CN109944569B - Oil downhole operation tool - Google Patents
Oil downhole operation tool Download PDFInfo
- Publication number
- CN109944569B CN109944569B CN201910213318.0A CN201910213318A CN109944569B CN 109944569 B CN109944569 B CN 109944569B CN 201910213318 A CN201910213318 A CN 201910213318A CN 109944569 B CN109944569 B CN 109944569B
- Authority
- CN
- China
- Prior art keywords
- deblocking
- ring
- central tube
- water
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 210000001624 hip Anatomy 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 239000003129 oil well Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 5
- 238000003801 milling Methods 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 abstract description 4
- 230000001066 destructive effect Effects 0.000 abstract description 3
- 230000001965 increasing effect Effects 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000002250 absorbent Substances 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008961 swelling Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 235000019198 oils Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 239000002535 acidifier Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 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
- E21B33/127—Packers; Plugs with inflatable sleeve
- E21B33/1277—Packers; Plugs with inflatable sleeve characterised by the construction or fixation of the sleeve
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Piles And Underground Anchors (AREA)
- Earth Drilling (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to a petroleum downhole operation tool. The technical scheme is as follows: the upper central tube and the lower central tube are movably connected through a deblocking lining tube, the middle part of the deblocking lining tube is fixed on the upper central tube through an upper deblocking shear pin, the lower central tube is fixed through a lower deblocking shear pin, an upper baffle ring is fixed on the outer wall of the middle part of the upper central tube, an upper joint is arranged at the outer end of the upper central tube, a lower baffle ring is fixed on the outer wall of the middle part of the lower central tube, and a lower joint is arranged at the outer end of the lower central tube; the outer wall is processed with water-swelling rubber. The beneficial effects are that: according to the invention, the deblocking structure is designed, so that the shrinkage of the water-swelling rubber can be realized, deblocking can be realized, the condition that the water-swelling rubber cannot be pulled due to large resistance in well repair can be avoided, the drawing by forcibly increasing the pulling force can be avoided, and huge destructive force is generated on the stratum due to the pumping action of the packer; the problems of high cost and long operation period caused by the milling operation through the milling shoe are also avoided.
Description
Technical Field
The invention relates to a petroleum underground operation tool and a method, in particular to a deblocking type water swelling packer.
Background
The packer is a special tool for underground layered packing composed of steel body, packing part and control part, and is used in petroleum industry for meeting the requirements of oil-water well for certain technological purpose or oil layer technological measure. The packer comprises a self-sealing type, an expanding type, a compression type and a combined type structure, the application fields of the packer are different, when an open hole well and an oil well with a damaged sleeve are met, the four packers cannot achieve a sealing effect through mechanical seat sealing or hydraulic seat sealing, and the water-swelling packer developed in recent years can be adopted. At present, the existing water swelling packer is generally used for multiple layers and layers which cannot be hydraulically or mechanically set, and can be smoothly put into a well to realize water swelling.
For example, the chinese patent publication No. 202832366U, entitled "packer expandable in water when encountering oil", includes two tubing couplings respectively disposed at two ends of the packer, and the outer ends of the two tubing couplings are respectively connected to a tail pipe or a screen pipe; the two ends of the packer base body are respectively connected with the inner side ends of the two tubing couplings; one end of each limiting seat is fixed between the tubing coupling and the packer base body, and the other end of each limiting seat is provided with an embedded groove along the extension direction of the packer base body; and the two ends of the oil-water self-expansion rubber are respectively embedded into the oppositely arranged embedded grooves and fixed outside the packer matrix. Effectively prevent to meet the condition that oil meets water self-expanding formula rubber friction damage and tip outwards turned, strengthen sealed effect. It has the problems that: because there is always an oil-water mixture downhole, the packer is always inflated. When the well is repaired, the whole tubular column needs to be taken out, and the original water-swelling packer is always in a swelling state, so that the existing water-swelling packer has large resistance and cannot be pulled; if the pulling force is increased forcibly for drawing, the destructive force on the stratum is too large due to the pumping action of the packer, and even the original formed curing structure of the cross-linking agent, curing agent, acidifying agent, sand and the like injected into the stratum before is destroyed, thereby causing the waste well of the oil well seriously; another method is to mill the packer by means of a milling shoe, which has the problem of high cost, long cycle time and the tendency to damage the well wall or casing.
In addition, the length of the water-swelling rubber adopted by the existing water-swelling packer is generally short, and sometimes complete sealing cannot be realized; after the water-swellable rubber is lengthened, because the existing technology can not realize deblocking, the well repairing operation time is longer, and the possibility of wearing the well wall or the casing is higher, the packer with the lengthened water-swellable rubber is rarely adopted in actual production.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the deblocking type water-swelling packer which can solve the problem of shrinkage of water-swelling rubber and realize deblocking, can also enhance the sealing property of the water-swelling rubber and ensures the packing effect.
The invention provides an unsealable water-swelling packer, which adopts the technical scheme that: the water-swelling rubber sealing device comprises an upper connector (1), water-swelling rubber (2), an upper retaining ring (3), a deblocking liner tube (4), an upper deblocking shear pin (5), a lower deblocking shear pin (6), a lower retaining ring (7), a lower connector (8), an upper central tube (9) and a lower central tube (10), wherein the upper central tube (9) and the lower central tube (10) are movably connected through the deblocking liner tube (4), the middle part of the deblocking liner tube (4) is fixedly provided with the upper central tube (9) through the upper deblocking shear pin (5), the lower central tube (10) is fixedly provided through the lower deblocking shear pin (6), the upper retaining ring (3) is fixedly arranged on the outer wall of the middle part of the upper central tube (9), the outer end of the upper central tube (9) is provided with the upper connector (1), the lower retaining ring (7) is fixedly arranged on the outer wall of the middle part of the lower central tube (10), and the outer end of the lower; the outer walls of the upper central tube (9), the lower central tube (10), the deblocking lining tube (4), the upper retaining ring (3) and the lower retaining ring (7) are processed with water-swelling rubber (2).
Preferably, the inner of foretell last center tube (9) is equipped with deblocking ring (12), the both ends inboard of deblocking bushing pipe (4) be equipped with shoulder (11) and lower shoulder (14) respectively, the inner of center tube (10) is equipped with lower deblocking ring (13) down, last shoulder (11) and lower shoulder (14) of deblocking bushing pipe (4) respectively with last deblocking ring (12) of last center tube (9) and lower deblocking ring (13) cooperation of center tube (10) down.
Preferably, the outer edge of the upper shoulder (11) is provided with a convex outer steel ring (15) for being firmly matched with the upper deblocking stop ring (12), and the outer edge of the lower shoulder (14) is provided with a convex outer steel ring (15) for being firmly matched with the lower deblocking stop ring (13).
Preferably, the outer edges of the upper deblocking ring (12) and the lower deblocking ring (13) are respectively provided with a convex inner steel ring (16).
Preferably, the sections of the upper retaining ring (3) and the lower retaining ring (7) are in an isosceles trapezoid structure, the lower bottom of the upper retaining ring (3) is fixedly connected with the outer wall of the upper central tube (9), the lower bottom of the lower retaining ring (7) is fixedly connected with the outer wall of the lower central tube (10), and the inner cavities of the upper retaining ring (3) and the lower retaining ring (7) are in a hollow structure.
Preferably, the two waists of the upper retaining ring (3) and the lower retaining ring (7) are provided with communicating holes, the inner cavities of the upper retaining ring (3) and the lower retaining ring (7) are filled with water-absorbent resin, the water-absorbent resin is communicated with the water-swellable rubber (2), and the bulge (17) is formed after water swelling.
Preferably, the length of the deblocking lining pipe (4) is less than one third of the expansion length between the upper retaining ring (3) and the lower retaining ring (7).
The invention has the beneficial effects that: according to the invention, the deblocking structure is designed, so that the shrinkage of the water-swelling rubber can be realized, deblocking can be realized, the condition that the water-swelling rubber cannot be pulled due to large resistance in well repair can be avoided, the drawing by forcibly increasing the pulling force can be avoided, and huge destructive force is generated on the stratum due to the pumping action of the packer; the problems of high cost and long operation period caused by the milling operation through the milling shoe are also avoided;
according to the invention, the upper retaining ring and the lower retaining ring are arranged, and the cavity is filled with the water-absorbent resin, so that when water is expanded, the water-swellable rubber is extruded along the two waist directions to form the bulge, thereby enhancing the sealing property of the water-swellable rubber and avoiding the problem of poor sealing caused by uneven expansion;
the invention drives the water-swelling rubber to narrow by matching the deblocking liner tube with the shearing pin and connecting the deblocking liner tube with the upper and lower central tubes, so that the acting force between the packer and the well wall is greatly reduced, the pumping action in the lifting process is eliminated, and the damage to the solidification structure of the stratum is avoided;
furthermore, the length design of deblocking bushing pipe has certain requirement, and the length of deblocking distance is less than the third that expands length between last fender ring and the lower fender ring specifically says so, avoids meeting the condition that water inflation rubber was broken by the stretch, keeps off the ring and also plays the auxiliary action from top to bottom moreover to guaranteed that the packer lifts the completion on the whole.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a first step of deblocking according to the present invention;
FIG. 3 is a schematic diagram of a second step of deblocking according to the present invention
FIG. 4 is an enlarged schematic view of a first embodiment of the release liner at the shear pin;
FIG. 5 is an enlarged schematic view of a second embodiment of the release liner at the shear pin;
FIG. 6 is an enlarged view of the lower retainer ring prior to expansion;
FIG. 7 is an enlarged view of the lower retainer ring after expansion;
in the upper diagram: the water-swellable rubber sealing ring comprises an upper connector 1, water-swellable rubber 2, an upper retaining ring 3, an unsealing liner tube 4, an upper unsealing shear pin 5, a lower unsealing shear pin 6, a lower retaining ring 7, a lower connector 8, an upper central tube 9, a lower central tube 10, an upper shoulder 11, an upper unsealing retaining ring 12, a lower unsealing retaining ring 13, a lower shoulder 14, an outer steel ring 15, an inner steel ring 16, a bulge 17 and a communicating hole 7.1.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to fig. 4, an upper deblocking ring 12 is arranged at the inner end of an upper central tube 9, an upper shoulder 11 and a lower shoulder 14 are respectively arranged on the inner sides of two ends of a deblocking lining tube 4, a lower deblocking ring 13 is arranged at the inner end of a lower central tube 10, and the upper shoulder 11 and the lower shoulder 14 of the deblocking lining tube 4 are respectively matched with the upper deblocking ring 12 of the upper central tube 9 and the lower deblocking ring 13 of the lower central tube 10.
Referring to the attached drawing 6, the cross sections of an upper retaining ring 3 and a lower retaining ring 7 of the present invention are in an isosceles trapezoid structure, the lower bottom of the upper retaining ring 3 is fixedly connected with the outer wall of an upper central tube 9, the lower bottom of the lower retaining ring 7 is fixedly connected with the outer wall of a lower central tube 10, and the inner cavities of the upper retaining ring 3 and the lower retaining ring 7 are in a hollow structure.
Go up and keep off two waists of ring 3 and lower fender ring 7 and be equipped with intercommunicating pore 7.1, keep off the inner chamber packing of ring 3 and lower fender ring 7 at last and have water-absorbent resin, with water-absorbent resin and water-swellable rubber 2 intercommunication, form the swell after the water-swellable protruding 17 to strengthen the leakproofness of water-swellable rubber, avoided the not good problem of sealing that inhomogeneous inflation appears.
In addition, the length of the deblocking lining pipe 4 is less than one third of the expansion length between the upper retaining ring 3 and the lower retaining ring 7, the situation that the water-swelling rubber is broken by pulling is avoided, and the upper retaining ring and the lower retaining ring also play an auxiliary role, so that the whole packer is lifted.
During deblocking, referring to the attached drawings 2 and 3, an upper deblocking shear pin 5 and a lower deblocking shear pin 6 are sequentially sheared, expanded water-swelling rubber is continuously narrowed and thinned in the upward moving process of the deblocking liner tube 4, then the expanded pressure is released, and when the upper blocking ring and the lower blocking ring are lifted in addition, the water-swelling rubber is supported by the upper blocking ring and the lower blocking ring, so that the whole packer is effectively guaranteed to be lifted.
The invention provides a using method of a releasable water-swelling packer, which adopts the technical scheme that the using method comprises the following steps:
firstly, assembling a deblocking type water-swelling packer, which comprises an upper joint 1, water-swelling rubber 2, an upper blocking ring 3, a deblocking liner pipe 4, an upper deblocking shear pin 5, a lower deblocking shear pin 6, a lower blocking ring 7, a lower joint 8, an upper central pipe 9 and a lower central pipe 10, wherein the upper central pipe 9 and the lower central pipe 10 are movably connected through the deblocking liner pipe 4, the middle part of the deblocking liner pipe 4 is fixedly provided with the upper central pipe 9 through the upper deblocking shear pin 5, the lower central pipe 10 is fixedly provided with the lower deblocking shear pin 6, the outer wall of the middle part of the upper central pipe 9 is fixedly provided with the upper blocking ring 3, the outer end of the upper central pipe 9 is provided with the upper joint 1, the outer wall of the middle part of the lower central pipe 10 is fixedly provided with the lower blocking ring 7, and the outer end of the lower central pipe; the outer walls of the upper central tube 9, the lower central tube 10, the deblocking lining tube 4, the upper baffle ring 3 and the lower baffle ring 7 are processed with water-swellable rubber 2;
secondly, the device is put into a preset position to be sealed in a barefoot well or a sleeve, the water-swellable rubber 2 begins to swell when meeting water, the upper retaining ring and the lower retaining ring are filled with water-absorbent resin due to the fact that the inner parts of the upper retaining ring and the lower retaining ring are respectively provided with communicating holes, the water-absorbent resin drives the water-swellable rubber 2 to further swell when meeting water, a bulge 17 is formed, and the sealing effect on the well wall is further enhanced;
thirdly, when the well is repaired and is unsealed, the upper central tube 9 is lifted, the upper central tube 9 moves upwards and cuts the upper unsealing shear pin, the upper central tube 9 continues to move upwards, when the upper unsealing stop ring 12 moves upwards to the upper shoulder 11 of the unsealing liner tube 4, the upper central tube 9 drives the unsealing liner tube 4 to move upwards, the lower unsealing shear pin 6 is cut, the unsealing liner tube 4 continues to move upwards, and after the lower shoulder 14 contacts the lower unsealing stop ring 13, the unsealing liner tube 4 stops moving upwards; at this moment, go up and keep a deblocking distance between center tube 9 and the lower center tube 10, and meet water inflation rubber 2 and be pulled open the length of a deblocking distance, meet water inflation rubber 2's thickness and narrow, and then make the protruding 17 pressure of swell obtain releasing, but whole deblocking meets water inflation packer continues to lift to the well head, realizes the deblocking, specifically refers to fig. 2 and fig. 3.
Preferably, in the second step, the cavities of the upper and lower retaining rings are filled with water-absorbent resin, and the cross sections of the upper and lower retaining rings are isosceles trapezoids, so that when water is expanded, the water-swellable rubber 2 is extruded along the directions of the two waists to form the bulge 17.
Preferably, the cavities of the upper and lower baffle rings are filled with water-absorbing resin, the cross sections of the upper and lower baffle rings are isosceles triangles, and when the water-absorbing expansion is carried out, the water-swellable rubber 2 is extruded along the directions of the two sides to form the bulge 17.
In embodiment 2, referring to fig. 5, the outer edge of the upper shoulder 11 of the present invention is provided with a convex outer steel ring 15 for firmly cooperating with the upper deblocking ring 12, and the outer edge of the lower shoulder 14 is provided with a convex outer steel ring 15 for firmly cooperating with the lower deblocking ring 13; the outer edges of the upper deblocking ring 12 and the lower deblocking ring 13 are respectively provided with a convex inner steel ring 16, so that the connection reliability of the deblocking liner tube and the upper and lower central tubes can be better guaranteed, and the deblocking failure caused by falling off is avoided.
In embodiment 3, the cavities of the upper and lower retainer rings are filled with water-absorbent resin, the cross sections of the upper and lower retainer rings are isosceles triangles, and when the water-swellable rubber 2 swells after absorbing water, the water-swellable rubber is extruded along the directions of two edges to form the bulge 17.
The above description is only a few of the preferred embodiments of the present invention, and any person skilled in the art may modify the above-described embodiments or modify them into equivalent ones. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.
Claims (5)
1. An oil downhole operation tool, characterized by: the water-swelling rubber sealing device comprises an upper connector (1), water-swelling rubber (2), an upper retaining ring (3), a deblocking liner tube (4), an upper deblocking shear pin (5), a lower deblocking shear pin (6), a lower retaining ring (7), a lower connector (8), an upper central tube (9) and a lower central tube (10), wherein the upper central tube (9) and the lower central tube (10) are movably connected through the deblocking liner tube (4), the middle part of the deblocking liner tube (4) is fixedly provided with the upper central tube (9) through the upper deblocking shear pin (5), the lower central tube (10) is fixedly provided through the lower deblocking shear pin (6), the upper retaining ring (3) is fixedly arranged on the outer wall of the middle part of the upper central tube (9), the outer end of the upper central tube (9) is provided with the upper connector (1), the lower retaining ring (7) is fixedly arranged on the outer wall of the middle part of the lower central tube (10), and the outer end of the lower; the outer walls of the upper central tube (9), the lower central tube (10), the deblocking lining tube (4), the upper baffle ring (3) and the lower baffle ring (7) are processed with water-swellable rubber (2);
the cross sections of the upper baffle ring (3) and the lower baffle ring (7) are of isosceles trapezoid structures, the lower bottom of the upper baffle ring (3) is fixedly connected with the outer wall of the upper central tube (9), the lower bottom of the lower baffle ring (7) is fixedly connected with the outer wall of the lower central tube (10), and the inner cavities of the upper baffle ring (3) and the lower baffle ring (7) are of hollow structures;
go up and keep off ring (3) and keep off two waists of ring (7) down and be equipped with intercommunicating pore (7.1), keep off the inner chamber packing that ring (3) and ring (7) are kept off down at last and have water-absorbing resin, with water-absorbing resin and water-swelling rubber (2) intercommunication, water-swelling rubber (2) form bulging arch (17) after water-swelling.
2. The oil downhole tool of claim 1, wherein: go up the inner of center tube (9) be equipped with deblocking and keep off ring (12), the both ends inboard of deblocking bushing pipe (4) be equipped with shoulder (11) and lower shoulder (14) respectively, the inner of center tube (10) is equipped with lower deblocking and keeps off ring (13) down, last shoulder (11) and lower shoulder (14) of deblocking bushing pipe (4) respectively with the last deblocking of last center tube (9) keep off ring (12) and lower deblocking of center tube (10) keep off ring (13) cooperation down.
3. The oil well working tool according to claim 2, wherein: go up the outward flange of convex shoulder (11) be equipped with convex outer steel ring (15) for with last deblocking stop ring (12) firm cooperation, the outward flange of lower convex shoulder (14) is equipped with convex outer steel ring (15) for with lower deblocking stop ring (13) firm cooperation.
4. The oil well working tool according to claim 2, wherein: the outer edges of the upper deblocking ring (12) and the lower deblocking ring (13) are respectively provided with a convex inner steel ring (16).
5. The oil downhole tool of claim 1, wherein: the length of the deblocking lining pipe (4) is less than one third of the expansion length between the upper retaining ring (3) and the lower retaining ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910213318.0A CN109944569B (en) | 2017-11-27 | 2017-11-27 | Oil downhole operation tool |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711204004.1A CN107724992B (en) | 2017-11-27 | 2017-11-27 | One kind can desealed water-swelling packer |
| CN201910213318.0A CN109944569B (en) | 2017-11-27 | 2017-11-27 | Oil downhole operation tool |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711204004.1A Division CN107724992B (en) | 2017-11-27 | 2017-11-27 | One kind can desealed water-swelling packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109944569A CN109944569A (en) | 2019-06-28 |
| CN109944569B true CN109944569B (en) | 2020-12-25 |
Family
ID=61219548
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711204004.1A Active CN107724992B (en) | 2017-11-27 | 2017-11-27 | One kind can desealed water-swelling packer |
| CN201910213318.0A Active CN109944569B (en) | 2017-11-27 | 2017-11-27 | Oil downhole operation tool |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711204004.1A Active CN107724992B (en) | 2017-11-27 | 2017-11-27 | One kind can desealed water-swelling packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN107724992B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915068B (en) * | 2019-03-12 | 2020-07-07 | 煤科集团沈阳研究院有限公司 | Automatic water-absorbing plugging and hole-sealing device and method for near-horizontal coal seam gas extraction drill hole |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2049262U (en) * | 1989-01-24 | 1989-12-13 | 大庆石油管理局采油工艺研究所 | Small diameter compression packer |
| CN2318391Y (en) * | 1997-09-23 | 1999-05-12 | 陈文华 | Packer capable of cleaning well and anti-differential-pressure |
| US6202742B1 (en) * | 1998-11-03 | 2001-03-20 | Halliburton Energy Services, Inc. | Pack-off device for use in a wellbore having a packer assembly located therein |
| NO308424B1 (en) * | 1998-12-10 | 2000-09-11 | Reslink As | Device for tools for setting a radially expandable gasket |
| CN2841949Y (en) * | 2005-06-29 | 2006-11-29 | 中国石化胜利油田有限公司现河采油厂 | Reverse differential pressure anchor packer |
| CN101165310B (en) * | 2006-10-18 | 2011-08-03 | 刘宜贵 | One-way slip hydraulic base sealed packer |
| CN201420529Y (en) * | 2009-01-05 | 2010-03-10 | 顾明祥 | Removable bridge plug |
| CN201650202U (en) * | 2010-03-18 | 2010-11-24 | 孔利生 | Water-swelling packer |
| CA2803032A1 (en) * | 2010-06-22 | 2011-12-29 | Inflatable Packers International Pty Ltd | Inflatable packer and control valve |
| CN102322237B (en) * | 2011-06-14 | 2014-01-15 | 中国石油天然气股份有限公司 | Self-inflatable packer |
| CN202832366U (en) * | 2012-09-19 | 2013-03-27 | 中国石油天然气股份有限公司 | Packer capable of expanding when encountering oil and water |
| CN202882841U (en) * | 2012-09-28 | 2013-04-17 | 中国石油化工股份有限公司 | Pipe external packer capable of being self-expandable when encountering water or oil |
| CN104563955B (en) * | 2013-10-27 | 2017-02-15 | 中国石油化工集团公司 | Steel pipe hydraulic expansion type external casing packer |
| US9447653B1 (en) * | 2014-03-16 | 2016-09-20 | Elie Robert Abi Aad | Inflatable packer |
| CN204186343U (en) * | 2014-10-27 | 2015-03-04 | 诺斯石油工具(天津)有限公司 | A kind of chance liquid Self-expandable packer |
| CN205422628U (en) * | 2016-03-13 | 2016-08-03 | 河北鸿凯石油科技有限公司 | But water inflation packer is met to backwash well |
| CN206418996U (en) * | 2016-12-15 | 2017-08-18 | 中国石油集团川庆钻探工程有限公司钻采工程技术研究院 | One kind water suction Self-expandable packer |
| CN107100581A (en) * | 2017-06-01 | 2017-08-29 | 中国石油集团渤海钻探工程有限公司 | A kind of big orifice combined type Self-expandable packer |
-
2017
- 2017-11-27 CN CN201711204004.1A patent/CN107724992B/en active Active
- 2017-11-27 CN CN201910213318.0A patent/CN109944569B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109944569A (en) | 2019-06-28 |
| CN107724992B (en) | 2019-06-25 |
| CN107724992A (en) | 2018-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108166965B (en) | Sand blasting perforation, fracturing and packing integrated device | |
| CA2904531C (en) | Big gap element sealing system | |
| CN107724993B (en) | It is a kind of can desealed water-swelling packer application method | |
| US2275935A (en) | Well packer apparatus | |
| CN110735614B (en) | Fracturing plugging bridge plug and setting and unsetting method thereof | |
| CN109667565B (en) | Bare hole anchoring device and process method | |
| CN110725660B (en) | Multistage releasable water-swelling packer and method | |
| CN111255412A (en) | Salvageable mechanical plugging bridge plug for emergency and method | |
| CN109944569B (en) | Oil downhole operation tool | |
| US20200224517A1 (en) | Apparatus for forming tubular connections and method of use | |
| CN112127827A (en) | Large-drift-diameter packer | |
| CN109098684B (en) | Expansion type bottom sealing dragging fracturing packer and construction method thereof | |
| CN112392432B (en) | Multifunctional plugging bridge plug | |
| CN108060901B (en) | Release mechanism for open hole patching tool of equal-well-diameter expansion casing | |
| CN112855067A (en) | Mechanical expansion type leakage stopping tool and leakage stopping method thereof | |
| CN210858645U (en) | Packer | |
| CN106481324B (en) | Hydraulic control self-unsealing type staged fracturing string | |
| CN104453763B (en) | Sealing anchoring member for casing patching and mounting device thereof | |
| CN110847846A (en) | Well washing protection integrated packer and method | |
| CN113123753A (en) | Soluble easy-to-drill open hole packer and using method thereof | |
| CN217106934U (en) | Composite rubber sleeve packer and horizontal well segmented water exploration pipe column comprising same | |
| CN217558291U (en) | Expanding packer with double-rubber-barrel structure | |
| CN211397539U (en) | Removable steel wire operation bridge plug | |
| CN114165188B (en) | Packer and use method thereof | |
| CN112832707B (en) | Hydraulic expansion type leakage stopping tool and leakage stopping method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201207 Address after: 276599 Chengbei Industrial Park, Juxian County, Rizhao City, Shandong Province Applicant after: SHANDONG FULAICHUN BIOCHEMISTRY Co.,Ltd. Address before: 257000 Shengli oil production plant of Shengli Oilfield, Dongying District, Dongying, Shandong Applicant before: Li Ming |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |