CN112343561A - Gravel filling sand control completion tool - Google Patents
Gravel filling sand control completion tool Download PDFInfo
- Publication number
- CN112343561A CN112343561A CN201910729477.6A CN201910729477A CN112343561A CN 112343561 A CN112343561 A CN 112343561A CN 201910729477 A CN201910729477 A CN 201910729477A CN 112343561 A CN112343561 A CN 112343561A
- Authority
- CN
- China
- Prior art keywords
- pipe
- filling
- sliding sleeve
- gravel
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/04—Gravelling of wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
Abstract
The invention discloses a gravel-filling sand-prevention well completion tool which comprises an insertion pipe, an outer pipe, a sliding sleeve and a spring, wherein one end of the insertion pipe is opened, the other end of the insertion pipe is sealed, the open end of the insertion pipe is connected with a sand-filling pipe column, the sliding sleeve is arranged in the outer pipe in a sliding manner, a first boss is arranged on the outer wall of the sliding sleeve, a second boss is arranged on the inner wall of the outer pipe, an accommodating cavity is formed among the outer pipe, the sliding sleeve, the first boss and the second boss, the spring is arranged in the accommodating cavity, the insertion pipe extends into the outer pipe and abuts against the sliding sleeve, and a first filling through hole and a second filling through hole are; the outer wall of the sliding sleeve plugs the second filling through hole, and the gravel filling sand prevention completion tool is in a closed state; the inserting pipe extrudes the sliding sleeve to slide, the second filling through hole is communicated with the first filling through hole, and the gravel filling sand control completion tool is in an open state. The gravel packing tool solves the technical problems of complex operation, poor operability and poor use experience of the existing gravel packing tool.
Description
Technical Field
The invention relates to the technical field of sand prevention and completion of oil exploitation, in particular to a gravel packing sand prevention and completion tool.
Background
At the present stage, in the process of sand prevention by adopting the traditional mechanical sand prevention pipe, the fluid in the reservoir can carry sand to erode the sieve pipe continuously, and the filter screen on the sieve pipe is easy to erode and damage by the sand along with the prolonging of time, so that the failure of sand prevention completion is caused. The gravel packing sand control completion technology has the advantages of remarkable sand control effect, prolonged service life of a sieve tube and the like, but in the gravel packing process of the traditional gravel packing tool, the gravel packing tool is complex to operate, complex in control process and poor in operability and use experience.
Therefore, the inventor provides a gravel packing sand control completion tool by virtue of experience and practice of related industries for many years so as to overcome the defects in the prior art.
Disclosure of Invention
The invention aims to provide a gravel packing sand-prevention well completion tool, wherein an insertion pipe is inserted into an outer pipe, and the opening and closing state of a gravel packing hole in the outer pipe can be controlled by applying pressure on the insertion pipe, so that the gravel packing process is controlled, the operation is simple and convenient, the working strength is reduced, and the smooth operation of the gravel packing sand-prevention well completion can be ensured.
The purpose of the invention can be realized by adopting the following technical scheme:
the invention provides a gravel-packed sand-prevention well completion tool which comprises a cannula, an outer pipe, a sliding sleeve and a spring, one end of the insertion pipe is opened, the other end of the insertion pipe is sealed, the opening end of the insertion pipe is connected with the sand filling pipe column, one end of the outer pipe is connected with one end of the sieve tube, the other end of the sieve tube is connected with the oil pipe, the sliding sleeve is arranged in the outer pipe in a sliding manner along the axial direction of the outer pipe, a first boss is arranged on the outer wall of the sliding sleeve and close to one end of the sieve tube, a second boss is arranged on the inner wall of the outer tube and far away from one end of the sieve tube, an accommodating chamber is formed among the outer pipe, the sliding sleeve, the first boss and the second boss, the spring is arranged in the accommodating chamber, the insertion pipe sequentially penetrates through the oil pipe and the sieve pipe to extend into the outer pipe and abut against the sliding sleeve, a first filling through hole and a second filling through hole are correspondingly formed in the insertion tube and the outer tube;
the second filling through hole is positioned at one end, close to the sieve tube, of the outer pipe, and the outer wall of the sliding sleeve blocks the second filling through hole so that the gravel filling sand control completion tool is in a closed state;
the inserting pipe extrudes the sliding sleeve to slide towards one end far away from the sieve pipe, the second filling through hole is communicated with the first filling through hole, and the first boss compresses the spring so that the gravel packing sand control completion tool is in an open state.
In a preferred embodiment of the present invention, an annular third boss is fixedly disposed on an inner wall of the sliding sleeve, which is close to one end of the open end of the insertion tube, along a circumferential direction of the sliding sleeve, and the sealed end of the insertion tube extends into the sliding sleeve and abuts against an end of the third boss, which is close to one end of the open end of the insertion tube.
In a preferred embodiment of the present invention, the number of the first filling through-holes and the number of the second filling through-holes are both plural, each of the first filling through-holes is continuously distributed along the circumferential direction of the insertion tube at intervals, and each of the second filling through-holes is continuously distributed along the circumferential direction of the outer tube at intervals.
In a preferred embodiment of the present invention, the second boss is a limiting sleeve separately disposed from the outer tube, the limiting sleeve is disposed in the outer tube along a circumferential direction of the outer tube, an outer wall of the limiting sleeve is fixedly connected to an inner wall of the outer tube, and the inner wall of the limiting sleeve is attached to an outer wall of the sliding sleeve.
In a preferred embodiment of the present invention, the first boss is disposed along a circumferential direction of the sliding sleeve, and an outer wall of the first boss is attached to an inner wall of the outer tube to close the second filling through hole.
In a preferred embodiment of the present invention, the spring is sleeved outside the sliding sleeve.
In a preferred embodiment of the present invention, the outer tube is provided with a plurality of pressure relief through holes, and each of the pressure relief through holes is communicated with the accommodating chamber.
In a preferred embodiment of the present invention, each of the pressure relief through holes is continuously spaced along the circumferential direction of the outer tube.
In a preferred embodiment of the present invention, a joint is fixedly disposed at an open end of the insertion pipe, and the insertion pipe is connected to a terminal end of the sand-packed string through the joint.
In a preferred embodiment of the invention, the end of the outer pipe close to the open end of the insertion pipe is connected with the sieve pipe, and the end of the outer pipe far from the open end of the insertion pipe is fixedly connected with the plug.
From the above, the gravel packing sand control completion tool of the invention has the characteristics and advantages that: a sliding sleeve capable of sliding is arranged in the outer pipe, a first boss and a second boss are correspondingly arranged on the outer wall of the sliding sleeve and the inner wall of the outer pipe, an accommodating cavity is formed among the outer pipe, the sliding sleeve, the first boss and the second boss, a spring is arranged in the accommodating cavity, a first filling through hole and a second filling through hole are correspondingly formed in the inserting pipe and the outer pipe, the second filling through hole is plugged by the outer wall of the sliding sleeve, when gravel filling is needed, a sand filling pipe column connected with the inserting pipe applies pressure to the inserting pipe and drives the sliding sleeve to synchronously slide, so that the second filling through hole is communicated with the first filling through hole, the purpose of opening the gravel filling sand control completion tool is achieved, and sand-carrying liquid and gravel conveyed in the sand filling pipe column are discharged outwards through the second filling through hole and the first filling through hole in sequence; after the filling sand control completion work is finished, under the elastic force action of the spring, the inserting pipe is restored to the original position to plug the second filling through hole in the sliding sleeve again, and the gravel filling sand control completion tool is closed. Through the size of control to intubate applied pressure to the control intubate can control gravel packing sand control well completion instrument's switching state to the compression state of spring, controls convenience, swift, improves staff's the experience of controlling greatly, and the material resources of using manpower sparingly can guarantee going on smoothly of packing sand control well completion work when reducing working strength.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1: the invention is a structural schematic diagram of the gravel packing sand control completion tool.
FIG. 2: the gravel pack sand control completion tool of the invention is shown in a schematic structural view in a gravel pack state.
FIG. 3: the invention provides a working principle diagram of a gravel packing sand control completion tool.
Reference numerals in the present invention: 1. inserting a tube; 101. a first filled through hole; 102. a joint; 2. an outer tube; 201. the second filling through hole; 202. pressure relief through holes; 3. a sliding sleeve; 301. a first boss; 302. a third boss; 4. a second boss; 5. a spring; 6. an accommodating chamber; 7. plugging with a thread; 8. filling a sand pipe column; 9. a screen pipe; 10. and (4) an oil pipe.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present invention provides a gravel packing sand control completion tool, which comprises a cannula 1, an outer tube 2, a sliding sleeve 3 and a spring 5, wherein the cannula 1, the outer tube 2 and the sliding sleeve 3 are all cylindrical structures. One end opening, the other end of intubate 1 seal, the open end of intubate 1 and the end-to-end connection of sand pack tubular column 8, and the open end of intubate 1 and the inside intercommunication of sand pack tubular column 8. One end of the outer pipe 2 is connected with one end of a sieve pipe 9, the other end of the sieve pipe 9 is connected with one end of an oil pipe 10, and the other end of the oil pipe 10 is positioned at a wellhead. The sliding sleeve 3 is arranged in the outer pipe 2 in a sliding way along the axial direction of the outer pipe 2, one end of the outer wall of the sliding sleeve 3, which is close to the sieve pipe 9, is fixedly provided with a circular first boss 301 along the circumferential direction of the sliding sleeve 3, one end of the inner wall of the outer pipe 2, which is far away from the sieve pipe 9, is fixedly provided with a circular second boss 4 along the circumferential direction of the outer pipe 2, the first boss 301 is positioned at one end of the second boss 4, which is close to the sieve pipe 9, the inner wall of the, the annular accommodating chamber 6 is formed between the end part of one end, far away from the sieve tube 9, of the first boss 301 and the end part of one end, close to the sieve tube 9, of the second boss 4, the spring 5 is arranged in the accommodating chamber 6, the insertion tube 1 sequentially penetrates through the oil tube 10 and the sieve tube 9 to stretch into the outer tube 2 and abut against the sliding sleeve 3, the insertion tube 1 is provided with a first filling through hole 101, and the outer tube 2 is provided with a second filling through hole 201 opposite to the first filling through hole 101. As shown in fig. 1, the second filling through hole 201 is located at one end of the outer pipe 2 close to the screen pipe 9, the outer wall of the sliding sleeve 3 close to the left end is attached to the inner wall of the outer pipe 2, and the second filling through hole 201 is plugged, at this time, the gravel filling sand prevention completion tool is in a closed state; as shown in fig. 2, the sand-filling pipe column 8 drives the insertion pipe 1 to move towards the direction away from the sieve pipe 9, so that the insertion pipe 1 extrudes the sliding sleeve 3 to slide towards the direction away from the sieve pipe 9, the second filling through hole 201 is communicated with the first filling through hole 101, the spring 5 is compressed between the first boss 301 and the second boss 4, and at this time, the gravel-filling sand-control completion tool is in an open state.
Further, as shown in fig. 1, a plug 7 is fixedly connected to the end of the outer pipe 2 away from the screen pipe 9.
Specifically, the outer tube 2 and the plug 7 may be connected by, but not limited to, a screw thread.
Specifically, as shown in fig. 1, a circular ring-shaped third boss 302 is arranged on the inner wall of the sliding sleeve 3 near one end of the sieve tube 9, the third boss 302 is integrally connected with the sliding sleeve 3 along the circumferential direction of the sliding sleeve 3, the sealing end of the insertion tube 1 extends into the sliding sleeve 3 and abuts against the end of the third boss 302 near one end of the sieve tube 9, and the insertion tube 1 drives the sliding sleeve 3 to slide along the axial direction of the outer tube 2 and far away from one end of the sieve tube 9 by squeezing the third boss 302.
Further, as shown in fig. 1 and 2, the number of the first filling through holes 101 and the number of the second filling through holes 201 are both plural, each first filling through hole 101 is continuously distributed along the circumferential direction of the insert tube 1 at intervals, each second filling through hole 201 is continuously distributed along the circumferential direction of the outer tube 2 at intervals, and the opening position of each first filling through hole 101 is opposite to the opening position of the corresponding second filling through hole 201. The gravel packing requirements are met through the plurality of first packing through holes 101 and the plurality of second packing through holes 201, a sufficient gravel amount can be provided, and smooth completion of the sand control completion operation is guaranteed.
Specifically, as shown in fig. 1, the second boss 4 is a stop collar that is separated from the outer tube 2, the stop collar is of a cylindrical structure, the stop collar is disposed in the outer tube 2 along the circumferential direction of the outer tube 2, the outer wall of the stop collar is fixedly connected with the inner wall of the outer tube 2, and the inner wall of the stop collar is attached to the outer wall of the sliding sleeve 3.
The connection mode between the limiting sleeve and the outer tube 2 can be, but is not limited to, welding.
Specifically, as shown in fig. 1, the spring 5 is sleeved on the outer side of the sliding sleeve 3.
Further, as shown in fig. 1, the outer tube 2 is provided with a plurality of pressure relief through holes 202, each pressure relief through hole 202 is communicated with the accommodating chamber 6, and each pressure relief through hole 202 is continuously distributed at intervals along the circumferential direction of the outer tube 2. When the sliding sleeve 3 slides away from the screen 9, as shown by arrows in fig. 2, the gas in the housing chamber 6 can be rapidly discharged through the pressure release through holes 202, thereby compressing the spring 5.
As shown in fig. 1, a joint 102 is fixedly arranged at the open end of the insertion pipe 1, and the insertion pipe 1 is connected with the end of the sand pack string 8 through the joint 102.
Specifically, the joint 102 is a cylindrical structure integrally formed with the insertion pipe 1, and the joint 102 and the sand-packed string 8 can be connected by, but not limited to, a screw thread.
The sand-filling pipe column 8 of the invention is a pipe column used for conveying sand-carrying fluid and gravel from an oil well to the outer pipe 2, and comprises a sucker rod, a flow blocking tool, a centralizer and the like.
As shown in fig. 1 to 3, the gravel packing sand control completion tool of the present invention operates on the following principle: when the insertion pipe 1 does not extrude the sliding sleeve 3, under the action of the elastic force of the spring 5, the positions of the first filling through hole 101 and the second filling through hole 201 are staggered, the outer wall of the sliding sleeve 3 blocks the second filling through hole 201, and at the moment, the gravel packing sand control completion tool is in a closed state and does not carry out gravel packing to the outside; when the sand filling pipe column 8 drives the insertion pipe 1 to extrude the sliding sleeve 3, the sliding sleeve 3 slides towards the direction far away from the sieve tube 9 under the pressure action of the insertion pipe 1, the insertion pipe 1 slides to the position where the second filling through hole 201 on the outer pipe 2 is communicated with the first filling through hole 101 on the insertion pipe 1, the spring 5 is in a compressed state, at the moment, the gravel filling sand control completion tool is in an open state, the sand carrying liquid and gravel enter the insertion pipe 1 through the sand filling pipe column 8, and are discharged outwards through the first filling through hole 101 and the second filling through hole 201 in sequence as shown by arrows in figure 2, so that the annular space outside the sieve tube is filled; after the completion of the sand filling and preventing well completion work, the pressure of the sand filling pipe column 8 is removed, the inserting pipe 1 is restored to the original position under the action of the elastic force of the spring 5, the second filling through hole 201 in the outer pipe 2 is plugged again, and the gravel filling and preventing sand completion tool is closed.
The gravel packing sand control completion tool has the characteristics and advantages that:
in the gravel packing sand control completion tool, when gravel packing is needed, the inserting pipe 1 extrudes the sliding sleeve 3 to slide in the outer pipe 2, so that the second packing through hole 201 is communicated with the first packing through hole 101, the aim of opening the gravel packing sand control completion tool is fulfilled, and sand carrying liquid and gravel can be discharged outwards through the second packing through hole 201 and the first packing through hole 101 in sequence; after the filling sand control well completion work is completed, under the elastic force action of the spring 5, the inserting pipe 1 is restored to the original position and the second filling through hole 201 is plugged again, the gravel filling sand control well completion tool is closed, the opening and closing state of the gravel filling sand control well completion tool can be controlled by controlling the pressure applied to the inserting pipe 1, the operation and the control are convenient and rapid, the operation and the control experience of workers are greatly improved, manpower and material resources are saved, and the smooth operation of the filling sand control well completion work can be guaranteed while the working strength is reduced.
Secondly, the gravel packing sand control completion tool is provided with a pressure relief through hole 202 communicated with the accommodating chamber 6 on the outer pipe 2, the gas in the accommodating chamber 6 can be rapidly discharged through the pressure relief through hole 202, and when the sliding sleeve 3 slides towards one end far away from the sieve tube 9, the spring 5 can be ensured to be smoothly compressed.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention.
Claims (10)
1. The gravel filling sand control well completion tool is characterized by comprising an insertion pipe (1), an outer pipe (2), a sliding sleeve (3) and a spring (5), wherein one end of the insertion pipe (1) is opened, the other end of the insertion pipe is sealed, the open end of the insertion pipe (1) is connected with a sand filling pipe column (8), one end of the outer pipe (2) is connected with one end of a sieve pipe (9), the other end of the sieve pipe (9) is connected with an oil pipe (10), the sliding sleeve (3) is arranged in the outer pipe (2) in a sliding manner along the axial direction of the outer pipe (2), a first boss (301) is arranged at one end, close to the sieve pipe (9), of the outer wall of the sliding sleeve (3), a second boss (4) is arranged at one end, far away from the sieve pipe (9), of the inner wall of the outer pipe (2), and an accommodating chamber (6) is formed between the outer pipe (2), the sliding sleeve (3), the first boss, the spring (5) is arranged in the accommodating chamber (6), the insertion pipe (1) sequentially penetrates through the oil pipe (10) and the sieve pipe (9) to extend into the outer pipe (2) and abut against the sliding sleeve (3), and a first filling through hole (101) and a second filling through hole (201) are correspondingly formed in the insertion pipe (1) and the outer pipe (2);
the second filling through hole (201) is positioned at one end, close to the sieve tube (9), of the outer tube (2), and the outer wall of the sliding sleeve (3) blocks the second filling through hole (201) so that the gravel filling sand control completion tool is in a closed state;
the inserting pipe (1) extrudes the sliding sleeve (3) to slide towards one end far away from the sieve pipe (9), the second filling through hole (201) is communicated with the first filling through hole (101), and the first boss (301) compresses the spring (5) so that the gravel packing sand control completion tool is in an open state.
2. The gravel-packing sand-control completion tool as claimed in claim 1, wherein an annular third boss (302) is fixedly arranged on the inner wall of the sliding sleeve (3) near one end of the screen pipe (9) along the circumferential direction of the sliding sleeve (3), and the closed end of the insertion pipe (1) extends into the sliding sleeve (3) and abuts against the end part of the third boss (302) near one end of the screen pipe (9).
3. The gravel packing sand control completion tool of claim 1, wherein the number of the first packing apertures (101) and the second packing apertures (201) is plural, each of the first packing apertures (101) is continuously spaced along the circumference of the insert pipe (1), and each of the second packing apertures (201) is continuously spaced along the circumference of the outer pipe (2).
4. The gravel-packing sand-control completion tool according to claim 1, wherein the second boss (4) is a limiting sleeve which is arranged separately from the outer pipe (2), the limiting sleeve is arranged in the outer pipe (2) along the circumferential direction of the outer pipe (2), the outer wall of the limiting sleeve is fixedly connected with the inner wall of the outer pipe (2), and the inner wall of the limiting sleeve is attached to the outer wall of the sliding sleeve (3).
5. The gravel-packing sand control completion tool according to claim 1, wherein the first boss (301) is disposed along a circumferential direction of the sliding sleeve (3), and an outer wall of the first boss (301) is attached to an inner wall of the outer tube (2) to block the second packing through-hole (201).
6. The gravel-packing sand control completion tool according to claim 1, wherein the spring (5) is sleeved outside the sliding sleeve (3).
7. The gravel pack sand control completion tool according to claim 1, wherein the outer tube (2) is provided with a plurality of pressure relief through holes (202), and each pressure relief through hole (202) is communicated with the accommodating chamber (6).
8. The gravel pack sand control completion tool of claim 7, wherein each of the pressure relief perforations (202) is continuously spaced along the circumference of the outer tube (2).
9. The gravel-packing sand control completion tool according to claim 1, wherein a joint (102) is fixedly provided at an open end of the stinger (1), and the stinger (1) is connected to a distal end of the sand-packing string (8) through the joint (102).
10. The gravel-packing sand control completion tool according to claim 1, wherein a plug (7) is fixedly attached to the end of the outer tube (2) distal to the screen (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910729477.6A CN112343561A (en) | 2019-08-08 | 2019-08-08 | Gravel filling sand control completion tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910729477.6A CN112343561A (en) | 2019-08-08 | 2019-08-08 | Gravel filling sand control completion tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112343561A true CN112343561A (en) | 2021-02-09 |
Family
ID=74366746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910729477.6A Pending CN112343561A (en) | 2019-08-08 | 2019-08-08 | Gravel filling sand control completion tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN112343561A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638712A (en) * | 2021-08-30 | 2021-11-12 | 阜宁县宏达石化机械有限公司 | Reverse gravel throwing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100230098A1 (en) * | 2009-03-12 | 2010-09-16 | Halliburton Energy Services, Inc. | One Trip Gravel Pack Assembly |
| CN103266868A (en) * | 2013-05-27 | 2013-08-28 | 中国石油天然气股份有限公司 | Horizontal well subsection gravel pack tool |
| CN105134141A (en) * | 2015-08-25 | 2015-12-09 | 中国石油天然气股份有限公司 | Process pipe column |
| CN109538171A (en) * | 2018-12-14 | 2019-03-29 | 中国石油天然气股份有限公司 | Gravel pack device and gravel pack method |
| CN109538172A (en) * | 2018-12-14 | 2019-03-29 | 中国石油天然气股份有限公司 | Horizontal well long well section sand control completion tubing string and construction method |
-
2019
- 2019-08-08 CN CN201910729477.6A patent/CN112343561A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100230098A1 (en) * | 2009-03-12 | 2010-09-16 | Halliburton Energy Services, Inc. | One Trip Gravel Pack Assembly |
| CN103266868A (en) * | 2013-05-27 | 2013-08-28 | 中国石油天然气股份有限公司 | Horizontal well subsection gravel pack tool |
| CN105134141A (en) * | 2015-08-25 | 2015-12-09 | 中国石油天然气股份有限公司 | Process pipe column |
| CN109538171A (en) * | 2018-12-14 | 2019-03-29 | 中国石油天然气股份有限公司 | Gravel pack device and gravel pack method |
| CN109538172A (en) * | 2018-12-14 | 2019-03-29 | 中国石油天然气股份有限公司 | Horizontal well long well section sand control completion tubing string and construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638712A (en) * | 2021-08-30 | 2021-11-12 | 阜宁县宏达石化机械有限公司 | Reverse gravel throwing device |
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Application publication date: 20210209 |
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