CN202249916U - Underground spray-prevention tool for pumping unit well pump - Google Patents
Underground spray-prevention tool for pumping unit well pump Download PDFInfo
- Publication number
- CN202249916U CN202249916U CN2011203996656U CN201120399665U CN202249916U CN 202249916 U CN202249916 U CN 202249916U CN 2011203996656 U CN2011203996656 U CN 2011203996656U CN 201120399665 U CN201120399665 U CN 201120399665U CN 202249916 U CN202249916 U CN 202249916U
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- China
- Prior art keywords
- spray
- well pump
- rod
- hole
- turnover door
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Abstract
The utility model relates to an underground spray-prevention tool for a pumping unit well pump, and aims at solving the problem that the existing spray-prevention device is poor in spray-prevention effect. The underground spray-prevention tool for the pumping unit well pump is characterized in that an axial hole of an upper joint (1) is internally provided with a sliding sleeve (3) which is internally provided with an impact rod (4); the upper end of the impact rod (4) is connected with a pumping rod (5); the connecting part between the pumping rod (5) and the impact rod (4) is provided with a snap ring (6) capable of reducing; the outer ring surface of the snap ring (6) is in a circular arc shape; the lower end of the axial hole of the upper joint (1) is covered with a turnover door seat (7) which is articulated with a turnover door (10); the turnover door (10) is provided with an offsetting spring; a lower joint (2) is connected under the upper joint (1) by screw thread; and the lower joint (2) is provided with a step hole (8) along the axial direction and a well cleaning hole (9) on the side wall. The underground spray-prevention tool for the pumping unit well pump has the characteristic of good spray-prevention effect.
Description
Technical field:
The utility model relates in the oil recovery field, oil field blowout prevention instrument under the used blowout hookup of underground work, especially the oil pumper well pump.
Background technology:
Operation in oil recovery field, oil field, when managing the bar construction in order to prevent to remove, well liquid ejection or excessive in the tubing string to well head, the contaminated environment and the wasting of resources need be provided with blowout hookup in the down-hole.And existing blowout hookup is unfavorable for the development in oil field because there is the problem of blowout prevention weak effect in reasons in structure.
The utility model content:
In order to solve the problem of existing blowout hookup blowout prevention weak effect, the utility model provides blowout prevention instrument under a kind of oil pumper well pump, and the blowout prevention instrument has the blowout prevention good effectiveness under this oil pumper well pump.
The technical scheme of the utility model is: the blowout prevention instrument comprises top connection under this oil pumper well pump.The axial hole of top connection is built-in with slip cap, and slip cap is built-in with trip rod, and the trip rod upper end is connected with sucker rod; Sucker rod and trip rod junction be provided with can reducing snap ring; The snap ring outer ring surface is a circular arc, and the axial hole lower end of top connection is covered with the upset gate seat, and upset gate seat upper hinge has turnover door; Turnover door is provided with back-moving spring, under the top connection through the lower contact that has been threaded; Lower contact axially has step hole, and well washing hole is arranged on the sidewall.
The utlity model has following beneficial effect: blowout prevention instrument under this oil pumper well pump is owing to adopt the axial hole of top connection to be built-in with slip cap, and slip cap is built-in with trip rod, and the trip rod upper end is connected with sucker rod; Sucker rod and trip rod junction be provided with can reducing snap ring; The snap ring outer ring surface is a circular arc, and the axial hole lower end of top connection is covered with the upset gate seat, and upset gate seat upper hinge has turnover door; Turnover door is provided with back-moving spring, under the top connection through the lower contact that has been threaded; Lower contact axially has step hole, and the well washing hole structure is arranged on the sidewall.When ordinary production, utilize slip cap directly to dock with the step hole of lower contact, positive well washing hole is closed by slip cap, and oil discharge passage is opened, and can guarantee the requirement of normally recovering the oil.And when operation; Utilize turnover door under the effect of spring and well liquid, to reset, with the bore closure of top connection, oil discharge passage is reversed door with positive well washing hole keeps apart; Thereby can prevent effectively that well liquid from spraying or overflowing in tubing string; So not only economize on resources, and protected environment, guaranteed workman's normal running again.The blowout prevention instrument has the blowout prevention good effectiveness under this oil pumper well pump thus.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation.
1-top connection among the figure, 2-lower contact, 3-slip cap, 4-trip rod, 5-sucker rod, 6-snap ring, the 7-gate seat that overturns, 8-step hole, the positive well washing hole of 9-, 10-turnover door.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
By shown in Figure 1, the blowout prevention instrument comprises top connection 1 under this oil pumper well pump.The axial hole of top connection 1 is built-in with slip cap 3, and slip cap 3 is built-in with trip rod 4, and trip rod 4 upper ends are connected with sucker rod 5; Sucker rod 5 and trip rod 4 junctions be provided with can reducing snap ring 6; Snap ring 6 outer ring surfaces are circular arc, and the axial hole lower end of top connection 1 is covered with upset gate seat 7, and upset gate seat 7 upper hinges have turnover door 10; Turnover door 10 is provided with back-moving spring, and top connection 1 time is through the lower contact 2 that has been threaded; Lower contact 2 axially has step hole 8, and well washing hole 9 is arranged on the sidewall.
Operating principle;
When operation, it is descending to drive trip rods 4 through sucker rod 5, in the descending process of trip rod 4; It is descending that snap ring 6 promotes slip cap 3, and turnover door 10 is rushed open by slip cap 3, and turnover door 10 overturns to a side; Slip cap 3 drops in the step hole 8, and snap ring 6 reduced are through slip cap 3, in below the oil pipe of going; Oil discharge passage is opened, 9 sealings of positive well washing hole, can normally recover the oil.When operation, it is up to drive trip rods 4 by sucker rod 5, in the up process of trip rod 4; It is up that snap ring 6 promotes slip caps 3, and in top connection 1 axial hole, snap ring 6 reduced are through slip cap 3 until 3 of slip caps; Go in tubing string, turnover door 10 is closed under the effect of spring, and oil discharge passage is closed, positive well washing hole 9 is opened; Can normally trip out tubing string, dissolved gas in the tubing string and liquid can be got rid of through positive well washing hole 9 through positive well-flushing.Thereby can prevent effectively that well liquid from spraying or overflowing in tubing string.
Claims (1)
1. blowout prevention instrument under the oil pumper well pump comprises top connection (1), and it is characterized in that: the axial hole of top connection (1) is built-in with slip cap (3); Slip cap (3) is built-in with trip rod (4); Trip rod (4) upper end is connected with sucker rod (5), sucker rod (5) and trip rod (4) junction be provided with can reducing snap ring (6), snap ring (6) outer ring surface is a circular arc; The axial hole lower end of top connection (1) is covered with upset gate seat (7); Upset gate seat (7) upper hinge has turnover door (10), and turnover door (10) is provided with back-moving spring, under the top connection (1) through the lower contact that has been threaded (2); Lower contact (2) axially has step hole (8), and well washing hole (9) is arranged on the sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203996656U CN202249916U (en) | 2011-10-16 | 2011-10-16 | Underground spray-prevention tool for pumping unit well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203996656U CN202249916U (en) | 2011-10-16 | 2011-10-16 | Underground spray-prevention tool for pumping unit well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249916U true CN202249916U (en) | 2012-05-30 |
Family
ID=46111175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203996656U Expired - Fee Related CN202249916U (en) | 2011-10-16 | 2011-10-16 | Underground spray-prevention tool for pumping unit well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249916U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437735A (en) * | 2013-07-25 | 2013-12-11 | 中国石油天然气集团公司 | Underground variable-diameter limiting body blocking and isolating device in casing |
| CN108999592A (en) * | 2018-07-26 | 2018-12-14 | 中国石油天然气股份有限公司 | It is a kind of to have TCH test channel Underwell anti-injection switch for pumping unit monitoring well |
| CN109025904A (en) * | 2018-07-26 | 2018-12-18 | 中国石油天然气股份有限公司 | A kind of inclined cover board valve for pumping unit monitoring well |
-
2011
- 2011-10-16 CN CN2011203996656U patent/CN202249916U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437735A (en) * | 2013-07-25 | 2013-12-11 | 中国石油天然气集团公司 | Underground variable-diameter limiting body blocking and isolating device in casing |
| CN103437735B (en) * | 2013-07-25 | 2016-02-10 | 中国石油天然气集团公司 | In pipe, down-hole reducing limit body blocks spacer assembly |
| CN108999592A (en) * | 2018-07-26 | 2018-12-14 | 中国石油天然气股份有限公司 | It is a kind of to have TCH test channel Underwell anti-injection switch for pumping unit monitoring well |
| CN109025904A (en) * | 2018-07-26 | 2018-12-18 | 中国石油天然气股份有限公司 | A kind of inclined cover board valve 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 |
| CN109025904B (en) * | 2018-07-26 | 2020-12-29 | 中国石油天然气股份有限公司 | Inclined cover plate valve 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20121016 |