CN104563944A - Releasing well plugging device - Google Patents
Releasing well plugging device Download PDFInfo
- Publication number
- CN104563944A CN104563944A CN201410033476.5A CN201410033476A CN104563944A CN 104563944 A CN104563944 A CN 104563944A CN 201410033476 A CN201410033476 A CN 201410033476A CN 104563944 A CN104563944 A CN 104563944A
- Authority
- CN
- China
- Prior art keywords
- spring
- tooth
- central pipe
- central tube
- well plugging
- 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.)
- Pending
Links
- 238000012856 packing Methods 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003129 oil well Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 208000002925 dental caries Diseases 0.000 abstract 3
- 238000007789 sealing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
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)
- Closures For Containers (AREA)
Abstract
The invention discloses a releasing well plugging device, belongs to the technical field of oil production engineering application, and aims to solve the technical problem of absence of an ideal mature process for sealing a wellhead during the off-production of an oil well. According to the technical scheme, a central pipe is connected with a tooth cavity through a screw thread, wherein an anchorage tooth is arranged in an open window of the tooth cavity, and is pressed on a cone through an anchorage tooth spring; a valve plug sleeves the lower end of the central pipe; a ball pressure spring is pressed on the valve plug through a spring cylinder; the spring cylinder is connected with the central pipe through a screw thread, and the other parts, except the tooth cavity, are connected with the central pipe in a sleeving manner. The releasing well plugging device has the beneficial effects that the releasing well plugging device is sealed in a wellbore, has high antitheft performance and pressure relief and draining functions, and is easy to operate, safe, environment-friendly and low in well plugging cost; no parts are exposed from the wellhead, and the wellhead cannot be opened without a special tool; string tripping operation is not required.
Description
Technical field
The invention belongs to petroleum production engineering applied technical field, what be specifically related to is that one is given up blowout preventer.
Background technology
In oilfield process, oil well stops the situation of producing to be often occur, as after completion to lower pump, after discharge opeing before metaideophone, oil pumping changes bailing, and because of High water cut closing well etc.Under the hydrostatic pressure of stratum, easily cause well head bleed preventing water phenomenon like this, this just needs closed well head, and its object one prevents oil gas from overflowing, reserved resource and environment; Two is prevent from being thrown away foreign material blocking pit shaft in people Xiang Jing, causes well workover.And at present well head is closed and is not also had very desirable maturation process, typically use conventional wellhead cap shut-in well and lower bridging plug two kinds of modes, conventional wellhead cap shut-in well shortcoming can rise because oil well seals rear borehole pressure, well head is caused to build the pressure, when opening to needs, wellhead cap is difficult to open, and with pressurely opens also danger close by force, as added valve shut-in well on wellhead cap, then valve is easily stolen by people again or is drained the oil, and does not reach the object of shut-in well.
Summary of the invention
In order to overcome the deficiency of above-mentioned well-filling techniques, the invention provides a kind of novel blowout preventer of giving up, be enclosed in pit shaft, have good theftproof performance, well head is without exposing part, cannot open without special tool, processing ease, has pressure release tapping function, safety and environmental protection, need not carry out lower tubular column operation, shut-in well expense is low.
The present invention solves the technical scheme that its technical problem takes: one is given up, and blowout preventer is stifled by teeth cavity, central tube, anchor tooth, cone, spring cylinder, glue tube base, valve, packing element bushing pipe, anchor tooth spring, pressure ball spring, packing element form; Central tube and teeth cavity are with screwed connection, and anchor tooth is contained in windowing of teeth cavity, are pressed in cone by anchor tooth spring by anchor tooth, valve blocks up the lower end being enclosed within central tube, and pressure ball spring is pressed in valve by spring cylinder and blocks, and spring cylinder and central tube are with screwed connection, all the other parts, except teeth cavity, are all be socketed with central tube.
The invention has the beneficial effects as follows, this blowout preventer of giving up is enclosed in pit shaft, has good theftproof performance, and well head is without exposing part, cannot open without special tool, processing ease, there is pressure release tapping function, safety and environmental protection, need not carry out lower tubular column operation, and shut-in well expense is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Stifled by 1 teeth cavity, 2 central tubes, 3 anchor teeth, 4 cones, 5 spring cylinders, 6 glue tube bases, 7 valves in figure, 8 packing element bushing pipes, 9 anchor tooth springs, 10 pressure ball springs, 11 packing elements form.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated: as shown in Figure 1, and one is given up, and blowout preventer is stifled 7 by teeth cavity 1, central tube 2, anchor tooth 3, cone 4, spring cylinder 5, glue tube base 6, valve, packing element bushing pipe 8, anchor tooth spring 9, pressure ball spring 10, packing element 11 form; Central tube 2 and teeth cavity 1 are with screwed connection, anchor tooth 3 is contained in windowing of teeth cavity 1, by anchor tooth spring 9, anchor tooth 3 is pressed in cone 4, valve blocks up the lower end that 7 are enclosed within central tube 2, pressure ball spring 10 is pressed on valve stifled 7 by spring cylinder 5, spring cylinder 5 and central tube 2 are with screwed connection, and all the other parts, except teeth cavity 1, are all be socketed with central tube 2.
By after the upper operation tool urceolus that is threaded of giving up on teeth cavity 1 during application, blowout preventer of giving up puts into well, makes the upper end of urceolus be sitting on well head, plays the effect of blowout preventer of fixedly giving up; Then operation tool inner core is entered down, with central tube 2 grafting of blowout preventer of giving up, namely turn inner core drives the central tube 2 of blowout preventer of giving up to rotate, under the effect that spiral is paid between central tube 2 and teeth cavity 1, central tube 2 is up relative to teeth cavity 1, just compresses outside packing element 11 and anchor tooth 3 swollen by spring cylinder 5 and glue tube base 6, is pressed on the borehole wall, so give up, blowout preventer has just been fixed in well, achieves and sets.
When this well needs deblocking, first enter down urceolus and be connected with blowout preventer of giving up, then under enter inner core and give up central tube 2 grafting of blowout preventer, then reversely rotate inner core, anchor tooth 3 and packing element 11 are retracted, and can regain blowout preventer by deblocking; As overstock in well, then operation tool is bled off pressure pipe insertion and give up in the central tube 2 of blowout preventer, screw down valve stifled 7, puts into tank car by hydrops in well, then implements unsealing operation.
Claims (1)
1. a blowout preventer of giving up is made up of teeth cavity (1), central tube (2), anchor tooth (3), cone (4), spring cylinder (5), glue tube base (6), valve stifled (7), packing element bushing pipe (8), anchor tooth spring (9), pressure ball spring (10), packing element (11); Central tube (2) and teeth cavity (1) are with screwed connection, anchor tooth (3) is contained in windowing of teeth cavity (1), by anchor tooth spring (9), anchor tooth (3) is pressed in cone (4), valve stifled (7) is enclosed within the lower end of central tube (2), pressure ball spring (10) is pressed on valve stifled (7) by spring cylinder (5), spring cylinder (5) and central tube (2) are with screwed connection, all the other parts, except teeth cavity (1), are all be socketed with central tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033476.5A CN104563944A (en) | 2014-01-24 | 2014-01-24 | Releasing well plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033476.5A CN104563944A (en) | 2014-01-24 | 2014-01-24 | Releasing well plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104563944A true CN104563944A (en) | 2015-04-29 |
Family
ID=53080929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410033476.5A Pending CN104563944A (en) | 2014-01-24 | 2014-01-24 | Releasing well plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104563944A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761536A (en) * | 2016-12-10 | 2017-05-31 | 牡丹江市金环石化设备有限公司 | A kind of pumpingh well downhole hardware |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834175A (en) * | 1988-09-15 | 1989-05-30 | Otis Engineering Corporation | Hydraulic versa-trieve packer |
| CN2898275Y (en) * | 2006-04-27 | 2007-05-09 | 天津市福民工贸有限公司 | Multifunctional well packer |
| CN201090169Y (en) * | 2007-10-22 | 2008-07-23 | 安达市庆新油田开发有限责任公司 | Well head anchorage blowout preventer |
| CN201344009Y (en) * | 2009-02-03 | 2009-11-11 | 大庆市慧灵石油科技有限公司 | Anti-theft controllable well plugging device |
| CN201982055U (en) * | 2011-03-16 | 2011-09-21 | 天津市大港区龙新石油机械制造有限公司 | Multifunctional blowout preventer |
| CN202064872U (en) * | 2011-04-22 | 2011-12-07 | 中国石油天然气股份有限公司 | Well head anti-theft pressure release well sealer |
| CN202273630U (en) * | 2011-10-29 | 2012-06-13 | 高伟时 | Controllable pressure-release antitheft well shutting device in well opening |
| CN203808916U (en) * | 2014-01-24 | 2014-09-03 | 大庆金祥寓科技有限公司 | Releasing blowout preventer |
-
2014
- 2014-01-24 CN CN201410033476.5A patent/CN104563944A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834175A (en) * | 1988-09-15 | 1989-05-30 | Otis Engineering Corporation | Hydraulic versa-trieve packer |
| CN2898275Y (en) * | 2006-04-27 | 2007-05-09 | 天津市福民工贸有限公司 | Multifunctional well packer |
| CN201090169Y (en) * | 2007-10-22 | 2008-07-23 | 安达市庆新油田开发有限责任公司 | Well head anchorage blowout preventer |
| CN201344009Y (en) * | 2009-02-03 | 2009-11-11 | 大庆市慧灵石油科技有限公司 | Anti-theft controllable well plugging device |
| CN201982055U (en) * | 2011-03-16 | 2011-09-21 | 天津市大港区龙新石油机械制造有限公司 | Multifunctional blowout preventer |
| CN202064872U (en) * | 2011-04-22 | 2011-12-07 | 中国石油天然气股份有限公司 | Well head anti-theft pressure release well sealer |
| CN202273630U (en) * | 2011-10-29 | 2012-06-13 | 高伟时 | Controllable pressure-release antitheft well shutting device in well opening |
| CN203808916U (en) * | 2014-01-24 | 2014-09-03 | 大庆金祥寓科技有限公司 | Releasing blowout preventer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761536A (en) * | 2016-12-10 | 2017-05-31 | 牡丹江市金环石化设备有限公司 | A kind of pumpingh well downhole hardware |
| CN106761536B (en) * | 2016-12-10 | 2018-10-23 | 牡丹江市金环石化设备有限公司 | A kind of pumpingh well downhole hardware |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103850663A (en) | Extractable type integrated setting and ash-extruding bridge plug | |
| CN203394418U (en) | Manual type rapid plugging device and socket spanner thereof | |
| CN104088599A (en) | Expansion bridge blinding method for outer packer of cement paste filled pipe | |
| CN205422562U (en) | Not kill -job of shale gas well is not taken and has been pressed down flow string | |
| CN104563955A (en) | Steel pipe hydraulic expansion type external casing packer | |
| CN104963634A (en) | Method for tripping sucker rod | |
| CN202493239U (en) | Blowout preventer | |
| CN103775022A (en) | Multifunctional packer capable of resealing under lower pressure after sealing under high pressure for the first time | |
| CN203808916U (en) | Releasing blowout preventer | |
| CN104213863A (en) | Injection well oil jacket plugging device | |
| CN104563944A (en) | Releasing well plugging device | |
| CN101839117B (en) | Annulus safety valve | |
| RU2441975C1 (en) | Methods of well killing within the severe environment of gas and gas-condensate wells | |
| CN104563956A (en) | Two-way anchored well plugging device | |
| CN203961897U (en) | A kind of cement paste filling tube external packer envelope is altered instrument | |
| CN201090169Y (en) | Well head anchorage blowout preventer | |
| CN203808915U (en) | Oil pipe hanger plugging device | |
| CN211448593U (en) | Suitable for CO2Huff-puff injection-production integrated wellhead device | |
| CN203161152U (en) | Sucker rod self-sealing preventer | |
| CN201924873U (en) | Long-term expanding packer | |
| CN109989725A (en) | Exempt from brill formula blind plate and exempts to bore plug well shaft fixing technology | |
| CN204024568U (en) | Water injection well oil jacket plugging device | |
| CN208106372U (en) | A kind of compound preventer of sucker rod | |
| CN209670938U (en) | A kind of inflatable packer | |
| CN204804753U (en) | Blanking plug |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |