CN203516049U - Blowout preventer for pump tripping of oil well pump - Google Patents
Blowout preventer for pump tripping of oil well pump Download PDFInfo
- Publication number
- CN203516049U CN203516049U CN201320692367.5U CN201320692367U CN203516049U CN 203516049 U CN203516049 U CN 203516049U CN 201320692367 U CN201320692367 U CN 201320692367U CN 203516049 U CN203516049 U CN 203516049U
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- CN
- China
- Prior art keywords
- pump
- suspension joint
- plug
- joint
- guide channel
- 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 provides a blowout preventer for pump tripping of an oil well pump. A plunger is located in a pump cylinder; a plug is mounted in a suspension joint; the plug is matched with the suspension joint for sealing; the plug is fixed on the suspension joint by a shear pin; the lower part of the pump cylinder is connected with the upper part of the suspension joint; the plug is sleeved with a locking ring; a locking slot is formed in the lower part of the suspension joint; a communication hole is formed in the suspension joint; external threads in the lower part of the pump cylinder are connected with the upper part of a guide cylinder; the lower part of the guide cylinder is connected with the upper part of a lower joint, and tubing threads are formed in the lower part of the lower joint; a guide channel is formed between the guide cylinder and the suspension joint; a communication hole is communicated with the guide channel; the guide channel is communicated with the inside of the lower connector; and the plug can plug a channel of the suspension joint. A lower part high-pressure well liquid cannot enter the plug, the well liquid can be prevented from being blown out when the pump and a sucker rod are tripped, the guide channel enables crude oil to flow upwards from the interior of a pump tripping tubing, a packer can be produced during pump tripping, a pump valve component is not required to be improved, the structure is simple, and the reliability is high.
Description
Technical field
The utility model belongs to the equipment on oil field well oil well pump, is blowout hookup under a kind of oil pumping pump.
Background technique
Conventional oil-well pump oil inlet valve does not have blowout prevention function, can not prevent that well inner high voltage fluid is sprayed onto well head, Chinese patent 200820181654.9 < < oil intake valve of oil well pump capable of transferring pressure > > do not have blowout prevention function equally, Chinese patent 200520020030.5 < < spray-proof device of oil-well pump > >, for preventing that well inner high voltage fluid is sprayed onto well head design, but its complex structure, component are many, reliability does not reach requirement, when on pump, head of liquid is high, the elastic force of spring can not make its commutation, slide-valve can not separate with valve seat, cause oil well pump cisco unity malfunction.Chinese patent 201010172873.2 < < spurt-prevention filling valve of defueling pump > >, need to improve valve group, and performance difficulty, is difficult to promote the use of.
Summary of the invention
The purpose of this utility model is to provide blowout hookup under a kind of oil pumping pump, and while preventing lower pump and lower sucker rod, well liquid is through ejection in oil well pump.
The purpose of this utility model is achieved in that and comprises pump barrel, plunger, cut off, stop up, lock ring, suspension joint, guide shell, lower contact, plunger is in pump barrel, obstruction is arranged in suspension joint, stop up and suspension joint fitted seal, obstruction is fixed on suspension joint by cutting off, the bottom of pump barrel is connected with the top of suspension joint, suit lock ring in obstruction, locked groove is arranged at the bottom of suspension joint, on suspension joint, there is linked hole, the lower external thread of pump barrel is connected with the top of guide shell, the bottom of guide shell is connected with the top of lower contact, tubing round thread is arranged at the bottom of lower contact, between guide shell and suspension joint, there is guide channel, linked hole communicates with guide channel, guide channel communicates with lower contact inside.
The beneficial effects of the utility model are: obstruction can be blocked the passage of suspension joint, bottom high-pressure well liquid can not enter on obstruction, in the time of can preventing lower pump and lower sucker rod, well liquid is through ejection in oil well pump, guide channel can make the inner upwards inflow of crude oil oil pipe from pump, under pump, can be with packet to produce, do not need to improve pump valve assembly, simple in structure, reliability is high.
Accompanying drawing explanation
Accompanying drawing is the utility model embodiment's assembling half sectional view.
Embodiment
First by reference to the accompanying drawings embodiment of the present utility model is described below.
As seen from the figure, embodiment of the present utility model comprises pump barrel 1, plunger 2, cut off 3, stop up 4, lock ring 5, suspension joint 6, guide shell 10, lower contact 11, plunger 2 is in pump barrel 1, stopping up 4 is arranged in suspension joint 6, obstruction 4 and suspension joint 6 fitted seal, stopping up 4 is fixed on suspension joint 6 by cutting off 3, the bottom of pump barrel 1 is connected with the top of suspension joint 6, stop up on 4 and be set with lock ring 5, locked groove 9 is arranged at the bottom of suspension joint 6, on suspension joint 6, there is linked hole 7, the lower external thread of pump barrel 1 is connected with the top of guide shell 10, the bottom of guide shell 10 is connected with the top of lower contact 11, tubing round thread is arranged at the bottom of lower contact 11, between guide shell 10 and suspension joint 6, there is guide channel 8, linked hole 7 communicates with guide channel 8, guide channel 8 communicates with lower contact 11 inside, its crude oil tail pipe from pump is made progress in inflow pump, can be with packet to carry out layering and adopt Shan.
Pump barrel 1, cut off 3, stop up 4, lock ring 5, suspension joint 6, guide shell 10, lower contact 11 be first with oil pipe G.I.H on pump, obstruction 4 can be blocked the passage of suspension joint 6, bottom high-pressure well liquid can not enter and stop up on 4, and when lower pump and sucker rod, well liquid can be through ejection in oil well pump.After be lowered to the sucker rod of bottom band plunger 2, while touching pump, plunger 2 is pressed in and stops up on 4, making to cut off 3 is cut off, obstruction 4 falls to the bottom of suspension joint 6, stop up 9 li of the locked grooves that lock ring 5 on 4 enters suspension joint 6 bottoms, make to stop up 4 up obstruction feed pathway more not, during oil pumping, well liquid enters by oil well pump and extracts out through inside, guide channel 8, the linked hole 7 of lower contact 11.
Claims (1)
1. blowout hookup under an oil pumping pump, comprise pump barrel (1), plunger (2), cut off (3), stop up (4), lock ring (5), suspension joint (6), guide shell (10), lower contact (11), plunger (2) is in pump barrel (1), stopping up (4) is arranged in suspension joint (6), stop up (4) and suspension joint (6) fitted seal, stopping up (4) is fixed on suspension joint (6) by cutting off (3), it is characterized in that: the bottom of pump barrel (1) is connected with the top of suspension joint (6), stop up (4) upper suit lock ring (5), locked groove (9) is arranged at the bottom of suspension joint (6), on suspension joint (6), there is linked hole (7), the lower external thread of pump barrel (1) is connected with the top of guide shell (10), the bottom of guide shell (10) is connected with the top of lower contact (11), tubing round thread is arranged at the bottom of lower contact (11), between guide shell (10) and suspension joint (6), there is guide channel (8), linked hole (7) communicates with guide channel (8), guide channel (8) communicates with lower contact (11) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320692367.5U CN203516049U (en) | 2013-10-28 | 2013-10-28 | Blowout preventer for pump tripping of oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320692367.5U CN203516049U (en) | 2013-10-28 | 2013-10-28 | Blowout preventer for pump tripping of oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516049U true CN203516049U (en) | 2014-04-02 |
Family
ID=50374987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320692367.5U Expired - Fee Related CN203516049U (en) | 2013-10-28 | 2013-10-28 | Blowout preventer for pump tripping of oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999592A (en) * | 2018-07-26 | 2018-12-14 | 中国石油天然气股份有限公司 | Underground blowout prevention switch with testing channel for pumping unit monitoring well |
-
2013
- 2013-10-28 CN CN201320692367.5U patent/CN203516049U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999592A (en) * | 2018-07-26 | 2018-12-14 | 中国石油天然气股份有限公司 | Underground blowout prevention switch with testing channel for pumping unit monitoring well |
| CN108999592B (en) * | 2018-07-26 | 2020-11-24 | 中国石油天然气股份有限公司 | Underground blowout prevention switch with testing channel for pumping unit monitoring well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20141028 |
|
| EXPY | Termination of patent right or utility model |