CN113374438A - Hydraulic expansion type packer for oil well plugging and using method thereof - Google Patents
Hydraulic expansion type packer for oil well plugging and using method thereof Download PDFInfo
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- CN113374438A CN113374438A CN202110712972.3A CN202110712972A CN113374438A CN 113374438 A CN113374438 A CN 113374438A CN 202110712972 A CN202110712972 A CN 202110712972A CN 113374438 A CN113374438 A CN 113374438A
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- Prior art keywords
- connecting pipe
- fixedly connected
- connecting block
- upper joint
- oil well
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- 239000003129 oil well Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000002146 bilateral effect Effects 0.000 claims abstract 2
- 238000001125 extrusion Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- 230000006872 improvement Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010008 shearing Methods 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
- 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
- E21B33/1265—Packers; Plugs with fluid-pressure-operated elastic cup or skirt with mechanical slips
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/06—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
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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)
- Pipe Accessories (AREA)
Abstract
The invention discloses a hydraulic expansion type packer for oil well plugging and a using method thereof, wherein the hydraulic expansion type packer comprises an upper joint, a connecting pipe is movably connected in the upper joint, clamping grooves are symmetrically formed in the side wall of the upper joint in the bilateral direction, two clamping blocks matched with the clamping grooves are fixedly connected to the side wall of the connecting pipe, the clamping grooves are movably connected with the clamping blocks, a through hole is formed in the bottom surface of the upper joint, a plurality of jacking mechanisms are arranged on the bottom surface of an inner cavity of the upper joint, an annular plate is movably connected to the inner wall of the upper joint and is in contact arrangement with the connecting pipe, a connecting block is fixedly connected to the bottom surface of the upper joint, a plurality of upper slips which are uniformly distributed are arranged on the bottom surface of the connecting block, and the connecting block is in a circular tube shape.
Description
Technical Field
The invention relates to the technical field of packers, in particular to a hydraulic expansion type packer for oil well plugging and a using method thereof.
Background
The packer is used for layering in an oil production process, an oil production channel is designed on the packer, and when setting, the piston sleeve moves upwards, and the oil production channel is opened; after the setting, the upper layer pressure acts on the balance piston to push the rubber cylinder upwards, so that the deblocking pin is prevented from shearing force; when deblocking, the deblocking pin is cut off by the friction force of the rubber sleeve and the sleeve, the piston sleeve moves downwards to close the oil extraction channel, thereby reducing the water plugging construction process of the oil well packer, conveniently realizing the operation without killing the well and blowing, bidirectionally bearing high pressure and having long service life.
In the use process of the hydraulic expansion type packer in the prior art, most of the hydraulic expansion type packers cannot be conveniently connected with an external conveying pipeline, the steps are complex during installation, the exploitation efficiency is affected, and when the packer is installed in an exploitation pipeline, certain intervals exist between the packer and the side wall of the pipeline, pressure detection data are prone to being inaccurate, so that the installation is inconvenient and the use effect is poor, and therefore the hydraulic expansion type packer for oil well plugging and the use method thereof are provided.
Disclosure of Invention
The invention aims to overcome the defects of inconvenient installation and poor use effect in the prior art, and provides a hydraulic expansion type packer for oil well plugging and a use method thereof. The hydraulic expansion type packer for oil well plugging and the using method thereof have the characteristics of convenience in installation, good using effect and the like.
In order to achieve the purpose, the invention provides the following technical scheme: a hydraulic expansion type packer for plugging an oil well comprises an upper joint, wherein a connecting pipe is movably connected in the upper joint, clamping grooves are symmetrically formed in the side wall of the upper joint in the left-right direction, two clamping blocks matched with the clamping grooves are fixedly connected to the side wall of the connecting pipe, the clamping grooves are movably connected with the clamping blocks, a through hole is formed in the bottom surface of the upper joint, a plurality of jacking mechanisms are arranged on the bottom surface of an inner cavity of the upper joint, an annular plate is movably connected to the inner wall of the upper joint and is in contact with the connecting pipe, a connecting block is fixedly connected to the bottom surface of the upper joint, a plurality of upper slips which are uniformly distributed are arranged on the bottom surface of the connecting block, the connecting block is arranged in a circular tube shape, a plurality of extrusion mechanisms are arranged in the inner cavity of the connecting block, a circular groove is formed in the side wall of the connecting block, air bags are arranged in the circular groove, and air inlet pipes are fixedly connected to the side wall of the air bags, the air inlet pipe penetrates through the connecting block and is movably connected with the connecting block.
Preferably, the tight mechanism in top includes a fixed section of thick bamboo, a fixed section of thick bamboo bottom all with top connection inner chamber bottom surface fixed connection, the equal fixedly connected with first spring in a fixed section of thick bamboo inner chamber bottom surface, the equal fixedly connected with movable rod in first spring top, the movable rod top all with annular plate fixed connection.
Preferably, the extrusion mechanism includes the baffle, the baffle all with connecting block inner wall swing joint, the equal fixedly connected with second spring in baffle bottom surface, the second spring other end all with connecting block inner wall fixed connection, the equal fixedly connected with horizontal pole of gasbag lateral wall, the horizontal pole other end all runs through the connecting block and rather than swing joint, the horizontal pole is close to the equal swing joint of connecting block center one end and has the movable pulley.
Preferably, the side wall of the upper joint is fixedly connected with a limiting plate, and the air inlet pipe penetrates through the limiting plate and is movably connected with the limiting plate.
Preferably, the annular plate lateral wall fixedly connected with stopper, the top connection inner wall seted up with stopper assorted spacing groove, stopper and spacing groove swing joint.
Preferably, the top surface of the annular plate is fixedly connected with a positioning ring, the bottom surface of the connecting pipe is provided with a positioning groove, and the positioning ring is movably connected with the positioning groove.
Preferably, the top surface of the annular plate and the bottom surface of the connecting pipe are both fixedly connected with sealing gaskets.
A use method of a hydraulic expansion type packer for oil well plugging comprises the following steps:
s1: firstly, mounting a connecting block at a proper position, then placing a connecting pipe in an upper connector, and simultaneously clamping a clamping block in a clamping groove;
s2: pressing the connecting pipe downwards, compressing the first spring through the annular plate, and rotating the connecting pipe to a proper angle after the connecting pipe is pressed downwards to a proper position;
s3: then the connecting pipe is loosened, the clamping block is driven to be clamped into one end of the clamping groove through resilience of the first spring, and meanwhile, the annular plate is tightly attached to the connecting pipe, so that the connecting pipe is convenient to install and operate;
s4: then, proper amount of gas is injected into the air bag through an external device by utilizing the gas inlet pipe, the internal pressure of the connecting block is increased in the mining process, so that the internal oil gas jacks up the baffle plate,
s5: after the baffle jack-up that makes progress, the second spring is tensile simultaneously, and the horizontal pole is withstood to the lateral motion to the baffle to the tight gasbag of top contacts with the pipeline lateral wall, increases its pipeline inside seal nature, can effectual improvement its result of use.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the technical scheme, the upper joint, the connecting pipe, the annular plate and the jacking mechanism are matched with one another, so that the connecting pipe can be conveniently and rapidly installed, the complexity of traditional pipeline connection is reduced, and the installation efficiency of the connecting pipe can be effectively improved;
2. this technical scheme utilizes connecting block internal pressure through mutually supporting between connecting block, gasbag and the extrusion mechanism for gasbag and exploitation pipeline lateral wall closely laminate, reinforcing pipeline internal seal nature.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
fig. 4 is an enlarged view of fig. 2 at B.
Reference numbers in the figures: 1. an upper joint; 2. a connecting pipe; 3. a card slot; 4. a clamping block; 5. a jacking mechanism; 51. a fixed cylinder; 52. a first spring; 53. a movable rod; 6. an annular plate; 7. connecting blocks; 8. the slips are put on; 9. an extrusion mechanism; 91. a baffle plate; 92. a second spring; 93. a cross bar; 94. a movable wheel; 10. an annular groove; 11. an air bag; 12. an air inlet pipe; 13. a through hole; 14. a limiting plate; 15. a limiting block; 16. a limiting groove; 17. a positioning ring; 18. positioning a groove; 19. and a gasket.
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.
Referring to fig. 1-4, the present invention provides a technical solution: a hydraulic expansion type packer for plugging an oil well comprises an upper joint 1, a connecting pipe 2 is movably connected in the upper joint 1, clamping grooves 3 are symmetrically formed in the side wall of the upper joint 1 in the left-right direction, two clamping blocks 4 matched with the clamping grooves 3 are fixedly connected to the side wall of the connecting pipe 2, the clamping grooves 3 are movably connected with the clamping blocks 4, a through hole 13 is formed in the bottom surface of the upper joint 1, a plurality of jacking mechanisms 5 are arranged on the bottom surface of an inner cavity of the upper joint 1, an annular plate 6 is movably connected to the inner wall of the upper joint 1, a limiting block 15 is fixedly connected to the side wall of the annular plate 6, a limiting groove 16 matched with the limiting block 15 is formed in the inner wall of the upper joint 1, the limiting block 15 is movably connected with the limiting groove 16, a positioning ring 17 is fixedly connected to the top surface of the annular plate 6, a positioning groove 18 is formed in the bottom surface of the connecting pipe 2, the positioning ring 17 is movably connected with the positioning groove 18, the annular plate 6 is in contact with the connecting pipe 2, sealing gaskets 19 are fixedly connected to the top surface of the annular plate 6 and the bottom surface of the connecting pipe 2, the bottom surface of the upper connector 1 is fixedly connected with a connecting block 7, the bottom surface of the connecting block 7 is provided with a plurality of upper slips 8 which are uniformly distributed, the connecting block 7 is arranged in a circular tube shape, the inner cavity of the connecting block 7 is provided with a plurality of extrusion mechanisms 9, the side wall of the connecting block 7 is provided with an annular groove 10, air bags 11 are arranged in the annular grooves 10, the side wall of each air bag 11 is fixedly connected with an air inlet pipe 12, each air inlet pipe 12 penetrates through the connecting block 7 and is movably connected with the same, the side wall of the upper connector 1 is fixedly connected with a limiting plate 14, and each air inlet pipe 12 penetrates through the limiting plate 14 and is movably connected with the same;
the jacking mechanism 5 comprises a fixed cylinder 51, the bottom end of the fixed cylinder 51 is fixedly connected with the bottom surface of the inner cavity of the upper joint 1, the bottom surfaces of the inner cavities of the fixed cylinder 51 are fixedly connected with a first spring 52, the top ends of the first springs 52 are fixedly connected with movable rods 53, and the top ends of the movable rods 53 are fixedly connected with the annular plate 6, so that the connecting pipe 2 can be conveniently installed and operated by mutual cooperation among the upper joint 1, the connecting pipe 2, the annular plate 6 and the jacking mechanism 5, the complexity of traditional pipeline connection is reduced, and the installation efficiency of the traditional pipeline connection can be effectively improved;
A use method of a hydraulic expansion type packer for oil well plugging comprises the following steps:
s1: firstly, installing a connecting block 7 at a proper position, then placing a connecting pipe 2 in an upper connector 1, and simultaneously clamping a clamping block 4 in a clamping groove 3;
s2: pressing the connection pipe 2 downwards again, compressing the first spring 52 through the annular plate 6, and rotating the connection pipe 2 to a proper angle after the connection pipe 2 is pressed downwards to a proper position;
s3: then, the connecting pipe 2 is loosened, the first spring 52 rebounds to drive the clamping block 4 to be clamped into one end of the clamping groove 3, and meanwhile, the annular plate 6 is tightly attached to the connecting pipe 2, so that the connecting pipe 2 is convenient to install and operate;
s4: then, a proper amount of gas is injected into the air bag 11 through an external device by using the gas inlet pipe 12, during the exploitation process, the internal pressure of the connecting block 7 is increased, so that the internal oil gas jacks up the baffle plate 91,
s5: after the baffle 91 jacks up, the second spring 92 stretches, the baffle 91 jacks the cross rod 93 to move outwards, and the air bag 11 is tightly propped to be in contact with the side wall of the pipeline, so that the sealing performance inside the pipeline is improved, and the using effect of the pipeline can be effectively improved.
The working principle is as follows: when the technical scheme is used, firstly, the connecting block 7 is installed on a proper position, then the connecting pipe 2 is placed in the upper joint 1, meanwhile, the clamping block 4 is clamped into the clamping groove 3, the connecting pipe 2 is pressed downwards, the first spring 52 is compressed through the annular plate 6, after the connecting pipe 2 is pressed downwards to a proper position, the connecting pipe 2 is rotated to a proper angle, the connecting pipe 2 is loosened, the first spring 52 rebounds to drive the clamping block 4 to be clamped into one end of the clamping groove 3, meanwhile, the annular plate 6 is tightly attached to the connecting pipe 2, convenient installation operation of the connecting pipe 2 is realized, then, a proper amount of gas is injected into the air bag 11 through the air inlet pipe 12 through external equipment, in the mining process, the internal pressure of the connecting block 7 is increased, the internal oil gas upwards jacks up the baffle 91, meanwhile, the second spring 92 stretches, the baffle 91 jacks up the cross rod 93 to move outwards, and jacks up the air bag 11 to be contacted with the side wall of the pipeline, the internal sealing performance of the pipeline is improved, and the using effect of the pipeline can be effectively improved.
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. The utility model provides a be used for oil well shutoff to use hydraulic pressure inflation formula packer, includes top connection (1), its characterized in that: the connecting pipe (2) is movably connected in the upper joint (1), clamping grooves (3) are symmetrically formed in the side wall of the upper joint (1) in the bilateral direction, two clamping blocks (4) matched with the clamping grooves (3) are fixedly connected to the side wall of the connecting pipe (2), the clamping grooves (3) are movably connected with the clamping blocks (4), through holes (13) are formed in the bottom surface of the upper joint (1), a plurality of jacking mechanisms (5) are arranged on the bottom surface of the inner cavity of the upper joint (1), an annular plate (6) is movably connected to the inner wall of the upper joint (1), the annular plate (6) is in contact with the connecting pipe (2), a connecting block (7) is fixedly connected to the bottom surface of the upper joint (1), a plurality of upper slips (8) which are uniformly distributed are arranged on the bottom surface of the connecting block (7), the connecting block (7) is in a circular tube shape, a plurality of extruding mechanisms (9) are arranged in the inner cavity of the connecting block (7), annular groove (10) have been seted up to connecting block (7) lateral wall, all be provided with gasbag (11) in annular groove (10), gasbag (11) lateral wall fixedly connected with intake pipe (12), intake pipe (12) through connection block (7) and rather than swing joint.
2. The hydraulic inflatable packer for plugging an oil well, according to claim 1, wherein: the tight mechanism in top (5) is including solid fixed cylinder (51), gu fixed cylinder (51) bottom all with top connection (1) inner chamber bottom surface fixed connection, gu fixed cylinder (51) the equal first spring of fixedly connected with in inner chamber bottom surface (52), the equal fixedly connected with movable rod (53) in first spring (52) top, movable rod (53) top all with annular plate (6) fixed connection.
3. The hydraulic inflatable packer for plugging an oil well, according to claim 1, wherein: extrusion mechanism (9) are including baffle (91), baffle (91) all with connecting block (7) inner wall swing joint, the equal fixedly connected with second spring (92) in baffle (91) bottom surface, the second spring (92) other end all with connecting block (7) inner wall fixed connection, the equal fixedly connected with horizontal pole (93) of gasbag (11) lateral wall, the horizontal pole (93) other end all runs through connecting block (7) and rather than swing joint, horizontal pole (93) are close to the equal swing joint of connecting block (7) center one end and have loose wheel (94).
4. The hydraulic inflatable packer for plugging an oil well, according to claim 1, wherein: the side wall of the upper joint (1) is fixedly connected with a limiting plate (14), and the air inlet pipe (12) penetrates through the limiting plate (14) and is movably connected with the limiting plate.
5. The hydraulic inflatable packer for plugging an oil well, according to claim 1, wherein: annular plate (6) lateral wall fixedly connected with stopper (15), top connection (1) inner wall seted up with stopper (15) assorted spacing groove (16), stopper (15) and spacing groove (16) swing joint.
6. The hydraulic inflatable packer for plugging an oil well, according to claim 1, wherein: annular plate (6) top surface fixedly connected with holding ring (17), constant head tank (18) have been seted up to connecting pipe (2) bottom surface, holding ring (17) and constant head tank (18) swing joint.
7. The hydraulic inflatable packer for plugging an oil well, according to claim 1, wherein: the top surface of the annular plate (6) and the bottom surface of the connecting pipe (2) are fixedly connected with sealing gaskets (19).
8. The use of the hydraulic inflatable packer for well plugging according to any of claims 1 to 7, comprising the steps of:
s1: firstly, a connecting block (7) is arranged at a proper position, then a connecting pipe (2) is placed in an upper connector (1), and meanwhile, a clamping block (4) is clamped in a clamping groove (3);
s2: pressing the connecting pipe (2) downwards, compressing the first spring (52) through the annular plate (6), and rotating the connecting pipe (2) to a proper angle after the connecting pipe (2) is pressed downwards to a proper position;
s3: then the connecting pipe (2) is loosened, the clamping block (4) is driven to be clamped into one end of the clamping groove (3) through rebounding of the first spring (52), and meanwhile the annular plate (6) is tightly attached to the connecting pipe (2), so that the connecting pipe (2) is convenient to install;
s4: then, proper amount of gas is injected into the air bag (11) through an external device by utilizing the gas inlet pipe (12), the internal pressure of the connecting block (7) is increased in the process of exploitation, so that the internal oil gas jacks up the baffle (91),
s5: after baffle (91) jack-up, second spring (92) are tensile simultaneously, and horizontal pole (93) are withstood to baffle (91) outside side motion to push up tight gasbag (11) and the contact of pipeline lateral wall, increase its pipeline inside leakproofness, can effectual improvement its result of use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110712972.3A CN113374438A (en) | 2021-06-25 | 2021-06-25 | Hydraulic expansion type packer for oil well plugging and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110712972.3A CN113374438A (en) | 2021-06-25 | 2021-06-25 | Hydraulic expansion type packer for oil well plugging and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113374438A true CN113374438A (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110712972.3A Withdrawn CN113374438A (en) | 2021-06-25 | 2021-06-25 | Hydraulic expansion type packer for oil well plugging and using method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN113374438A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030196795A1 (en) * | 2002-04-17 | 2003-10-23 | Andrew Kutac | Inflatable packer with prestressed bladder |
| CN210948579U (en) * | 2019-12-04 | 2020-07-07 | 杨小栋 | Underground oil testing packer |
| CN111927381A (en) * | 2020-08-18 | 2020-11-13 | 肖云东 | Hydraulic expansion type packer for plugging oil well |
| CN111927383A (en) * | 2020-09-17 | 2020-11-13 | 东营市正能石油科技有限公司 | Packer for water injection well of oil field |
| CN112983336A (en) * | 2021-05-17 | 2021-06-18 | 东营市海天自动化工程有限责任公司 | Combined integrated oil field packer |
-
2021
- 2021-06-25 CN CN202110712972.3A patent/CN113374438A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030196795A1 (en) * | 2002-04-17 | 2003-10-23 | Andrew Kutac | Inflatable packer with prestressed bladder |
| CN210948579U (en) * | 2019-12-04 | 2020-07-07 | 杨小栋 | Underground oil testing packer |
| CN111927381A (en) * | 2020-08-18 | 2020-11-13 | 肖云东 | Hydraulic expansion type packer for plugging oil well |
| CN111927383A (en) * | 2020-09-17 | 2020-11-13 | 东营市正能石油科技有限公司 | Packer for water injection well of oil field |
| CN112983336A (en) * | 2021-05-17 | 2021-06-18 | 东营市海天自动化工程有限责任公司 | Combined integrated oil field packer |
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Application publication date: 20210910 |