CN219119221U - Production air cock - Google Patents

Production air cock Download PDF

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Publication number
CN219119221U
CN219119221U CN202223229827.9U CN202223229827U CN219119221U CN 219119221 U CN219119221 U CN 219119221U CN 202223229827 U CN202223229827 U CN 202223229827U CN 219119221 U CN219119221 U CN 219119221U
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China
Prior art keywords
air
hole
cavity
production
tap
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CN202223229827.9U
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Chinese (zh)
Inventor
申健
张贵芳
张安妮
王小央
杨丽
梁曦丹
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China Petroleum and Chemical Corp
Petroleum Engineering Technology Research Institute of Sinopec Zhongyuan Oilfield Co
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China Petroleum and Chemical Corp
Petroleum Engineering Technology Research Institute of Sinopec Zhongyuan Oilfield Co
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Priority to CN202223229827.9U priority Critical patent/CN219119221U/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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Abstract

The utility model provides a production air tap, and belongs to the technical field of production air taps. The production air tap comprises an air tap body, wherein a through hole for natural gas circulation is formed in the air tap body, a pneumatic cavity is formed between two ends of the through hole, a movable blocking body is movably mounted in the extending direction of the through hole in the pneumatic cavity in a guiding mode, the movable blocking body and the through hole are arranged opposite to each other so that gas entering the pneumatic cavity through the through hole can push the movable blocking body to move towards the corresponding direction, a plug for plugging the through hole is arranged on one side, close to an air inlet end, of the movable blocking body, a limiting structure is arranged between the movable blocking body and the pneumatic cavity, a certain interval is kept between the movable blocking body and the corresponding end of the pneumatic cavity when the movable blocking body moves towards the air outlet end, and a channel for natural gas circulation is formed between the movable blocking body and the inner wall of the pneumatic cavity. The production air tap provided by the utility model can effectively solve the technical problem that the production air tap needs to be replaced frequently when the pressure of a gas well is unstable in the prior art.

Description

Production air cock
Technical Field
The utility model relates to a production air tap, and belongs to the technical field of production air taps.
Background
The existing natural gas well production air tap comprises an air tap body, wherein one end of the air tap body is provided with connecting threads, the middle of the air tap body is provided with a convex sealing check ring, the other end of the air tap body is provided with a fastening step, and the inside of the air tap body is also provided with an equal-diameter through hole. The high-pressure natural gas in the well enters the production pipeline after being compressed and throttled through the constant-diameter through hole on the air tap.
During the exploitation of a natural gas well, the formation energy continuously decreases with the increase of the exploitation amount, and the yield gradually enters a low-pressure low-yield stage from a high-pressure high-yield stage. In order to cope with the use scene of low yield and low pressure, chinese patent application publication No. 2011.05.04 and publication No. CN201818291U disclose a natural gas well air tap which is formed by processing a cylindrical steel nipple, one end of the outer part of the air tap is processed with a connecting thread, the other end of the outer part of the air tap is processed with a fastening step, the middle of the air tap is processed with a raised sealing retainer ring, and the inner structure of the air tap is sequentially provided with a conical drainage cavity, a through hole, an oscillating cavity and a spraying cavity. When the gas nozzle is used on a low-yield low-pressure natural gas production well, the beneficial effects of reducing natural gas energy consumption of the gas well, improving the fluidity of the well fluid, avoiding the well fluid from accumulating at the well mouth, reducing the back pressure in the well, prolonging the production time of the gas well and the like can be realized.
Although the air tap can meet the use scene of low yield and low pressure, when the pressure in the natural gas production gathering and transportation pipeline network is higher than the production pressure at the wellhead of the gas well, and the pressure data of the natural gas well is disordered, the pressure is difficult to recover, the yield is unstable or the production is stopped, on-site staff is still required to shut in the well and exchange production air taps with different apertures, so that the production condition of the gas well is improved; or taking well closing measures, starting the well to produce after the production pressure of the gas well rises to a required value, and maintaining the yield of the gas well by using the periodic production mode.
Disclosure of Invention
The utility model aims to provide a production air tap so as to solve the technical problem that the production air tap needs to be replaced frequently when the pressure of a gas well is unstable in the prior art.
The production air tap adopts the following technical scheme:
the production air tap comprises an air tap body, wherein a through hole for natural gas circulation is formed in the air tap body, a pneumatic cavity is formed between two ends of the through hole, a movable blocking body is movably mounted in the extending direction of the through hole in the pneumatic cavity in a guiding mode, the movable blocking body and the through hole are arranged opposite to each other so that gas entering the pneumatic cavity through the through hole can push the movable blocking body to move towards the corresponding direction, a plug for plugging the through hole is arranged on one side, close to an air inlet end, of the movable blocking body, a limiting structure is arranged between the movable blocking body and the pneumatic cavity, a certain interval is kept between the movable blocking body and the corresponding end of the pneumatic cavity when the movable blocking body moves towards the air outlet end, and a channel for natural gas circulation is formed between the movable blocking body and the inner wall of the pneumatic cavity.
The beneficial effects are that: the utility model provides a new production air tap aiming at the improvement of the existing production air tap, when the production air tap is used, when the gas pressure in the natural gas well is higher than the pressure in a gathering and conveying pipeline, natural gas flows into the gathering and conveying pipeline through the production air tap, the natural gas enters a pneumatic cavity through the air inlet end of a through hole, the natural gas acts on a movable resistor in the pneumatic cavity to push the movable resistor to move towards the air outlet end of the pneumatic cavity, the movable resistor stops moving under the action of a limiting structure, and the natural gas enters the through hole of an air outlet tap through a channel between the movable resistor and the inner wall of the pneumatic cavity and finally enters the production and conveying pipeline; when the pressure of the gas in the natural gas well is lower than the pressure in the gathering and conveying pipeline, the pressure of the natural gas in the gathering and conveying pipeline acts on the movable resistor in the pneumatic cavity through the gas outlet end of the through hole to push the movable resistor to move towards the gas inlet end, and when the plug is in sealing fit with the through hole on the corresponding side, the production gas nozzle stops working, and the natural gas well stops production at the moment. When the pressure difference exists between the pressure of the natural gas wellhead and the pressure in the gathering pipeline, the production air tap provided by the embodiment can be automatically opened and closed, so that the automatic production of the natural gas well is achieved, the pressure fluctuation of the gas well is reduced, and the effect of manually opening and closing the well is reduced.
Further, a plurality of supporting legs for supporting on the inner wall of the pneumatic cavity are arranged at intervals in the circumferential direction of the movable resistor body, so that the movable resistor body is guided and movably installed in the pneumatic cavity through the supporting legs.
The beneficial effects are that: the movable resistor body is movably arranged in the pneumatic cavity through the supporting legs, so that the movable resistor body is convenient to assemble, and the movable resistor body has the characteristics of simple structure and convenience in processing.
Further, the supporting leg is arranged on one side of the movable resistor body, which is close to the air outlet end, and is provided with a horizontal extension section extending along the extending direction of the through hole, and the horizontal extension section forms the limiting structure.
The beneficial effects are that: utilize the horizontal extension section on the landing leg to form limit structure, simple structure and convenient processing.
Further, the pneumatic cavity is a cylindrical cavity, the movable resistor is a circular plate, and the pneumatic cavity and the movable resistor are coaxially arranged.
The beneficial effects are that: the pneumatic cavity is arranged to be a cylindrical cavity, the movable resistor is arranged to be a circular plate, and the movable resistor and the circular plate are coaxially arranged to ensure that the stress of the movable resistor is more balanced, the movable resistor is more stable, and then the stability of the product during use is improved.
Further, an orifice of the through hole at one side of the air inlet end, which is communicated with the pneumatic cavity, is a conical opening, and a spherical surface matched with the conical opening is arranged on the plug.
The beneficial effects are that: the conical opening is matched with the spherical surface on the plug, so that the sealing performance during plugging can be improved.
Further, the air tap body comprises an air inlet tap and an air outlet tap, and at least one of the air inlet tap and the air outlet tap is provided with a cavity, so that the air inlet tap and the air outlet tap jointly enclose the pneumatic cavity when the air inlet tap and the air outlet tap are assembled.
The beneficial effects are that: when the movable resistor is installed, the air inlet nozzle and the air outlet nozzle are detached, the movable resistor is placed into the cavity through the opening of the cavity and then assembled together, and therefore the movable resistor is convenient to disassemble and assemble.
Further, the aperture of the through hole on the air inlet nozzle is smaller than that of the through hole on the air outlet nozzle.
The beneficial effects are that: the aperture of the through hole on the air inlet nozzle is smaller than that of the through hole on the air outlet nozzle, so that natural gas is compressed and throttled when passing through the through hole on the air inlet nozzle, the pressure in the gas well is not released rapidly, and the effect of adjusting the gas well gas production pressure and yield is achieved.
Further, the air inlet nozzle is provided with an extending section which is used for extending into the cavity, and the extending section is in threaded connection with the cavity to jointly enclose the pneumatic cavity.
The beneficial effects are that: when the air inlet nozzle and the air outlet nozzle are assembled, the extending section on the air inlet nozzle is in threaded connection with the upper cavity of the air outlet nozzle, so that the assembly is very convenient, and the air tightness is good.
Further, a stop step is arranged on the periphery of the air inlet nozzle and is used for being in stop fit with the corresponding end face of the air outlet nozzle when the extending section extends into the cavity.
The beneficial effects are that: when the extending section extends into the cavity, the stop step is matched with the corresponding end face stop of the air outlet nozzle to form positioning, so that the installation efficiency is improved.
Further, the plug and the supporting leg are fixed on the movable resistor body through welding.
The beneficial effects are that: the plugs and the supporting legs are fixed on the movable resistor body through welding, so that the movable resistor body is convenient to process.
Drawings
FIG. 1 is a cross-sectional view of a production plug of example 1 of the present utility model;
fig. 2 is a top view of the motion resistor of fig. 1.
The names of the corresponding components in the figures are:
100. an air tap body; 101. an air inlet nozzle; 102. a stretch-in section; 103. an air outlet nozzle; 104. a pneumatic chamber; 105. a motion resistor; 106. a plug; 107. a support leg; 108. a horizontal extension; 109. a through hole; 110. a conical opening; 111. a limit step; 112. and (5) a retainer ring.
Detailed Description
The present utility model is described in further detail below with reference to examples.
Example 1 of the production nozzle of the present utility model:
as shown in fig. 1, the production air tap provided in this embodiment includes an air tap body 100, a through hole 109 is provided in the air tap body 100, a pneumatic cavity 104 is provided between two ends of the through hole 109, a movable blocking body 105 is movably mounted in the pneumatic cavity 104 in a guiding manner, a plug 106 is provided on the movable blocking body 105, and a channel for natural gas to circulate is provided between the movable blocking body 105 and an inner wall of the pneumatic cavity 104.
Specifically, in this embodiment, as shown in fig. 1, the air faucet body 100 includes an air inlet nozzle 101 and an air outlet nozzle 103, a cavity is disposed on the air outlet nozzle 103, an extending section 102 extending into the cavity is disposed on the air inlet nozzle 101, and the extending section 102 is screwed with the cavity to jointly enclose a pneumatic cavity 104. A plurality of supporting legs 107 are arranged on the movable resistor 105 at intervals in the circumferential direction, and the movable resistor 105 is in supporting contact with the inner wall of the pneumatic cavity 104 through the supporting legs 107, so that guiding and movable installation in the pneumatic cavity 104 is realized. The plug 106 is disposed on a side of the movable resistor 105 facing the air inlet end, so as to plug the through hole 109 on the corresponding side when the movable resistor 105 moves toward the air inlet end.
In this embodiment, in order to enable the gas entering the pneumatic cavity 104 to push the movable resistor 105 to move towards the corresponding direction, the movable resistor 105 is arranged opposite to the through hole 109, and in order to ensure the normal use of the production air tap, a gap is left between the movable resistor 105 and the inner wall of the pneumatic cavity 104, and the gap forms a channel for the natural gas to circulate. In order to ensure that the movable resistor 105 moves stably, as shown in fig. 1 and 2, the pneumatic cavity 104 is a cylindrical cavity, and the movable resistor 105 is a circular plate and is coaxially arranged between the two.
In this embodiment, when the gas pressure in the natural gas well is higher than the pressure in the gathering and delivering pipeline, the natural gas enters the pneumatic cavity 104 through the air inlet end of the through hole 109 and pushes the movable resistor 105 to move towards the air outlet end, in order to avoid the movable resistor 105 blocking the corresponding side through hole 109, a limiting structure is arranged between the movable resistor 105 and the pneumatic cavity 104, the limiting structure is specifically a horizontal extension section 108 on the supporting leg 107, the supporting leg 107 is arranged on one side of the movable resistor 105 facing the air outlet end, the horizontal extension section 108 extends along the extending direction of the through hole 109, and when the movable resistor 105 moves towards the air outlet end, the horizontal extension section 108 is in blocking fit with the side wall of the corresponding end of the pneumatic cavity 104, so that the movable resistor 105 keeps a certain interval with the corresponding end of the pneumatic cavity 104.
In this embodiment, in order to ensure the tightness of the plugging, as shown in fig. 1, the hole 109 on the air inlet end side is a conical opening 110, and the plug 106 has a spherical surface adapted to the conical opening 110.
In this embodiment, in order to adjust the produced gas pressure and the output of the gas well, as shown in fig. 1, the aperture of the through hole 109 on the gas inlet nozzle 101 is smaller than the aperture of the through hole 109 on the gas outlet nozzle 103, so that when the natural gas passes through the through hole 109 on the gas inlet nozzle 101, the natural gas is compressed and throttled, so that the pressure in the gas well is not released quickly, and the effect of adjusting the produced gas pressure and the output of the gas well is achieved.
In this embodiment, as shown in fig. 1, a connecting thread is formed on an end of the air outlet nozzle 103 near the air outlet end, a fastening step is formed on an end of the air inlet nozzle 101 near the air inlet end, the fastening step is formed by a stop step, and a raised retainer 112 is formed on the air outlet nozzle 103.
When the production air tap provided by the embodiment is used, when the gas pressure in the natural gas well is higher than the pressure in the gathering pipeline, natural gas flows into the gathering pipeline through the production air tap, natural gas enters the pneumatic cavity 104 after being compressed and throttled through the through hole 109 on the air inlet tap 101, the compressed and throttled natural gas acts on the movable resistor 105 in the pneumatic cavity 104 to push the movable resistor 105 to move towards the air outlet end of the pneumatic cavity 104, after the horizontal extension section 108 is matched with the side wall of the corresponding end of the pneumatic cavity 104 in a blocking manner, the movable resistor 105 stops moving, and the natural gas enters the through hole 109 of the air outlet tap 103 through a channel between the movable resistor 105 and the inner wall of the pneumatic cavity 104 and finally enters the production gathering pipeline; when the gas pressure in the natural gas well is lower than the pressure in the gathering and conveying pipeline, the natural gas pressure in the gathering and conveying pipeline acts on the movable resistor 105 in the pneumatic cavity 104 through the through hole 109 of the gas outlet nozzle 103 to push the movable resistor 105 to move towards the gas inlet end, and when the plug 106 is in sealing fit with the through hole 109 on the gas inlet nozzle 101, the production gas nozzle stops working, and the natural gas well stops production at the moment. When the pressure difference exists between the pressure of the natural gas wellhead and the pressure in the gathering pipeline, the production air tap provided by the embodiment can be automatically opened and closed, so that the automatic production of the natural gas well is achieved, the pressure fluctuation of the gas well is reduced, and the effect of manually opening and closing the well is reduced.
Example 2 for producing an air tap in the present utility model:
the present embodiment is different from embodiment 1 in that in embodiment 1, the plug and the leg are fixed to the movable resistor by welding. In this embodiment, the plug, the leg and the movable resistor are integrally formed.
Example 3 of the production nozzle of the present utility model:
this embodiment differs from embodiment 1 in that in embodiment 1, a stopper step is provided on the outer periphery of the air intake nozzle. In this embodiment, a stop step is disposed on the outer periphery of the air inlet nozzle, and a fastening step is disposed on one end of the air inlet nozzle, which is close to the air inlet end.
Example 4 of the production nozzle of the present utility model:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the air inlet nozzle is provided with an extending section, and the extending section is in threaded connection with the cavity to jointly enclose a pneumatic cavity. In this embodiment, the air inlet nozzle is provided with a protruding section, the corresponding end surface of the air inlet nozzle is provided with a turning edge, and the air inlet nozzle is connected with the corresponding end surface of the air outlet nozzle through the corresponding turning edge.
Example 5 of the production nozzle of the present utility model:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the aperture of the through hole on the air intake nozzle is smaller than the aperture of the through hole on the air outlet nozzle. In this embodiment, the aperture of the through hole on the air inlet nozzle is equal to the aperture of the through hole on the air outlet nozzle.
Example 6 for producing an air tap in the present utility model:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the air inlet nozzle is provided with an extending section, and the air outlet nozzle is provided with a cavity. In this embodiment, the air inlet nozzle and the air outlet nozzle are both provided with cavities, the corresponding end surfaces of the air inlet nozzle and the air outlet nozzle are provided with turning edges, the air inlet nozzle and the air outlet nozzle are connected through the turning edges, the cavities on the air inlet nozzle and the air outlet nozzle jointly enclose a pneumatic cavity, and in order to ensure air tightness, a sealing ring can be arranged between the end surfaces of the air inlet nozzle and the air outlet nozzle.
Example 7 of the production nozzle of the present utility model:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the hole on the air inlet end side, through which communicates with the pneumatic chamber, is a conical opening, and the plug has a spherical surface adapted to the conical opening. In this embodiment, the hole on the air inlet end side is a cylindrical opening, and the plug has a cylindrical surface adapted to the cylindrical opening.
Example 8 of the production nozzle of the present utility model:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the pneumatic chamber is a cylindrical chamber, and the moving resistor is a circular plate, and the two are coaxially arranged. In this embodiment, the pneumatic cavity is a rectangular cavity, and the movable resistor is a rectangular plate, which are not coaxially arranged.
Example 9 of the production nozzle in the present utility model:
the present embodiment is different from embodiment 1 in that in embodiment 1, the horizontal extension section forms a limit structure. In this embodiment, the corresponding end of the pneumatic cavity is prevented from being provided with a limiting column, and the limiting column is provided with a limiting structure.
Example 10 of the production nozzle of the present utility model:
the present embodiment is different from embodiment 1 in that in embodiment 1, the movable resistor is movably installed in the pneumatic chamber through the leg guide. In this embodiment, a guide groove is disposed in the pneumatic cavity, the guide groove is consistent with the extending direction of the through hole, a guide block adapted to the guide groove is disposed on the movable block, and the movable block is movably assembled in the guide groove through the guide block.
Example 11 of the production nozzle of the present utility model:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the air nozzle body includes an air inlet nozzle and an air outlet nozzle. In this embodiment, the air tap body is an integral structure, and the side wall of the pneumatic cavity is provided with a mounting opening for mounting the movable resistor, and a stop block is detachably mounted at the mounting opening.
The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a production air cock, including the air cock body, the inside of air cock body is equipped with the through-hole that is used for supplying natural gas to circulate, its characterized in that, be equipped with pneumatic chamber between the both ends of through-hole, direction movable mounting moves the resistance body on pneumatic chamber's the extending direction of through-hole, move the resistance body and the through-hole just to be arranged so that the gas that gets into pneumatic chamber through the through-hole promotes to move the resistance body towards corresponding direction, move one side that is close to the inlet end on the resistance body and be equipped with the end cap that is used for shutoff through-hole, move and be equipped with limit structure between resistance body and the pneumatic chamber, keep certain interval with pneumatic chamber's corresponding end when making to move the resistance body towards the end activity of giving vent to anger, move and be equipped with the passageway that supplies natural gas to circulate between resistance body and the inner wall in pneumatic chamber.
2. The production air faucet of claim 1, wherein the movable resistor is circumferentially spaced apart with a plurality of legs for supporting on the inner wall of the pneumatic chamber for guided movable mounting within the pneumatic chamber by the legs.
3. The manufacturing nozzle of claim 2, wherein the leg is disposed on a side of the movable resistor adjacent to the air outlet end and has a horizontal extension extending in a direction of extension of the through hole, the horizontal extension forming the limit structure.
4. The production air faucet of claim 1, wherein the pneumatic chamber is a cylindrical chamber and the movable resistor is a circular plate coaxially disposed therebetween.
5. The production air faucet of claim 1, wherein the opening of the through hole on the air inlet end side, which is communicated with the pneumatic cavity, is a conical opening, and the plug is provided with a spherical surface which is matched with the conical opening.
6. The process air cap of any one of claims 1-5, wherein the air cap body comprises an air inlet cap and an air outlet cap, at least one of the air inlet cap and the air outlet cap having a cavity therein to collectively define the pneumatic cavity when the two are assembled.
7. The process air cap of claim 6, wherein the aperture of the through-hole in the air inlet cap is smaller than the aperture of the through-hole in the air outlet cap.
8. The manufacturing nozzle of claim 6, wherein the outlet nozzle is provided with a cavity, and the inlet nozzle is provided with an extension section for extending into the cavity, and the extension section is in threaded connection with the cavity to jointly enclose the pneumatic cavity.
9. The production air tap of claim 8 wherein a stop step is provided on the periphery of the air inlet tap for a stop engagement with a corresponding end face of the air outlet tap when the extension extends into the cavity.
10. A production air tap as claimed in claim 2 or claim 3 wherein the plug and leg are secured to the movable resistor by welding.
CN202223229827.9U 2022-12-02 2022-12-02 Production air cock Active CN219119221U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223229827.9U CN219119221U (en) 2022-12-02 2022-12-02 Production air cock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223229827.9U CN219119221U (en) 2022-12-02 2022-12-02 Production air cock

Publications (1)

Publication Number Publication Date
CN219119221U true CN219119221U (en) 2023-06-02

Family

ID=86527952

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223229827.9U Active CN219119221U (en) 2022-12-02 2022-12-02 Production air cock

Country Status (1)

Country Link
CN (1) CN219119221U (en)

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