CN105715226A - Blowout-preventing well plugging device located under wellhead - Google Patents
Blowout-preventing well plugging device located under wellhead Download PDFInfo
- Publication number
- CN105715226A CN105715226A CN201610245573.XA CN201610245573A CN105715226A CN 105715226 A CN105715226 A CN 105715226A CN 201610245573 A CN201610245573 A CN 201610245573A CN 105715226 A CN105715226 A CN 105715226A
- Authority
- CN
- China
- Prior art keywords
- cone
- slip
- slips
- inner pipe
- anchoring device
- 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
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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
-
- 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
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
Abstract
The invention provides a blowout-preventing well plugging device located under a wellhead. A slip support, a cone and a rubber barrel sleeve an inner pipe; a slip is mounted between the slip support and the cone; the upper part of the slip is suspended on the slip support; the lower part of the slip is in lap joint with a slip groove of the cone; a tapered surface of the slip is in contact with the tapered surface of the cone in a matching manner; a rubber barrel seat is mounted at the lower part of the rubber barrel; the rubber barrel seat is connected onto the inner pipe; the inner pipe is provided with a pulling thread; an inner thread of a rotary anchoring device is in screwing connection with the pull thread; the lower part of the rotary anchoring device is connected with the upper part of the slip support; the rotary anchoring device can spirally move on the inner pipe and is mounted in a sleeve under the wellhead of an oil field steam injection thermal production well; the inner pipe rotates on the ground and the rotary anchoring device is anchored on the sleeve; the inner pipe moves upwards and the slip is pushed out to be firmly clamped on the sleeve; the inner pipe continually rotates and the rubber barrel seat compresses the rubber barrel, so that the rubber barrel is expanded to seal the sleeve, and a rotary shaft wellhead device can be safely replaced, and furthermore, blowout does not occur; and the blowout-preventing well plugging device has remarkable economical and social benefits.
Description
Technical field
The present invention is the device of a kind of oil extraction in oil field well head, be a kind of under blowout prevention blowout preventer under well head.
Background technology
Oil field gas injection thermal production well noted high pressure-temperature steam turn take out time, it is necessary to change wellhead tree tree, now wellhead equipment is removed, well head is in opening-wide state, well head does not control equipment, and after borehole pressure recovers, borehole pressure is higher than atmospheric pressure, easily happen suddenly blowout, major accident occurs, thus oil field gas injection thermal production well exists potential potential safety hazard when changing well head, once there is blowout, easily cause into personnel's injury accident, it is necessary to put into substantial amounts of resource of speedily carrying out rescue work.Once generation blowout, will also result in crude oil and run off, also pollute the environment, cause heavy economic losses.
Summary of the invention
It is an object of the invention to design a kind of under blowout prevention blowout preventer under well head, oil field gas injection thermal production well is when changing well head, and borehole pressure is controlled, it is to avoid the generation of the problems referred to above, it is to avoid personnel's injury and economic loss.
The object of the present invention is achieved like this: includes interior pipe, rotary anchoring device, slips support, slips, cone, packing element, glue tube base, slips support, cone, packing element is sleeved on outside interior pipe, slips is installed between slips support and cone, the upper suspension of slips is in slips support, the bottom of slips reaches in the slip groove being connected on cone, the taper surface of slips contacts with the taper surface cooperation of cone, glue tube base is installed in the bottom of packing element, glue tube base connects on inner pipe, interior Guan Shangyou pulls screw thread, the female thread of rotary anchoring device pulls threaded engagement with described, the bottom of rotary anchoring device is connected with the top of slips support, rotary anchoring device can precession on inner pipe.
Cone and packing element link into an integrated entity, and the bottom of packing element is conical bore, and the top of glue tube base is cone, and described conical bore and described conical sleeve are fitted together.
The invention has the beneficial effects as follows: the present invention is arranged in the sleeve pipe under the well head of oil field gas injection thermal production well, at ground rotating inner tube, rotary anchoring device is anchored on sleeve pipe, the strong point is become after making it motionless, continue rotating inner tube, under pulling threaded function, interior pipe is upwards walked, first the Distance Shortened between slips support and cone is made, under the taper surface effect of cone, slips is pushed out card jail on sleeve pipe, continue rotating inner tube, interior pipe continues up walking, glue tube base compression packing element, packing element expansion is made to seal up sleeve pipe, make the liquid stream having pressure in well can not erupt to ground, surface well port part does not have pressure, replacing that can be safe turns takes out wellhead assembly, blowout will not be there is, overcome the potential safety hazard that presently, there are, generation personnel's injury accident and heavy economic losses can be avoided, there is significant economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the installation diagram of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with Fig. 1, the embodiment of the present invention is illustrated.
As shown in Figure 1, the example of executing of the present invention includes interior pipe 1, rotary anchoring device 2, slips support 3, slips 4, cone 5, packing element 6, glue tube base 7, slips support 3, cone 5, packing element 6 is sleeved on outside interior pipe 1, slips 4 is installed between slips support 3 and cone 5, the upper suspension of slips 4 is in slips support 3, slips 4 can be displaced outwardly, but will not come off slips support 3, the bottom of slips 4 reaches in the slip groove being connected on cone 5, the taper surface of slips 4 contacts with the taper surface cooperation of cone 5, slips 4 can be walked in described slip groove, just (identical with the structure of packer) is not come off, glue tube base 7 is installed in the bottom of packing element 6, glue tube base 7 is connected on interior pipe 1, interior pipe 1 pulls screw thread 8, the female thread of rotary anchoring device 2 and the described screw thread 8 that pulls screw, the bottom of rotary anchoring device 2 is connected with the top of slips support 3, rotary anchoring device 2 can precession on interior pipe 1.Cone 5 and packing element 6 link into an integrated entity, and the bottom of packing element 6 is conical bore, and the top of glue tube base 7 is cone, and described conical bore and described conical sleeve are fitted together, and glue tube base 7 contract enters in packing element 6, makes packing element 6 be easier to dilatating and deformable.
Rotary anchoring device 2 is existing matured product, and rotary anchoring device 2 is also called turnover panel anchor by scene.
The present invention is arranged in the sleeve pipe under the well head of oil field gas injection thermal production well, at ground rotating inner tube 1, rotary anchoring device 2 is anchored on sleeve pipe, the strong point is become after making it motionless, continue rotating inner tube 1, under the effect pulling screw thread 8, interior pipe 1 is upwards walked, first the Distance Shortened between slips support 3 and cone 5 is made, under the taper surface effect of cone 5, slips 4 is pushed out card jail on sleeve pipe, continue rotating inner tube 1, interior pipe 1 continues up walking, glue tube base 7 compresses packing element 6, packing element 6 expansion is made to seal up sleeve pipe, make the liquid stream having pressure in well can not erupt to ground.
Claims (2)
1. blowout prevention blowout preventer under well head under a kind, including interior pipe (1), rotary anchoring device (2), slips support (3), slips (4), cone (5), packing element (6), glue tube base (7), it is characterized in that: slips support (3), cone (5), packing element (6) is sleeved on interior pipe (1) outward, slips (4) is installed between slips support (3) and cone (5), the upper suspension of slips (4) is in slips support (3), the bottom of slips (4) reaches in the slip groove being connected on cone (5), the taper surface of slips (4) contacts with the taper surface cooperation of cone (5), glue tube base (7) is installed in the bottom of packing element (6), glue tube base (7) is connected on interior pipe (1), interior pipe (1) pulls screw thread (8), the female thread of rotary anchoring device (2) and the described screw thread (8) that pulls screw, the bottom of rotary anchoring device (2) is connected with the top of slips support (3), rotary anchoring device (2) can in the upper precession of interior pipe (1).
2. blowout prevention blowout preventer under well head under according to claim 1, it is characterized in that: cone (5) and packing element (6) link into an integrated entity, the bottom of packing element (6) is conical bore, and the top of glue tube base (7) is cone, and described conical bore and described conical sleeve are fitted together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610245573.XA CN105715226A (en) | 2016-04-20 | 2016-04-20 | Blowout-preventing well plugging device located under wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610245573.XA CN105715226A (en) | 2016-04-20 | 2016-04-20 | Blowout-preventing well plugging device located under wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105715226A true CN105715226A (en) | 2016-06-29 |
Family
ID=56161320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610245573.XA Pending CN105715226A (en) | 2016-04-20 | 2016-04-20 | Blowout-preventing well plugging device located under wellhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105715226A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237625A (en) * | 2017-08-02 | 2017-10-10 | 东营市兆鑫工贸有限责任公司 | Testing pressure of well head packer detecting device |
| CN110952947A (en) * | 2019-11-22 | 2020-04-03 | 白瑞义 | Wellhead sealing control device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100990A (en) * | 2006-07-05 | 2008-01-09 | 陈飞 | Down-hole screw pump oil production device |
| CN201269062Y (en) * | 2008-06-05 | 2009-07-08 | 东营市兆鑫工贸有限责任公司 | Dead well plugging device |
| US20140338926A1 (en) * | 2013-05-17 | 2014-11-20 | Benton Frederick Baugh | Recovery Type Pipeline Service Pig |
| CN104453758A (en) * | 2014-12-03 | 2015-03-25 | 中国石油天然气股份有限公司 | Multi-functional flap anchor |
| CN105350938A (en) * | 2015-12-14 | 2016-02-24 | 天津汇铸石油设备科技有限公司 | Mechanical packer |
| CN205605163U (en) * | 2016-04-20 | 2016-09-28 | 东营百华石油技术开发有限公司 | Preventing under well head spouts blowout preventer down |
-
2016
- 2016-04-20 CN CN201610245573.XA patent/CN105715226A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100990A (en) * | 2006-07-05 | 2008-01-09 | 陈飞 | Down-hole screw pump oil production device |
| CN201269062Y (en) * | 2008-06-05 | 2009-07-08 | 东营市兆鑫工贸有限责任公司 | Dead well plugging device |
| US20140338926A1 (en) * | 2013-05-17 | 2014-11-20 | Benton Frederick Baugh | Recovery Type Pipeline Service Pig |
| CN104453758A (en) * | 2014-12-03 | 2015-03-25 | 中国石油天然气股份有限公司 | Multi-functional flap anchor |
| CN105350938A (en) * | 2015-12-14 | 2016-02-24 | 天津汇铸石油设备科技有限公司 | Mechanical packer |
| CN205605163U (en) * | 2016-04-20 | 2016-09-28 | 东营百华石油技术开发有限公司 | Preventing under well head spouts blowout preventer down |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237625A (en) * | 2017-08-02 | 2017-10-10 | 东营市兆鑫工贸有限责任公司 | Testing pressure of well head packer detecting device |
| CN110952947A (en) * | 2019-11-22 | 2020-04-03 | 白瑞义 | Wellhead sealing control device |
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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 |
Application publication date: 20160629 |
|
| WD01 | Invention patent application deemed withdrawn after publication |