CN113073963A - Filling tool for oil field operation - Google Patents
Filling tool for oil field operation Download PDFInfo
- Publication number
- CN113073963A CN113073963A CN202110634280.1A CN202110634280A CN113073963A CN 113073963 A CN113073963 A CN 113073963A CN 202110634280 A CN202110634280 A CN 202110634280A CN 113073963 A CN113073963 A CN 113073963A
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- CN
- China
- Prior art keywords
- sliding sleeve
- filling
- sand control
- sand
- oilfield operation
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- 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.)
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Classifications
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- 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
Abstract
The invention provides an oilfield operation filling tool, and relates to the technical field of oilfield operation tools. This oil field work fills instrument, include the sand control tubular column, fill sliding sleeve and inside filler, the inside fixed sliding sleeve that fills that is provided with of sand control tubular column, fill and fixedly be provided with the first packer that hangs between sliding sleeve upper end and the sand control tubular column, fill and fixedly be provided with the second between sliding sleeve lower extreme and the sand control tubular column and hang the packer, first packer and the second that hangs the packer outside and all fixedly be provided with packing sealing washer and auxiliary seal circle, it is provided with the tip sealing section of thick bamboo to fill sliding sleeve tail end fixing, it is provided with the sliding sleeve head to fill sliding sleeve upper end, the first outer wall middle part of sliding sleeve is fixed and has been. The invention provides a filling tool for oilfield operation, which can effectively block bottom layer sand by arranging a sand control tubular column, has good sand filtering effect, can be repeatedly opened and closed for multiple times, and realizes secondary or multiple filling and sand supplementing operations.
Description
Technical Field
The invention relates to the technical field of oilfield operation tools, in particular to an oilfield operation filling tool.
Background
The oil field is a specific area of crude oil production, sometimes is a general term of an oil layer accumulated in the underground of a specific area, and broadly refers to a plurality of oil areas together as an oil field.
Along with the development of socialization, the range of filling tools used for the underground operation of an oil field is wider and wider, but the existing filling tools have problems in use, when the filling tools are used for filling, when a target layer for filling is not reached, fine sand stones in an oil well can enter an inner pipe through an outer pipe opening to influence filling, and after the filling is finished by using the filling tools, internal sand-carrying liquid can be attached to the inside of a cavity for a long time and cannot be cleaned in time to influence use, the sand control operation of the oil well mainly adopts a high-pressure packing one-time filling tool which is a leading top-end product in use in the current oil well of China, but only can carry out one-time filling operation on the oil well in the use process, cannot carry out secondary or multiple times of filling, and needs to lift the tools in the repair process, has long production period and high cost, the sand control quality is poor, and the sand control validity period is short.
Disclosure of Invention
The invention provides a filling tool for oilfield operation, and solves the problems that when the existing filling tool is used, fine sand and stones in an oil well can possibly enter an inner pipe through an outer pipe opening to influence filling, and after the tool is used for filling, internal sand carrying liquid can possibly be attached to the inside of a cavity, and a high-pressure packing one-time filling tool can only perform one-time filling operation on the oil well in the using process and cannot perform secondary or multiple-time filling.
In order to achieve the purpose, the invention is realized by the following technical scheme: the oilfield operation filling tool comprises a sand control pipe column, a filling sliding sleeve and an internal filling device, wherein the sand control pipe column is internally and fixedly provided with the filling sliding sleeve, a first hanging packer is fixedly arranged between the upper end of the filling sliding sleeve and the sand control pipe column, a second hanging packer is fixedly arranged between the lower end of the filling sliding sleeve and the sand control pipe column, the outer sides of the first hanging packer and the second hanging packer are respectively and fixedly provided with a packing sealing ring and an auxiliary sealing ring, the tail end of the filling sliding sleeve is fixedly provided with an end sealing barrel, the upper end of the filling sliding sleeve is provided with a sliding sleeve head, the middle part of the outer wall of the sliding sleeve head is fixedly provided with two filling ports, the lower end of the sliding sleeve head is fixedly connected with a lower joint, the lower end of the lower joint is lengthened through a sliding sleeve connector, a, the lower end of the sliding sleeve switch is provided with a second elastic claw, and the upper end of the sliding sleeve switch is provided with a sealing blocking ring;
fill the inside filling ware that is provided with of sliding sleeve, inside filling ware lower extreme is provided with back the liquid pipe, it is provided with big seat and seals the ball to return the liquid pipe top, inside backflow circulation groove has been seted up to inside filling ware upper end, backflow circulation groove upper end is provided with first circulation hole, inside filling ware middle part is provided with the filling hole, the inside ball seat that is provided with of filling hole, the ball seat upper end is provided with little seat and seals the ball, the fixed anchoring sleeve that is provided with of inside filling ware upper end outer wall, the inside fixed two second sealing rings that are provided with of anchoring sleeve, inside filling ware is close to anchoring sleeve department and is provided with the second circulation hole.
Preferably, a plurality of perfusion grooves are fixedly arranged on the outer side of the lower end of the sand control pipe column.
Preferably, a liquid return filtering port is fixedly arranged at the lower end of the filling sliding sleeve, which is close to the filling groove.
Preferably, sliding sleeve head inner wall middle part is provided with first constant head tank, lower clutch inner wall middle part is provided with the second constant head tank, first constant head tank cooperatees with first elastic claw, the second constant head tank cooperatees with second elastic claw.
Preferably, the erosion sleeve is fixedly arranged at the upper end inside the sliding sleeve head.
Preferably, the top of the internal filler is fixedly connected with an end connecting seat.
Preferably, the outer wall of the internal filler is fixedly provided with a connecting snap ring at the lower end of the anchoring sleeve, and the connecting snap ring is fixedly buckled with the first hanging packer.
Preferably, a plurality of first sealing rings are fixedly arranged on the outer wall of the inner filler.
The working principle is as follows: when the oil field operation filling tool is used, the sand control tubular column is arranged outside the filling sliding sleeve, bottom sand can be effectively blocked, a good sand filtering effect is achieved, the internal filling device can be filled under the condition of no sand, the sand control tubular column is suspended through the suspension packer, the annular space of the oil casing pipe for separating the production pipe from the upper part can be further effectively prevented, fine sand stones in the oil well can be effectively prevented from entering the inner pipe through the outer pipe opening, the internal pipeline is prevented from being adsorbed by the fine sand stones, the end part of the sliding sleeve can be sealed by arranging the end part sealing barrel at the bottom of the filling sliding sleeve, sand stones and pollutants at the bottom of the oil field can be prevented from entering the sliding sleeve, the filling work is influenced, the upper end and the lower end of the sliding sleeve can be respectively provided with the extension pipe through the sliding sleeve connector, the distance, the inner filling device can adapt to deeper filling work, a sliding sleeve switch is arranged in the sliding sleeve, a sealing blocking ring is arranged, a filling opening on the sliding sleeve can be effectively sealed, an erosion sleeve for preventing gravel from damaging the sliding sleeve is also arranged in the sliding sleeve, a first positioning groove for limiting the positioning sliding sleeve switch is arranged in the sliding sleeve, a second positioning groove for limiting the positioning sliding sleeve switch is arranged in the lower connector, a first elastic claw and a second elastic claw are arranged on the sliding sleeve switch, the first elastic claw is matched with the first positioning groove, the second elastic claw is matched with the second positioning groove, the sliding sleeve switch is conveniently positioned, the sliding sleeve switch is opened and closed by adopting a switch tool and can be repeatedly opened and closed for multiple times, secondary or multiple times of filling and sand supplementing operation can be realized, the elastic claw of the sliding sleeve switch has self-locking capacity, and the sliding sleeve switch can be prevented from being opened by mistake when a production string is put in, inside back of sliding sleeve is inserted to inside filler, the sliding sleeve is opened, conveniently fill the operation, pull out the back when inside filler, the sliding sleeve will be closed, it is very convenient to operate, and through inside backflow circulation groove and the circulation hole of setting up of inside filler, when filling work, owing to fill into fillers such as concrete, make the inside liquid of oil well can flow back through backflow circulation groove and circulation hole, prevent that the inside liquid of oil well can't discharge and cause and fill the hindrance, it is more difficult to fill, seal up the ball through big or small seat, the convenience is inside to inside filler try to circulate and wash to the rotating rod tubular column inside.
The invention provides an oilfield operation filling tool. The method has the following beneficial effects:
1. the invention provides an oil field operation filling tool, which can effectively block bottom sand by arranging a sand prevention tubular column outside a filling sliding sleeve, has a good sand filtering effect, enables an internal filling device to be filled under the condition of no sand, and can suspend the sand prevention tubular column through a suspension packer, and can also separate a production pipe from an upper oil casing annular space, so that the internal filling device has a better using effect, can effectively prevent fine sand stones inside an oil well from entering an inner pipe through an outer pipe orifice, and avoids the internal pipeline from being adsorbed by the fine sand stones to influence the use of the internal filling device.
2. The invention provides an oil field operation filling tool, wherein an end sealing cylinder is arranged at the bottom of a filling sliding sleeve, so that the end of the sliding sleeve can be sealed, gravels and pollutants at the bottom of an oil field are prevented from entering the inside of the sliding sleeve, the filling work is influenced, the upper end and the lower end of the sliding sleeve can be provided with extension pipes through sliding sleeve connectors, the distance between the sliding sleeve and a packer can be adjusted, the length of the lower part of the sliding sleeve can be prolonged, an internal filling device can adapt to the filling work in a deeper position, and the using effect is better.
3. The invention provides an oil field operation filling tool, a sliding sleeve switch is arranged in a sliding sleeve, a sealing blocking ring is arranged, a filling opening on the sliding sleeve can be effectively sealed, an erosion sleeve for preventing gravel from damaging the sliding sleeve is also arranged in the sliding sleeve, a first positioning groove for limiting and positioning the sliding sleeve switch is arranged in the sliding sleeve, a second positioning groove for limiting and positioning the sliding sleeve switch is arranged in a lower connector, a first elastic claw and a second elastic claw are arranged on the sliding sleeve switch, the first elastic claw is matched with the first positioning groove, the second elastic claw is matched with the second positioning groove, the sliding sleeve switch is conveniently positioned, the sliding sleeve switch is opened and closed by adopting a switching tool and can be repeatedly opened and closed for multiple times, secondary or multiple times of filling and sand filling operation can be realized, the elastic claw of the sliding sleeve switch has self-locking capacity, and the sliding sleeve switch can be prevented from being opened by mistake when an internal filling device is put in, the use is very convenient.
4. The invention provides an oil field operation filling tool, wherein after an internal filling device is inserted into a sliding sleeve, the sliding sleeve is opened, so that filling operation is convenient, after the internal filling device is pulled out, the sliding sleeve is closed, so that the operation is very convenient, in addition, the internal filling device is internally provided with a backflow circulating groove and a circulating hole, the sealing is carried out through a large seat sealing ball and a small seat sealing ball, the internal circulation of the internal filling device is conveniently tested and cleaned, and the using effect is better.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;
FIG. 3 is an enlarged view taken at B of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic view of the internal structure of the filling sliding sleeve according to the present invention;
FIG. 5 is a schematic view of a trial extrusion operation according to the present invention;
FIG. 6 is a schematic diagram of a trial cycle operation of the present invention;
FIG. 7 is a schematic diagram of the reverse cycle operation of the present invention.
Wherein, 1, a sand control pipe column; 2. pouring a tank; 3. filling the sliding sleeve; 4. an internal filler; 5. a first hanging packer; 6. a second suspended packer; 7. packing a sealing ring; 8. an auxiliary seal ring; 9. a sliding sleeve connector; 10. a liquid return filter opening; 11. an end seal cartridge; 12. a filling port; 13. a liquid return pipe; 14. an end connection base; 15. a reflux circulation tank; 16. a first circulation hole; 17. a large setting ball; 18. a perfusion hole; 19. a ball seat; 20. a small seating ball; 21. a first seal ring; 22. connecting a retaining ring; 23. an anchoring sleeve; 24. a second seal ring; 25. a second circulation hole; 26. a sliding sleeve head; 27. an erosion sleeve; 28. sealing the blocking ring; 29. a first positioning groove; 30. a lower joint; 31. a second positioning groove; 32. a sliding sleeve switch; 33. a first elastic claw; 34. a second resilient finger.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-7, the embodiment of the invention provides an oilfield operation filling tool, which comprises a sand control pipe column 1, a filling sliding sleeve 3 and an internal filling device 4, wherein the sand control pipe column 1 can effectively block bottom sand to play a good sand filtering role, the sand control pipe column 1 is internally and fixedly provided with the filling sliding sleeve 3, a first hanging packer 5 is fixedly arranged between the upper end of the filling sliding sleeve 3 and the sand control pipe column 1, the first hanging packer 5 can hang the sand control pipe column 1, the annular space of an oil casing pipe for separating a production pipe from the upper part can be further separated, a second hanging packer 6 is fixedly arranged between the lower end of the filling sliding sleeve 3 and the sand control pipe column 1, the bottom of the filling sliding sleeve 3 can be hung by the second hanging packer 6, the outer sides of the first hanging packer 5 and the second hanging packer 6 are both fixedly provided with a packing seal ring 7 and an auxiliary seal ring 8, can seal the end part of the sliding sleeve, prevent sand and pollutant at the bottom of the oil field from entering the sliding sleeve, the upper end of the filling sliding sleeve 3 is provided with a sliding sleeve head 26, the middle part of the outer wall of the sliding sleeve head 26 is fixedly provided with two filling ports 12 for filling, the lower end of the sliding sleeve head 26 is fixedly connected with a lower joint 30, the lower end of the lower joint 30 is lengthened through a sliding sleeve connector 9, the inside of the sliding sleeve head 26 is provided with a sliding sleeve switch 32 in a sliding way, the sliding sleeve switch 32 is opened and closed by adopting a switch tool and can be repeatedly opened and closed for a plurality of times, so that secondary or multiple filling and sand supplementing operations can be realized, the upper end of the sliding sleeve switch 32 is provided with a first elastic claw 33, the lower end of the sliding sleeve switch 32 is provided with a second elastic claw 34, the first elastic claw 33 and the second elastic claw 34 both have self-locking capability, so as to prevent the sliding, can be used for plugging the filling port 12 and sealing the filling port 12 when the filling work is not carried out;
fill 3 inside fillers 4 that are provided with of sliding sleeve, 4 lower extremes of inside fillers are provided with back liquid pipe 13, can try to circulate or fill the during operation liquid inside the oil well and go back, liquid returns liquid pipe 13 top and is provided with big seat sealing ball 17, inside fillers 4 upper end inside has seted up backward flow circulation groove 15, can try to circulate or fill the during operation liquid inside the oil well and assist the backward flow, backward flow circulation groove 15 upper end is provided with first circulation hole 16, inside fillers 4 middle part is provided with filling hole 18, the inside ball seat 19 that is provided with of filling hole 18, ball seat 19 upper end is provided with little seat sealing ball 20, the fixed anchoring sleeve 23 that is provided with of inside fillers 4 upper end outer wall, anchoring sleeve 23 inside fixed two second sealing rings 24 that are provided with, inside fillers 4 is close to anchoring sleeve 23 department and is provided with second circulation hole 25.
The outer side of the lower end of the sand control pipe column 1 is fixedly provided with a plurality of filling grooves 2, the lower end of a filling sliding sleeve 3 is fixedly provided with a liquid return filter opening 10 close to the filling grooves 2 and used for enabling backflow liquid to enter the filling sliding sleeve 3 and blocking filling materials outside the filling sliding sleeve 3, the middle part of the inner wall of a sliding sleeve head 26 is provided with a first positioning groove 29, the middle part of the inner wall of a lower joint 30 is provided with a second positioning groove 31, the first positioning groove 29 is matched with a first elastic claw 33, the second positioning groove 31 is matched with a second elastic claw 34, the upper end inside the sliding sleeve head 26 is fixedly provided with an erosion sleeve 27 for preventing gravels from damaging the sliding sleeve, the top of an internal filling device 4 is fixedly connected with an end connecting seat 14 and used for connecting the internal filling device 4 with an external pipeline, the outer wall of the internal filling device 4 is fixedly provided with a connecting buckle 22 at, a plurality of first sealing rings 21 are fixedly arranged on the outer wall of the internal filler 4.
When the filling tool for oil field operation is used, the internal filling device 4 is inserted into the filling sliding sleeve 4, the internal filling device 4 is in a positive circulation position, then filling mortar is pressed into the internal filling device 4 by using a filling pump, the filling mortar is sprayed out from the filling hole of the internal filling device 4 and enters the inside of an oil well through the filling port 12 on the filling sliding sleeve 4, so that the inside of the oil well is filled, liquid in the oil well enters the inside of the filling sliding sleeve 4 through the liquid return filtering port 10 and then reaches the backflow circulation groove 15 and the circulation hole through the liquid return pipe 13, the large and small seat sealing balls are jacked up, so that backflow liquid can flow back, the backflow circulation groove 15 and the circulation hole are separated from the internal filling pipeline, the backflow liquid and the filling mortar can be prevented from being mixed, the filling work and the backflow of the liquid are influenced, and the test circulation of the internal filling device 4 and the inside of a rotary rod pipe column can, the use effect is better.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Oil field operation fills instrument includes sand control tubular column (1), fills sliding sleeve (3) and inside filler (4), its characterized in that: the sand control pipe column is characterized in that a filling sliding sleeve (3) is fixedly arranged inside the sand control pipe column (1), a first hanging packer (5) is fixedly arranged between the upper end of the filling sliding sleeve (3) and the sand control pipe column (1), a second hanging packer (6) is fixedly arranged between the lower end of the filling sliding sleeve (3) and the sand control pipe column (1), a packing sealing ring (7) and an auxiliary sealing ring (8) are fixedly arranged on the outer sides of the first hanging packer (5) and the second hanging packer (6), an end sealing barrel (11) is fixedly arranged at the tail end of the filling sliding sleeve (3), a sliding sleeve head (26) is arranged at the upper end of the filling sliding sleeve (3), two filling ports (12) are fixedly formed in the middle part of the outer wall of the sliding sleeve head (26), a lower joint (30) is fixedly connected at the lower end of the sliding sleeve head (26), and the lower end of, a sliding sleeve switch (32) is arranged in the sliding sleeve head (26) in a sliding manner, a first elastic claw (33) is arranged at the upper end of the sliding sleeve switch (32), a second elastic claw (34) is arranged at the lower end of the sliding sleeve switch (32), and a sealing blocking ring (28) is arranged at the upper end of the sliding sleeve switch (32);
an inner filler (4) is arranged in the filling sliding sleeve (3), a liquid return pipe (13) is arranged at the lower end of the inner filler (4), a big seat sealing ball (17) is arranged at the top of the liquid return pipe (13), a reflux circulation groove (15) is arranged inside the upper end of the internal filler (4), a first circulation hole (16) is arranged at the upper end of the backflow circulation groove (15), a filling hole (18) is arranged in the middle of the internal filler (4), a ball seat (19) is arranged in the pouring hole (18), a small seat sealing ball (20) is arranged at the upper end of the ball seat (19), an anchoring sleeve (23) is fixedly arranged on the outer wall of the upper end of the internal filler (4), two second sealing rings (24) are fixedly arranged in the anchoring sleeve (23), and a second circulation hole (25) is formed in the position, close to the anchoring sleeve (23), of the internal filler (4).
2. The oilfield operation packing tool of claim 1, wherein: the outer side of the lower end of the sand control pipe column (1) is fixedly provided with a plurality of perfusion grooves (2).
3. The oilfield operation packing tool of claim 1, wherein: and a liquid return filtering port (10) is fixedly arranged at the lower end of the filling sliding sleeve (3) close to the perfusion groove (2).
4. The oilfield operation packing tool of claim 1, wherein: the middle part of the inner wall of the sliding sleeve head (26) is provided with a first positioning groove (29), the middle part of the inner wall of the lower joint (30) is provided with a second positioning groove (31), the first positioning groove (29) is matched with the first elastic claw (33), and the second positioning groove (31) is matched with the second elastic claw (34).
5. The oilfield operation packing tool of claim 1, wherein: an erosion sleeve (27) is fixedly arranged at the upper end of the inner part of the sliding sleeve head (26).
6. The oilfield operation packing tool of claim 1, wherein: the top of the filling tool (4) is fixedly connected with an end connecting seat (14).
7. The oilfield operation packing tool of claim 1, wherein: and a connecting snap ring (22) is fixedly arranged on the outer wall of the internal filler (4) at the lower end of the anchoring sleeve (23), and the connecting snap ring (22) is fixedly buckled with the first hanging packer (5).
8. The oilfield operation packing tool of claim 1, wherein: the outer wall of the internal filler (4) is fixedly provided with a plurality of first sealing rings (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110634280.1A CN113073963A (en) | 2021-06-08 | 2021-06-08 | Filling tool for oil field operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110634280.1A CN113073963A (en) | 2021-06-08 | 2021-06-08 | Filling tool for oil field operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113073963A true CN113073963A (en) | 2021-07-06 |
Family
ID=76617097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110634280.1A Withdrawn CN113073963A (en) | 2021-06-08 | 2021-06-08 | Filling tool for oil field operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113073963A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931598A (en) * | 2021-12-16 | 2022-01-14 | 纬达石油装备有限公司 | Sand prevention filling device and using method thereof |
| CN116291335A (en) * | 2023-05-22 | 2023-06-23 | 东营环泰石油科技开发有限公司 | Filling tool for sand prevention well completion |
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| US20020060066A1 (en) * | 1999-03-26 | 2002-05-23 | Kevin Fisher | Memory gravel pack imaging apparatus and method |
| US20100314124A1 (en) * | 2009-06-16 | 2010-12-16 | Schlumberger Technology Corporation | Open-hole stimulation system |
| CN104775802A (en) * | 2015-03-26 | 2015-07-15 | 中国石油化工股份有限公司 | Separate-layer fracturing sand control string for thermal production well and sand control method thereof |
| CN208900086U (en) * | 2018-08-17 | 2019-05-24 | 东营市瑞丰石油技术发展有限责任公司 | Sand control pack sliding sleeve |
| CN208950552U (en) * | 2018-10-11 | 2019-06-07 | 中国石油化工股份有限公司 | A kind of slicing and filling sand control pipe |
| CN111042776A (en) * | 2018-10-11 | 2020-04-21 | 中国石油化工股份有限公司 | Anti-channeling layered filling sand prevention pipe column and method |
| CN212296309U (en) * | 2020-06-03 | 2021-01-05 | 东营市瑞丰石油技术发展有限责任公司 | Ball seat assembly capable of changing channels and gravel packing string |
-
2021
- 2021-06-08 CN CN202110634280.1A patent/CN113073963A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020060066A1 (en) * | 1999-03-26 | 2002-05-23 | Kevin Fisher | Memory gravel pack imaging apparatus and method |
| US20100314124A1 (en) * | 2009-06-16 | 2010-12-16 | Schlumberger Technology Corporation | Open-hole stimulation system |
| CN104775802A (en) * | 2015-03-26 | 2015-07-15 | 中国石油化工股份有限公司 | Separate-layer fracturing sand control string for thermal production well and sand control method thereof |
| CN208900086U (en) * | 2018-08-17 | 2019-05-24 | 东营市瑞丰石油技术发展有限责任公司 | Sand control pack sliding sleeve |
| CN208950552U (en) * | 2018-10-11 | 2019-06-07 | 中国石油化工股份有限公司 | A kind of slicing and filling sand control pipe |
| CN111042776A (en) * | 2018-10-11 | 2020-04-21 | 中国石油化工股份有限公司 | Anti-channeling layered filling sand prevention pipe column and method |
| CN212296309U (en) * | 2020-06-03 | 2021-01-05 | 东营市瑞丰石油技术发展有限责任公司 | Ball seat assembly capable of changing channels and gravel packing string |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931598A (en) * | 2021-12-16 | 2022-01-14 | 纬达石油装备有限公司 | Sand prevention filling device and using method thereof |
| CN116291335A (en) * | 2023-05-22 | 2023-06-23 | 东营环泰石油科技开发有限公司 | Filling tool for sand prevention well completion |
| CN116291335B (en) * | 2023-05-22 | 2023-07-21 | 东营环泰石油科技开发有限公司 | Filling tool for sand prevention well completion |
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Application publication date: 20210706 |
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