CN112502674B - Filling tool for oil field operation - Google Patents
Filling tool for oil field operation Download PDFInfo
- Publication number
- CN112502674B CN112502674B CN202110171635.8A CN202110171635A CN112502674B CN 112502674 B CN112502674 B CN 112502674B CN 202110171635 A CN202110171635 A CN 202110171635A CN 112502674 B CN112502674 B CN 112502674B
- Authority
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- China
- Prior art keywords
- fixedly connected
- filling
- filling layer
- outer tube
- outer pipe
- 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.)
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- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 238000000576 coating method Methods 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004922 lacquer Substances 0.000 claims abstract 2
- 238000004140 cleaning Methods 0.000 claims description 14
- 229920000742 Cotton Polymers 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims 7
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 20
- 239000007788 liquid Substances 0.000 description 19
- 239000004576 sand Substances 0.000 description 7
- 239000003973 paint Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 239000003129 oil well Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- E21B43/04—Gravelling of wells
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
-
- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Cleaning In General (AREA)
Abstract
The invention provides a filling tool for oilfield operation, and relates to the technical field of petroleum fields. Oil field work fills instrument, including the outer tube, the inside intermediate position of outer tube is provided with the inner tube, and the surperficial top of outer tube is provided with wear-resistant coating, and the surperficial intermediate position of outer tube is provided with anticorrosive coating, the surperficial bottom fixedly connected with slide rail of outer tube. Be provided with the second filling layer through the surface at the outer tube, the one end on second filling layer is provided with the valve, the bottom of valve is provided with the opening door, be provided with the second filling layer bottom the surface of outer tube, when boring the ground, when not reaching the purpose layer, utilize switch door and sliding door to protect first filling layer and second filling layer, avoid the tiny grit in the oilfield well to the influence of inner tube, be provided with wear-resistant coating respectively on the surface of outer tube simultaneously, anticorrosive coating and anti rust resin lacquer, when boring the ground, like this, play wear-resisting anticorrosive and rust-resistant function to whole filling instrument, be worth wideling popularize.
Description
Technical Field
The invention relates to the technical field of petroleum fields, in particular to a filling tool for oil field operation.
Background
An oil field is a general term for a specific region of crude oil production, sometimes called an underground accumulated oil layer in a specific region, and a plurality of oil regions are broadly called an oil field, and a filling tool is required when the oil field is operated.
With the development of socialization, the range of filling tools for oil field downhole operation is wider and wider, but the existing filling tools have problems in use, when the tools are used for filling, when the tools do not reach a target layer for filling, fine sand stones in an oil well may enter an inner pipe through an outer pipe opening to affect filling, and after the tools are used for filling, sand-carrying liquid in the oil well may be attached to the inside of a cavity for a long time and cannot be cleaned in time to affect use.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a filling tool for oilfield operation, which solves the problems that sand-carrying liquid is attached to the inner wall of a cavity and external sand enters an inner pipe.
In order to achieve the purpose, the invention is realized by the following technical scheme: the oil field operation filling tool comprises an outer pipe, an inner pipe is arranged in the middle of the outer pipe, a wear-resistant coating is arranged on the top of the surface of the outer pipe, an anti-corrosion coating is arranged in the middle of the surface of the outer pipe, a sliding rail is fixedly connected to the bottom of the surface of the outer pipe, sliding doors are slidably connected to the top and the bottom of the sliding rail, a first filling layer is arranged on the bottom of the surface of the outer pipe, two circular grooves are formed in the middle of the first filling layer, a fixing shaft is arranged in the middle of the circular grooves, partition blades are rotatably connected to the outer portion of the fixing shaft, a plurality of circular holes are formed in the outer portion of the circular grooves, three second filling layers are arranged on the surface of the outer pipe, outlets are formed in two ends of each second filling layer, valves are fixedly connected to the tops of the outlets, the bottom of valve is provided with two switch mouths, the both sides of inner tube all are provided with the drainage chamber, the outside fixedly connected with connecting plate in drainage chamber, the surface of connecting plate is provided with three electric telescopic handle, the inside in drainage chamber is provided with three fixed plate, the one end fixedly connected with motor of fixed plate, the one end rotation of motor is connected with the washing stick.
Preferably, the top of the inner tube is fixedly connected with a connecting piece, and the bottom of the surface of the outer tube is provided with antirust resin paint.
Preferably, an electric push rod is fixedly connected to the bottom of one side of the outer portion of the first filling layer, a sliding door is fixedly connected to one end of the electric push rod, and a housing is fixedly connected to the outer portion of the electric push rod.
Preferably, the circular holes are distributed in an annular array along the center of the fixed shaft, and the separation blades are distributed in an annular array along the circle center of the fixed shaft.
Preferably, the opening and closing port and the filling port are mutually attached, and the drainage cavity is communicated with the outlet.
Preferably, the electric telescopic rod penetrates through the connecting plate and is fixedly connected with the fixing plate.
Preferably, the top and the bottom of the cleaning rod are both fixedly connected with absorbent cotton.
Preferably, a pressure rod is arranged inside the inner pipe.
The working principle is as follows: when the tool is used, three second filling layers are arranged on the surface of the outer pipe, outlets are arranged at two ends of each second filling layer, a valve is arranged at the top of each outlet, a switch opening is arranged at the bottom of each valve, a first filling layer is arranged at the bottom of the surface of the outer pipe, slide rails are arranged at the top and the bottom of each first filling layer, a sliding door is connected to the surface of each slide rail in a sliding mode, when the tool does not reach a target layer, small stones in an oil well field are prevented from entering the filling tool through the first filling layer and the second filling layer through the sliding door and the switch opening, when the tool is filled, the first filling layer and the second filling layer are opened through an electric push rod and the valve respectively, sand-carrying liquid in the inner pipe is filled through a pressure rod, after the filling is finished, in order to avoid the sand-carrying liquid from being accumulated in a drainage cavity, an electric telescopic rod is arranged outside the drainage cavity, the inside in drainage chamber is provided with the fixed plate, fixed plate one end fixedly connected with motor, and motor one end is rotated and is connected with the washing stick, and when filling the back that finishes, start electric telescopic handle and motor, drive and wash the stick and rotate, utilizes the washing cotton on the washing stick, adsorbs the sand-laden liquid that probably adheres to in the drainage intracavity, in time clears up, facilitates the use.
The invention provides an oilfield operation filling tool. The method has the following beneficial effects:
1. according to the invention, the second filling layer is arranged on the surface of the outer pipe, the valve is arranged at one end of the second filling layer, the opening and closing port is arranged at the bottom of the valve, the first filling layer is arranged at the bottom of the surface of the outer pipe, when a target layer is not reached during drilling, the opening and closing port and the sliding door are used for protecting the second filling layer and the first filling layer, so that the influence of fine sand stones in an oil field well on the inner pipe is avoided, and meanwhile, the wear-resistant coating, the anticorrosive coating and the antirust resin paint are respectively arranged on the surface of the outer pipe, so that the wear-resistant, anticorrosive and antirust functions are achieved on the whole filling tool during drilling.
2. The invention arranges the filling port at one side of the second filling layer, arranges the round hole and the round groove at the middle position of the first filling layer, meanwhile, a fixed shaft is arranged in the circular groove, a separation blade is arranged outside the fixed shaft, when the sand-carrying liquid is extruded by the pressure rod, the bottom of the oil field is filled through the round hole circular groove, the periphery of the oil field is filled through the filling port, therefore, the filling range is wider, after the sand-carrying liquid is filled, in order to prevent the sand-carrying liquid from accumulating in the drainage cavity, an electric telescopic rod is arranged outside the drainage cavity, a fixed plate is arranged inside the drainage cavity, one end of the fixed plate is rotatably connected with a cleaning rod, absorbent cotton is arranged around the cleaning rod, after filling, start electric telescopic handle, rotate the cleaning rod and make the cotton absorption of water on the cleaning rod adsorb the liquid of taking the sand liquid, avoid piling up, be worth wideling popularize.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the outlet configuration of the present invention;
FIG. 3 is a schematic view of a first filling layer structure according to the present invention;
FIG. 4 is a schematic view of the internal structure of the outer tube of the present invention;
FIG. 5 is a schematic structural view of the outer side wall of the drainage chamber of the present invention;
FIG. 6 is a schematic diagram of the structure of the inner sidewall of a drainage chamber according to the present invention;
FIG. 7 is a schematic view of the structure of a drainage lumen cleaning rod of the present invention.
Wherein, 1, an outer tube; 2. an inner tube; 3. a connecting member; 4. a wear-resistant coating; 5. an anti-corrosion coating; 6. antirust resin paint; 7. a first filling layer; 8. a slide rail; 9. an electric push rod; 10. a second filling layer; 11. a valve; 12. a switch port; 13. a filling port; 14. a sliding door; 15. a circular hole; 16. a circular groove; 17. a fixed shaft; 18. separating leaves; 19. a housing; 20. an outlet; 21. a drainage lumen; 22. a pressure lever; 23. a connecting plate; 24. an electric telescopic rod; 25. a fixing plate; 26. a motor; 27. cleaning the rod; 28. absorbent cotton.
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 to 7, an oil field operation filling tool provided by an embodiment of the present invention includes an outer tube 1, an inner tube 2 is disposed at an inner middle position of the outer tube 1, a wear-resistant coating 4 is disposed on a top surface of the outer tube 1, the wear-resistant coating 4 is used for protecting the outer tube 1 and preventing sand and stones inside an oil field from rubbing and wearing the outer tube 1, an anti-corrosion coating 5 is disposed at a surface middle position of the outer tube 1 and is used for reducing corrosion of substances inside the oil field on the outer tube 1, a sliding rail 8 is fixedly connected to a surface bottom of the outer tube 1, sliding doors 14 are slidably connected to top and bottom of the sliding rail 8, a first filling layer 7 is disposed at a surface bottom of the outer tube 1, the first filling layer 7 is used for filling the bottom of the oil field, two circular grooves 16 are disposed at a middle position of the first filling layer 7, a, the outside of the fixed shaft 17 is rotatably connected with a separation blade 18, when the sand-carrying fluid is filled, the filling range is expanded through the separation blade 18, the outside of the circular groove 16 is provided with a plurality of circular holes 15 to further expand the filling range, the surface of the outer pipe 1 is provided with three second filling layers 10, the second filling layers 10 fill the periphery of the oil field, the first filling layer 7 and the second filling layers 10 uniformly fill the whole oil field, namely, the range of the periphery and the bottom is considered, both ends of the second filling layers 10 are provided with outlets 20, the top of the outlets 20 is fixedly connected with a valve 11, the middle position of the outlets 20 is provided with a filling port 13, the bottom of the valve 11 is provided with two opening and closing ports 12, the surface of the outer pipe 1 is provided with the second filling layer 10, one end of the second filling layer 10 is provided with a valve 11, and the bottom of the valve 11 is provided with an opening and closing port 12, be provided with first filling layer 7 bottom the surface of outer tube 1, when boring the ground, when not reaching the purpose layer, utilize switch port 12 and sliding door 14 to protect second filling layer 10 and first filling layer 7, avoid the tiny grit in the oil field well to the influence of inner tube 2, the both sides of inner tube 2 all are provided with drainage chamber 21, the outside fixedly connected with connecting plate 23 in drainage chamber 21, the surface of connecting plate 23 is provided with three electric telescopic handle 24, the inside in drainage chamber 21 is provided with three fixed plate 25, the one end fixedly connected with motor 26 of fixed plate 25, the one end rotation of motor 26 is connected with cleaning rod 27.
The top of inner tube 2 is fixedly connected with connecting piece 3, and the surperficial bottom of outer tube 1 is provided with anti-rust resin paint 6, and anti-rust resin paint 6 is in order to avoid the oxidation of chemical substance in the oil field to outer tube 1.
An electric push rod 9 is fixedly connected to the bottom of the outer side of the first filling layer 7, a sliding door 14 is fixedly connected to one end of the electric push rod 9, a shell 19 is fixedly connected to the outer side of the electric push rod 9, and the purpose of the shell 19 is to protect the electric push rod 9.
The circular holes 15 are distributed along the center of the fixed shaft 17 in an annular array, and the separation blades 18 are distributed along the center of the fixed shaft 17 in an annular array, wherein the annular array has the advantage of expanding the filling range of the sand-carrying liquid.
The switch port 12 and the filling port 13 are mutually attached, the purpose of the attachment is to protect the filling port 13 from fine stones entering the inner tube 2, and the drainage cavity 21 and the outlet 20 are mutually communicated, so that sand-carrying liquid can conveniently enter.
The electric telescopic rod 24 passes through the connecting plate 23 and is fixedly connected with the fixing plate 25.
The top and the bottom of the cleaning rod 27 are both fixedly connected with absorbent cotton 28, and the chemical property of the absorbent cotton 28 is utilized to absorb the liquid residue of the sand-carrying liquid.
The inner pipe 2 is provided with a pressure rod 22 inside, and the pressure rod 22 pressurizes the sand carrying liquid to enable the sand carrying liquid to enter the filling port 13 from the drainage cavity 21.
Therefore, the whole tool is used in the process that three second filling layers 10 are arranged on the surface of the outer pipe 1, outlets 20 are arranged at two ends of each second filling layer 10, a valve 11 is arranged at the top of each outlet 20, a switch port 12 is arranged at the bottom of each valve 11, a first filling layer 7 is arranged at the bottom of the surface of the outer pipe 1, slide rails 8 are arranged at the top and the bottom of each first filling layer 7, a slide door 14 is connected to the surface of each slide rail 8 in a sliding manner, when a target layer is not reached, the slide door 14 and the switch port 12 are used for preventing fine stones in an oil well field from entering the filling tool through the first filling layer 7 and the second filling layer 10, when filling is carried out, the first filling layer 7 and the second filling layer 10 are respectively opened through the electric push rod 9 and the valve 11, the sand-carrying liquid in the inner pipe 2 is filled through the press rod 22, and after filling is finished, in order to avoid accumulating the sand-carrying liquid in the drainage cavity 21, the electric telescopic rod 24 is arranged outside the drainage cavity 21, the fixing plate 25 is arranged inside the drainage cavity 21, one end of the fixing plate 25 is fixedly connected with the motor 26, one end of the motor 26 is rotatably connected with the cleaning rod 27, after the filling is finished, the electric telescopic rod 24 and the motor 26 are started, the cleaning rod 27 is driven to rotate, the water-absorbing cotton 28 on the cleaning rod 27 is utilized to adsorb the sand-carrying liquid possibly attached to the drainage cavity 21, the cleaning is timely carried out, the use is convenient, meanwhile, the wear-resistant coating 4, the anti-corrosion coating 5 and the anti-rust resin paint 6 are respectively arranged on the surface of the outer tube 1, and therefore, when the ground is drilled, the whole filling tool is provided with the.
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 filling tool includes outer tube (1), its characterized in that: the inner pipe (2) is arranged at the middle position inside the outer pipe (1), the top of the surface of the outer pipe (1) is provided with a wear-resistant coating (4), the middle position of the surface of the outer pipe (1) is provided with an anticorrosive coating (5), the bottom of the surface of the outer pipe (1) is fixedly connected with a slide rail (8), the top and the bottom of the slide rail (8) are both slidably connected with a sliding door (14), the bottom of the surface of the outer pipe (1) is provided with a first filling layer (7), the middle position of the first filling layer (7) is provided with two circular grooves (16), the middle position of each circular groove (16) is provided with a fixed shaft (17), the outer part of each fixed shaft (17) is rotatably connected with a separation blade (18), the outer part of each circular groove (16) is provided with a plurality of circular holes (15), the surface of the outer pipe (1) is, the both ends of second filling layer (10) all are provided with export (20), the top fixedly connected with valve (11) of export (20), fill mouthful (13) have been seted up to the intermediate position of export (20), the bottom of valve (11) is provided with two switch mouths (12), the both sides of inner tube (2) all are provided with drainage chamber (21), the outside fixedly connected with connecting plate (23) of drainage chamber (21), the surface of connecting plate (23) is provided with three electric telescopic handle (24), the inside of drainage chamber (21) is provided with three fixed plate (25), the one end fixedly connected with motor (26) of fixed plate (25), the one end rotation of motor (26) is connected with washing stick (27).
2. The oilfield operation packing tool of claim 1, wherein: the top fixedly connected with connecting piece (3) of inner tube (2), the surperficial bottom of outer tube (1) is provided with anti rust resin lacquer (6).
3. The oilfield operation packing tool of claim 1, wherein: the bottom of one side of the outer portion of the first filling layer (7) is fixedly connected with an electric push rod (9), one end of the electric push rod (9) is fixedly connected with a sliding door (14), and the outer portion of the electric push rod (9) is fixedly connected with a shell (19).
4. The oilfield operation packing tool of claim 1, wherein: the round holes (15) are distributed in an annular array along the center of the fixed shaft (17), and the separation blades (18) are distributed in an annular array along the circle center of the fixed shaft (17).
5. The oilfield operation packing tool of claim 1, wherein: the switch port (12) and the filling port (13) are mutually attached, and the drainage cavity (21) is mutually communicated with the outlet (20).
6. The oilfield operation packing tool of claim 1, wherein: the electric telescopic rod (24) penetrates through the connecting plate (23) and is fixedly connected with the fixing plate (25).
7. The oilfield operation packing tool of claim 1, wherein: the top and the bottom of the cleaning rod (27) are both fixedly connected with absorbent cotton (28).
8. The oilfield operation packing tool of claim 1, wherein: the inner part of the inner pipe (2) is provided with a pressure lever (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110171635.8A CN112502674B (en) | 2021-02-08 | 2021-02-08 | Filling tool for oil field operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110171635.8A CN112502674B (en) | 2021-02-08 | 2021-02-08 | Filling tool for oil field operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112502674A CN112502674A (en) | 2021-03-16 |
| CN112502674B true CN112502674B (en) | 2021-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110171635.8A Active CN112502674B (en) | 2021-02-08 | 2021-02-08 | Filling tool for oil field operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112502674B (en) |
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|---|---|---|---|---|
| US6237687B1 (en) * | 1999-06-09 | 2001-05-29 | Eclipse Packer Company | Method and apparatus for placing a gravel pack in an oil and gas well |
| CN201110169Y (en) * | 2007-12-04 | 2008-09-03 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Eddy backfill apparatus |
| CN101435321A (en) * | 2008-12-26 | 2009-05-20 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Horizontal well tube exterior subsection gravel filling sand prevention process and pipe column |
| CN101929329A (en) * | 2009-06-26 | 2010-12-29 | 大港油田集团有限责任公司 | Gravel filling sand control device of horizontal well screen pipe |
| CN202047799U (en) * | 2011-05-17 | 2011-11-23 | 中国石油天然气股份有限公司 | Foam metal composite sand prevention structure and liquid extraction pipe |
| CN103291255A (en) * | 2013-03-29 | 2013-09-11 | 中国石油天然气股份有限公司 | Packing device for cased hole gravel packing of horizontal well |
| CN207161059U (en) * | 2017-09-12 | 2018-03-30 | 中国海洋石油总公司 | Successively gravel filling tubing string |
| CN110258544A (en) * | 2019-07-26 | 2019-09-20 | 北京中岩大地科技股份有限公司 | The stirring drill bit of deep-layer stirring is realized based on drop resistance mode |
| CN209483313U (en) * | 2018-11-26 | 2019-10-11 | 海塔石油科技有限公司 | A kind of horizontal well slicing and filling device |
| CN111706303A (en) * | 2020-07-01 | 2020-09-25 | 杨国 | One-time multilayer gravel filling sand prevention process and filling sand prevention tool pipe column |
-
2021
- 2021-02-08 CN CN202110171635.8A patent/CN112502674B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6237687B1 (en) * | 1999-06-09 | 2001-05-29 | Eclipse Packer Company | Method and apparatus for placing a gravel pack in an oil and gas well |
| CN201110169Y (en) * | 2007-12-04 | 2008-09-03 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Eddy backfill apparatus |
| CN101435321A (en) * | 2008-12-26 | 2009-05-20 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Horizontal well tube exterior subsection gravel filling sand prevention process and pipe column |
| CN101929329A (en) * | 2009-06-26 | 2010-12-29 | 大港油田集团有限责任公司 | Gravel filling sand control device of horizontal well screen pipe |
| CN202047799U (en) * | 2011-05-17 | 2011-11-23 | 中国石油天然气股份有限公司 | Foam metal composite sand prevention structure and liquid extraction pipe |
| CN103291255A (en) * | 2013-03-29 | 2013-09-11 | 中国石油天然气股份有限公司 | Packing device for cased hole gravel packing of horizontal well |
| CN207161059U (en) * | 2017-09-12 | 2018-03-30 | 中国海洋石油总公司 | Successively gravel filling tubing string |
| CN209483313U (en) * | 2018-11-26 | 2019-10-11 | 海塔石油科技有限公司 | A kind of horizontal well slicing and filling device |
| CN110258544A (en) * | 2019-07-26 | 2019-09-20 | 北京中岩大地科技股份有限公司 | The stirring drill bit of deep-layer stirring is realized based on drop resistance mode |
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| Publication number | Publication date |
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| CN112502674A (en) | 2021-03-16 |
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