CN112302563B - Ultrashort-clamping-distance water injection sand prevention packer and operation method thereof - Google Patents
Ultrashort-clamping-distance water injection sand prevention packer and operation method thereof Download PDFInfo
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- CN112302563B CN112302563B CN202011280767.6A CN202011280767A CN112302563B CN 112302563 B CN112302563 B CN 112302563B CN 202011280767 A CN202011280767 A CN 202011280767A CN 112302563 B CN112302563 B CN 112302563B
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- 238000002347 injection Methods 0.000 title claims abstract description 52
- 239000007924 injection Substances 0.000 title claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000004576 sand Substances 0.000 title claims abstract description 47
- 230000002265 prevention Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 9
- 238000007789 sealing Methods 0.000 claims abstract description 106
- 230000008878 coupling Effects 0.000 claims abstract description 20
- 238000010168 coupling process Methods 0.000 claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims description 16
- 210000000078 claw Anatomy 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000004073 vulcanization Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
-
- 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
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
-
- 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
-
- 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
- E21B43/14—Obtaining from a multiple-zone well
-
- 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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- 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)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses an ultrashort-clamping-distance water injection sand prevention packer which comprises an upper sealing barrel, a packer A section, a double-layer water injection sand prevention screen pipe, a packer B section, a lower sealing barrel, a positioning coupling and a service tool. Compared with the prior art that the completion string is used for stratigraphic layering by utilizing a completion packer matched with an inserted sealing tool, the number of the layering is limited, and the difficulty of subdividing the layer again under the condition of not moving the completion string is higher. The invention relates to an ultrashort-blocking-distance water injection sand prevention packer, the inner diameter of which is 4.25%, the effectiveness of reservoir sealing under the minimum 1.9m blocking distance can be realized, and the sand prevention and water injection operation requirements of a subdivided bed series of a 7' cased hole reservoir section are met.
Description
Technical Field
The invention belongs to the field, and particularly relates to an ultrashort stuck distance water injection sand prevention packer and an operation method thereof.
Background
The existing offshore oilfield water injection well zonal injection technology is to perform secondary seal on the basis of a packer after sand control completion, and the number of zonal injection is limited. The well completion packer matched with the inserting sealing tool is used for stratigraphic layering on the basis of the existing well completion pipe string, and if the oil deposit has the requirement of water injection of the subdivided layer, the difficulty of subdividing the layer again is high under the condition of not moving the well completion pipe string.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an ultrashort stuck distance water injection sand prevention packer and an operation method thereof.
The invention is realized by the following technical scheme:
an ultrashort stuck distance water injection sand prevention packer comprises an upper sealing cylinder, a packer A section, a double-layer water injection sand prevention sieve tube, a packer B section, a lower sealing cylinder, a positioning coupling and a service tool;
the lower end of the upper sealing cylinder is connected with a male thread at the upper part of a section A of the packer through a female thread, the double-layer water injection sand control screen pipe comprises an outer screen pipe and an inner pipe column, an annulus is formed between the outer screen pipe and the inner pipe column, the outer screen pipe is connected with the male thread at the lower part of the section A of the packer through an upper female thread, the upper end of the inner pipe column is connected with the female thread inside the outer screen pipe through a male thread, the lower ends of the outer screen pipe and the inner pipe column are respectively connected with the male thread at the upper part of a section B of the packer through female threads, the upper end of the lower sealing cylinder is connected with the male thread at the lower part of the section B of the packer through a female thread, and the lower end of the lower sealing cylinder is connected with a positioning coupling through a male thread;
a liquid passing hole is formed in the inner-layer tubular column, a rupture disc is covered on the surface of the liquid passing hole, and a circulating sliding sleeve for opening or closing the liquid passing hole is arranged on the inner wall of the inner-layer tubular column;
the service tool comprises an upper joint, a seat seal short section, a closing tool, a positioning tool, an opening and closing tool, an opening tool and a check valve which are sequentially connected from top to bottom; the sealing device is characterized in that a sealing hole is formed in the sealing short section, a sealing module I is installed on the upper joint, and a sealing module II is installed at the lower end of the closing tool.
In the technical scheme, the A section of the packer comprises a central pipe, a sealing rubber cylinder and vulcanized spiral springs, wherein the sealing rubber cylinder is arranged on the central pipe, and the vulcanized spiral springs are arranged on two sides of the sealing rubber cylinder.
In the technical scheme, the packer B section comprises a central pipe, a sealing rubber cylinder and vulcanized spiral springs, wherein the sealing rubber cylinder is arranged on the central pipe, and the vulcanized spiral springs are arranged on two sides of the sealing rubber cylinder.
In the technical scheme, the packer A section and the packer B section are distributed in a symmetrical structure.
In the technical scheme, the contact surface taper angle of the side rubber cylinder and the middle rubber cylinder is 75 degrees.
In the technical scheme, mechanical claws are respectively formed at the upper end and the lower end of the circulating sliding sleeve, a closing pin matched with the mechanical claw of the circulating sliding sleeve is formed on the outer wall of the closing tool, the sliding sleeve is closed by lifting upwards, and the sliding sleeve is not acted by pressing downwards; a switch pin matched with the circulating sliding sleeve mechanical claw is formed on the outer wall of the switch tool, the sliding sleeve is closed by lifting up, and the sliding sleeve is opened by pressing down; and an opening pin matched with the mechanical claw of the circulating sliding sleeve is formed on the outer wall of the opening tool, so that the opening tool can lift up the circulating sliding sleeve to be ineffective and push down to open the sliding sleeve.
In the above technical scheme, the outer wall of the positioning tool is formed with a positioning groove matched with the positioning collar.
In the above technical scheme, a plurality of mounting holes matched with the rupture disk are arranged on the side wall of the inner tubular column.
In the technical scheme, the distance between the rupture disc and the sand control screen is 100-200mm.
An operation method of an ultra-short-throw water injection sand prevention packer comprises the following steps:
1. setting: the positioning tool is located at the upper end or the lower end of the positioning coupling, and the positioning tool and the positioning coupling are mechanically matched; a sealing module I on the service tool is matched and sealed with the upper sealing barrel, a sealing module II on the service tool is matched and sealed with the lower sealing barrel, the seat sealing short section is positioned between the upper sealing barrel and the lower sealing barrel, the check valve is closed, the circulating sliding sleeve is closed, liquid is injected into the tubular column, the liquid respectively enters a hydraulic cavity between a central tube and a vulcanization spiral spring on the sections A and B of the packer through a seat sealing hole on the seat sealing short section, the vulcanization spiral spring is pushed to extrude the sealing rubber barrel, and seat sealing is completed;
2. and (4) seal checking: the positioning tool is located at the upper end or the lower end of the positioning coupling, and the positioning tool and the positioning coupling are mechanically matched; a sealing module I on the service tool is matched and sealed with the upper sealing barrel, a sealing module II on the service tool is matched and sealed with the lower sealing barrel, the seat sealing short section is positioned between the upper sealing barrel and the lower sealing barrel, the check valve is closed, the circulating sliding sleeve is opened, the rupture disc is ruptured, liquid is injected into the pipe column, and the liquid enters the stratum through the seat sealing short section, the inner pipe column liquid passing hole and the outer screen pipe to complete the construction of a seal checking channel;
3. water injection or oil extraction: and lifting the service tool, taking out the service tool, keeping the circulating sliding sleeve open, and executing water injection or oil extraction operation.
The invention has the advantages and positive effects that:
compared with the prior art that the completion string is used for stratigraphic layering by using a completion packer matched with an inserting sealing tool, the number of the stratified layers is limited, and the difficulty of the stratified layers is higher under the condition of not moving the completion string. The invention relates to an ultrashort-blocking-distance water injection sand prevention packer, the inner diameter of which is 4.25%, the effectiveness of reservoir sealing under the minimum 1.9m blocking distance can be realized, and the sand prevention and water injection operation requirements of a subdivided bed series of a 7' cased hole reservoir section are met.
Drawings
FIG. 1: the invention discloses a structural schematic diagram of an ultrashort stuck distance water injection sand prevention packer;
FIG. 2: the invention is a service tool structure diagram;
FIG. 3: setting a packer flow chart;
FIG. 4: a packer seal checking flow chart;
FIG. 5: the double-layer water injection sand control screen pipe is an enlarged structural schematic diagram;
FIG. 6: a structural schematic diagram of a setting state circulating sliding sleeve and a rupture disc;
FIG. 7: the structure of the circulation sliding sleeve and the rupture disk in the sealing state is schematically shown.
The attached drawings are marked as follows: 1. an upper sealing cylinder; 2. a packer section A; 3. double-layer water injection sand control screen pipes; 4. a packer B section; 5. a lower sealing cylinder; 6. positioning a coupling; 7. two sides of the rubber cylinder; 8. a coil spring; 9. circulating the sliding sleeve; 10. an upper joint; 11. setting a short joint; 12. closing the tool; 13. a positioning tool; 14. a switching means; 15. opening the tool; 16. a check valve; 17. sealing the hole; 18. a sealing module I; 19. a sealing module I; 20. a middle rubber cylinder; 21. an inner tubular column; 22. a rupture disc; 23. and (7) mounting holes.
For a person skilled in the art, without inventive effort, other relevant figures can be derived from the above figures.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the technical solutions of the present invention are further described below with reference to specific examples.
Examples
As shown in attached figures 1 to 7, the ultra-short-throw water injection sand prevention packer and the construction method thereof have API (American Petroleum institute) standard buckling types at the upper end and the lower end, and comprise an upper sealing barrel, a packer A section, a double-layer water injection sand prevention sieve tube, a packer B section, a lower sealing barrel, a positioning coupling and a service tool assembly.
The inner surface of the upper sealing cylinder is a sealing surface, the upper end of the upper sealing cylinder is a female thread, and the lower end of the upper sealing cylinder is connected with an upper male thread of the section A of the packer through the female thread; and a middle rubber sleeve 20 and two side rubber sleeves 7 at the section A of the packer are sequentially arranged on the central pipe, and spiral springs 8 are vulcanized on two sides of each rubber sleeve.
The double-layer water injection sand control screen pipe is of a double-layer structure and is provided with an annular space, the outer screen pipe is connected with the male thread at the lower part of the section A of the packer through the female thread at the upper end, and the female thread at the lower end of the outer screen pipe is connected with the male thread 1 at the upper part of the section B of the packer. The upper end of the inner pipe column 21 is connected with the female thread inside the outer screen pipe through male threads, and the lower part of the inner pipe column is provided with a circulating sliding sleeve 9.
And a plurality of mounting holes 23 matched with the rupture disc 22 are formed in the side wall of the inner tubular column.
The lower end of the inner-layer pipe column is connected with a male thread 2 on the upper part of a section B of the packer through a female thread.
The middle rubber sleeve 20 and the two side rubber sleeves 7 of the section B of the packer are sequentially arranged on the central pipe, and the two sides of each rubber sleeve are sealed to vulcanize the spiral springs; the inner surface of the lower sealing barrel is a sealing surface, the upper end of the lower sealing barrel is connected with a male thread at the lower part of the section B of the packer through a female thread, and the upper end of the lower sealing barrel is connected with a positioning coupling through a male thread.
The service tool assembly is provided with an upper joint 10, a seat seal short section 11, a closing tool 12, a positioning tool 13, a switching tool 14, an opening tool 15 and a check valve 16 which are sequentially connected from top to bottom, wherein a seat seal hole 17 is formed in the seat seal short section, and a sealing module I18 is installed on the upper joint, and a sealing module II19 is installed at the lower end of the closing tool.
In the process of setting the ultra-short-clamping-distance water injection sand prevention packer, the positioning tool is located at the upper end or the lower end of the positioning coupling, and the positioning tool and the positioning coupling are mechanically matched. Sealing module I on the service tool assembly with the sealed section of thick bamboo cooperation in upper portion is sealed, sealing module II on the service tool assembly with the sealed section of thick bamboo cooperation in lower part is sealed, the setting nipple joint is located the sealed section of thick bamboo in upper portion with between the sealed section of thick bamboo in lower part, the circulation sliding sleeve is in the closed condition, constitutes the setting passageway of ultrashort calorie apart from water injection sand control packer in bottom.
In the process of testing the ultra-short-distance water injection sand prevention packer, the positioning tool is located at the upper end or the lower end of the positioning coupling and is mechanically matched with the positioning coupling. Sealing module I on the service tool assembly with the sealed cooperation of upper portion sealing barrel is sealed, sealing module II on the service tool assembly with the sealed cooperation of lower part sealing barrel is sealed, the setting nipple joint is located the sealed section of thick bamboo of upper portion with between the sealed section of thick bamboo of lower part, the circulation sliding sleeve is in the open mode, the rupture disc is in rupture state, founds the test of ultrashort calorie apart from water injection sand control packer in bottom and seals the passageway.
When in use, the operation is carried out layer by layer from bottom to top.
The positioning tool 13 on the service tool assembly is firstly operated to be positioned at the lower part or the upper part of the positioning collar 6, so as to realize mechanical positioning. Then the operation is carried out according to the following steps:
setting: and the setting 4 of the packer A section 2 and the packer B section is realized by pressurizing in the drill rod.
And (4) seal checking: and lifting the service tool assembly, opening the circulating sliding sleeve 9, lowering to a setting position, constructing a packer seal checking channel, and then performing seal checking on the packer A section 2 and the packer B section 4 of the bottom operation tubular column section by pressurizing in the drill rod.
The ultrashort stuck distance water injection sand prevention packer is divided into an A section and a B section, the A section and the B section of the packer are distributed in a symmetrical structure, and the middle part of the packer is connected with the double-layer water injection sand prevention sieve tube, so that the effectiveness of reservoir sealing under the minimum stuck distance of 1.3m is realized, and the requirements of the reservoir section sand prevention operation and the water injection operation are met.
The outer layer of the double-layer water injection sand control screen pipe is a sand control screen pipe, the inner layer of the double-layer water injection sand control screen pipe is provided with a circulating sliding sleeve and a rupture disc, and the sealing performance of the section A and the section B of the packer is established by the circulating sliding sleeve, the upper sealing barrel and the lower sealing barrel in the setting process.
The circulating sliding sleeve and the rupture disk complement each other, and the rupture disk is used as a pressure-bearing mechanism to enable the packer setting to be more reliable under the condition that the sealing of the circulating sliding sleeve is unreliable.
The closed or open state of the double-layer water injection sand control screen pipe is controllable, and the double-layer water injection sand control screen pipe is different from the prior art that the screen pipe part can only be in an open state, and layered mining or water injection can be realized without running a production pipe column.
The invention has been described in an illustrative manner, and it is to be understood that any simple variations, modifications or other equivalent changes which can be made by one skilled in the art without departing from the spirit of the invention fall within the scope of the invention.
Claims (10)
1. The utility model provides an ultrashort calorie of apart from water injection sand control packer which characterized in that: the packer comprises an upper sealing barrel, a packer A section, a double-layer water injection sand control screen pipe, a packer B section, a lower sealing barrel, a positioning coupling and a service tool;
the lower end of the upper sealing cylinder is connected with a male thread at the upper part of a section A of the packer through a female thread, the double-layer water injection sand control screen pipe comprises an outer screen pipe and an inner pipe column, an annulus is formed between the outer screen pipe and the inner pipe column, the outer screen pipe is connected with the male thread at the lower part of the section A of the packer through an upper female thread, the upper end of the inner pipe column is connected with the female thread inside the outer screen pipe through a male thread, the lower ends of the outer screen pipe and the inner pipe column are respectively connected with the male thread at the upper part of a section B of the packer through female threads, the upper end of the lower sealing cylinder is connected with the male thread at the lower part of the section B of the packer through a female thread, and the lower end of the lower sealing cylinder is connected with a positioning coupling through a male thread;
a liquid passing hole is formed in the inner-layer tubular column, a rupture disc is arranged on the surface of the liquid passing hole in a covering mode, and a circulating sliding sleeve used for opening or closing the liquid passing hole is arranged on the inner wall of the inner-layer tubular column;
the service tool comprises an upper joint, a seat seal short section, a closing tool, a positioning tool, an opening and closing tool, an opening tool and a check valve which are sequentially connected from top to bottom; a seat sealing hole is formed in the seat sealing short section, a sealing module I is installed on the upper joint, and a sealing module II is installed at the lower end of the closing tool;
the middle rubber sleeve and the two side rubber sleeves of the section A of the packer are sequentially arranged on the central pipe, and the two sides of the sealing rubber sleeves are vulcanized with spiral springs.
2. The ultra-short-throw water injection sand control packer of claim 1, characterized in that: the packer A section comprises a central pipe, a sealing rubber cylinder and vulcanized spiral springs, wherein the sealing rubber cylinder is arranged on the central pipe, and the vulcanized spiral springs are arranged on two sides of the sealing rubber cylinder.
3. The ultra-short-throw water injection sand control packer of claim 1, characterized in that: the packer B section comprises a central pipe, a sealing rubber cylinder and vulcanized spiral springs, wherein the sealing rubber cylinder is arranged on the central pipe, and the vulcanized spiral springs are arranged on two sides of the sealing rubber cylinder.
4. The ultra-short stuck distance water injection sand control packer of claim 1, characterized in that: the packer A section and the packer B section are distributed in a symmetrical structure.
5. The ultra-short-throw water injection sand control packer of claim 1, characterized in that: the contact surface taper angle of the side rubber cylinder and the middle rubber cylinder is 75 degrees.
6. The ultra-short-throw water injection sand control packer of claim 1, characterized in that: the upper end and the lower end of the circulating sliding sleeve are respectively provided with a mechanical claw, the outer wall of the closing tool is provided with a closing pin matched with the mechanical claw of the circulating sliding sleeve, the sliding sleeve is closed by lifting upwards, and the pressing does not work; a switch pin matched with the circulating sliding sleeve mechanical claw is formed on the outer wall of the switch tool, the sliding sleeve is closed by lifting up, and the sliding sleeve is opened by pressing down; the opening tool outer wall is formed with circulation sliding sleeve gripper assorted opening pin lifts the inoperative, pushes down and opens the sliding sleeve.
7. The ultra-short-throw water injection sand control packer of claim 1, characterized in that: and a positioning groove matched with the positioning collar is formed on the outer wall of the positioning tool.
8. The ultra-short stuck distance water injection sand control packer of claim 1, characterized in that: and a plurality of mounting holes matched with the rupture disc are formed in the side wall of the inner-layer pipe column.
9. The ultra-short stuck distance water injection sand control packer of claim 1, characterized in that: the distance between the rupture disc and the sand control screen pipe is 100-200mm.
10. An operation method of an ultrashort stuck distance water injection sand prevention packer is characterized in that:
1. setting: the positioning tool is located at the upper end or the lower end of the positioning coupling, and the positioning tool and the positioning coupling are mechanically matched; a sealing module I on a service tool is matched and sealed with an upper sealing barrel, a sealing module II on the service tool is matched and sealed with a lower sealing barrel, a seat sealing short section is positioned between the upper sealing barrel and the lower sealing barrel, a check valve is closed, a circulating sliding sleeve is closed, liquid is injected into a pipe column, the liquid respectively enters a hydraulic cavity between a central pipe and a vulcanization spiral spring on an upper section A of a packer and an upper section B of the packer through a seat sealing hole on the seat sealing short section, the vulcanization spiral spring is pushed to extrude a sealing rubber barrel, and seat sealing is completed;
2. and (4) seal checking: the positioning tool is located at the upper end or the lower end of the positioning coupling, and the positioning tool and the positioning coupling are mechanically matched; a sealing module I on the service tool is matched and sealed with an upper sealing barrel, a sealing module II on the service tool is matched and sealed with a lower sealing barrel, a seat sealing short section is positioned between the upper sealing barrel and the lower sealing barrel, a check valve is closed, a circulating sliding sleeve is opened, a rupture disc is ruptured, liquid is injected into a pipe column, and the liquid enters a stratum through the seat sealing short section, an inner layer pipe column liquid passing hole and an outer layer screen pipe to complete the construction of a seal checking channel;
3. water injection or oil extraction: and lifting the service tool, taking out the service tool, keeping the circulating sliding sleeve open, and executing water injection or oil extraction operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011280767.6A CN112302563B (en) | 2020-11-16 | 2020-11-16 | Ultrashort-clamping-distance water injection sand prevention packer and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011280767.6A CN112302563B (en) | 2020-11-16 | 2020-11-16 | Ultrashort-clamping-distance water injection sand prevention packer and operation method thereof |
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| CN112302563B true CN112302563B (en) | 2022-10-11 |
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| CN113338843B (en) * | 2021-06-10 | 2022-07-29 | 王文龙 | Sand-blocking-proof forced deblocking packer |
| CN114753788B (en) * | 2022-04-08 | 2023-07-28 | 中海油能源发展股份有限公司 | Integrated pipe column suitable for sand prevention well completion flushing and sealing inspection and operation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8267178B1 (en) * | 2011-09-01 | 2012-09-18 | Team Oil Tools, Lp | Valve for hydraulic fracturing through cement outside casing |
| CN103266873A (en) * | 2013-02-28 | 2013-08-28 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Connecting structure of multilevel hydraulic spraying segmentation fracturing tubular column |
| CN204729048U (en) * | 2015-05-19 | 2015-10-28 | 中国海洋石油总公司 | Non-rotating set packer in the big orifice sleeve pipe of high angle hole or deep water test |
| CN105545221B (en) * | 2016-03-04 | 2017-11-24 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | A kind of shale gas well no killing well is not with pressure to remove flow string and construction method |
| CN106555572B (en) * | 2016-11-30 | 2018-12-14 | 中国海洋石油集团有限公司 | A kind of manpower intervention formula pulsed infusion method |
| CN107762444B (en) * | 2017-06-26 | 2021-07-02 | 中国海洋石油集团有限公司 | Integrated tubular column for well cementation and sand prevention and use method |
| CN110552667B (en) * | 2019-09-30 | 2024-04-19 | 东营市瑞丰石油技术发展有限责任公司 | Layered filling pipe column, layered water control pipe column and layered filling and layered water control process |
| CN111425148B (en) * | 2020-05-15 | 2023-08-22 | 中国石油化工股份有限公司 | Casing pipe column applying toe end sliding sleeve to full-diameter sliding sleeve and application method thereof |
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