CN202755942U - Simple blowout preventer - Google Patents
Simple blowout preventer Download PDFInfo
- Publication number
- CN202755942U CN202755942U CN 201220363927 CN201220363927U CN202755942U CN 202755942 U CN202755942 U CN 202755942U CN 201220363927 CN201220363927 CN 201220363927 CN 201220363927 U CN201220363927 U CN 201220363927U CN 202755942 U CN202755942 U CN 202755942U
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- CN
- China
- Prior art keywords
- flange
- sucker rod
- upper flange
- lower flange
- rod threaded
- 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
A simple blowout preventer comprises a blowout prevention cap and a blowout prevention seat. The blowout prevention cap and the blowout prevention seat comprise two flanges connected by two symmetrical bolts, the upper flange is a blind flange, two sucker rod threaded holes which are not communicated with each other are symmetrically arranged on the upper side and the lower side of the center of the blind flange, the upper sucker rod threaded hole is connected with a lifting sucker rod nipple, the lower sucker rod threaded hole is connected with a sucker rod string in a well, two symmetrical bolt concave clamp lugs are arranged on the left side and the right side of the upper flange, and a sealing steel ring groove is arranged in the circumference of the lower sucker rod threaded hole. An oil tube threaded hole is arranged in the center of the lower flange, a sealing steel ring groove corresponding to the sealing steel ring groove of the upper flange is arranged on the circumference of the oil tube threaded hole, concave clamp lugs corresponding to the concave clamp lugs of the upper flange are arranged on two sides of the lower flange, a fixing shaft is transversely and upwardly arranged in the middle of each concave clamp lug of the lower flange, the bolts capable of being rotationally quickly connected with the upper flange are arranged on the fixing shafts, the upper flange and the lower flange are integrally connected with each other by the bolts and nuts, and a sealing steel ring is arranged between the upper flange and the lower flange.
Description
Technical field
The utility model relates to the simple and easy blowout hookup that prevents blowout in a kind of oilfield operation process, solves the prior art complex structure, the slow-footed problem of shunting in a well.
Background technology
Stablizing of field output be unable to do without the down-hole workover treatment, and along with continually developing of oil field, the well-repairing work amount also increases gradually, and a year operation pumpingh well workload is about more than 2500 mouthfuls, and well control and efforts at environmental protection are also more and more important; In the well workover industry, technical requirements to prevention and uniform blowout is very strict, this has just improved the standard-required to well-repairing work, the spray instrument is robbed in effective special use that well control work be unable to do without under the various blowout situations, if there is not the special tool of adaptation, just limited when blowout occurs and has robbed carrying out smoothly of spray work, lost the quality time of uniform blowout, the accident that makes that an oil well blew out causes the loss of state owned property, causes simultaneously environment pollution.
Summary of the invention
The purpose of this utility model provides a kind of simple and easy blowout hookup, solves the defective that above-mentioned prior art exists.
The technical solution of the utility model is achieved in the following ways:
The utility model comprises anti-gushing cap and anti-spray seat, it is characterized in that anti-gushing cap and anti-spray seat are made as by symmetrical two bolted two flanges forms, upper flange is made as blind flange, be arranged with up and down two disconnected sucker rod threaded bore at the blind flange center, upper sucker rod threaded bore connects the lifting sucker rod substitute, sucker rod roofbolt in the lower sucker rod threaded bore connecting well, be provided with two symmetrical bolt spill card ears in the upper flange left and right sides, be provided with the ring gasket groove in the ring week of lower sucker rod threaded bore; Be provided with the tubing round thread hole at the center of lower flange, be provided with the ring gasket groove corresponding with upper flange ring gasket groove the ring week in tubing round thread hole, be provided with the spill card ear corresponding with the spill card ear of upper flange in the lower flange both sides, middle part at lower flange spill card ear transversely is provided with a fixed axis, be provided with the rotating bolt that is connected fast with upper flange at fixed axis, by bolt nut upper lower flange is integrally connected, between upper lower flange, is provided with ring gasket.
That compared with the prior art the utility model has is simple in structure, be convenient to install, the efficiently advantage of shunting in a well, and has prevented the generation of gas blowout accident in the actuating oil-pumping unit process.
Description of drawings
Fig. 1-structural representation of the present utility model;
Fig. 2 is the top view of Fig. 1;
1-anti-gushing cap among Fig. 1,2-prevents spray seat, 3-bolt, 4-ring gasket.
The specific embodiment:
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:
The utility model comprises anti-gushing cap 1 and anti-spray seat 2, anti-gushing cap 1 be connected that spray seat 2 is made as two flanges that connected by symmetrical two bolts 3 and forms, upper flange is made as blind flange, be arranged with up and down two disconnected sucker rod threaded bore at the blind flange center, upper sucker rod threaded bore connects the lifting sucker rod substitute, sucker rod roofbolt in the lower sucker rod threaded bore connecting well, be provided with two symmetrical bolt spill card ears in the upper flange left and right sides, be provided with the ring gasket groove in the ring week of lower sucker rod threaded bore; Be provided with the tubing round thread hole at the center of lower flange, be provided with the ring gasket groove corresponding with upper flange ring gasket groove the ring week in tubing round thread hole, be provided with the spill card ear corresponding with the spill card ear of upper flange in the lower flange both sides, middle part at lower flange spill card ear transversely is provided with a fixed axis, be provided with the rotating bolt 3 that is connected fast with upper flange at fixed axis, by bolt nut upper lower flange is integrally connected, between upper lower flange, is provided with ring gasket 4.
When using the utility model, if rise or the process of lower sucker rod in, the pressure indication of finding weight indicator has ANOMALOUS VARIATIONS, load has the phenomenon that lightens, this just means is the omen that blowout occurs, should stop immediately or lower sucker rod, first the utility model is connected, connect promoting pup joint of sucker rod and anti-gushing cap 1, sling with working rig, be enclosed within on the sucker rod that exposes well head, aim at the sucker rod screwed hole of anti-gushing cap 1, loosening bolt 3 separates anti-gushing cap 1 and anti-spray seat 2, hand rest is lived anti-spray seat 2, place it on the square clamp of the card sucker rod on the wellhead tee joint, rotary lifting pumping rod short circuit again, the drive anti-gushing cap rotates, and anti-gushing cap and the sucker rod that exposes well head are connected, and bears sucker rod tubing string load in the oil well, lay down the square clamp on the wellhead tee joint, the anti-spray seat one that is threaded with wellhead tee joint, make anti-spray seat 2 aim at the bearing load of little loose working rig with the card ear of anti-gushing cap 1, anti-gushing cap 1 forces together with anti-spray seat 2 and ring gasket 4 make-ups, buckle the bolt nut compressing, finish the installation of simple and easy preventer, prevented the generation of the blowout serious accident that cause on the sucker rod roofbolt ejection ground in the oil well.
Claims (1)
1. simple and easy blowout hookup, comprise anti-gushing cap and anti-spray seat, it is characterized in that anti-gushing cap and anti-spray seat are made as by symmetrical two bolted two flanges forms, upper flange is made as blind flange, be arranged with up and down two disconnected sucker rod threaded bore at the blind flange center, upper sucker rod threaded bore connects the lifting sucker rod substitute, sucker rod roofbolt in the lower sucker rod threaded bore connecting well, be provided with two symmetrical bolt spill card ears in the upper flange left and right sides, be provided with the ring gasket groove in the ring week of lower sucker rod threaded bore; Be provided with the tubing round thread hole at the center of lower flange, be provided with the ring gasket groove corresponding with upper flange ring gasket groove the ring week in tubing round thread hole, be provided with the spill card ear corresponding with the spill card ear of upper flange in the lower flange both sides, middle part at lower flange spill card ear transversely is provided with a fixed axis, be provided with the rotating bolt that is connected fast with upper flange at fixed axis, by bolt nut upper lower flange is integrally connected, between upper lower flange, is provided with ring gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220363927 CN202755942U (en) | 2012-07-26 | 2012-07-26 | Simple blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220363927 CN202755942U (en) | 2012-07-26 | 2012-07-26 | Simple blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202755942U true CN202755942U (en) | 2013-02-27 |
Family
ID=47735129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220363927 Expired - Fee Related CN202755942U (en) | 2012-07-26 | 2012-07-26 | Simple blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202755942U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108612502A (en) * | 2018-04-23 | 2018-10-02 | 刘洪俊 | A kind of production tree easy to assembly, fixation and operating method |
| CN109339730A (en) * | 2018-12-13 | 2019-02-15 | 美钻深海能源科技研发（上海）有限公司 | A test blind flange for protecting metal sealing ring and sealing method of blowout preventer |
-
2012
- 2012-07-26 CN CN 201220363927 patent/CN202755942U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108612502A (en) * | 2018-04-23 | 2018-10-02 | 刘洪俊 | A kind of production tree easy to assembly, fixation and operating method |
| CN109339730A (en) * | 2018-12-13 | 2019-02-15 | 美钻深海能源科技研发（上海）有限公司 | A test blind flange for protecting metal sealing ring and sealing method of blowout preventer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20130726 |