CN2816339Y - Well controlled blowout-proof device - Google Patents
Well controlled blowout-proof device Download PDFInfo
- Publication number
- CN2816339Y CN2816339Y CN 200520031052 CN200520031052U CN2816339Y CN 2816339 Y CN2816339 Y CN 2816339Y CN 200520031052 CN200520031052 CN 200520031052 CN 200520031052 U CN200520031052 U CN 200520031052U CN 2816339 Y CN2816339 Y CN 2816339Y
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- CN
- China
- Prior art keywords
- upper flange
- flange
- pipe nipple
- blowout
- hollow hole
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a well control blowout preventer, which is composed of a lifting pipe nipple, a ball valve, an upper flange, a lower flange and a sealing ring, wherein the lifting pipe nipple is a hollow pipe; the ball valve is installed in a hollow hole of the lifting pipe nipple; the lifting pipe nipple is connected to the inside of a hollow hole on the upper end of the upper flange through screw threads; a tubing pipe nipple is connected to the inside of a hollow hole on the lower end of the upper flange through screw threads; the sealing rubber ring is installed in annular space of the lower flange and the tubing pipe nipple; the upper and the lower flanges are connected into one body through connection carrying filaments. The utility model has the advantages of simple structure, quick installation, convenient operation, etc. When the blowout of an oil well occurs, the utility model can overwhelm the blowout effectively and quickly so that environmental pollution and safety misadventure hidden danger caused by blowout are avoided.
Description
Technical field: the utility model relates to a kind of well control blowout hookup, belongs to workover treatment aid in down-hole in the technical field of petroleum extraction.
Background technology: underground work divides two kinds of overhaul, light maintenances, and minor repair well all will be loaded onto self-packer when removing oil pipe, prevents that the smallclothes instrument from falling in the well, when blowout takes place, self-packer is laid down, and robs spray apparatus otherwise can't install.Laying down self-packer needs the regular hour, can postpone so undoubtedly to rob the spray time, and production brings potential safety hazard to oil well, and pollutes the oil well surrounding enviroment, increases the oil well operating cost.
Summary of the invention: the utility model is in order to realize changing when removing oil pipe generation blowout in the oil well operation, need not to unload self-packer, just can reaching the purpose of robbing spray fast.
The utility model is made up of lifting sub, ball valve, upper flange, lower flange, joint ring, lifting sub is a hollow tube, ball valve is installed in the hollow hole of lifting sub, lifting sub is by in the hollow hole that is threaded in the upper flange upper end, the hollow hole of upper flange lower end is interior by the tubing nipple that has been threaded, in the annular space of lower flange and tubing nipple sealed rubber ring is installed, upper and lower flange connects as one by connecting a year silk.
The utility model can be subdued blowout fast and effectively by the keying of the ball valve in its lifting sub when an oil well blew out, thereby reduce environment pollution and contingent accident potential that blowout brings, have simple in structure, quick for installation, simple operation and other advantages.
Description of drawings: Fig. 1: the utility model structural representation; Fig. 2: the utility model vertical view.
Among the figure: 1-lifting sub, 2-ball valve, 3-upper flange, 4-connect studding, 5-connects well head bolt, 6-lower flange, 7-sealed groove, 8-back taper wiper block, 9-oil connection, 10-sealed rubber ring, 11-handle.
The specific embodiment: the utility model is made up of lifting sub 1, ball valve 2, upper flange 3, lower flange 6, joint ring, lifting sub 1 is a hollow tube, ball valve 2 is installed in the hollow hole of lifting sub 1, lifting sub 1 is by in the hollow hole that is threaded in upper flange 3 upper ends, the lower end hollow hole of upper flange 3 is interior by the tubing nipple 9 that has been threaded, in the annular space of lower flange 6 and tubing nipple 9 sealed rubber ring 10 is installed, upper flange 3 lower flanges 6 connect as one by connecting a year silk 4.Be provided with handle 11 in the both sides of upper flange 3, the lower end of upper flange 3 is a back taper wiper block 8.
When carrying out workover treatment and remove oil pipe, when needs are prevented spraying construction, at first to be connected on tubing nipple 9 on the preventer according to OIH pipe standard, two people pick up handle 11, tubing nipple 9 is aimed at OIH pipe box cupling, rotation tightens, elevator is accomplished fluently at 1 place at lifting sub, with carrying lifting sub 1 and tubing string on the working rig, remove pipe elevator then, slowly transfer post, the steel ring slot that makes upper flange 3 is by the back taper wiper block) align with lower flange 6 steel ring slots, silk 4 is carried in last stressed joint, closes ball valve 2, can reach the purpose of control blowout.
When the needs open flow plays pipe, earlier ball valve 2 is opened, bled off the down-hole oil tube internal pressure, again the well head sleeve gate is opened, bleed off casing annulus pressure, lay down to connect and carry silk 4, elevator is got on the lifting sub 1, is slowly mentioned in upper flange 3 and the well by working rig and keeps a grip on, tubing nipple 9 plane to the lower flange 6 is proposed, stamp elevator, again upper flange 3 and tubing nipple 9 are laid down, for using next time.
Claims (2)
1, a kind of well control blowout hookup, by lifting sub (1), ball valve (2), upper flange (3), lower flange (6), joint ring is formed, upper flange (3) carries silk (4) connection with lower flange (6) by being connected, it is characterized in that: lifting sub (1) is a hollow tube, ball valve (2) is installed in the hollow hole of lifting sub (1), lifting sub (1) is by in the hollow hole that is threaded in upper flange (3) upper end, by the tubing nipple that has been threaded (9), in the annular space of lower flange (6) and tubing nipple (9), sealed rubber ring (10) is installed in the hollow hole of upper flange (3) lower end.
2, a kind of well control blowout hookup according to claim 1 is characterized in that the both sides of upper flange (3) are provided with handle (11), and upper flange (3) lower end is back taper wiper block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031052 CN2816339Y (en) | 2005-06-20 | 2005-06-20 | Well controlled blowout-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031052 CN2816339Y (en) | 2005-06-20 | 2005-06-20 | Well controlled blowout-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816339Y true CN2816339Y (en) | 2006-09-13 |
Family
ID=36996147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520031052 Expired - Fee Related CN2816339Y (en) | 2005-06-20 | 2005-06-20 | Well controlled blowout-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816339Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936144A (en) * | 2010-09-13 | 2011-01-05 | 中国海洋石油总公司 | Uphole pressure-bearing protective device |
| CN102251754A (en) * | 2011-06-14 | 2011-11-23 | 刘庆梅 | Blowout control tubing head with non-well-killing valve replacement |
| CN101718167B (en) * | 2009-12-01 | 2012-05-09 | 中国石油天然气集团公司 | Check valve device for out-of-control well |
| CN105370235A (en) * | 2015-12-15 | 2016-03-02 | 中国石油化工股份有限公司 | Wellhead sealing device |
| CN106761525A (en) * | 2016-12-19 | 2017-05-31 | 中国石油天然气股份有限公司 | Blowout control wellhead and blowout control method |
-
2005
- 2005-06-20 CN CN 200520031052 patent/CN2816339Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718167B (en) * | 2009-12-01 | 2012-05-09 | 中国石油天然气集团公司 | Check valve device for out-of-control well |
| CN101936144A (en) * | 2010-09-13 | 2011-01-05 | 中国海洋石油总公司 | Uphole pressure-bearing protective device |
| CN102251754A (en) * | 2011-06-14 | 2011-11-23 | 刘庆梅 | Blowout control tubing head with non-well-killing valve replacement |
| CN102251754B (en) * | 2011-06-14 | 2015-05-27 | 刘庆梅 | Blowout control tubing head with non-well-killing valve replacement |
| CN105370235A (en) * | 2015-12-15 | 2016-03-02 | 中国石油化工股份有限公司 | Wellhead sealing device |
| CN105370235B (en) * | 2015-12-15 | 2017-11-03 | 中国石油化工股份有限公司 | A kind of well top sealing device |
| CN106761525A (en) * | 2016-12-19 | 2017-05-31 | 中国石油天然气股份有限公司 | Blowout control wellhead and blowout control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |