CN202926235U - Destabilization-prevention oil pipe joint - Google Patents
Destabilization-prevention oil pipe joint Download PDFInfo
- Publication number
- CN202926235U CN202926235U CN 201220650013 CN201220650013U CN202926235U CN 202926235 U CN202926235 U CN 202926235U CN 201220650013 CN201220650013 CN 201220650013 CN 201220650013 U CN201220650013 U CN 201220650013U CN 202926235 U CN202926235 U CN 202926235U
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- joint
- oil
- destabilization
- well
- 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 - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model provides a destabilization-prevention oil pipe joint. The destabilization-prevention oil pipe joint comprises a joint, wherein an oil pipe internal thread is arranged at the upper part of the joint; an oil pipe external thread is arranged at the lower part of the joint; a through hole at the lower part of the joint is communicated with the upper internal thread; a destabilization-prevention empty slot is formed below the upper internal thread of the joint; and the upward acting force of the pressure of well liquid on an oil pipe column does not intensively act at the bottom of the oil pipe, but dispersively acts on the oil pipe column, so that the stability of the lower oil pipe is improved, the problems of eccentric wear and damage of a sucker rod and the oil pipe caused by the buckling of the oil pipe due to instability can be prevented, the service life of the sucker rod and the oil pipe can be prolonged, the production period of an oil well can be improved, the pump efficiency and mechanical efficiency of an oil well pump can be improved, and the yield of the oil well can be increased.
Description
Technical field
The utility model is the oil production equipment that petroleum industry is used, and is a kind of anti-unstability oil connection.
Background technology
The on-the-spot oil pipe that uses is comprised of body and box cupling at present, when the tubing string that is connected into by this multiple-tubing string is lowered in oil well, the pressure of well liquid is to the active force Main Function of the tubing string bottom at tubing string, thisly act on the active force that tubing string bottom makes progress, will make bottom tubing string unstability crooked; In sucker-rod pumping system, when sucker rod drive oil well pump pumps oil pumping, fluid column load alternating action is on sucker rod, oil pipe, sucker rod, oil pipe are subject to the effect of fluctuating load, and the effect of fluctuating load makes bottom sucker rod, oil pipe extension vibration pressurized unstability crooked (this is that operating principle by oil well pump determines).Make the very large contact of generation between sucker rod and oil pipe after the crooked stack of two kinds of unstabilitys of this of oil pipe, serious sucker rod and oil pipe eccentric wear problem appear, after producing eccentric wear, oil pipe and sucker rod can not be used, cause oil well operation, oil well repair free period is short, increases operating cost, increases rod tube consumption, the oil well off-time is many, reduces crude output; After the bending of oil pipe unstability, also can cause the eccentric wear problem between oil pipe external surface and sleeve pipe.The pressure that does not also solve at the scene at present well liquid causes the technical measures of tubing string bottom unstability bending to the active force of tubing string.
Summary of the invention
The purpose of this utility model is a kind of anti-unstability oil connection of design, avoids oil pipe unstability in sleeve pipe crooked, prevents sucker rod and oil pipe eccentric wear.
The purpose of this utility model is achieved in that and comprises joint, and the oil pipe internal thread is arranged at joint top, and oil tube external thread is arranged at the joint bottom, and the joint lower through-hole communicates with upper internal threaded, and anti-unstability dead slot is set under the joint upper internal threaded.
The beneficial effects of the utility model are: the pressure of well liquid does not concentrate to the active force that tubing string makes progress the bottom that acts on oil pipe, but peptizaiton is on tubing string, the stability of bottom oil pipe improves, thereby can eliminate the crooked sucker rod that produces of oil pipe unstability and the problem of oil pipe eccentric wear, can extend the application life of sucker rod and oil pipe, improve the oil well production cycle, improve pump efficiency and the mechanical efficiency of oil well pump, increase oil well output.
Description of drawings
Fig. 1 is the half sectional view of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
Embodiment of the present utility model comprises joint 1, and oil pipe internal thread 2 is arranged at joint 1 top, and oil tube external thread 4 is arranged at joint 1 bottom, and joint 1 lower through-hole communicates with upper internal threaded, and anti-unstability dead slot 3 is set under joint 1 upper internal threaded.
After anti-unstability dead slot 3 has been arranged, the downward power that the pressure of well liquid produces on anti-unstability dead slot 3 lower surfaces offsets with the power that makes progress that joint 1 bottom is subject to, and the active force peptizaiton that the pressure that makes well liquid makes progress to tubing string thereby the pressure of well liquid downward power on a upper joint of installing on the power that makes progress of preventing producing on unstability dead slot 3 upper surfaces and tubing string offsets is on tubing string.
Claims (1)
1. anti-unstability oil connection, comprise joint (1), oil pipe internal thread (2) is arranged at joint (1) top, oil tube external thread (4) is arranged at joint (1) bottom, joint (1) lower through-hole communicates with upper internal threaded, it is characterized in that: anti-unstability dead slot (3) is set under joint (1) upper internal threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650013 CN202926235U (en) | 2012-12-02 | 2012-12-02 | Destabilization-prevention oil pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650013 CN202926235U (en) | 2012-12-02 | 2012-12-02 | Destabilization-prevention oil pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202926235U true CN202926235U (en) | 2013-05-08 |
Family
ID=48216208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220650013 Expired - Lifetime CN202926235U (en) | 2012-12-02 | 2012-12-02 | Destabilization-prevention oil pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202926235U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926673A (en) * | 2012-12-02 | 2013-02-13 | 中国石油化工股份有限公司 | Destabilization-prevention oil pipe joint |
-
2012
- 2012-12-02 CN CN 201220650013 patent/CN202926235U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926673A (en) * | 2012-12-02 | 2013-02-13 | 中国石油化工股份有限公司 | Destabilization-prevention oil pipe joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202926235U (en) | Destabilization-prevention oil pipe joint | |
| CN202768405U (en) | All-metal screw rod type oil-well pump for deep well | |
| CN201255107Y (en) | Assembly type piston rod structure convenient to replacing drilling pump piston | |
| CN212583677U (en) | Hydraulic load-reducing oil pumping device | |
| CN102926673A (en) | Destabilization-prevention oil pipe joint | |
| CN2849229Y (en) | Eccentrically arranged valve type oil pumping pump | |
| CN102425396B (en) | A kind of sucker-rod pump oil extraction system for oil well | |
| CN201671601U (en) | Liquid lifting pumping aid for pumping well | |
| CN2934555Y (en) | Oil pipe tension anchoring compensator | |
| CN202673666U (en) | Sucker rod load reducing device | |
| CN203098229U (en) | Oil-submersible pump anti-jacking and sealing anchoring device driven by linear motor | |
| CN2752422Y (en) | Anti-unstability sucker rod | |
| CN201705632U (en) | Rodless hydraulic deep oil well pump | |
| CN2797618Y (en) | Wellhead sealing device for single crank, double-stroke and flexible rope type oil sucking system | |
| CN201705231U (en) | Deep sucker rod load reducing device | |
| CN202001270U (en) | Under-pump aggravated reaction type oil pump | |
| CN202926231U (en) | Sucker rod coupling for dispersing buoyancy | |
| CN202926227U (en) | Destabilization-prevention oil pipe compensator | |
| CN2756814Y (en) | Anti-unstabilizing compensating device for sucker rod | |
| CN201059258Y (en) | Tubing pump | |
| CN201025260Y (en) | Deviated friction prevention and heavy oil sucker rod | |
| CN207145197U (en) | A kind of pumpingh well straight-down negative load reducer | |
| CN201269068Y (en) | Combined well head moving seal apparatus | |
| CN201059255Y (en) | Long plunger type viscous crude oil pump | |
| CN202431492U (en) | Anti-leaking oil pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |
|
| CX01 | Expiry of patent term |