CN106522900A - Bidirectional blowout-prevention ball seat for control over fluid in water well shaft - Google Patents
Bidirectional blowout-prevention ball seat for control over fluid in water well shaft Download PDFInfo
- Publication number
- CN106522900A CN106522900A CN201611126817.9A CN201611126817A CN106522900A CN 106522900 A CN106522900 A CN 106522900A CN 201611126817 A CN201611126817 A CN 201611126817A CN 106522900 A CN106522900 A CN 106522900A
- Authority
- CN
- China
- Prior art keywords
- ball seat
- lock ring
- piston
- sliding sleeve
- blowout
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention belongs to the technical field of oil production engineering, and relates to a bidirectional blowout-prevention ball seat for control over fluid in a water well shaft. The bidirectional blowout-prevention ball seat is designed for solving the problem that secondary blowout prevention cannot be achieved by a conventional ball seat. The bidirectional blowout-prevention ball seat is composed of an upper joint (1), a lock ring sleeve (2), a sliding sleeve dowel (3), an impact sliding sleeve (4), a piston dowel (5), baffles (6), a lock ring (7), a check ring (8), a piston (9), a connector (10), a steel ball (11), a ball seat body (12), a movable plug dowel (13), a movable plug (14), a spring (15) and a lower joint (16), wherein the lock ring sleeve (2) is connected with the upper joint (1) in a threaded mode, the baffles (6) are connected with the impact sliding sleeve (4) in a threaded mode, the lock ring sleeve (2) is connected with the connector (10) in a threaded mode, and the connector (10) is connected with the lower joint (16) in a threaded mode. The bidirectional blowout-prevention ball seat can be used for control over fluid in a water well and has the advantages of being simple in structure, reasonable in layout, capable of preventing secondary blowout during water well work and the like.
Description
Technical field
The present invention relates to technical field of oil production engineering, belongs to a kind of two-way blowout-preventing ball for the control of well wellbore fluids
Seat.
Background technology
Environmental protection at present increasingly comes important, and as underground work number of times increases year by year, open flow overflow step-down not only can
Destruction strata pressure, can also produce environmentally friendly hidden danger, must avoid to environment while ensureing that oil field produces, and conventional
Ball seat can not realize secondary blowout prevention in underground work, be to solve this problem, have developed two-way blowout-preventing ball seat, in lift pipe string
When, it can realize secondary blowout prevention, and do not need kill-job measure, it is therefore prevented that formation contaminant with Seal Oil tube passage, can be effective
Control overflow, is a kind of real environmental protection operation.
The content of the invention
It is an object of the invention to provide one kind that well wellbore fluids can be controlled by realizing secondary blowout prevention is used for water
The two-way blowout-preventing ball seat of well shaft fluid control.
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, baffle plate, lock ring, back-up ring, piston, connector, steel ball, ball seat, stifled pin living, stifled, spring living, lower contact composition, its
Middle lock ring set is threadedly coupled with top connection, and baffle plate is threadedly coupled with sliding sleeve is clashed into, and clashes into sliding sleeve and top connection passes through sliding sleeve pin
It is fixedly connected, baffle plate is connected with piston thread, piston is fixedly connected by piston pin with lock ring set, and lock ring is enclosed within piston,
Back-up ring is connected with piston thread, connector up and down respectively with lock ring cover and lower contact be threadedly coupled, spring housing outside ball seat, ball seat
It is placed in lower contact, steel ball is placed in ball seat, living blocking up is fixedly connected by stifled pin living with ball seat.
Baffle design is four circular hole channel designs；Lock ring set bottom is designed as open-celled structure；Lock ring is coordinated with lock ring set
It is designed as locking structure.
Compared with the prior art the present invention has the advantage that：
Present configuration advantages of simple, long service life, it is adaptable to which well wellbore fluids are controlled.Baffle design is that four circular holes lead to
Road structure, increases area of passage, and lock ring set bottom is designed as open-celled structure, to ensure that piston pin does not stress during normal water filling,
Lock ring is locking structure with lock ring set matching design, can be effectively in steel ball dieback to ball seat efficient sealed to guarantee.
Description of the drawings：Fig. 1 is the structural representation of the present invention.
1- top connections in figure, 2- lock ring sets, 3- sliding sleeve pins, 4- clash into sliding sleeve, 5- piston pins, 6- baffle plates, 7- lock rings,
Live stifled pin, 14- of 8- back-up rings, 9- pistons, 10- connectors, 11- steel balls, 12- ball seats, 13- lives
Head.
Specific embodiment：The invention will be further described below in conjunction with the accompanying drawings：The present invention is by top connection 1, lock ring set
2nd, sliding sleeve pin 3, shock sliding sleeve 4, piston pin 5, baffle plate 6, lock ring 7, back-up ring 8, piston 9, connector 10, steel ball 11, ball seat
12nd, pin 13 living stifled, living stifled 14, spring 15, lower contact 16 are constituted, and wherein lock ring set 2 is threadedly coupled with top connection 1, baffle plate 6 and
Clash into sliding sleeve 4 to be threadedly coupled, clash into sliding sleeve 4 and be fixedly connected by sliding sleeve pin 3 with top connection 1, baffle plate 6 is connected with 9 screw thread of piston
Connect, piston 9 is fixedly connected by piston pin 5 with lock ring set 2, and lock ring 7 is enclosed within piston 9, and back-up ring 8 is threadedly coupled with piston 9,
Connector is threadedly coupled with lock ring set 2 and lower contact 16 about 10 respectively, and spring 15 is enclosed within outside ball seat 12, and ball seat 12 is placed in down and connects
In 16, steel ball 11 is placed in ball seat 12, and living stifled 14 are fixedly connected by the pin 13 that blocks up living with ball seat 12.
Baffle plate 6 is designed as four circular hole channel designs；Lock ring covers 2 bottoms and is designed as open-celled structure；Lock ring 7 and lock ring set 2
Matching design is locking structure.
During onsite application, the present invention is connected to packer lower end, constitutes blowout prevention tubing string, during lower tubular column, by stifled 14 sealing living
Oil pipe passage, realizes reverse blowout prevention, and when designated depth is arrived under tubing string, releasing packer is suppressed on ground, and pressure rise is to certain value
When, living stifled 14 are struck off, packer setting, and during water filling, steel ball 11 falls into ball seat 12, realize positive sealing, to ensure normal note
Water, it is also possible to meet reverse well-flushing function.When secondary operation, trip rod, impingement baffles 6, sliding sleeve pin 3 are put into into oil pipe
Cut off, clash into the shock piston 9 of sliding sleeve 4 and move downward, lock ring 7 covers 2 threaded engagements with lock ring, and locked piston 9, baffle plate 6 withstand on steel
On ball 11, steel ball 11 is seated in ball seat 12, and Seal Oil tube passage realizes secondary blowout prevention.
Claims (4)
1. it is a kind of for well wellbore fluids control two-way blowout-preventing ball seat, 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), baffle plate (6), lock ring (7), back-up ring (8), piston (9), connection
Head (10), steel ball (11), ball seat (12), stifled pin (13) living, stifled (14) living, spring (15), lower contact (16) composition, wherein locking
Ring set (2) is threadedly coupled with top connection (1), and baffle plate (6) is threadedly coupled with sliding sleeve (4) is clashed into, and clashes into sliding sleeve (4) and top connection
(1) it is fixedly connected by sliding sleeve pin (3), baffle plate (6) and piston（9）Threaded connection, piston (9) is with lock ring set (2) by work
Plug pin nail (5) is fixedly connected, and lock ring (7) is enclosed within piston (9), and back-up ring (8) is threadedly coupled with piston (9), on connector (10)
Lower to be threadedly coupled with lock ring set (2) and lower contact (16) respectively, spring (15) is enclosed within ball seat (12) outward, and ball seat (12) is placed in down and connects
In head (16), steel ball (11) is placed in ball seat (12), and stifled (14) living are fixedly connected by stifled pin (13) living with ball seat (12).
2. it is according to claim 1 it is a kind of for well wellbore fluids control two-way blowout-preventing ball seat, it is characterised in that：Gear
Plate (6) is designed as four circular hole channel designs.
3. it is according to claim 1 it is a kind of for well wellbore fluids control two-way blowout-preventing ball seat, it is characterised in that：Lock
Ring set (2) bottom is designed as open-celled structure.
4. it is according to claim 1 it is a kind of for well wellbore fluids control two-way blowout-preventing ball seat, it is characterised in that：Lock
Ring (7) is locking structure with lock ring set (2) matching design.
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 true CN106522900A (en) | 2017-03-22 |
| CN106522900B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107103074A (en) * | 2017-04-21 | 2017-08-29 | 奇酷互联网络科技（深圳）有限公司 | The processing method and mobile terminal of a kind of sharing information |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107103074A (en) * | 2017-04-21 | 2017-08-29 | 奇酷互联网络科技（深圳）有限公司 | The processing method and mobile terminal of a kind of sharing information |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106522900B (en) | 2019-01-22 |
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