient for dismounting, and upper and lower connect cylinder seat is matched with Limit screw part 5, so that the fixation to cylinder screen casing group 3
It is more firm, while the limit for carrying out bushing type, multilayer screen casing being facilitated to fix.
The shape of sand control sieve pore 4 is trapezoidal, oval, triangle or rectangle, and the filter general labourer for meeting different material is required.
The distance between position limiting convex ring 53 is identical as the longitudinal length of cylinder screen casing group 3, convenient for carrying out to cylinder screen casing group 3
Limit sandwiched is fixed.
When assembly working, suitable cylinder screen casing group 3 is chosen first, i.e. single screen casing 31 of suitable size is mutually nested
It connects, then by the both ends of cylinder screen casing group 3, grafting enters in lower surface and the corresponding clamping annular groove 6 of lower limit pressing plate 22 respectively, so
The limit that the upper and lower ends portion for connecting vertical pole 51 is each passed through 22 corresponding position of upper limit pressing plate 12 and lower limit pressing plate is inserted afterwards
It connects in hole 7, then the threaded shank portion outer cover that 51 both ends of vertical pole are exposed will be connected and connect Anti-releasing nut 52 and be tightened, it can be complete
At the assembling of structure, when needing to replace cylinder screen casing group 3, Anti-releasing nut 52 is subjected to rotation first and is taken off, then by cylinder
Screen casing group 3 is removed out of clamping annular groove 6, and more renews screen casing, is finally re-assemblied again, swift to operate, structure is simple, just
In the combination for adjusting screen casing according to job requirement, the efficiency of sand-preventing petroleum work is further increased.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of bridge-type screen casing, including upper connecting barrel seat (1) and lower connecting barrel seat (2), it is characterised in that: the upper connecting barrel seat (1)
Lower horizontal is placed with lower connecting barrel seat (2), the whole feeding cylinder (11) and feeding cylinder (11) lower end by top of upper connecting barrel seat (1)
Upper limit pressing plate (12) composition of face connection, the entirety of lower connecting barrel seat (2) is by the discharge barrel (21) and discharge barrel (21) of lower part
Lower limit pressing plate (22) composition of end face connection, is folded with cylinder screen casing group (3) between upper connecting barrel seat (1) and lower connecting barrel seat (2),
The surface of cylinder screen casing group (3) offers sand control sieve pore (4), is also longitudinally connected between upper connecting barrel seat (1) and lower connecting barrel seat (2)
Limit screw part (5)；
The entirety of upper limit pressing plate (12) and lower limit pressing plate (22) is circular slab, and the lower surface of upper limit pressing plate (12) and
The corresponding position of the upper surface of lower limit pressing plate (22) offers clamping annular groove (6), and the quantity of clamping annular groove (6) is no less than two
Group, and opened up in the laying of concentric circles annular, the outer ring edge of upper limit pressing plate (12) and lower limit pressing plate (22) is also provided with
Perforative limit spliced eye (7)；
Cylinder screen casing group (3) includes single screen casing (31) that quantity is no less than two, and the cross-sectional diameter of each single screen casing (31)
It is different, formula installation, the hole mesh ruler for the sand control sieve pore (4) that single screen casing (31) outer surface opens up are arranged between single screen casing (31)
It is very little, shape is different；
The entirety of Limit screw part (5) includes connection vertical pole (51), and the upper and lower ends portion of connection vertical pole (51) is each passed through
The limit spliced eye (7) of pressing plate (12) and lower limit pressing plate (22) corresponding position is limited, and is screwed with by helicitic texture anti-
De- nut (52), connecting shaft outside transverse weld on the inside of the upper and lower ends of vertical pole (51) has position limiting convex ring (53)；
Shape, the size of the upper connecting barrel seat (1) and lower connecting barrel seat (2) are all the same, towards the opposite feeding cylinder (11) and go out
The outer end opening edge of barrel (21), which offers, to be screwed on screw thread or is equipped with connecting flange;
The diameter of the list screen casing (31) is adapted with the diameter of clamping annular groove (6), and single screen casing (31) is inserted in the upper limit respectively
Position pressing plate (12) and the corresponding clamping annular groove (6) of lower limit pressing plate (22) are internal.
2. a kind of bridge-type screen casing according to claim 1, it is characterised in that: the quantity of limit spliced eye (7) is many
In four groups, and the uniformly distributed outer in upper limit pressing plate (12) and lower limit pressing plate (22).
3. a kind of bridge-type screen casing according to claim 1, it is characterised in that: it is described clamping annular groove (6) width of rebate with
The thickness of the upper and lower ends plugging position of single screen casing (31) is adapted, and the distance between two neighboring clamping annular groove (6) is 5-
15cm；The slot bottom of clamping annular groove (6) is lined with PVC sealing bed course.
4. a kind of bridge-type screen casing according to claim 1, it is characterised in that: the shape of the sand control sieve pore (4) be it is trapezoidal,
Ellipse, triangle or rectangle.
5. a kind of bridge-type screen casing according to claim 1, it is characterised in that: the distance between described position limiting convex ring (53) with
The longitudinal length of cylinder screen casing group (3) is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365172.3A CN109505567B (en) | 2018-11-16 | 2018-11-16 | A kind of bridge-type screen casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365172.3A CN109505567B (en) | 2018-11-16 | 2018-11-16 | A kind of bridge-type screen casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109505567A CN109505567A (en) | 2019-03-22 |
| CN109505567B true CN109505567B (en) | 2019-08-23 |
Family
ID=65748672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811365172.3A Active CN109505567B (en) | 2018-11-16 | 2018-11-16 | A kind of bridge-type screen casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109505567B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5232048A (en) * | 1992-01-31 | 1993-08-03 | Conoco Inc. | Well screen with increased outer surface area |
| US7866383B2 (en) * | 2008-08-29 | 2011-01-11 | Halliburton Energy Services, Inc. | Sand control screen assembly and method for use of same |
| CN103452534A (en) * | 2013-09-13 | 2013-12-18 | 天津金顺科技发展有限公司 | Composite sand-preventing sieve pipe |
| WO2015122915A1 (en) * | 2014-02-14 | 2015-08-20 | Halliburton Energy Services, Inc. | Flow distribution assemblies for preventing sand screen erosion |
| CN108798609B (en) * | 2017-04-28 | 2024-02-20 | 中石化石油工程技术服务有限公司 | Sand-proof screen pipe with self-locking switch |
| CN108643870B (en) * | 2018-05-25 | 2019-03-12 | 大庆市天德忠石油科技有限公司 | A kind of Multi-element oil well screen |
-
2018
- 2018-11-16 CN CN201811365172.3A patent/CN109505567B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109505567A (en) | 2019-03-22 |
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