CN204782923U - Oil recovery well well head check valve - Google Patents
Oil recovery well well head check valve Download PDFInfo
- Publication number
- CN204782923U CN204782923U CN201520359644.XU CN201520359644U CN204782923U CN 204782923 U CN204782923 U CN 204782923U CN 201520359644 U CN201520359644 U CN 201520359644U CN 204782923 U CN204782923 U CN 204782923U
- Authority
- CN
- China
- Prior art keywords
- ball seat
- ball
- well
- main valve
- valve body
- 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
Links
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to an oil recovery well well head check valve. Its technical scheme is: the nipple joint is connected respectively to the both sides of the main valve body, is equipped with the bottom plate in the bottom of the main valve body, and the left side of bottom plate is passed through the backup pad and is connected the ball seat cover, and installation ball seat in the ball seat cover is equipped with the plug on the upper portion that the main valve was personally experienced sth. Part of the body, the lower surface of plug be equipped with half ball grooves half ball grooves and ball seat between place the steel ball, the breach on fluid passage right side gets into the ball seat, when pressure is greater than the gravity of steel ball, opens the steel ball, forms the liquid route. The beneficial effects are that: firstly, the well head check valve that should recover the oil design is small and exquisite, simple structure, and the direct mount does not change the flowage structure in well head flow straight tube section, secondly, the installation is simple, and the beading is in the well head flow, thirdly, it is big to import and export the runner opening, can satisfy big discharge capacity oil well liquid measure and discharge, fourthly, interior ball seat of valve and spheroid can directly take out and wash and change, and extension well head check valve life improves the backward flow of well liquid by the effect.
Description
Technical field
The utility model relates to a kind of petroleum industry quarrying apparatus, particularly a kind of one-way valve on wellhead of oil prodn. well.
Background technology
Along with going deep into of oil field development work, oil well drives a well to count to be increased year by year, oil extraction cost increase.Crude oil rises to surface process from underground, drives pipe bar pump in pit shaft to move up and down, be pumped on ground by crude oil, and be transported to oil gathering station by surface line by ground installation.When down-hole pipe pump occurs that exception or oil well stop production, crude oil cannot be pumped on ground, and due to wellbore pressure low, in surface line, crude oil also can pour in down a chimney back in stratum, oil mining decline in benefits.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of one-way valve on wellhead of oil prodn. well, and its use cost is low, Safety and Environmental Protection is high, convenient operation, and can prevent well liquid from pouring in down a chimney.
Its technical scheme is: comprise plug, steel ball, main valve body, pressure ring, ball seat cover, ball seat, pipe nipple, base plate and gripper shoe, the both sides connecting short section respectively of described main valve body, base plate is provided with in the bottom of main valve body, the gripper shoe that passes on left of base plate connects ball seat cover, in ball seat cover, ball seat is installed, plug is provided with on the top of main valve body, the soffit of described plug is provided with hemispherical groove, steel ball is placed between described hemispherical groove and ball seat, liquid enters ball seat by the breach on right side, when pressure is greater than the gravity of steel ball, open steel ball, form fluid path.
Above-mentioned plug and main valve body inner chamber are provided with the first sealing ring.
The second sealing ring is provided with between above-mentioned ball seat and ball seat overlap.
The beneficial effects of the utility model are: one is that this production wellhead one-way valve designs is small and exquisite, and structure is simple, is directly installed on Well head flow path straight length, does not change flowage structure; Two is install simply, is directly welded on Well head flow path; Three is import and export flow passage openings greatly, can meet huge discharge oil well liquid measure and discharge; Four is that in valve, ball seat and spheroid directly can take out and carry out cleaning and changing, and extends one-way valve on wellhead application life, improves well liquid backflow cut-off effect.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
In upper figure: plug 1, steel ball 2, main valve body 3, first sealing ring 4, pressure ring 5, ball seat cover 6, ball seat 7, second sealing ring 8, pipe nipple 9, base plate 10, gripper shoe 11.
Detailed description of the invention
By reference to the accompanying drawings 1, the utility model will be further described:
The utility model comprises plug 1, steel ball 2, main valve body 3, pressure ring 5, ball seat cover 6, ball seat 7, pipe nipple 9, base plate 10 and gripper shoe 11, the both sides connecting short section 9 respectively of described main valve body 3, base plate 10 is provided with in the bottom of main valve body 3, the gripper shoe 11 that passes on left of base plate 10 connects ball seat cover 6, in ball seat cover 6, ball seat 7 is installed, plug 1 is provided with on the top of main valve body 3, the soffit of described plug 1 is provided with hemispherical groove, steel ball 2 is placed between described hemispherical groove and ball seat 7, liquid enters ball seat 7 by the breach on right side, when pressure is greater than the gravity of steel ball, open steel ball, form fluid path.
Wherein, plug 1 and main valve body 3 inner chamber are provided with the first sealing ring 4, and above-mentioned ball seat 7 and ball seat are provided with the second sealing ring 8 between overlapping 6.
During use, when the pressure of the liquid on the right side of main valve body is larger, and pressure is when being greater than the gravity of steel ball, steel ball is backed down, and steel ball is withstood on the hemispherical groove of plug bottom, liquid enters ball seat upper space from the cavity of pipe nipple between base plate and ball seat on right side, then, enter the pipe nipple on the left of main valve body by the cavity between steel ball and ball seat, thus form unobstructed liquid passage excessively; When the pressure of liquid is less than the gravity of steel ball, steel ball is sitting on ball seat, thus makes valve closing, and certainly, liquid also cannot flow to right side from left side.
In addition, the utility model has the advantages that:
One is that this production wellhead one-way valve designs is small and exquisite, and structure is simple, is directly installed on Well head flow path straight length, does not change flowage structure; Two is install simply, is directly welded on Well head flow path; Three is import and export flow passage openings greatly, can meet huge discharge oil well liquid measure and discharge; Four is that in valve, ball seat and spheroid directly can take out and carry out cleaning and changing, and extends one-way valve on wellhead application life, improves well liquid backflow cut-off effect.
The above is only preferred embodiment of the present utility model, and any those of ordinary skill in the art all may utilize the technical scheme of above-mentioned elaboration to the utility model correct or are revised as equivalent technical scheme.Therefore, any simple modification of carrying out according to the technical solution of the utility model or substitute equivalents, belong to the greatest extent the scope that the utility model is claimed.
Claims (3)
1. an one-way valve on wellhead of oil prodn. well, it is characterized in that: comprise plug (1), steel ball (2), main valve body (3), pressure ring (5), ball seat cover (6), ball seat (7), pipe nipple (9), base plate (10) and gripper shoe (11), the both sides connecting short section (9) respectively of described main valve body (3), base plate (10) is provided with in the bottom of main valve body (3), the gripper shoe (11) that passes on left of base plate (10) connects ball seat cover (6), in ball seat cover (6), ball seat (7) is installed, plug (1) is provided with on the top of main valve body (3), the soffit of described plug (1) is provided with hemispherical groove, steel ball (2) is placed between described hemispherical groove and ball seat (7), liquid enters ball seat (7) by the breach on right side, when pressure is greater than the gravity of steel ball, open steel ball, form fluid path.
2. one-way valve on wellhead of oil prodn. well according to claim 1, is characterized in that: described plug (1) and main valve body (3) inner chamber are provided with the first sealing ring (4).
3. one-way valve on wellhead of oil prodn. well according to claim 1, is characterized in that: be provided with the second sealing ring (8) between described ball seat (7) and ball seat cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520359644.XU CN204782923U (en) | 2015-05-29 | 2015-05-29 | Oil recovery well well head check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520359644.XU CN204782923U (en) | 2015-05-29 | 2015-05-29 | Oil recovery well well head check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204782923U true CN204782923U (en) | 2015-11-18 |
Family
ID=54522991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520359644.XU Expired - Fee Related CN204782923U (en) | 2015-05-29 | 2015-05-29 | Oil recovery well well head check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204782923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949379A (en) * | 2023-03-08 | 2023-04-11 | 黑龙江铸力石油机械制造有限责任公司 | Oil increasing device and oil production device with same |
-
2015
- 2015-05-29 CN CN201520359644.XU patent/CN204782923U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949379A (en) * | 2023-03-08 | 2023-04-11 | 黑龙江铸力石油机械制造有限责任公司 | Oil increasing device and oil production device with same |
| CN115949379B (en) * | 2023-03-08 | 2023-09-05 | 黑龙江铸力石油机械制造有限责任公司 | Oil increasing device and oil extraction device with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204703876U (en) | A kind of bridge-type concentric separated-injection tubing string | |
| CN105178908A (en) | Chemical grouting packing device and method for downhole stratum plugging | |
| CN103541700B (en) | Reverse sealed eccentric injection mandrel | |
| CN204252929U (en) | Oil recovery water plugging string | |
| CN204782923U (en) | Oil recovery well well head check valve | |
| CN108071376B (en) | Injection and production string in coal-bed gas well | |
| CN104948147A (en) | Flow distributing device, heavy oil viscosity decreasing exploitation system and extraction method thereof | |
| CN204371263U (en) | The two-layer zone separate injection technical string device of a kind of non metal continuous oil pipe | |
| CN104389563A (en) | Bilayer separate injection process pipe column device for nonmetal continuous oil pipe | |
| CN105587286B (en) | Lost circulation prevention flushing packer | |
| CN204941345U (en) | A kind of radial well transfer with packing function | |
| CN101748991A (en) | Hanging type oil layer protection packer | |
| CN103470221A (en) | Underbalance tubing, no-killing gas lifting, shaft pumping and pump detecting combined method | |
| CN201416429Y (en) | Sand blasting choke with sliding sleeve | |
| CN201857941U (en) | Anti-leakage and bottom water coning delay integrated string of horizontal well | |
| CN202215193U (en) | Water-swelling self-sealing type packer | |
| CN113914824B (en) | Underground follow-up sealing production increasing pipe column capable of flushing well and efficient lifting method | |
| CN203394451U (en) | Leak-sealing water-blocking oil extraction tubular column for heavy oil horizontal well | |
| CN203394717U (en) | Tandem long plunger rod type oil-well pump of travelling valve | |
| CN203347704U (en) | Well washing and oil draining device for pumping well | |
| CN101614202B (en) | Double-deck defueling pump | |
| CN202596697U (en) | Fracturing wellhead ball catching device | |
| CN203335020U (en) | Pressure bearing type grouting hole packer with pulp returning prevention device | |
| CN208982015U (en) | A kind of well-flushing oil drain switch | |
| CN114278250A (en) | Offshore low-pressure gas well fixed-point dragging continuous liquid drainage pipe column and liquid drainage method thereof |
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: 20151118 Termination date: 20160529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |