CN203961906U - A kind of oil jacket valve of automatic pressure regulation balance - Google Patents
A kind of oil jacket valve of automatic pressure regulation balance Download PDFInfo
- Publication number
- CN203961906U CN203961906U CN201420322708.4U CN201420322708U CN203961906U CN 203961906 U CN203961906 U CN 203961906U CN 201420322708 U CN201420322708 U CN 201420322708U CN 203961906 U CN203961906 U CN 203961906U
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- valve body
- screw
- central tube
- baffle ring
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- Expired - Fee Related
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Safety Valves (AREA)
Abstract
The utility model relates to a kind of oil jacket valve of automatic pressure regulation balance, upper end at central tube is socketed with box cupling, box cupling connects adjusts cap, outer wall at central tube is provided with baffle ring, the lower end of baffle ring is processed with concave station, is processed with through hole above concave station, and baffle ring outside is arranged with leather cup, leather cup and valve body socket, valve body and the lower end in contact of adjusting cap; On the lower end sidewall of adjustment cap, be processed with groove, in groove, be processed with air vent; Upper end at valve body is processed with screw, in screw, be provided with and adjust pipe, at the bottom of the hole of screw, be processed as spherical groove structure, the lower surface of adjusting pipe is processed as segment shape structure, in spherical groove, be provided with steel ball, up and down in adjustment pipe bottom or valve body screw bottom by steel ball, regulate tubing and casing internal pressure balance, utilize to adjust and manage the activity space of adjusting up and down steel ball, and then control oil sets annular space pressure size, of the present utility model simple in structure, easy for installation, safe and reliable, be easy to processing.
Description
Technical field
The utility model belongs to petroleum industry machinery field, is specifically related to a kind of oil jacket valve that can keep pressure balanced automatic pressure regulation balance between oil well oil conduit and sleeve pipe.
Background technology
At present, in low permeability oil field oil exploitation technology, in oil well, oil pipe and sleeve pipe annular space generation oil well associated gas are all by head valve control, and when gate valve is opened, well is outer, well is interior connects.Ambient pressure reduces, and in well, oil field gas leaks, and affects oil well output.When valve closing, OIH sleeve pipe annular space pressure raises, and especially the large well of gassiness, not only affects oil well output, also can produce potential safety hazard.Well head adopts gate valve control to be difficult to the pressure of oil sets annular space in control well.
Summary of the invention
In order to solve the existing deficiency of prior art, the utility model provides a kind of oil jacket valve that can automatically regulate borehole pressure balance and the good automatic pressure regulation balance of safety.
The technical solution adopted in the utility model is: the upper end at central tube is socketed with box cupling, adjust cap in the outside screwed connection in the lower end of box cupling and central tube socket, on the outer wall of central tube, be arranged with baffle ring, the lower end of baffle ring is processed with the concave station with the clamping of central tube outer wall, above concave station along being radially processed with through hole, baffle ring outside is arranged with leather cup, the upper end of leather cup extends in the valve body of baffle ring top and valve body socket, the upper end sealing shroud of valve body be located on central tube and with the lower end in contact of adjusting cap;
On the lower end sidewall of described adjustment cap, be processed with groove, in groove, be radially processed with air vent;
On the sidewall of the upper end of valve body along being axially processed with screw, in screw, be provided with the adjustment pipe being communicated with air vent, at the bottom of the hole of screw, be processed as spherical groove structure, the lower surface of adjusting pipe is processed as the segment shape structure corresponding with spherical groove, in spherical groove, be provided with steel ball movable up and down, the diameter of described steel ball is greater than the internal diameter of adjusting pipe.
Above-mentioned screw is uniformly distributed along the circumferencial direction of valve body.
The upper end of above-mentioned leather cup is pyramidal structure, and the lower end of valve body and the structure of leather cup adapt.
The oil jacket valve of the automatic pressure regulation balance that the utility model provides, it is to separate with valve body by leather cup, oil casing annular space is divided into upper and lower two parts, up and down in adjustment pipe bottom or valve body screw bottom by steel ball, thereby regulate tubing and casing internal pressure balance, in addition adjust cap by rotation, it is the elasticity between capable of regulating valve body and leather cup, leather cup and baffle ring, utilize to adjust and manage the activity space of adjusting up and down steel ball, and then control oil sets annular space pressure size, of the present utility model simple in structure, easy for installation, safe and reliable, be easy to processing.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment.
Detailed description of the invention
Now by reference to the accompanying drawings the technical solution of the utility model is further described, but the utility model is not limited only to following enforcement situation.
As shown in Figure 1, the oil jacket valve of the automatic pressure regulation balance of the present embodiment is to be connected and composed by box cupling 1, central tube 2, adjustment cap 3, valve body 4, adjusting lever 5, O type sealed outer ring 6, steel ball 7, O type sealing inner ring 8, leather cup 9 and baffle ring 10.
On the central tube 2 top outer walls of the present embodiment, be processed with external screw thread, be integrated with the internal thread screwed connection of box cupling 1 lower end, on the outer wall of the lower end of box cupling 1, be processed with external screw thread, with the internal thread screwed connection of adjusting cap 3 upper ends, to adjust cap 3 fixing, on the lower end sidewall of adjusting cap 3, be processed with groove, be processed with 4 air vents in groove, air vent is along adjusting on the circumference of radially processing and be evenly distributed in adjustment cap 3 of cap 3.On central tube 2 below adjustment cap 3, be set with valve body 4, on valve body 4 inwalls of the present embodiment, be processed with seal groove, by being arranged on the O type sealing inner ring 8 and central tube 2 sealing sockets in seal groove, the upper end of valve body 4 and the lower end in contact of adjusting cap 3, valve body 4 lower port are processed as expansion cylinder structure, on valve body 4 walls along being axially processed with 4 screws, 4 screws are to be also evenly distributed along valve body 4 circumference, and be communicated with the air vent of adjusting on cap 3, at the bottom of the hole of each screw, be processed as spherical groove structure, a steel ball 7 of each placement in groove, the diameter of steel ball 7 is less than the internal diameter of spherical groove, ensure that steel ball 7 can be freely movable in spherical groove, on the inwall of each screw, be processed with the internal thread adapting with the external screw thread of adjusting pipe outer wall, adjustment pipe screw thread is arranged in each screw, the lower end of the adjustment pipe of the present embodiment is relative with steel ball 7, in order to adapt with steel ball 7 structures, the lower end of each adjustment pipe is processed as to the segment shape structure corresponding with spherical groove, the internal diameter of adjusting pipe is less than the internal diameter of steel ball 7, ensure that steel ball 7 can be movable not inner to adjusting pipe.In order to ensure sealing, adjust on the outer wall of pipe middle part and be processed with sealed groove, be connected with valve body 4 inner wall sealings by the O type sealed outer ring 6 being arranged in sealed groove.
Lower end at central tube 2 is also set with leather cup 9, the leather cup 9 of the present embodiment is conical pipe structure, its upper end extends in valve body 4, is close to valve body 4 inwalls, is processed with concave station at the middle part of leather cup 9, baffle ring 10 is installed on concave station, for anti-baffle ring 10 glides, the lower end inwall that is processed with projection, baffle ring 10 on central tube 2 walls is processed with the concave station adapting with projection, and baffle ring 10 is connected on central tube 2 walls, further fix leather cup 9, prevented that leather cup 9 from gliding.On the baffle ring 10 of the present embodiment, along being radially processed with 4 through holes, can realize associated gas overflow in well.
The operating principle of above-mentioned oil jacket valve is: by leather cup 9, the annular space of tubing and casing is divided into upper and lower two parts, in the time that base pressure is greater than steel ball 7 weight, on steel ball 7, move, through hole, the leather cup 9 of baffle ring 10 are communicated with the air vent of central tube 2 gaps, adjustment pipe, adjustment cap 3, formed downforce passage, the pressure of OIH sleeve pipe discharges by lower channel; In the time that base pressure is less than steel ball 7 weight, steel ball 7 falls under gravity in spherical groove, contacts with spherical groove bottom surface, and downforce passage disconnects; Too low when external pressure, inside and outside pressure reduction too big steel ball 7 contacts with the lower surface of adjusting pipe, and steel ball 7 will be adjusted duct occlusion, adjusts pipe and disconnects with the upper pressure channel that the air vent of adjustment cap 3 is communicated with formation, and tubing and casing internal pressure keeps certain numerical value.
The utility model can be adjusted pressure size by steel ball 7 activity space sizes.
Claims (3)
1. the oil jacket valve of an automatic pressure regulation balance, be socketed with box cupling (1) in the upper end of central tube (2), it is characterized in that: adjust cap (3) in box cupling (1) and the outside screwed connection in lower end of central tube (2) socket, on the outer wall of central tube (2), be arranged with baffle ring (10), the lower end of baffle ring (10) is processed with the concave station with central tube (2) outer wall clamping, above concave station along being radially processed with through hole, baffle ring (10) outside is arranged with leather cup (9), the upper end of leather cup (9) extends in the valve body (4) above baffle ring (10) and is socketed with valve body (4), the upper end sealing shroud of valve body (4) be located at central tube (2) upper and with the lower end in contact of adjusting cap (3),
On the lower end sidewall of described adjustment cap (3), be processed with groove, in groove, be radially processed with air vent;
On the upper end sidewall of valve body (4) along being axially processed with screw, in screw, be provided with the adjustment pipe being communicated with air vent, at the bottom of the hole of screw, be processed as spherical groove structure, the lower surface of adjusting pipe is processed as the segment shape structure corresponding with spherical groove, in spherical groove, be provided with steel ball movable up and down (7), the diameter of described steel ball (7) is greater than the internal diameter of adjusting pipe.
2. the oil jacket valve of automatic pressure regulation balance according to claim 1, is characterized in that: described screw is uniformly distributed along the circumferencial direction of valve body (4).
3. the oil jacket valve of automatic pressure regulation balance according to claim 1, is characterized in that: the upper end of described leather cup (9) is pyramidal structure, and the structure of the lower end of valve body (4) and leather cup (9) adapts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420322708.4U CN203961906U (en) | 2014-06-17 | 2014-06-17 | A kind of oil jacket valve of automatic pressure regulation balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420322708.4U CN203961906U (en) | 2014-06-17 | 2014-06-17 | A kind of oil jacket valve of automatic pressure regulation balance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203961906U true CN203961906U (en) | 2014-11-26 |
Family
ID=51922505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420322708.4U Expired - Fee Related CN203961906U (en) | 2014-06-17 | 2014-06-17 | A kind of oil jacket valve of automatic pressure regulation balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203961906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843272A (en) * | 2018-06-19 | 2018-11-20 | 中国海洋石油集团有限公司 | Discharge the renewable type pressure relief tool and completion interval of well body structure of annular space trapped pressure |
-
2014
- 2014-06-17 CN CN201420322708.4U patent/CN203961906U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843272A (en) * | 2018-06-19 | 2018-11-20 | 中国海洋石油集团有限公司 | Discharge the renewable type pressure relief tool and completion interval of well body structure of annular space trapped pressure |
| CN108843272B (en) * | 2018-06-19 | 2020-06-30 | 中国海洋石油集团有限公司 | Recoverable pressure relief tool for releasing annular confining pressure and well completion well structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20170617 |