CN215632871U - Oil and gas production wellhead device - Google Patents
Oil and gas production wellhead device Download PDFInfo
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- CN215632871U CN215632871U CN202022761909.2U CN202022761909U CN215632871U CN 215632871 U CN215632871 U CN 215632871U CN 202022761909 U CN202022761909 U CN 202022761909U CN 215632871 U CN215632871 U CN 215632871U
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- oil
- pneumatic stop
- stop valve
- reversing valve
- pilot reversing
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Abstract
The utility model discloses an oil and gas production wellhead device, which comprises an oil pipe head, a pneumatic stop valve and a pilot reversing valve, wherein the oil pipe head is connected with the pneumatic stop valve; one side of the pilot reversing valve is connected to one side of the oil pipe head, a control pipeline is arranged on the other side of the pilot reversing valve, and the pilot reversing valve is connected to the upper part of the pneumatic stop valve through the control pipeline; one end of the oil pipe head is connected with one end of the pneumatic stop valve, and the other end of the pneumatic stop valve is provided with a production pipeline. The utility model does not adopt external energy power and can meet the requirement of a low-yield well to realize the oil extraction or gas extraction function of the self-injection well, thereby saving the energy of oil gas extraction and improving the production efficiency.
Description
Technical Field
The utility model relates to the field of oil and gas production, in particular to an oil and gas production wellhead device.
Background
Some plots at the oil field oil extraction gas well mouth can not normally meet the oil extraction gas requirement of the flowing well due to the reasons of low productivity, insufficient underground pressure and the like, but the underground can generate certain higher pressure after the well is closed, and the production mode of the flowing well can not be normally adopted under the condition.
Disclosure of Invention
The utility model aims to solve the technical problem that external energy power is not adopted and the oil extraction or gas extraction function of the self-blowing well can be met, thereby saving the energy of oil gas extraction and improving the production efficiency.
The oil and gas production wellhead device is realized by the following technical scheme: comprises an oil pipe head, a pneumatic stop valve and a pilot reversing valve;
one side of the pilot reversing valve is connected to one side of the oil pipe head, the other side of the pilot reversing valve is provided with a control pipeline, and the pilot reversing valve is connected to the upper part of the pneumatic stop valve through the control pipeline; one end of the oil pipe head is connected with one end of the pneumatic stop valve, and the other end of the pneumatic stop valve is provided with a production pipeline.
As the preferred technical scheme, a screw thread flange is arranged on one side of the pilot reversing valve, and one side of the oil pipe head is connected with the screw thread flange through a flat gate; one end of the oil pipe head is connected with one end of the pneumatic stop valve through a flat gate; one end of the production pipeline is provided with a welding neck flange, and the other end of the pneumatic stop valve is connected with the welding neck flange through a flat gate.
According to the preferable technical scheme, a port a is arranged below one side of the pilot reversing valve, and a port b is arranged above one side of the pilot reversing valve; and a port b is arranged above the other side of the pilot reversing valve.
Preferably, the threaded flange is mounted on the port a of the pilot operated directional control valve, and the production line is mounted on the port c of the pilot operated directional control valve.
As the preferred technical scheme, the pneumatic stop valve is a diaphragm type pneumatic stop valve.
The utility model has the beneficial effects that: the utility model does not adopt external energy power and can meet the requirement of a low-yield well to realize the oil extraction or gas extraction function of the self-injection well, thereby saving the energy of oil gas extraction and improving the production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented and the spatially relative descriptors used herein interpreted accordingly.
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1-2, the wellhead device for oil and gas production of the present invention comprises a tubing head 1, a pneumatic stop valve 2, and a pilot directional valve 6;
one side of the pilot reversing valve 6 is connected to one side of the oil pipe head 1, the pilot reversing valve 6 is opened when the pressure is high, a control pipeline 5 is arranged on the other side of the pilot reversing valve 6, and the pilot reversing valve 6 is connected to the upper part of the pneumatic stop valve 2 through the control pipeline; one end of the oil pipe head 1 is connected with one end of the pneumatic stop valve 2, and the other end of the pneumatic stop valve 2 is provided with a production pipeline 4.
In the embodiment, a screw thread flange 7 is arranged on one side of a pilot reversing valve 6, and one side of an oil pipe head 1 is connected with the screw thread flange 7 through a flat gate 8; one end of the oil pipe head 1 is connected with one end of the pneumatic stop valve 2 through a flat gate 8; a welding neck flange 3 is arranged at one end of the production pipeline 4, and the other end of the pneumatic stop valve 2 is connected with the welding neck flange 3 through a flat gate 8.
In this embodiment, a port a is arranged below one side of the pilot reversing valve 6, and a port b is arranged above one side of the pilot reversing valve 6; a port b is arranged above the other side of the pilot reversing valve 6.
In this embodiment, the threaded flange 7 is installed at the port a of the pilot operated directional control valve 6, the production line 4 is installed at the port c of the pilot operated directional control valve 6, when the pressure is high, the ports a and c of the pilot operated directional control valve 6 are conducted, when the pressure is reduced, the ports b and c of the pilot operated directional control valve 6 are conducted, the pressure in the diaphragm type pneumatic stop valve 2 is discharged, and the pneumatic stop valve 2 is automatically closed under the action of the internal spring.
In this embodiment, the pneumatic stop valve 2 is a diaphragm type pneumatic stop valve.
The working principle is as follows:
when the underground pressure is lower, the pilot reversing valve is in a closed state, the diaphragm type pneumatic stop valve is in a closed state, the underground pressure cannot enter a production pipeline when the wellhead device is in the closed state, the production stops, the underground pressure is increased after energy storage after a certain time, when the pressure reaches a certain value, the pilot reversing valve is driven to be opened, namely ports a and c are communicated, the pressure enters a driver of the diaphragm type pneumatic stop valve through a control pipeline, the diaphragm type pneumatic stop valve is opened, the underground pressure enters the production pipeline, and normal oil recovery gas production is carried out; when the pressure in the production well is reduced to a certain pressure after a period of time, the pilot reversing valve is automatically closed, at the moment, ports b and c of the pilot reversing valve are communicated, the pressure in the diaphragm type pneumatic stop valve driver is discharged, the diaphragm type pneumatic stop valve is automatically closed under the action of an internal spring, and the production is stopped;
the energy storage production can be automatically carried out in the well according to the flow.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (5)
1. The utility model provides an oil recovery gas production wellhead assembly which characterized in that: comprises an oil pipe head (1), a pneumatic stop valve (2) and a pilot reversing valve (6);
one side of the pilot reversing valve (6) is connected to one side of the oil pipe head (1), a control pipeline (5) is arranged on the other side of the pilot reversing valve (6), and the pilot reversing valve (6) is connected to the upper part of the pneumatic stop valve (2) through the control pipeline; one end of the oil pipe head (1) is connected with one end of the pneumatic stop valve (2), and the other end of the pneumatic stop valve (2) is provided with a production pipeline (4).
2. The oil and gas production wellhead assembly of claim 1, wherein: a screw thread flange (7) is installed on one side of the pilot reversing valve (6), and one side of the oil pipe head (1) is connected with the screw thread flange (7) through a flat gate (8); one end of the oil pipe head (1) is connected with one end of the pneumatic stop valve (2) through a flat gate (8); one end of the production pipeline (4) is provided with a welding neck flange (3), and the other end of the pneumatic stop valve (2) is connected with the welding neck flange (3) through a flat gate (8).
3. The oil and gas production wellhead assembly of claim 1, wherein: a port a is arranged below one side of the pilot reversing valve (6), and a port b is arranged above one side of the pilot reversing valve (6); and a port b is arranged above the other side of the pilot reversing valve (6).
4. The oil and gas recovery wellhead assembly of claim 2, wherein: the thread flange (7) is arranged on a port a of the pilot reversing valve (6), and the production pipeline (4) is arranged on a port c of the pilot reversing valve (6).
5. The oil and gas production wellhead assembly of claim 1, wherein: the pneumatic stop valve (2) is a diaphragm type pneumatic stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022761909.2U CN215632871U (en) | 2020-11-25 | 2020-11-25 | Oil and gas production wellhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022761909.2U CN215632871U (en) | 2020-11-25 | 2020-11-25 | Oil and gas production wellhead device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215632871U true CN215632871U (en) | 2022-01-25 |
Family
ID=79887602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022761909.2U Active CN215632871U (en) | 2020-11-25 | 2020-11-25 | Oil and gas production wellhead device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215632871U (en) |
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2020
- 2020-11-25 CN CN202022761909.2U patent/CN215632871U/en active Active
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