CN110513070A - Turnover plate type down-hole oil tube liquid controlled blowout preventing device - Google Patents
Turnover plate type down-hole oil tube liquid controlled blowout preventing device Download PDFInfo
- Publication number
- CN110513070A CN110513070A CN201910923902.5A CN201910923902A CN110513070A CN 110513070 A CN110513070 A CN 110513070A CN 201910923902 A CN201910923902 A CN 201910923902A CN 110513070 A CN110513070 A CN 110513070A
- Authority
- CN
- China
- Prior art keywords
- top connection
- hole
- housing
- turnover panel
- eccentric orfice
- 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
- 230000007306 turnover Effects 0.000 title claims abstract description 38
- 239000007788 liquid Substances 0.000 title claims abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 2
- 239000003921 oil Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction 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
- E21B33/02—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
A kind of turnover plate type down-hole oil tube liquid controlled blowout preventing device, including top connection, housing and lower contact, top connection eccentric orfice is equipped on the tube wall of top connection side, spring is installed in top connection eccentric orfice and compresses pin shaft, centre bore lower end inner circumferential tight fit in top connection installs copper ring, the top connection inner hole lower end is equipped with positioning device, is equipped with alignment pin in the hole of positioning device, alignment pin is also cross the hole on turnover panel；Be equipped on the tube wall of the housing side with housing eccentric orfice, return plunger is installed in hole, is respectively provided with sealing ring in the upper and lower part of the return plunger；Level pressure shear pin is equipped with by screw thread on the outer set, which visits into the hole being located in the middle part of the return plunger.The invention has the advantages that during playing lower tubular column, channel be all it is closed, well liquid will not be gushed inside tubing string to ground, from face avoid therefore and caused by pollution, and in normal operation, channel, which is open, can guarantee normally to produce.
Description
Technical field
The present invention relates to a kind of turnover plate type down-hole oil tube liquid controlled blowout preventing device and the blowout prevention method based on the device, it is related to
Field use technical field belongs to during a kind of oil field production operation needed lower tubular column, prevents well liquid from spraying out of tubing string
Device.
Background technique
Currently, rod-pumped well needs the tubing string for being connected into oil pipe to transfer to shaft bottom, tubing string before normal production operation
Lower section is installed with oil well pump and other downhole tools, and tubing string inner hole is the channel that roofbolt pumps, while being also well liquid
The channel of discharge needs unobstructed during the work time.Need to put forward roofbolt out of tubing string in workover treatment, then again
Oil well pump out, could be proposed that ground is overhauled, so producing when needing operation and normally it from underground by tubing string
It is preceding to have carried out lower tubular column operation.
It is low that down-hole formation pressure has height to have, and for some low pressure wells, liquid level is well below well head in well, in upper lifting pipe post mistake
It needs to release the crude oil in tubing string in underground in journey, prevents from taking ground to polluting.And for some high-pressure wells, well internal pressure
Power constantly lifts well liquid and sprays well head, so the well liquid in well constantly can spray ground inside tubing string during playing lower tubular column
Face not only will cause ground pollution, and there is also many security risks.
This just needs to close tubing string inner hole when to well inner lower tube column, and it is smooth to need to fully open guarantee during the work time
It is logical, then blocked again before workover treatment upper lifting pipe post.The device for being provided simultaneously with these three functions can complete this
A work.
The prior art cannot complete this whole operation process well, have many devices to can be only done single one and go into the well
Closing movement, when upper lifting pipe post, can not close tubing string inner hole, therefore often result in well liquid and spray ground, cause seriously to pollute and peace
Full hidden danger.
Summary of the invention
To overcome the shortcomings of existing technologies, the present invention provides a kind of turnover plate type down-hole oil tube liquid controlled blowout preventing device, Ke Yian
Mounted in any position of the above tubing string of oil well pump.
The technical scheme is that a kind of turnover plate type down-hole oil tube liquid controlled blowout preventing device, including top connection, housing and under
Connector, the both ends of housing pass through screw thread respectively and connect with top connection and lower contact, between the top connection and housing and housing
O-ring seal is respectively provided between lower contact, which is characterized in that it is eccentric that top connection is equipped on the tube wall of the top connection side
Hole is equipped with spring in the top connection eccentric orfice and compresses pin shaft, the centre bore lower end inner circumferential tight fit in the top connection
Copper ring is installed, which is equipped with alignment pin in the hole of positioning device by being installed by welding with positioning device,
Alignment pin is also cross the hole on turnover panel；It is equipped with and the top connection eccentric orfice pair on the tube wall of the housing side
The housing eccentric orfice answered is equipped with return plunger in the housing eccentric orfice, fills respectively in the upper and lower part of the return plunger
There are upper O-ring seal and lower O-ring seal；Level pressure shear pin is equipped with by screw thread on the outer set, the level pressure shear pin) front end spy
Into in the hole being located in the middle part of the return plunger.
The invention has the advantages that rise lower tubular column during, channel be all it is closed, well liquid will not gush inside tubing string
To ground, from face avoid therefore and caused by pollution, and in normal operation, channel be open can guarantee it is normal
Production.
Detailed description of the invention
Fig. 1 is agent structure schematic diagram of the invention；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is use state when Fig. 1 goes into the well with reference to figure；
Fig. 4 is the enlarged drawing in Fig. 3 at B；
Fig. 5 is state reference map when Fig. 1 is worked normally；
Fig. 6 is the enlarged drawing in Fig. 5 at C；
State reference map when Fig. 7 is Fig. 1 upper lifting pipe post；
Fig. 8 is the enlarged drawing in Fig. 7 at D.
Specific embodiment
The invention will now be further described with reference to specific embodiments, the advantages and features of the present invention will be with description and
It is apparent.But examples are merely exemplary for these, and it is not intended to limit the scope of the present invention in any way.Those skilled in the art
Member it should be understood that without departing from the spirit and scope of the invention can details to technical solution of the present invention and form into
Row modifications or substitutions, but these modifications and replacement are fallen within the protection scope of the present invention.
Referring to Fig. 1-Fig. 8, the present invention relates to a kind of turnover plate type down-hole oil tube liquid controlled blowout preventing device, including it is top connection 1, O-shaped
Sealing ring 2, spring 4, compresses pin shaft 5, is copper ring 6, positioning device 7, alignment pin 8, turnover panel 9, return plunger 10, O-shaped housing 3
Sealing ring 11, level pressure shear pin 12, O-ring seal 13, lower contact 14, O-ring seal 15,1 outer diameter of top connection are equipped with O-shaped
Sealing ring 2, top connection 1 are connect by screw thread with housing 3, are sealed between top connection 1 and housing 3 by O-ring seal 2, at this
The tube wall of 1 side of top connection is equipped with top connection eccentric orfice, is provided with spring 4 in the top connection eccentric orfice and compresses pin shaft 5, on
1 inner hole lower end of connector is by being installed by welding with the inside and outside contour of positioning device 7(positioning device 7 and the profile of 1 lower end surface of top connection
It is corresponding), alignment pin 8 is installed in the hole of positioning device 7, also cross the hole on turnover panel 9, described turns over alignment pin 8
Plate 9 is located in positioning device 7 by alignment pin 8；It is equipped on the tube wall of 3 side of housing inclined with the top connection
The corresponding housing eccentric orfice in heart hole is provided with return plunger 10 in the housing eccentric orfice, on the top of the return plunger 10 under
Portion is separately installed with O-ring seal 11 and lower O-ring seal 13, is equipped with level pressure shear pin 12 by screw thread on housing 3, described
12 front end of level pressure shear pin visit into the hole in return plunger 10 (hole be located at upper O-ring seal 11 and lower O-ring seal 13 it
Between), lower contact 14 is connected through a screw thread below the housing 3, and O-ring seal 15 is installed in lower contact 14.
4 push of spring compresses pin shaft 5 and is pressed on the turnover panel 9, and turnover panel 9 is installed on the position of alignment pin 8
It is provided with cam wedge angle TLJJ.
The turnover panel 9 can be rotated around alignment pin 8, copper ring of the turnover panel 9 when going to horizontal position and in top connection 1
6 notes are tight, and the channel that turnover panel 9 gets out of the way 6 inner hole of copper ring when going to vertical position completely is attached on 3 inner wall of housing.
The working principle of the invention is: as shown in Figure 3 and Figure 4, during going into the well, turnover panel 9 is in a horizontal position, and upper
6 note of copper ring on connector 1 is tight, on the cam wedge angle TLJJ that 4 push of spring compresses that pin shaft 5 is pressed in turnover panel 9, with alignment pin 8
Lever force is generated for fulcrum, guarantees that turnover panel 9 rests on this horizontal position, well liquid is enclosed in 9 lower section of turnover panel, turnover panel 9 exists at this time
It can be close to even closer with copper ring 6 under the action of well liquid pressure, prevent well liquid from spraying upwards.
As shown in Figure 5 and Figure 6, when needing to work normally, decentralization roofbolt GZ contacts turnover panel 9, under roofbolt GZ gravity,
Turnover panel 9 is opened, turnover panel 9 returns to vertical position and is attached on 3 inner wall of housing, and channel is opened and be can work normally, in 4 push pressure of spring
Bearing pin 5 is pressed on the cam wedge angle TLJJ of turnover panel 9, is that fulcrum generates lever force with alignment pin 8, is guaranteed that turnover panel 9 rests on
This horizontal position.
As shown in Figure 7 and Figure 8, when needing upper lifting pipe post, first roofbolt GZ is proposed out of tubing string, then by into tubing string
It suppresses, pushes 10 uplink of return plunger, cut level pressure shear pin 12, the return plunger 10 runs up promotion under thrust
Turnover panel 9 raises upwards, and turnover panel 9 is finally pushed to horizontal position by return plunger, and channel is again switched off, and liquid in tubing string is closed
In the well below of turnover panel 9.
Claims (3)
1. a kind of turnover plate type down-hole oil tube liquid controlled blowout preventing device, including top connection (1), housing (3) and lower contact (14), housing
(3) both ends pass through screw thread respectively and connect with top connection (1) and lower contact (14), between the top connection (1) and housing (3),
And O-ring seal (2,15) are respectively provided between housing (3) and lower contact (14), which is characterized in that in the top connection (1) one
The tube wall of side is equipped with top connection eccentric orfice, and spring (4) is equipped in the top connection eccentric orfice and compresses pin shaft (5), at this
Centre bore lower end inner circumferential tight fit in top connection (1) installs copper ring (6), which passes through welding installation
Have positioning device (7), be equipped in the hole of positioning device (7) alignment pin (8), alignment pin (8) is also cross on turnover panel (9)
Hole；Housing eccentric orfice corresponding with the top connection eccentric orfice is equipped on the tube wall of described housing (3) side, at this
Return plunger (10) are installed in housing eccentric orfice, are respectively provided with upper O-shaped sealing in the upper and lower part of the return plunger (10)
Enclose (11) and lower O-ring seal (13)；Level pressure shear pin (12) are equipped with by screw thread on the housing (3), the level pressure shear pin
(12) front end is visited into the hole being located in the middle part of the return plunger (10).
2. turnover plate type down-hole oil tube liquid controlled blowout preventing device according to claim 1, which is characterized in that the spring (4)
Push compresses pin shaft (5) and is pressed on the turnover panel (9), is provided with cam wedge angle on the position of the installation of turnover panel 9 alignment pin (8)
(TLJJ).
3. turnover plate type down-hole oil tube liquid controlled blowout preventing device according to claim 2, which is characterized in that the turnover panel (9)
It is located on positioning device (7) by alignment pin (8), the turnover panel (9) can be rotated around alignment pin (8), and described turns over
Plate (9) is adjacent to when going to horizontal position with the copper ring (6) on top connection (1), and the turnover panel (9) is when going to vertical position
The channel for getting out of the way copper ring (6) inner hole completely is attached on housing (3) inner wall.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910866550 | 2019-09-12 | ||
| CN2019108665504 | 2019-09-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110513070A true CN110513070A (en) | 2019-11-29 |
| CN110513070B CN110513070B (en) | 2024-02-02 |
Family
ID=68633815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910923902.5A Active CN110513070B (en) | 2019-09-12 | 2019-09-27 | Flap type downhole oil pipe hydraulic control blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110513070B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648736A (en) * | 2020-06-03 | 2020-09-11 | 中国石油化工股份有限公司 | Diameter-variable mill shoe for well repair and pipe column assembly using same |
| CN115217752A (en) * | 2022-06-22 | 2022-10-21 | 中国石油大学(北京) | Plunger piston |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH182445A (en) * | 1935-06-28 | 1936-02-15 | Kunz Max | Measuring apparatus, in particular water meters. |
| WO1991006743A1 (en) * | 1989-10-24 | 1991-05-16 | Lineham Donald H | Bottom hole blowout preventer |
| CN2690582Y (en) * | 2004-04-12 | 2005-04-06 | 新疆石油管理局钻井工艺研究院 | Under balance underwell well sealing device |
| CN201050341Y (en) * | 2007-06-08 | 2008-04-23 | 苑洪君 | Double safety casing inclined guiding check valve |
| CN201141294Y (en) * | 2008-04-21 | 2008-10-29 | 关晓东 | Movable plug |
| CN201902192U (en) * | 2010-06-02 | 2011-07-20 | 西南石油大学 | Float valve type underground blowout preventer |
| CN102628348A (en) * | 2012-05-03 | 2012-08-08 | 中国石油集团西部钻探工程有限公司 | Tubular tubing float valve |
| CN103481220A (en) * | 2013-09-23 | 2014-01-01 | 北京北方车辆集团有限公司 | Cam type pressing device |
| CN109779562A (en) * | 2019-03-12 | 2019-05-21 | 康庆刚 | Down-hole oil tube liquid controlled blowout preventing device |
| CN210858637U (en) * | 2019-09-12 | 2020-06-26 | 康庆刚 | Turning plate type underground oil pipe hydraulic control blowout preventer |
-
2019
- 2019-09-27 CN CN201910923902.5A patent/CN110513070B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH182445A (en) * | 1935-06-28 | 1936-02-15 | Kunz Max | Measuring apparatus, in particular water meters. |
| WO1991006743A1 (en) * | 1989-10-24 | 1991-05-16 | Lineham Donald H | Bottom hole blowout preventer |
| CN2690582Y (en) * | 2004-04-12 | 2005-04-06 | 新疆石油管理局钻井工艺研究院 | Under balance underwell well sealing device |
| CN201050341Y (en) * | 2007-06-08 | 2008-04-23 | 苑洪君 | Double safety casing inclined guiding check valve |
| CN201141294Y (en) * | 2008-04-21 | 2008-10-29 | 关晓东 | Movable plug |
| CN201902192U (en) * | 2010-06-02 | 2011-07-20 | 西南石油大学 | Float valve type underground blowout preventer |
| CN102628348A (en) * | 2012-05-03 | 2012-08-08 | 中国石油集团西部钻探工程有限公司 | Tubular tubing float valve |
| CN103481220A (en) * | 2013-09-23 | 2014-01-01 | 北京北方车辆集团有限公司 | Cam type pressing device |
| CN109779562A (en) * | 2019-03-12 | 2019-05-21 | 康庆刚 | Down-hole oil tube liquid controlled blowout preventing device |
| CN210858637U (en) * | 2019-09-12 | 2020-06-26 | 康庆刚 | Turning plate type underground oil pipe hydraulic control blowout preventer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648736A (en) * | 2020-06-03 | 2020-09-11 | 中国石油化工股份有限公司 | Diameter-variable mill shoe for well repair and pipe column assembly using same |
| CN115217752A (en) * | 2022-06-22 | 2022-10-21 | 中国石油大学(北京) | Plunger piston |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110513070B (en) | 2024-02-02 |
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