CN210509115U - Constant pressure valve with self-locking function - Google Patents
Constant pressure valve with self-locking function Download PDFInfo
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- CN210509115U CN210509115U CN201920764532.0U CN201920764532U CN210509115U CN 210509115 U CN210509115 U CN 210509115U CN 201920764532 U CN201920764532 U CN 201920764532U CN 210509115 U CN210509115 U CN 210509115U
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- pressure valve
- constant pressure
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- tubular column
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Abstract
The utility model discloses a constant pressure valve with self-locking function for intelligent separate-layer mining process, which solves the problems that a tool string can not suppress pressure and the constant pressure valve can not self-lock in the releasing process of the tubular column of the existing intelligent separate-layer mining process, and comprises a pressure valve 1, an upper joint, a lower joint, a C-shaped ring, a piston, a shear pin and a ball seat; in the releasing tubular column running-in process, the stratum produced liquid can enter the tubular column through the constant pressure valve, after the releasing tubular column runs in place, the central tube is pressed, the constant pressure valve is closed and self-locked, the central tube is pressed continuously, the releasing tubular column releases, the releasing tubular column is started, the butt joint tubular column is run in, the pump is started to realize intelligent layered mining, and the stratum produced liquid can only enter the tubular column string through the bottom-up tool.
Description
Technical Field
The utility model relates to a supporting instrument of oil field oil recovery especially relates to a constant pressure valve of taking self-locking function of intelligence layering exploitation technology.
Background
At present, the intelligent layered mining process is vigorously popularized in offshore oil field combined mining wells, and the related matched tools have the following problems: the unable backlog of release tubular column release in-process tool cluster can't realize that the release instrument suppresses the release, and intelligence layering exploitation process requires the constant pressure valve to suppress the constant pressure valve for the center tube and close and take self-locking function, prevents that the constant pressure valve from opening by accident.
Disclosure of Invention
The utility model aims at solving the unable suppressing pressure of present intelligent separate layer mining technology releasing tubular column releasing in-process tool cluster, the unable problem of realizing that releasing tool suppressed releasing.
In order to solve the technical problem that prior art exists, the utility model discloses a following technical scheme implements:
a constant pressure valve with a self-locking function is composed of a valve body, wherein the valve body comprises an upper joint, a lower joint 2, a ball body and a ball seat, and the upper joint is respectively in threaded connection with the lower joint and the ball seat; a piston is arranged between the lower joint and the ball seat; the piston is fixedly connected with the lower joint through the shear pin, and a displacement locking mechanism is arranged between the lower joint and the piston.
The ball seat is provided with a liquid passing hole and a pressure transmission hole, and the inner side of the ball seat is a conical surface.
And the upper joint and the lower joint are respectively provided with a sealing ring.
The utility model discloses the advantage of device and method is:
1. in the running process, the shaft liquid directly enters the central pipe through the perforated circular plug and the constant pressure valve, so that the pipe column is ensured to run smoothly under the condition that the production allocator is closed;
2. after the pipe column is put in place, the central pipe is directly pressed, and the constant pressure valve is closed by shearing the shear pin, so that the operation is simple and convenient, and the reliability is high;
3. after the constant pressure valve is closed, the constant pressure valve is self-locked to prevent the constant pressure valve from being opened accidentally.
Drawings
Fig. 1 is a schematic structural view of the utility model in an open state of a constant pressure valve with a self-locking function;
fig. 2 is a schematic structural view of the constant pressure valve with self-locking function according to the present invention in a closed state.
The specific implementation mode is as follows:
the invention will be further explained with reference to the drawings:
the utility model provides a take self-locking function's constant pressure valve, its intelligent separate layer mining release technology tubular column that relates to mainly include that foraminiferous circle blocks up, constant pressure valve, join in marriage production ware, cross the cable and insert sealed, cross the sealed, cable butt joint instrument of cable location, release instrument etc. and constitute. In the process of putting the pipe column in, the steel ball is put into the pipe column after the tool string is connected, and the production allocator keeps a closed state to be connected into the tool string and put in along with the pipe column; liquid in the shaft can enter the tubular column string through the lower joint, the ball seat annulus and the lateral liquid inlet hole of the ball seat through the right end of the constant pressure valve, so that the opening of the production allocator is not needed in the running process of the tubular column.
As shown in fig. 1, the valve body comprises an upper joint 101, a lower joint 102, a ball 103 and a ball seat 201, wherein the ball seat 201 is provided with a liquid passing hole 202 and a pressure transmitting hole 203, and the inner side of the ball seat is a conical surface. And sealing rings (106,107) are respectively arranged on the upper joint and the lower joint.
The upper joint 101 is respectively in threaded connection with the lower joint 102 and the ball seat 201; a piston 104 is arranged between the lower joint 102 and the ball seat 201; the piston 104 is fixedly connected with the lower joint 102 through a shear pin 105, and a displacement locking mechanism 301 is arranged between the lower joint 102 and the piston 104. When the piston is assembled, the upper joint 021 is in threaded connection with the ball seat 201, the upper joint 102 is in threaded connection with the lower joint 102, the left end face of the piston 104 faces the right end face of the upper joint 101, and the lower joint 102 and the piston 104 are fixed by the shear pin 105.
The displacement locking mechanism 301 comprises a C-shaped ring 302, a groove 303 and a limiting step 304; the C-shaped ring 302 is arranged on the piston 104, and the groove 303 and the limiting step 304 are arranged on the lower joint 102; after the shear pin 105 on the piston 104 is sheared, the piston 104 moves down to the limit step 304, and the C-shaped ring 302 is clamped in the groove 303, so that the valve body is locked.
And (3) as shown in figure 2, a butt joint pipe column is put in to realize the intelligent separate mining process. The utility model comprises the following steps:
(1) assembling: when the piston is assembled, the upper joint 021 is in threaded connection with the ball seat 201, the upper joint 102 is in threaded connection with the lower joint 102, the left end face of the piston 104 faces the right end face of the upper joint 101, and the lower joint 102 and the piston 104 are fixed by the shear pin 105.
(2) The pipe column is put into: and (3) connecting the constant pressure valve into the tool string, then throwing the steel ball, connecting the production allocator into the tool string in a closed state and putting the steel ball into the tool string along with the pipe column, wherein liquid in the shaft can enter the pipe column string through the constant pressure valve in the pipe column putting-in process.
(3) Closing the constant pressure valve: after the pipe column is put in place, the central pipe is pressed, the shear pin 105 is cut off, the piston 104 drives the C-shaped ring 302 to move rightwards together, the piston 104 moves to the lower joint limiting step 304, the C-shaped ring 302 is just clamped to the groove 303, and the constant pressure valve is closed and cannot be opened accidentally through self locking.
It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (4)
1. The utility model provides a take self-locking function's constant pressure valve comprises the valve body, its characterized in that: the valve body comprises an upper joint, a lower joint, a ball body and a ball seat, wherein the upper joint is in threaded connection with the lower joint and the ball seat respectively; a piston is arranged between the lower joint and the ball seat; the piston is fixedly connected with the lower joint through the shear pin, and a displacement locking mechanism is arranged between the lower joint and the piston.
2. The constant pressure valve with the self-locking function according to claim 1, characterized in that: the ball seat is provided with a liquid passing hole and a pressure transmission hole, and the inner side of the ball seat is a conical surface.
3. The constant pressure valve with the self-locking function according to claim 1, characterized in that: the displacement locking mechanism comprises a C-shaped ring, a groove and a limiting step; the C-shaped ring is arranged on the piston, and the groove and the limiting step are arranged on the lower joint; after the shear pin on the piston is sheared, the piston moves down to the limiting step, and the C-shaped ring is clamped in the groove to realize locking of the constant pressure valve.
4. The constant pressure valve with the self-locking function according to claim 1, characterized in that: and the upper joint and the lower joint are respectively provided with a sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920764532.0U CN210509115U (en) | 2019-05-25 | 2019-05-25 | Constant pressure valve with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920764532.0U CN210509115U (en) | 2019-05-25 | 2019-05-25 | Constant pressure valve with self-locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210509115U true CN210509115U (en) | 2020-05-12 |
Family
ID=70576579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920764532.0U Active CN210509115U (en) | 2019-05-25 | 2019-05-25 | Constant pressure valve with self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210509115U (en) |
-
2019
- 2019-05-25 CN CN201920764532.0U patent/CN210509115U/en active Active
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