CN203285352U - Blowout prevention joint of sucker rod for oil well operation - Google Patents
Blowout prevention joint of sucker rod for oil well operation Download PDFInfo
- Publication number
- CN203285352U CN203285352U CN2013203246485U CN201320324648U CN203285352U CN 203285352 U CN203285352 U CN 203285352U CN 2013203246485 U CN2013203246485 U CN 2013203246485U CN 201320324648 U CN201320324648 U CN 201320324648U CN 203285352 U CN203285352 U CN 203285352U
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- CN
- China
- Prior art keywords
- sucker rod
- oil well
- joint
- blowout
- well operation
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- 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 blowout prevention joint of a sucker rod for oil well operation comprises an upper joint (1), an upward-discharging segment (2), phi-73mm flat oil pipe external threads (3) and a lower joint (4). The blowout prevention joint of the sucker rod for oil well operation is characterized in that the blowout prevention joint of the sucker rod for oil well operation is of a stepped cylinder structure, the diameter of the middle upward-discharging segment (2) and the diameter of the portion with the phi-73mm flat oil pipe external threads (3) are larger than the diameter of the upper joint (1) and the diameter of the lower joint (4), and both the upper joint (1) and the lower joint (4) are provided with phi-25mm sucker rod external threads. The blowout prevention joint of the sucker rod for oil well operation is simple in structure, convenient to manufacture and convenient to operate when used in cooperation with existing tools. When well blowout is detected in operation, well shutdown can be completed in three minutes, and the blowout prevention joint of the sucker rod for oil well operation effectively avoids blowout accidents and relieves labor intensity of workers.
Description
Technical field
The utility model relates to oil well operation blowout prevention sucker rod accessory in the oil extraction in oil field engineering, especially a kind of oil well operation sucker rod blowout-prevention joint.
Background technology
Oilfield operation field actuating oil-pumping unit generally adopts the method that installs master valve on wellhead flange additional at present, in case oil pipe generation overflow or blowout, the blowout prevention closing well method of employing is: lose sucker rod in well, close master valve.There is following problem in this method: the one, have very large security risk to losing sucker rod in well, and cause the rod string engineering accidents such as well that fall, cause operating cost to increase; The 2nd, the closed-in time is long, controls the weak effect of blowout, and duty cycle is long, affects oil well crude oil production.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, designs a kind of oil well operation sucker rod blowout-prevention joint.
The utility model is realized by following technical proposals:
The utility model comprises: top connection, on the section of unloading, φ 73mm plain end oil well pipe external screw thread, lower contact.Its oil well operation sucker rod blowout-prevention joint is the ladder cylindrical structure, and on centre, the section of unloading and φ 73mm plain end oil well pipe external screw thread place diameter are greater than the diameter of top connection, lower contact, and top connection and lower contact are equipped with φ 25mm sucker rod external screw thread.
On in above-mentioned oil well operation sucker rod blowout-prevention joint, the section of unloading is cylinder or six prism structures.
The beneficial effects of the utility model are: simple in structure, be convenient to make, and support the use with existing instrument, easy to operate, during operation, discovery blowout closing well was completed in 3 minutes, effectively avoided gas blowout accident to occur, and alleviated operating worker labour intensity.
Description of drawings
Fig. 1-the utility model master TV structure schematic diagram.
Fig. 2-the utility model the field schematic diagram.
In figure, 1. top connection, 2. on the section of unloading, 3. φ 73mm plain end oil well pipe external screw thread, 4. lower contact, 5. pup joint of sucker rod, 6. oil well operation sucker rod blowout-prevention joint, 7. hoop, 8. clip, 9. threeway, 10. master valve, 11. open flow gates, 12. blooie pipes.
The specific embodiment
Below in conjunction with accompanying drawing, enforcement of the present utility model is further elaborated:
Oil well operation sucker rod blowout-prevention joint by top connection 1, on the section of unloading 2, φ 73mm plain end oil well pipe external screw thread 3, lower contact 4 form, its oil well operation sucker rod blowout-prevention joint is the ladder cylindrical structure, on centre, the section of unloading 2 and φ 73mm plain end oil well pipe external screw thread 3 place's diameters are greater than the diameter of top connection 1, lower contact 4, and top connection 1 is equipped with φ 25mm sucker rod external screw thread with lower contact 4.
Oil well operation is robbed the spray operating procedure
At first, pup joint of sucker rod 5 is connected with top connection 1, φ 73mm plain end oil well pipe external screw thread 3 is connected standby with hoop 7; Secondly, open open flow gate 11 open flows; The 3rd, lower contact 4 is connected with rod string in well; The 4th, clip 8 is connected hoop 7 with threeway 9, tighten the bolt of clip 8; The 5th, close the open flow gate, take the kill-job measure, can subdue blowout.
Claims (2)
1. oil well operation sucker rod blowout-prevention joint comprises: top connection (1), on the section of unloading (2), φ 73mm plain end oil well pipe external screw thread (3), lower contact (4); It is characterized in that: described oil well operation sucker rod blowout-prevention joint is the ladder cylindrical structure, the section of unloading on centre (2) and φ 73mm plain end oil well pipe external screw thread (3) are located the diameter of diameter greater than top connection (1), lower contact (4), and top connection (1) is equipped with φ 25mm sucker rod external screw thread with lower contact (4).
2. oil well operation sucker rod blowout-prevention joint according to claim 1 is characterized in that: the section of unloading on described (2) is cylinder or six prism structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203246485U CN203285352U (en) | 2013-06-07 | 2013-06-07 | Blowout prevention joint of sucker rod for oil well operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203246485U CN203285352U (en) | 2013-06-07 | 2013-06-07 | Blowout prevention joint of sucker rod for oil well operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285352U true CN203285352U (en) | 2013-11-13 |
Family
ID=49541722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203246485U Expired - Fee Related CN203285352U (en) | 2013-06-07 | 2013-06-07 | Blowout prevention joint of sucker rod for oil well operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587284A (en) * | 2014-11-17 | 2016-05-18 | 中国石油天然气股份有限公司 | Wellhead blowout prevention device of rod-pumped well and blowout prevention method used during wellhead opening operation |
-
2013
- 2013-06-07 CN CN2013203246485U patent/CN203285352U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587284A (en) * | 2014-11-17 | 2016-05-18 | 中国石油天然气股份有限公司 | Wellhead blowout prevention device of rod-pumped well and blowout prevention method used during wellhead opening operation |
| CN105587284B (en) * | 2014-11-17 | 2019-07-05 | 中国石油天然气股份有限公司 | Blowout prevention method when oil pumping well head blowout hookup and unlatching shaft mouth operation |
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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: 20131113 Termination date: 20140607 |