CN115306344A - Prestress packing integrated device with double channels and using method thereof - Google Patents
Prestress packing integrated device with double channels and using method thereof Download PDFInfo
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- CN115306344A CN115306344A CN202210984462.6A CN202210984462A CN115306344A CN 115306344 A CN115306344 A CN 115306344A CN 202210984462 A CN202210984462 A CN 202210984462A CN 115306344 A CN115306344 A CN 115306344A
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- 238000012856 packing Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000008878 coupling Effects 0.000 claims abstract description 23
- 238000010168 coupling process Methods 0.000 claims abstract description 23
- 238000005859 coupling reaction Methods 0.000 claims abstract description 23
- 239000003921 oil Substances 0.000 claims description 68
- 238000007789 sealing Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000004873 anchoring Methods 0.000 claims description 6
- 238000005065 mining Methods 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000010779 crude oil Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 230000001815 facial effect Effects 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 7
- 239000007924 injection Substances 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012360 testing method Methods 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
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
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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
- E21B33/122—Multiple string packers
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a prestress packing integrated device with double channels and a using method thereof, relating to the technical field of oil field downhole equipment and comprising a packer, an oil outlet pipe column and a middle pipe which are connected in series in a multistage way, wherein the pipe wall of the middle pipe is internally provided with a plurality of axial oil passage channels, and the middle part of the middle pipe is provided with a plurality of radial bridge-type channels; the middle pipe is connected between the two packers, the inner cavity of the middle pipe is communicated with the first channel, and the oil channel is communicated with the second channel; the upper end and the lower end of the outer pipe of the oil outlet pipe column are respectively and fixedly connected with an upper coupling and a lower coupling, and the middle part of the outer pipe of the oil outlet pipe column is provided with a plurality of radial oil through holes; the inner pipe is positioned in the inner cavity of the outer pipe, and the upper end of the inner pipe is installed on the inner wall of the upper coupling in a threaded manner; the oil outlet pipe column is arranged at the upper end of the top packer, the lower coupling of the oil outlet pipe column is in threaded connection with the upper joint of the top packer, and the inner pipe of the oil outlet pipe column is hermetically sleeved at the upper end of the oil pipe in the inner cavity of the top packer; the device is provided with a multi-stage packer and double channels, and is suitable for the oil extraction process of simultaneous injection and simultaneous production.
Description
Technical Field
The invention relates to the technical field of oil field downhole equipment, in particular to a prestress packing integrated device with double channels and a using method thereof.
Background
The packer is an important downhole tool in the development process of oil and gas fields, is used for sealing and isolating oil, gas and water layers in a casing, and realizes the fields of layered mining, layered testing, special operation and the like, thereby realizing the processes of layered modification, layered injection, mining and the like. The packer can be divided into various types and models according to different supporting modes, setting modes, deblocking modes and the like, and is applied to different water injection or oil extraction and gas production wells. The tail pipe supported prestressed packer is one with well oil pipe in prestressed stretching state, and can prevent the oil pipe from producing spiral bending caused by pressure and load change, prevent eccentric wear between oil pipe and casing pipe, prolong the service life of the whole pipe string and raise the pump efficiency. However, the existing packer can only realize single-channel liquid inlet and outlet, can not simultaneously flow oil, water and other two liquids, and can not be used in the oil extraction process of simultaneous injection and simultaneous extraction.
Therefore, it is urgently needed to develop a dual-channel prestressed and multi-stage packing integrated device.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a pre-stressed packing integrated device with two channels and a using method thereof.
The technical scheme of the invention is as follows: a prestress packing integrated device with two channels comprises a packer and an oil pipe,
the packer comprises a lower joint, a central pipe, an outer central pipe, a key sleeve, a rubber sleeve, a positioning sleeve, a breakable part, an adjusting ring and an upper joint, wherein the outer central pipe is slidably sleeved on the outer side of the central pipe, the lower end of the central pipe is slidably arranged on the inner wall of the lower joint, a plurality of keys are embedded in the middle of the central pipe, and the upper end of the central pipe is fixedly connected with the upper joint; the lower end of the outer central pipe is fixedly connected with the upper part of the lower joint, the middle part of the outer central pipe is provided with a plurality of axial long round holes which are used as sliding tracks of a plurality of keys, and the upper end of the outer central pipe is fixedly connected with the positioning sleeve; the key is arranged in the long round hole in a sliding manner, the outer side of the lower part of the upper joint is fixedly connected with the adjusting ring, the adjusting ring is connected with the positioning sleeve through a plurality of breakable parts, the upper end of the key sleeve is sleeved on the outer central tube in a sliding manner, and the lower end of the key sleeve is fixedly connected with the plurality of keys; the plurality of rubber cylinders are sleeved on the outer central tube between the positioning sleeve and the key sleeve, and a spacer ring is arranged between the rubber cylinders; when the breakable part is not disconnected, the key is positioned at the lower end of the oblong hole;
the oil pipe is positioned in the inner cavity of the packer, and the oil pipe and the packer are coaxially arranged; the inner cavity of the oil pipe is a first channel, and an annular space between the oil pipe and the packer is a second channel.
Preferably, the breakable part is a snapping pin, and a plurality of axial grooves for mounting the snapping pin are formed in the outer circumferential surface of the positioning sleeve.
Preferably, the positioning sleeve is sleeved outside the central tube in a sliding and sealing manner, and a plurality of sealing rings are embedded on the inner wall of the positioning sleeve; and a plurality of sealing rings are also embedded in the upper part of the inner wall of the lower joint.
Preferably, the packer also comprises an oil outlet pipe column and a middle pipe, wherein the packer is provided with multiple stages, and the multiple stages of packers are connected in series from top to bottom;
a plurality of axial oil passage channels are arranged in the pipe wall of the middle pipe, and a plurality of radial bridge-type channels communicated with the inner cavity are arranged in the middle of the middle pipe; the middle pipe is connected between the two packers, the inner cavity of the middle pipe is communicated with a first channel of the packer, and an oil passage of the middle pipe is communicated with a second channel of the packer;
the oil outlet pipe column comprises an upper coupling, an outer pipe, an inner pipe and a lower coupling, the upper end and the lower end of the outer pipe are respectively fixedly connected with the outer side of the lower part of the upper coupling and the outer side of the upper part of the lower coupling, and the middle part of the outer pipe is provided with a plurality of radial oil through holes; the inner pipe is positioned in the inner cavity of the outer pipe, and the upper end of the inner pipe is installed on the inner wall of the upper coupling in a threaded mode; the oil outlet pipe column is arranged at the upper end of the top packer, the lower coupling of the oil outlet pipe column is in threaded connection with the upper joint of the top packer, the inner pipe of the oil outlet pipe column is sleeved at the upper end of an oil pipe in the inner cavity of the top packer in a sealing mode, and correspondingly, the annular space between the outer pipe and the inner pipe is communicated with the second channel of the top packer.
Preferably, a plurality of sealing rings are embedded in the lower part of the inner wall of the inner pipe.
A use method of a pre-stress packing integrated device with double channels comprises the following steps:
1) Connecting an anchoring device at the bottom of the packing and isolating integrated device, and putting the device into a well;
2) After being lowered to the predetermined position, the anchoring device at the bottom is anchored;
3) Lifting the top of the pipe string to link the upper joints and the central pipe of the packers at all levels, driving the key to move upwards along the long round hole by the central pipe after the breakable part is broken, and simultaneously pushing the key sleeve to move upwards to extrude the rubber sleeve so as to expand the rubber sleeve to complete setting, thereby realizing multi-level packing;
4) Carrying out simultaneous mining operation: after the oil and water are separated by the underground separator, water flows into the inner cavity of the intermediate pipe from bottom to top through the first channel, then flows out of the string of pipe columns through the bridge-type channel, and is injected into the stratum; crude oil flows into an annular space between the outer pipe and the inner pipe of the oil outlet pipe column from the second passage and the oil passage from bottom to top, then flows out of the pipe column string through the oil hole, and is finally extracted;
5) When the string of the pipe column needs to be pulled out, the top of the string of the pipe column is firstly placed downwards, so that the upper joints and the central pipes of the packers at all levels are linked, the central pipes drive the keys to move downwards along the long round holes, meanwhile, the pressure of the key sleeves is relieved, the compressed rubber cylinders recover, deformation is eliminated, the rubber cylinders are separated from the inner wall of the sleeve, and deblocking is achieved.
Compared with the prior art, the invention has the following advantages:
the device is provided with a multi-stage prestress packer, and can perform setting simultaneously, so that multi-stage packing is realized; the packer of the device is sealed and unsealed by lifting and lowering the external pipe column, is convenient and reliable, and adopts prestress sealing; the device has two channels, namely an inner channel and an outer channel, and can respectively circulate two liquids such as oil, water and the like, so that the device is suitable for oil extraction processes of simultaneous injection and simultaneous production.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a packer and tubing;
FIG. 3 is a schematic view of the state of packer setting;
FIG. 4 is a cross-sectional view of the intermediate tube;
fig. 5 is a schematic diagram of a half-section structure of the oil outlet pipe column.
In the figure: 1. the oil pipe type oil pipe sealing device comprises a lower connector, 2, a central pipe, 3, an outer central pipe, 301, a long circular hole, 4, a key, 5, a key sleeve, 6, a rubber cylinder, 7, a spacer ring, 8, a positioning sleeve, 9, a breakable part, 10, an adjusting ring, 11, an upper connector, 12, an oil pipe, 13, a first channel, 14, a second channel, 15, a sealing ring, 16, a middle pipe, 1601, an oil path channel, 1602, a bridge channel, 17, an upper coupling, 18, an outer pipe, 1801, an oil through hole, 19, an inner pipe, 20 and a lower coupling.
Detailed Description
The invention is further illustrated below with reference to the figures and examples.
Example one
Referring to fig. 1-5, a pre-stressed packing integrated device with dual passages, includes a packer and tubing 12,
the packer comprises a lower joint 1, a central pipe 2, an outer central pipe 3, keys 4, a key sleeve 5, a rubber cylinder 6, a positioning sleeve 8, a breakable part 9, an adjusting ring 10 and an upper joint 11, wherein the outer central pipe 3 is slidably sleeved on the outer side of the central pipe 2, the lower end of the central pipe 2 is slidably arranged on the inner wall of the lower joint 1, four keys 4 are embedded in the middle of the central pipe, and the upper end of the central pipe is fixedly connected with the upper joint 11; the lower end of the outer central tube 3 is fixedly connected with the upper part of the lower joint 1, the middle part of the outer central tube is provided with four axial long round holes 301 which are used as sliding tracks of the four keys 4, and the upper end of the outer central tube is fixedly connected with the positioning sleeve 8; the key 4 is arranged in the long circular hole 301 in a sliding mode, the outer side of the lower portion of the upper joint 11 is fixedly connected with the adjusting ring 10, the adjusting ring 10 is connected with the positioning sleeve 8 through four breakable parts 9, the upper end of the key sleeve 5 is sleeved on the outer central tube 3 in a sliding mode, and the lower end of the key sleeve is fixedly connected with the four keys 4; a plurality of rubber cylinders 6 are sleeved on the outer central tube 3 between the positioning sleeve 8 and the key sleeve 5, and a spacer ring 7 is arranged between the rubber cylinders 6; when the breakable part 9 is not broken, the key 4 is positioned at the lower end of the oblong hole 301;
the oil pipe 12 is positioned in the inner cavity of the packer and is coaxially arranged; the inner cavity of the oil pipe 12 is a first passage 13, and the annular space between the oil pipe 12 and the packer is a second passage 14.
The packer is provided with a plurality of stages, and the plurality of stages of packers are connected in series up and down;
a plurality of axial oil passage channels 1601 are arranged in the pipe wall of the middle pipe 16, and a plurality of radial bridge-type channels 1602 communicated with the inner cavity are arranged in the middle of the middle pipe 16; the middle pipe 16 is connected between the two packers, the inner cavity of the middle pipe is communicated with a first channel 13 of the packer, and an oil passage 1601 of the middle pipe is communicated with a second channel 14 of the packer;
the oil outlet pipe column comprises an upper coupling 17, an outer pipe 18, an inner pipe 19 and a lower coupling 20, the upper end and the lower end of the outer pipe 18 are fixedly connected with the outer side of the lower part of the upper coupling 17 and the outer side of the upper part of the lower coupling 20 respectively, and the middle part of the outer pipe is provided with a plurality of radial oil through holes 1801; the inner tube 19 is positioned in the inner cavity of the outer tube 18, and the upper end of the inner tube is screwed on the inner wall of the upper coupling 17; the oil outlet pipe column is arranged at the upper end of the top packer, the lower hoop 20 of the oil outlet pipe column is in threaded connection with the upper joint 11 of the top packer, the inner pipe 19 of the oil outlet pipe column is hermetically sleeved at the upper end of the oil pipe 12 in the inner cavity of the top packer, and correspondingly, the annular space between the outer pipe 18 and the inner pipe 19 is communicated with the second channel 14 of the top packer.
The using method comprises the following steps:
1) Connecting an anchoring device at the bottom of the packing and isolating integrated device, and putting the device into a well;
2) After being lowered to the predetermined position, the anchoring device at the bottom is anchored;
3) Lifting the top of the pipe string to link the upper joints 11 and the central pipe 2 of the packers at all levels, after the breakable part 9 is broken, the central pipe 2 drives the key 4 to move upwards along the long circular hole 301, and simultaneously pushes the key sleeve 5 to move upwards to extrude the rubber sleeve 6, so that the rubber sleeve is expanded to complete setting, and thus multi-level packing is realized;
4) Carrying out simultaneous mining operation: after the oil and water are separated by the downhole separator, water flows into the inner cavity of the intermediate pipe 16 from the bottom up through the first channel 13, then flows out of the string of the pipe columns through the bridge-type channel 1602, and is injected into the stratum; crude oil flows into an annular space between the outer pipe 18 and the inner pipe 19 of the oil outlet pipe column from the second passage 14 and the oil passage 1601 from bottom to top, then flows out of the pipe column string through the oil hole 1801, and is finally produced;
5) When the string of the pipe column needs to be pulled out, the top of the string of the pipe column is firstly placed downwards, so that the upper joint 11 and the central pipe 2 of each-stage packer are linked, the central pipe 2 drives the key 4 to move downwards along the long circular hole 301, meanwhile, the pressure of the key sleeve 5 is relieved, the compressed rubber sleeve 6 is recovered, deformation is eliminated, the rubber sleeve is separated from the inner wall of the sleeve, and deblocking is realized.
The device is provided with a multi-stage prestress packer, and can perform setting simultaneously, so that multi-stage packing is realized; the packer of the device is convenient and reliable to seal and unseal by lifting and lowering the external pipe column, and adopts prestress sealing; the device has two channels inside and outside, can respectively circulate two liquids such as oil and water, and is suitable for oil extraction process of simultaneous injection and simultaneous extraction.
Example two
As a preferred embodiment of the present invention, the present embodiment optimizes the breakable part 9 on the basis of the first embodiment, specifically:
in this embodiment, the breakable part 9 is a snap pin, and the locating sleeve 8 is provided with four axial grooves for mounting the snap pin along the outer circumferential surface.
When setting, the upper joint 11 is lifted up, so that the adjusting ring 10 and the central pipe 2 are linked, and when the lifting force value is large enough, the tensile stress born by the snap pin is larger than the tensile limit, the snap pin is snapped.
EXAMPLE III
As a preferred embodiment of the present invention, the present embodiment adds a multi-stage seal on the basis of the second embodiment, specifically:
in the embodiment, the positioning sleeve 8 is sleeved outside the central tube 2 in a sliding and sealing manner, and a plurality of sealing rings 15 are embedded on the inner wall of the positioning sleeve; a plurality of sealing rings 15 are also embedded in the upper part of the inner wall of the lower joint 1 and the lower part of the inner wall of the inner pipe 19.
The arrangement of the multistage sealing ring 15 can improve the sealing performance of the device, and is favorable for prolonging the service life of the device.
The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention, and the contents of the changes still fall within the scope of the present invention.
Claims (6)
1. The utility model provides a prestressing force seals separates integrated device with binary channels which characterized in that: comprises a packer and an oil pipe,
the packer comprises a lower joint, a central pipe, an outer central pipe, a key sleeve, a rubber sleeve, a positioning sleeve, a breakable part, an adjusting ring and an upper joint, wherein the outer central pipe is slidably sleeved on the outer side of the central pipe, the lower end of the central pipe is slidably arranged on the inner wall of the lower joint, a plurality of keys are embedded in the middle of the central pipe, and the upper end of the central pipe is fixedly connected with the upper joint; the lower end of the outer central tube is fixedly connected with the upper part of the lower joint, the middle part of the outer central tube is provided with a plurality of axial long round holes which are used as sliding tracks of a plurality of keys, and the upper end of the outer central tube is fixedly connected with the positioning sleeve; the key is arranged in the long round hole in a sliding manner, the outer side of the lower part of the upper joint is fixedly connected with the adjusting ring, the adjusting ring is connected with the positioning sleeve through a plurality of breakable parts, the upper end of the key sleeve is sleeved on the outer central tube in a sliding manner, and the lower end of the key sleeve is fixedly connected with the plurality of keys; the rubber cylinders are sleeved on the outer central tube between the positioning sleeve and the key sleeve, and a spacer ring is arranged between the rubber cylinders; when the breakable part is not disconnected, the key is positioned at the lower end of the oblong hole;
the oil pipe is positioned in the inner cavity of the packer and is coaxially arranged; the inner cavity of the oil pipe is a first channel, and an annular space between the oil pipe and the packer is a second channel.
2. The pre-stressed packing integrated device with dual channels of claim 1, wherein: but the disconnected piece is the snap pin, be equipped with a plurality of axial grooves that are used for installing the snap pin on the locating sleeve along the excircle facial make-up.
3. The pre-stressed packing integrated device with two channels of claim 1, wherein: the positioning sleeve is sleeved outside the central tube in a sliding and sealing manner, and a plurality of sealing rings are embedded on the inner wall of the positioning sleeve; and a plurality of sealing rings are also embedded in the upper part of the inner wall of the lower joint.
4. The pre-stressed packing integrated device with two channels of claim 1, wherein: the packer is provided with a plurality of stages, and the plurality of stages of packers are connected in series from top to bottom;
a plurality of axial oil passage channels are arranged in the pipe wall of the middle pipe, and a plurality of radial bridge-type channels communicated with the inner cavity are arranged in the middle of the middle pipe; the middle pipe is connected between the two packers, the inner cavity of the middle pipe is communicated with a first channel of the packer, and an oil passage of the middle pipe is communicated with a second channel of the packer;
the oil outlet pipe column comprises an upper coupling, an outer pipe, an inner pipe and a lower coupling, the upper end and the lower end of the outer pipe are fixedly connected with the outer side of the lower part of the upper coupling and the outer side of the upper part of the lower coupling respectively, and the middle part of the outer pipe is provided with a plurality of radial oil through holes; the inner pipe is positioned in the inner cavity of the outer pipe, and the upper end of the inner pipe is installed on the inner wall of the upper coupling in a threaded mode; the oil outlet pipe column is arranged at the upper end of the top packer, the lower coupling of the oil outlet pipe column is in threaded connection with the upper joint of the top packer, the inner pipe of the oil outlet pipe column is sleeved at the upper end of an oil pipe in the inner cavity of the top packer in a sealing mode, and correspondingly, the annular space between the outer pipe and the inner pipe is communicated with the second channel of the top packer.
5. The pre-stressed packing integrated device with two channels of claim 4, wherein: and a plurality of sealing rings are embedded at the lower part of the inner wall of the inner pipe.
6. The use method of the prestress packing integrated device with the double channels based on the claims 1 and 4 is characterized in that: the method comprises the following steps:
1) Connecting an anchoring device at the bottom of the packing integration device, and running the device into a well;
2) After being lowered to the predetermined position, the anchoring device at the bottom is anchored;
3) Lifting the top of the pipe string to link the upper joints and the central pipe of the packers at all levels, driving the key to move upwards along the long round hole by the central pipe after the breakable part is broken, and simultaneously pushing the key sleeve to move upwards to extrude the rubber sleeve so as to expand the rubber sleeve to complete setting, thereby realizing multi-level packing;
4) Carrying out simultaneous mining operation: after the oil and water are separated by the underground separator, water flows into the inner cavity of the intermediate pipe from bottom to top through the first channel, then flows out of the string of pipe columns through the bridge-type channel, and is injected into the stratum; the crude oil flows into an annular space between the outer pipe and the inner pipe of the oil outlet pipe column from the second channel and the oil passage from bottom to top, then flows out of the pipe column string through the oil hole and is finally extracted;
5) When the string of the pipe column needs to be pulled out, the top of the string of the pipe column is firstly placed downwards, so that the upper joints and the central pipes of the packers at all levels are linked, the central pipes drive the keys to move downwards along the long round holes, meanwhile, the pressure of the key sleeves is relieved, the compressed rubber cylinders recover, deformation is eliminated, the rubber cylinders are separated from the inner wall of the sleeve, and deblocking is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210984462.6A CN115306344B (en) | 2022-08-17 | 2022-08-17 | Prestress packing integrated device with double channels and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210984462.6A CN115306344B (en) | 2022-08-17 | 2022-08-17 | Prestress packing integrated device with double channels and application method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN115306344A true CN115306344A (en) | 2022-11-08 |
| CN115306344B CN115306344B (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210984462.6A Active CN115306344B (en) | 2022-08-17 | 2022-08-17 | Prestress packing integrated device with double channels and application method thereof |
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| CN (1) | CN115306344B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115773086A (en) * | 2023-02-10 | 2023-03-10 | 山东圣颐石油技术开发有限公司 | Upper lifting type tension setting co-well injection and production system pipe column |
| CN115822508A (en) * | 2023-02-10 | 2023-03-21 | 山东圣颐石油技术开发有限公司 | Multi-stage hydraulic setting co-well injection and production system pipe column |
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| US20160123106A1 (en) * | 2013-07-26 | 2016-05-05 | Halliburton Energy Services, Inc. | Retrieval of compressed packers from a wellbore |
| CN206458397U (en) * | 2016-12-26 | 2017-09-01 | 中国石油天然气股份有限公司 | Packer for layering and separated layer water injection process pipe column |
| CN111485849A (en) * | 2019-01-25 | 2020-08-04 | 中国石油化工股份有限公司 | Casing hydraulic packer |
| CN112709557A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Safe and long-acting water injection string for offshore oil field and construction method |
| CN213331008U (en) * | 2020-09-15 | 2021-06-01 | 新疆康和达石油技术服务有限公司 | Mechanical self-checking packer |
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2022
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160123106A1 (en) * | 2013-07-26 | 2016-05-05 | Halliburton Energy Services, Inc. | Retrieval of compressed packers from a wellbore |
| CN206458397U (en) * | 2016-12-26 | 2017-09-01 | 中国石油天然气股份有限公司 | Packer for layering and separated layer water injection process pipe column |
| CN111485849A (en) * | 2019-01-25 | 2020-08-04 | 中国石油化工股份有限公司 | Casing hydraulic packer |
| CN112709557A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Safe and long-acting water injection string for offshore oil field and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115773086A (en) * | 2023-02-10 | 2023-03-10 | 山东圣颐石油技术开发有限公司 | Upper lifting type tension setting co-well injection and production system pipe column |
| CN115822508A (en) * | 2023-02-10 | 2023-03-21 | 山东圣颐石油技术开发有限公司 | Multi-stage hydraulic setting co-well injection and production system pipe column |
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| Publication number | Publication date |
|---|---|
| CN115306344B (en) | 2024-06-14 |
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