CN101555778A - External packer of high temperature pipe - Google Patents
External packer of high temperature pipe Download PDFInfo
- Publication number
- CN101555778A CN101555778A CN 200910084500 CN200910084500A CN101555778A CN 101555778 A CN101555778 A CN 101555778A CN 200910084500 CN200910084500 CN 200910084500 CN 200910084500 A CN200910084500 A CN 200910084500A CN 101555778 A CN101555778 A CN 101555778A
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- ring
- central tube
- high temperature
- piston
- external
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Abstract
The invention relates to an external packer of a high temperature pipe, comprising a coupling, a casing nipple, a central pipe and an upper joint; one end of the casing nipple and one end of the central pipe are fixedly connected or spin-connected by threads; the other end of the casing nipple and the coupling are fixedly connected or spin-connected by threads; the casing nipple, the upper joint sleeve and the central pipe are connected by threads; the external packer also comprises a high-temperature rubber barrel component and a bidirectional locking device; the high-temperature rubber barrel component and the bidirectional locking device are sleeved on the external surface of the central pipe; one end of the high-temperature rubber barrel component is contacted with the upper joint and the other end thereof is contacted with the bidirectional locking device. The external packer can divide longer horizontal well section of a thick oil horizontal well into a plurality of small sections mutually independent for independent operation, solves the problem that the employed well sections are not even; and simultaneously the inner through diameters of the external packer of the high temperature pipe and a screening pipe are consistent, thus being capable of leading a steam injection pipe column and other pipe columns to be down smoothly.
Description
Technical field
The present invention relates to the external packer of high temperature pipe that recover the oil in a kind of oil field, use at the completion scene.
Background technology
Utilize horizontal well to improve oil well productivity and recovery ratio, become a kind of cost-effective means and the approach of taping the latent power in oil field.Along with Oilfield developing, the quantity of horizontal well increases year by year, and needing the horizontal well of notes vapour exploitation also is to increase rapidly.At present, oil-field thick-oil horizontal well completion technology is taked modes such as barefoot completion, gravel pack completion, cutting seam sieve tube completion and well cementation perforation completion more, employing with upper type on the one hand because the horizontal segment of horizontal well is longer, on the other hand because there is anisotropy in stratum inhomogeneous the causing of deposition on the net horizontal section, so cause in steam injection process, steam can form the phenomenon of advancing by leaps and bounds in local well section, causes net horizontal section to inhale the unequal problem of vapour.
Summary of the invention
The object of the present invention is to provide a kind of external packer of high temperature pipe that can address the above problem.
The technical solution used in the present invention is:
A kind of external packer of high temperature pipe, comprise box cupling, casing nipple, central tube and top connection, one end of described casing nipple is fixedlyed connected with an end of described central tube or screw thread spins, the other end of described casing nipple is fixedlyed connected with described box cupling or screw thread spins, described top connection is nested with on the external surface of described casing nipple and described central tube junction, and fixedly connected or screw thread spins, also comprise high-temp glue cartridge module and bidirectional locking device, described high-temp glue cartridge module and described bidirectional locking device are enclosed within on the external surface of described central tube, one end of described high-temp glue cartridge module contacts with described top connection, and the other end contacts with described bidirectional locking device.
Described external packer of high temperature pipe also comprises adjustable ring and baffle ring A, described adjustable ring and described baffle ring A are enclosed within on the external surface of described central tube, described adjustable ring is provided with mutual corresponding concaveconvex structure with described top connection, described adjustable ring is arranged between described top connection and the described high-temp glue cartridge module, described baffle ring A is arranged between described high-temp glue cartridge module and the described bidirectional locking device, and described baffle ring A is provided with groove with respect to a side of described bidirectional locking device.
Described external packer of high temperature pipe, it is characterized in that described bidirectional locking device comprises the fluid cylinder overcoat, piston, hold-down ring, cut off pin, anti-rotation pin and baffle ring B, described hold-down ring is provided with and the corresponding groove in described fluid cylinder overcoat edge, and it is fixedly sleeved on the external surface of described central tube, described fluid cylinder overcoat is enclosed within on the external surface of described central tube, one end is stuck in the described groove of described hold-down ring, and fixedly connected with described hold-down ring by the anti-rotation pin, the other end contacts with described baffle ring A, leave the gap between described fluid cylinder overcoat and the described central tube external surface, described piston is two, be separately positioned on the two ends in the described gap, one of them piston A is inserted in the groove of described baffle ring A, fixedly connected with described baffle ring A or be threaded, pass baffle ring B and be connected with described fluid cylinder overcoat by cutting off pin, the side near described hold-down ring on the described central tube is provided with projection, and another piston B is arranged in described hold-down ring and the described gap that convexes to form.
Described external packer of high temperature pipe also comprises joint ring and pressure ring, described joint ring and described pressure ring are enclosed within on the external surface of described central tube, the position is arranged in the protruding formed gap on described hold-down ring and the described central tube external surface, one end of described joint ring contacts with described piston B, the other end contacts with described pressure ring, and the other end of described pressure ring contacts with described hold-down ring.
Described piston A and the contacted surface of described fluid cylinder overcoat are provided with to moving back tooth, and the projection on described piston B and the described central tube external surface is provided with the inclined-plane of mutual correspondence.
Be full of in the cavity between described fluid cylinder overcoat and the described central tube external surface expansion agent is arranged.
Described external packer of high temperature pipe is characterized in that also comprising retaining ring, described retaining ring with described piston A slip cap on the external surface of described central tube, and described retaining ring inside to move back tooth locking back described piston A to moving back in the tooth.Described external packer of high temperature pipe also comprises copper ring, and described copper ring is arranged on the place, protruding corresponding inclined-plane on described piston B and the described central tube external surface.
Described external packer of high temperature pipe is characterized in that also comprising some fluorine cushion rubbers and some silica gel circles, and described some fluorine cushion rubbers and described some silica gel circles are arranged on the upper and lower surface in described piston A and the described piston B and alternately distribute.
The interior latus rectum of described external packer of high temperature pipe and screen casing is consistent.
The beneficial effect of the technical program: the present invention can be separated into net horizontal section several relatively independent payzones.Underground work such as relatively independent payzone can independently recover the oil respectively, sand control and notes vapour can prevent interlayer interference, improve generally exploitation, improve the recovery ratio of oil reservoir.Simultaneously, the interior latus rectum of external packer of high temperature pipe and screen casing is consistent, can hold bigger steam injection string and flow string, improves the adaptive capacity of oil well.External packer of high temperature pipe not only has good temperature resistance energy (320 ℃ of heatproofs) and withstand voltage properties (withstand voltage 14MPa), but also has bigger expansion radius, seal length and application life, long-term effectively the packing stratum.
Description of drawings
Fig. 1 is the structural representation of external packer of high temperature pipe.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing.
Referring to Fig. 1, external packer of high temperature pipe of the present invention, comprise box cupling 1, casing nipple 2, central tube 5 and top connection 3, one end of described casing nipple 2 is fixedlyed connected with an end of described central tube 5 or screw thread spins, the other end of described casing nipple 2 is fixedlyed connected with described box cupling 1 or screw thread spins, described top connection 3 is enclosed within on the external surface of described casing nipple 2 and described central tube 5 junctions, and fixedly connected or screw thread spins, also comprise high-temp glue cartridge module and bidirectional locking device, described high-temp glue cartridge module and described bidirectional locking device are arranged on the external surface of described central tube 5, one end of described high-temp glue cartridge module contacts with described top connection 3, and the other end contacts with described bidirectional locking device.
Described external packer of high temperature pipe also comprises adjustable ring 4 and baffle ring A6, described adjustable ring 4 and described baffle ring A6 are enclosed within on the external surface of described central tube 5, described adjustable ring 4 is provided with mutual corresponding concaveconvex structure with described top connection 3, described adjustable ring 4 is arranged between described top connection 3 and the described high-temp glue cartridge module, described baffle ring A6 is arranged between described high-temp glue cartridge module and the described bidirectional locking device, and described baffle ring A6 is provided with groove with respect to a side of described bidirectional locking device.
Described bidirectional locking device comprises fluid cylinder overcoat 13, piston, hold-down ring 19, pin 7, anti-rotation pin 18 and baffle ring B8, described hold-down ring 19 is provided with and the corresponding groove in described fluid cylinder overcoat 13 edges, and it is fixedly sleeved on the external surface of described central tube 5, described fluid cylinder overcoat 13 is enclosed within on the external surface of described central tube 5, one end is stuck in the described groove of described hold-down ring 19, and fixedly connected with described hold-down ring 19 by anti-rotation pin 18, the other end contacts with described baffle ring A6, leave the gap between described fluid cylinder overcoat 13 and described central tube 5 external surfaces, described piston is two, be separately positioned on the two ends in the described gap, one of them piston A10 is inserted in the groove of described baffle ring A6, pass baffle ring B8 by pin 7 and be connected with described fluid cylinder overcoat 13, another piston B14 is arranged on described hold-down ring 19 and is arranged in the protruding formed gap on described central tube 5 external surfaces.
Described external packer of high temperature pipe also comprises joint ring 16 and pressure ring 17, described joint ring 16 and described pressure ring 17 are enclosed within on the external surface of described central tube 5, the position is arranged in the protruding formed gap on described hold-down ring 19 and described central tube 5 external surfaces, one end of described joint ring 16 contacts with described piston B14, the other end contacts with described pressure ring 17, and the other end of described pressure ring 17 contacts with described hold-down ring 19.
Described piston A10 and described fluid cylinder overcoat 13 contacted surfaces are provided with to moving back tooth, and the projection on described piston B14 and described central tube 5 external surfaces is provided with the inclined-plane of mutual correspondence.
Fill full expansion agent in the cavity between described fluid cylinder overcoat 13 and described central tube 5 external surfaces.
Described external packer of high temperature pipe also comprises retaining ring 9, described retaining ring 9 with described piston A10 slip cap on the external surface of described central tube 5, and described retaining ring 9 inside to move back be in after the tooth locking described piston A10 to moving back in the tooth.
Described external packer of high temperature pipe also comprises copper ring 15, and described copper ring 15 is arranged on the place, protruding corresponding inclined-plane on described piston B14 and described central tube 5 external surfaces.
Described external packer of high temperature pipe also comprises some fluorine cushion rubbers 11 and some silica gel circles 12, and described some fluorine cushion rubbers 11 and described some silica gel circles 12 are arranged on the upper and lower surface in described piston A10 and the described piston B14 and alternately distribute.
The interior latus rectum of described external packer of high temperature pipe and screen casing is consistent.
Described external packer of high temperature pipe is lowered into the barefoot interval of design by completion tubular column, in steam injection process, the swollen account agent expanded by heating that is contained in the fluid cylinder overcoat 13 promotes the annular space that piston A10 compresses high-temperature plastic cartridge module 4 Sealed casing pipes and bore hole bottom, form several independently production units, net horizontal section is separated into several relatively independent payzones.Underground work such as relatively independent payzone can independently recover the oil respectively, sand control and notes vapour can prevent interlayer interference, improve generally exploitation, improve the recovery ratio of oil reservoir.
Described bidirectional locking structure can farthest reduce to lock the resistance of generation in the process of setting, can also guarantee that external packer of pipe is setting back maintenance sealing state.
Described high-temp glue cartridge module can use high temperature resistant composite to make, and can keep sealing function for a long time under high-temperature condition.
Latus rectum is consistent in described external packer of high temperature pipe and the screen casing etc., can hold bigger steam injection string and flow string, improves the adaptive capacity of oil well.
Claims (10)
1, a kind of external packer of high temperature pipe, comprise box cupling, casing nipple, central tube and top connection, one end of described casing nipple is fixedlyed connected with an end of described central tube or screw thread spins, the other end of described casing nipple is fixedlyed connected with described box cupling or screw thread spins, described top connection is enclosed within on the external surface of described casing nipple and described central tube junction, and fixedly connected or screw thread spins, it is characterized in that also comprising high-temp glue cartridge module and bidirectional locking device, described high-temp glue cartridge module and described bidirectional locking device are enclosed within on the external surface of described central tube, one end of described high-temp glue cartridge module contacts with described top connection, and the other end contacts with described bidirectional locking device.
2, external packer of high temperature pipe as claimed in claim 1, it is characterized in that also comprising adjustable ring and baffle ring A, described adjustable ring and described baffle ring A are enclosed within on the external surface of described central tube, described adjustable ring is provided with mutual corresponding concaveconvex structure with described top connection, described adjustable ring is arranged between described top connection and the described high-temp glue cartridge module, described baffle ring A is arranged between described high-temp glue cartridge module and the described bidirectional locking device, and described baffle ring A is provided with groove with respect to a side of described bidirectional locking device.
3, external packer of high temperature pipe as claimed in claim 1, it is characterized in that described bidirectional locking device comprises the fluid cylinder overcoat, piston, hold-down ring, cut off pin, anti-rotation pin and baffle ring B, described hold-down ring is provided with and the corresponding groove in described fluid cylinder overcoat edge, and it is fixedly sleeved on the external surface of described central tube, described fluid cylinder overcoat is enclosed within on the external surface of described central tube, one end is stuck in the described groove of described hold-down ring, and fixedly connected with described hold-down ring by the anti-rotation pin, the other end contacts with described baffle ring A, leave the gap between described fluid cylinder overcoat and the described central tube external surface, described piston is two, be separately positioned on the two ends in the described gap, one of them piston A is inserted in the groove of described baffle ring A, fixedly connected with described baffle ring A or be threaded, pass baffle ring B and be connected by cutting off pin with described fluid cylinder overcoat, side near described hold-down ring on the described central tube is provided with projection, and another piston B is arranged in described hold-down ring and the described gap that convexes to form.
4, external packer of high temperature pipe as claimed in claim 3, it is characterized in that also comprising joint ring and pressure ring, described joint ring and described pressure ring are enclosed within on the external surface of described central tube, the position is arranged in the gap that convexes to form on described hold-down ring and the described central tube external surface, one end of described joint ring contacts with described piston B, the other end contacts with described pressure ring, and the other end of described pressure ring contacts with described hold-down ring.
5, external packer of high temperature pipe as claimed in claim 3 is characterized in that described piston A and the contacted surface of described fluid cylinder overcoat are provided with to moving back tooth, and the projection on described piston B and the described central tube external surface is provided with the inclined-plane of mutual correspondence.
6, external packer of high temperature pipe as claimed in claim 3 is characterized in that being full of in the cavity between described fluid cylinder overcoat and the described central tube external surface expansion agent is arranged.
7, external packer of high temperature pipe as claimed in claim 5, it is characterized in that also comprising retaining ring, described retaining ring with described piston A slip cap on the external surface of described central tube, and described retaining ring inside to move back tooth locking back described piston A to moving back in the tooth.
8, external packer of high temperature pipe as claimed in claim 5 is characterized in that also comprising copper ring, and described copper ring is arranged on the place, protruding corresponding inclined-plane on described piston B and the described central tube external surface.
9, external packer of high temperature pipe as claimed in claim 3 is characterized in that also comprising some fluorine cushion rubbers and some silica gel circles, and described some fluorine cushion rubbers and described some silica gel circles are arranged on the upper and lower surface in described piston A and the described piston B and alternately distribute.
10,, it is characterized in that the interior latus rectum of described external packer of high temperature pipe and screen casing is consistent as claim 1,2,3,4,5,6,7,8 or 9 described external packer of high temperature pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910084500 CN101555778B (en) | 2009-05-18 | 2009-05-18 | External packer of high temperature pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910084500 CN101555778B (en) | 2009-05-18 | 2009-05-18 | External packer of high temperature pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101555778A true CN101555778A (en) | 2009-10-14 |
| CN101555778B CN101555778B (en) | 2013-08-07 |
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ID=41174036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910084500 Expired - Fee Related CN101555778B (en) | 2009-05-18 | 2009-05-18 | External packer of high temperature pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101555778B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485744A (en) * | 2012-06-13 | 2014-01-01 | 中国石油天然气股份有限公司 | Separated zone water injection centralizing type packer of directional well |
| WO2014015469A1 (en) * | 2012-07-23 | 2014-01-30 | 思达斯易能源技术(集团)有限公司 | Liner hanger top packer |
| CN109281634A (en) * | 2018-10-18 | 2019-01-29 | 中国石油化工股份有限公司 | A kind of double Tubing Packers |
| CN111946315A (en) * | 2019-05-15 | 2020-11-17 | 中国石油天然气股份有限公司 | Parallel double-tube layered fireflood ignition system |
| CN115788354A (en) * | 2023-02-06 | 2023-03-14 | 纬达石油装备有限公司 | Double-compression type open hole packer and using method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2287206Y (en) * | 1997-03-08 | 1998-08-05 | 辽河油田勘探局钻采工艺研究院 | Sealing and separating device for hot production |
| CN2464930Y (en) * | 2001-01-18 | 2001-12-12 | 辽河油田金海麦克发机械厂 | Pneumatic and heat double-driving heat production packer |
| CN2485414Y (en) * | 2001-05-28 | 2002-04-10 | 辽河油田金海麦克发机械厂 | Self extending packer for hot production |
| CN2693940Y (en) * | 2004-04-06 | 2005-04-20 | 潘昌德 | Compression high temperature steam injection packer |
| CN2763489Y (en) * | 2005-02-01 | 2006-03-08 | 盘锦辽河油田金海麦克发有限责任公司 | Small-diameter thermal recovery packer |
-
2009
- 2009-05-18 CN CN 200910084500 patent/CN101555778B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485744A (en) * | 2012-06-13 | 2014-01-01 | 中国石油天然气股份有限公司 | Separated zone water injection centralizing type packer of directional well |
| CN103485744B (en) * | 2012-06-13 | 2016-01-20 | 中国石油天然气股份有限公司 | Directional well seperated layer water injection righting type packer |
| WO2014015469A1 (en) * | 2012-07-23 | 2014-01-30 | 思达斯易能源技术(集团)有限公司 | Liner hanger top packer |
| EA026625B1 (en) * | 2012-07-23 | 2017-04-28 | Старс Энерджи Энд Текнолоджи (Груп) Ко., Лтд. | Liner hanger top packer |
| US9745809B2 (en) | 2012-07-23 | 2017-08-29 | Starse Energy And Technology (Group) Co., Ltd. | Liner hanger top packer |
| CN109281634A (en) * | 2018-10-18 | 2019-01-29 | 中国石油化工股份有限公司 | A kind of double Tubing Packers |
| CN111946315A (en) * | 2019-05-15 | 2020-11-17 | 中国石油天然气股份有限公司 | Parallel double-tube layered fireflood ignition system |
| CN115788354A (en) * | 2023-02-06 | 2023-03-14 | 纬达石油装备有限公司 | Double-compression type open hole packer and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101555778B (en) | 2013-08-07 |
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Granted publication date: 20130807 Termination date: 20140518 |