CN106522900B - A kind of two-way blowout-preventing ball seat for the control of well wellbore fluids - Google Patents
A kind of two-way blowout-preventing ball seat for the control of well wellbore fluids Download PDFInfo
- Publication number
- CN106522900B CN106522900B CN201611126817.9A CN201611126817A CN106522900B CN 106522900 B CN106522900 B CN 106522900B CN 201611126817 A CN201611126817 A CN 201611126817A CN 106522900 B CN106522900 B CN 106522900B
- Authority
- CN
- China
- Prior art keywords
- ball seat
- lock ring
- piston
- sliding sleeve
- pin
- 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
- 239000012530 fluid Substances 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 230000035939 shock Effects 0.000 claims description 4
- 230000002265 prevention Effects 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 2
- 241001133184 Colletotrichum agaves Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- 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
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
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)
- Fluid-Damping Devices (AREA)
Abstract
The present invention relates to technical field of oil production engineering, belong to a kind of two-way blowout-preventing ball seat for the control of well wellbore fluids, it is to solve conventional ball seat and can not achieve secondary blowout prevention and design；The present invention is by top connection (1), lock ring set (2), sliding sleeve pin (3), it hits sliding sleeve (4), piston pin (5), overhead gage (6), lock ring (7), retaining ring (8), piston (9), connector (10), steel ball (11), ball seat (12), stifled pin (13) living, stifled (14) living, spring (15), lower contact (16), lower baffle plate (17) composition, wherein lock ring set (2) is threadedly coupled with top connection (1), overhead gage (6) is threadedly coupled with sliding sleeve (4) are hit, lock ring set (2) is threadedly coupled with connector (10), connector (10) is threadedly coupled with lower contact (16)；It can carry out well downhole fluid control, have many advantages, such as that structure is simple, rationally distributed, and when water well operation can realize secondary blowout prevention.
Description
Technical field: the present invention relates to technical field of oil production engineering, belong to a kind of for the double of well wellbore fluids control
To blowout-preventing ball seat.
Background technique: environmental protection at present is more and more next important, as underground work number increases year by year, open flow overflow drop
Pressure can not only destroy strata pressure, can also generate environmentally friendly hidden danger, must avoid causing dirt to environment while guaranteeing that oil field produces
Dye, and conventional ball seat can not achieve secondary blowout prevention in underground work, to solve this problem, have developed two-way blowout-preventing ball seat,
In lift pipe string, it can realize secondary blowout prevention, and do not need kill-job measure with Seal Oil tube passage, it is therefore prevented that formation contaminant,
Overflow can be effectively controlled, is a kind of really environmentally protective operation.
Summary of the invention: the object of the present invention is to provide can control the one of well wellbore fluids by realizing secondary blowout prevention
Two-way blowout-preventing ball seat of the kind for the control of well wellbore fluids.
The present invention is achieved by the following technical solutions: it is by top connection, lock ring set, sliding sleeve pin, shock sliding sleeve, work
Plug pin nail, overhead gage, lock ring, retaining ring, piston, connector, steel ball, ball seat, stifled pin living, stifled, spring, lower contact, lower block living
Board group is at wherein lock ring set is threadedly coupled with top connection, and overhead gage is threadedly coupled with sliding sleeve is hit, and hits sliding sleeve and top connection is logical
It crosses sliding sleeve pin to be fixedly connected, lower baffle plate is connect with piston thread, and piston is covered with lock ring to be fixedly connected by piston pin, lock ring
It covers on piston, retaining ring is connect with piston thread, and connector is threadedly coupled with lock ring set and lower contact respectively up and down, and spring pocket exists
Outside ball seat, ball seat is placed in lower contact, and steel ball is placed in ball seat, and living block up is fixedly connected with ball seat by stifled pin living.
Overhead gage and lower baffle plate are designed as four circular hole channel designs；Lock ring set lower part is designed as open-celled structure；Lock ring with
It is locking structure that lock ring, which covers matching design,.
Compared with the prior art the present invention has the advantages that
The configuration of the present invention is simple is reasonable, long service life, is suitable for well wellbore fluids and controls.Overhead gage and lower baffle plate are set
Four circular hole channel designs are calculated as, increase area of passage, lock ring set lower part is designed as open-celled structure, living when guaranteeing normal water filling
Plug pin nail does not stress, and lock ring and lock ring set matching design are locking structure, can be effectively in steel ball dieback to ball seat, to ensure
It is efficient sealed.
Detailed description of the invention: Fig. 1 is structural schematic diagram of the invention.
1- top connection, 2- lock ring set, 3- sliding sleeve pin, 4- hit sliding sleeve, 5- piston pin, 6- overhead gage, 7- lock in figure
Under ring, 8- retaining ring, 9- piston, 10- connector, 11- steel ball, 12- ball seat, 13- stifled pin living, 14- stifled, 15- spring, 16- living
Connector, 17- lower baffle plate.
Specific embodiment: the present invention will be further explained below with reference to the attached drawings: the present invention is by top connection 1, lock ring set
2, sliding sleeve pin 3, shock sliding sleeve 4, piston pin 5, overhead gage 6, lock ring 7, retaining ring 8, piston 9, connector 10, steel ball 11, ball
Seat 12, stifled pin 13 living, living stifled 14, spring 15, lower contact 16, lower baffle plate 17 form, wherein lock ring set 2 and 1 screw thread of top connection
Connection, overhead gage 6 are threadedly coupled with sliding sleeve 4 is hit, and are hit sliding sleeve 4 and are fixedly connected with top connection 1 by sliding sleeve pin 3, lower block
Plate 17 is threadedly coupled with piston 9, and piston 9 and lock ring set 2 is fixedly connected by piston pin 5,7 sets of lock ring on piston 9, retaining ring
8 are threadedly coupled with piston 9, and about 10 connector is threadedly coupled with lock ring set 2 and lower contact 16 respectively, and 15 sets of spring in ball seat 12
Outside, ball seat 12 is placed in lower contact 16, and steel ball 11 is placed in ball seat 12, and living stifled 14 connect with ball seat 12 by the way that stifled pin 13 living is fixed
It connects.
Overhead gage 6 and lower baffle plate 17 are designed as four circular hole channel designs；Lock ring covers 2 lower parts and is designed as open-celled structure；Lock
It is locking structure that ring 7 and lock ring, which cover 2 matching designs,.
Scene constitutes blowout prevention tubing string in use, the present invention is connected to packer lower end, when lower tubular column, by stifled 14 sealing living
Reversed blowout prevention is realized in oil pipe channel, and when arriving designated depth under tubing string, releasing packer, pressure rise to certain value are suppressed in ground
When, living stifled 14 are struck off, packer setting, and when water filling, steel ball 11 falls into ball seat 12, positive sealing is realized, to guarantee normal note
Water also can satisfy reversed well-flushing function.When secondary operation, trip rod is put into oil pipe, hits overhead gage 6, sliding sleeve pin
Nail 3 is cut, and is hit the shock piston 9 of sliding sleeve 4 and is moved downward, lock ring 7 and lock ring cover 2 threaded engagements, lock piston 9, lower baffle plate 17
It withstands on steel ball 11, steel ball 11 is seated in ball seat 12, and Seal Oil tube passage realizes secondary blowout prevention.
Claims (4)
1. a kind of two-way blowout-preventing ball seat for the control of well wellbore fluids, it is characterised in that: it is by top connection (1), lock ring set
(2), sliding sleeve pin (3), shock sliding sleeve (4), piston pin (5), overhead gage (6), lock ring (7), retaining ring (8), piston (9), company
Connector (10), steel ball (11), ball seat (12), stifled pin (13) living, stifled (14), spring (15), lower contact (16), lower baffle plate living
(17) it forms, wherein lock ring set (2) is threadedly coupled with top connection (1), and overhead gage (6) is threadedly coupled with sliding sleeve (4) are hit, and is hit
Sliding sleeve (4) is fixedly connected with top connection (1) by sliding sleeve pin (3), and lower baffle plate (17) is threadedly coupled with piston (9), piston (9)
It is fixedly connected with lock ring set (2) by piston pin (5), lock ring (7) covers on piston (9), retaining ring (8) and piston (9) screw thread
Connection, connector (10) are threadedly coupled with lock ring set (2) and lower contact (16) respectively up and down, and spring (15) is covered in ball seat (12)
Outside, ball seat (12) is placed in lower contact (16), and steel ball (11) is placed in ball seat (12), and stifled (14) and ball seat (12) living pass through living stifled
Pin (13) is fixedly connected.
2. a kind of two-way blowout-preventing ball seat for the control of well wellbore fluids according to claim 1, it is characterised in that: on
Baffle (6) and lower baffle plate (17) are designed as four circular hole channel designs.
3. a kind of two-way blowout-preventing ball seat for the control of well wellbore fluids according to claim 1, it is characterised in that: lock
Ring set (2) lower part is designed as open-celled structure.
4. a kind of two-way blowout-preventing ball seat for the control of well wellbore fluids according to claim 1, it is characterised in that: lock
Ring (7) and lock ring set (2) matching design are locking structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611126817.9A CN106522900B (en) | 2016-12-09 | 2016-12-09 | A kind of two-way blowout-preventing ball seat for the control of well wellbore fluids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611126817.9A CN106522900B (en) | 2016-12-09 | 2016-12-09 | A kind of two-way blowout-preventing ball seat for the control of well wellbore fluids |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106522900A CN106522900A (en) | 2017-03-22 |
| CN106522900B true CN106522900B (en) | 2019-01-22 |
Family
ID=58342876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611126817.9A Active CN106522900B (en) | 2016-12-09 | 2016-12-09 | A kind of two-way blowout-preventing ball seat for the control of well wellbore fluids |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106522900B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107103074B (en) * | 2017-04-21 | 2021-08-31 | 奇酷互联网络科技（深圳）有限公司 | Processing method of shared information and mobile terminal |
| CN108266155A (en) * | 2018-01-12 | 2018-07-10 | 中国石油天然气股份有限公司 | Blowout prevention tubing string and Technics of Prevention of Well Blowout in water injection well working pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3744564A (en) * | 1971-04-06 | 1973-07-10 | Hydril Co | Subsurface well apparatus and method |
| CN2451730Y (en) * | 2000-09-29 | 2001-10-03 | 胜利石油管理局采油工艺研究院 | Hydraulic seam change switch |
| CN2714796Y (en) * | 2004-05-18 | 2005-08-03 | 中国石油化工股份有限公司中原油田分公司采油工程技术研究院 | Backflow proof ballseat |
| CN201024988Y (en) * | 2007-02-09 | 2008-02-20 | 中国石油化工股份有限公司中原油田分公司采油工程技术研究院 | An overflow leakage flowing ball base |
| CN101975042A (en) * | 2010-10-25 | 2011-02-16 | 张川民 | Fully functional anti-spouting oil drain device |
| CN105201454A (en) * | 2015-09-01 | 2015-12-30 | 中国石油天然气股份有限公司 | Blowout-preventive multifunctional tail pipe for water injection well |
-
2016
- 2016-12-09 CN CN201611126817.9A patent/CN106522900B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3744564A (en) * | 1971-04-06 | 1973-07-10 | Hydril Co | Subsurface well apparatus and method |
| CN2451730Y (en) * | 2000-09-29 | 2001-10-03 | 胜利石油管理局采油工艺研究院 | Hydraulic seam change switch |
| CN2714796Y (en) * | 2004-05-18 | 2005-08-03 | 中国石油化工股份有限公司中原油田分公司采油工程技术研究院 | Backflow proof ballseat |
| CN201024988Y (en) * | 2007-02-09 | 2008-02-20 | 中国石油化工股份有限公司中原油田分公司采油工程技术研究院 | An overflow leakage flowing ball base |
| CN101975042A (en) * | 2010-10-25 | 2011-02-16 | 张川民 | Fully functional anti-spouting oil drain device |
| CN105201454A (en) * | 2015-09-01 | 2015-12-30 | 中国石油天然气股份有限公司 | Blowout-preventive multifunctional tail pipe for water injection well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106522900A (en) | 2017-03-22 |
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