CN219101313U

CN219101313U - Air tap sleeve and air lift device

Info

Publication number: CN219101313U
Application number: CN202320084702.7U
Authority: CN
Inventors: 任垒; 杜远宗; 王平; 刘书权; 王素文; 李韧
Original assignee: China Petroleum and Chemical Corp
Current assignee: China Petroleum and Chemical Corp
Priority date: 2023-01-29
Filing date: 2023-01-29
Publication date: 2023-05-30
Anticipated expiration: 2033-01-29

Abstract

The utility model belongs to the technical field of oil and gas exploitation, and particularly relates to an air tap sleeve and an air lift device. The air tap sleeve comprises a sleeve body, at least two air tap mounting cavities are formed in the sleeve body, each air tap mounting cavity is provided with an inlet connecting channel connected with an inlet and an outlet connecting channel connected with an outlet, and a cavity switching device for switching the air tap mounting cavity communicated with the inlet is arranged on the inlet connecting channel. The utility model can realize the switching of the on-off state between different chambers, and further realize the replacement of the air tap in the non-conducting chamber under the condition of not interfering the gas circulation of the conducting chamber, thereby realizing continuous gas lift without stopping production and avoiding the oil gas yield from sliding down caused by the suspension of the gas lift.

Description

Air tap sleeve and air lift device

Technical Field

The utility model belongs to the technical field of oil and gas exploitation, and particularly relates to an air tap sleeve and an air lift device.

Background

In the middle and later stages of development of the oil-gas field, the formation reduces the liquid carrying production capacity of the oil-gas well due to the reduction of self-injection energy, and the phenomenon of liquid accumulation in a shaft is easy to occur, so that the productivity of the gas field well is reduced. In the prior art, a drainage gas production technology of pressurizing gas lift is generally adopted to restore the productivity of a shaft, natural gas is generally taken as a gas source, and is injected into the bottom of the shaft after being pressurized at the bottom surface, so that the gas flow of a production layer corresponding to the shaft reaches more than critical liquid carrying flow again, and further the production of liquid carrying is realized again. Therefore, in the process, aiming at production conditions such as different production stages of a single well or simultaneous gas lift of multiple wells, in order to ensure that the oil and gas wells always keep high-efficiency production, the gas production efficiency is improved, and the gas amount of the gas lift needs to be dynamically adjusted and distributed in real time.

The Chinese patent with the authority bulletin number of CN217055115U and the authority bulletin day of 2022, 7 and 26 discloses a throttling device for controlling the self-injection yield of an oil and gas well, which comprises an air nozzle sleeve internally provided with a straight through channel, wherein one end of the air nozzle sleeve is an air inlet end, and the other end of the air nozzle sleeve is a plugging end. The air inlet end of the air tap sleeve is provided with an anti-blocking device and an air tap, the blocking end is provided with a detachable blocking structure, an air outlet cavity is further arranged in the air tap sleeve, an oil gas outlet is arranged on one radial side of the air outlet cavity, the air tap is fixedly arranged on the anti-blocking device, and the air tap and the anti-blocking device are convenient to detach and clean.

The air tap sleeve of the throttling device is similar to the existing traditional air tap sleeve structure, is of a single-chamber structure, and can only be provided with one air tap, so that when the air tap needs to be replaced, valves on the upper and lower sides of the air tap sleeve are closed first and then replaced, temporary interruption of gas lift during replacement is necessarily caused, continuous gas lift output cannot be carried out, and efficient production of an oil-gas well is not facilitated.

The Chinese patent with the grant number of CN211008589U and the grant date of 2020, 7 and 14 discloses an indexing multi-oil nozzle blowout device, which comprises a valve body, wherein a lower valve seat valve hole and an outlet channel communicated with the lower valve seat valve hole are arranged in the valve body along the axial direction of the valve body, and an inlet channel is arranged at the position of a branch pipe of the valve body. The bottom of the valve hole of the lower valve seat is tightly attached to the lower valve seat and is provided with a liquid outlet hole and a transmission shaft with one end propped against the lower valve seat, a plurality of liquid inlet holes are arranged at intervals on the radial direction of the transmission shaft, and oil gas nozzles with different apertures are respectively placed. The transmission shaft can center the hole position of each oil air tap with the hole position of the liquid outlet hole of the lower valve seat by rotating under the action of external force, so that the oil air tap is communicated with the inlet channel and the outlet channel, and the air tap station reversing is realized. Therefore, the working oil gas nozzle can be adjusted in size without stopping production to switch the gas nozzle station.

The multiple chamber structures of the device are formed by gaps between the air tap sleeves and the transmission shaft, and the air tap can be replaced without stopping production, but because the air tap is installed in the deep part of the internal structure, the premise of realizing the replacement operation is that all air taps are installed in corresponding positions in advance and are intact, if the additional air tap which is not installed is required to be replaced on the device or a certain air tap on the device is damaged and needs to be replaced, the device is still required to be disassembled and replaced with stopping production, and at the moment, the continuous production of an oil-gas well cannot be realized. The two devices and the air tap sleeve are more suitable for the gas outlet operation of the production and the blowout of the oil and gas well, and the air tap sleeve or the gas lifting device which can be used for the gas lifting operation of the oil and gas field and can realize the replacement of the air tap without stopping production at present.

Disclosure of Invention

The utility model aims to provide an air tap sleeve so as to solve the technical problem that continuous output cannot be realized when an air tap of the air tap sleeve is replaced in the prior art.

The utility model also aims to provide a gas lifting device to solve the same technical problems.

In order to achieve the above purpose, the technical scheme of the air tap sleeve provided by the utility model is as follows:

the utility model provides an air cock cover, includes the cover body, set up two at least air cock installation cavity in the cover body, each air cock installation cavity be equipped with the access connection passageway of access connection and with exit linkage's exit linkage, be equipped with on the access connection passageway be used for switching with the cavity switching device of the air cock installation cavity of import intercommunication.

The beneficial effects are that: the utility model is improved in that at least two air tap mounting chambers are arranged in the sleeve body and are connected with the same inlet connecting channel and the same outlet connecting channel, and meanwhile, a chamber switching device is arranged on the inlet connecting channel, so that the switching of the conducting or closing states of different chambers is realized, and the replacement of the air tap in the non-conducting chamber under the condition of not interfering the gas circulation of the conducting chamber is further realized. And when the gas is replaced, the chambers are mutually independent and are controlled by the chamber switching device, so that normal operation of other communicated chambers is not influenced, the gas nozzles in the other chambers are conveniently replaced while gas injection and gas lift are carried out, after the replacement is finished, the flow channel switching is carried out through the chamber switching device, the continuous gas lift of the oil gas well is not stopped, and the oil gas yield downslide caused by gas lift suspension is avoided. Finally, the air nozzles in the respective chambers are replaced under the condition that the production of the oil-gas well is not stopped.

As a further improvement, the inlets of the inlet connection channels are converged and connected at one position, and the chamber switching device is a switching valve positioned at the converged position.

The beneficial effects are that: the inlet of the inlet connecting channel is converged and connected to one position, the switching valve is arranged at the position, the control of all air tap mounting cavities can be realized by only arranging one switching valve, the internal structure of the air tap sleeve is simplified, the air tap sleeve is more compact, the replacement operation steps of the air tap are simplified, and the replacement efficiency is improved.

As a further improvement, two air tap mounting chambers are arranged, and the switching valve is a two-way ball valve.

The beneficial effects are that: the air faucet mounting chambers are arranged to be two, the double-pass ball valve with a simple structure and easy control is used, the air faucet can be replaced without stopping production through a small number of chambers, the production cost and the processing difficulty are reduced, the structure is simple and compact, and the processing and the operation are convenient.

As a further improvement, the chamber switching device further comprises a handle connected with the two-way ball valve through a transmission connecting rod, and the handle is used for driving the transmission connecting rod to switch the valve opening and closing state of the two-way ball valve through rotating the handle.

The beneficial effects are that: the valve port switch of the bi-pass ball valve is switched through the rotating handle and the transmission connecting rod, the whole structure is simple, the operation is convenient, and the air tap replacement efficiency can be further improved.

As a further improvement, the chamber switching device is provided with a chamber state indicating structure for displaying the open or closed state of the corresponding chamber when the chamber switching device switches the chamber.

The beneficial effects are that: the setting of the cavity state indicating structure is convenient for knowing and observing the current cavity switch state, avoiding misoperation and improving the safety of air tap replacement.

As a further improvement, the cavity state indicating structure comprises an indicating mark line arranged on the sleeve body and an indicating piece correspondingly arranged on the cavity switching device.

The beneficial effects are that: the indication mark line and the indication piece are simpler and more visual, and the judgment of the opening and closing state of the cavity is facilitated.

As a further improvement, the air tap mounting chamber is provided with a detachable sealing cover.

The beneficial effects are that: the detachable sealing cover is arranged, so that the quick disassembly and assembly of the air tap are convenient to replace, and the air tap replacement efficiency is improved.

As a further improvement, the sealing cover is provided with a pressure relief valve communicated with the air tap mounting cavity.

The beneficial effects are that: the pressure relief valve is arranged to relieve pressure of the corresponding chamber before the air tap is replaced, so that the safety of the air tap during replacement is effectively ensured.

As a further improvement, a one-way valve is provided on at least one of the inlet connection passage and the outlet connection passage.

The beneficial effects are that: the one-way valve is arranged to better realize one-way conduction from the air inlet to the air outlet, so that the backflow of the air is prevented.

In order to achieve the above purpose, the technical scheme of the gas lift device provided by the utility model is as follows:

the utility model provides a gas lift device, includes the air cock cover, the air cock cover includes the cover body, set up two at least air cock installation cavity in the cover body, each air cock installation cavity be equipped with the access connection passageway of access connection and with exit linkage's exit linkage passageway, be equipped with on the access connection passageway be used for switching with the cavity switching device of the air cock installation cavity of import intercommunication.

Drawings

FIG. 1 is a schematic view of the overall structure of an air cap according to the present utility model;

FIG. 2 is a schematic view of a cross-sectional view of the air cap sleeve of FIG. 1;

FIG. 3 is a schematic view of a cross-sectional B-B configuration of the air cap sleeve of FIG. 1.

Reference numerals illustrate:

1. a sleeve body; 2. a first chamber; 3. a second chamber; 4. an inlet; 5. an outlet; 6. sealing cover; 7. a pressure release valve; 8. an inlet connection tube; 9. an outlet connection tube; 10. a two-way ball valve; 11. a one-way valve; 12. a handle; 13. a first opening indication line; 14. a second opening indication line; 15. closing the indication line.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

The present utility model is described in further detail below with reference to examples.

The utility model provides a specific embodiment 1 of an air tap sleeve, which comprises the following steps:

the air tap sleeve provided in this embodiment is shown in fig. 1, 2 and 3, and mainly includes a cylindrical sleeve body 1, a first chamber 2 and a second chamber 3 parallel to each other are provided in the sleeve body 1 along the axial direction of the sleeve body, and air tap mounting positions are provided in the chambers to form an air tap mounting chamber, and threads are provided on the air tap mounting positions for threaded connection with an air injection air tap. And the upper end and the lower end of the radial direction of the chamber perpendicular to the installation direction of the air tap are respectively provided with an inlet 4 and an outlet 5, the inlet 4 and the outlet 5 are simultaneously communicated with the two chambers through an inlet connecting channel or an outlet connecting channel, and the two chambers are centrally arranged on the two radial sides of the two chambers respectively. An inlet connecting pipe 8 and an outlet connecting pipe 9 are extended at the positions of the sleeve body 1 corresponding to the inlet 4 and the outlet 5, so that the air tap sleeve is convenient to connect with the corresponding gas lifting component.

The inlet connecting channel and the outlet connecting channel are of Y-shaped structures, a double-way ball valve 10 is arranged at the Y-shaped branch of the inlet connecting channel, the double-way ball valve 10 is in transmission connection with a handle 12 arranged on the outer side of the sleeve body 1 through a transmission connecting rod, the valve opening and closing states of the double-way ball valve 10 can be switched by rotating the handle 12, and one-way valves 11 are respectively arranged on the Y-shaped branches of the outlet connecting channel. Therefore, through arranging two independent chambers in the sleeve body 1 and connecting the two independent chambers with the common inlet 4 and the common outlet 5, and simultaneously arranging the double-pass ball valve 10 and the transmission handle 12 on the inlet 4, the switching of the conducting or closing states among different chambers is realized.

The upper end threads of the two air tap mounting cavities are provided with the detachable sealing covers 6, so that the air tap in the non-conducting cavity is quickly replaced, and the air chambers are mutually independent during replacement, so that other conducting air chambers are not influenced, the air injection air tap in other cavities can be replaced while the air is lifted, and continuous air lift is realized without stopping production.

In this embodiment, the sealing cover 6 is further provided with a first opening indication line 13 corresponding to the opening state of the first chamber 2, a second opening indication line 14 corresponding to the opening state of the second chamber 3, and a closing indication line 15 corresponding to the simultaneous closing state of the two air chambers, and the opening and closing states of the chambers can be determined relatively intuitively by rotating the handle 12 and making the handle serve as an indication member. Meanwhile, a pressure relief valve 7 communicated with the cavity is arranged between the sealing cover 6 and the cavity, and a control switch of the corresponding pressure relief valve 7 is arranged at the corresponding position of the end cover, so that the corresponding cavity can be decompressed before the air tap is replaced.

When the air tap sleeve is used, the inlet connecting pipe 8 is connected with a corresponding high-pressure air supply pipeline, the outlet connecting pipe 9 is connected with a pipeline of a corresponding underground air lifting device, the air inlet orifice 4 is communicated with the first chamber 2 in one way by rotating the handle 12 to the first opening indication line position 13, at the moment, the first chamber 2 and the second chamber 3 are kept relatively independent, and high-pressure air injection can be performed through the first chamber 2. When the gas injection nozzle needs to be replaced, after the pressure relief valve 7 of the second chamber 3 is utilized to complete the pressure relief of the second chamber 3, the sealing cover 6 is disassembled, the gas injection nozzle of the second chamber 3 is replaced, then the sealing cover 6 is assembled back, the handle 12 is rotated to the second opening indication line position 14, the gas inlet channel switching is completed, and the gas injection nozzle replacement during continuous gas injection can be realized. When the gas injection is required to be stopped, the handle is rotated to the position of the closing indication line 15.

The embodiment 2 of the air tap sleeve provided by the utility model comprises the following components:

in embodiment 1 of the air tap sleeve of the present utility model, the inlet 4 of the inlet connection channel is converged and connected at one position, and the chamber switching device is a switching valve located at the converged position. In this embodiment, the inlets 4 of the inlet connection channels may not be converged at one position, and the opening and closing valves may be respectively installed on the inlets 4 to perform the opening and closing control of the valve ports.

The embodiment 3 of the air tap sleeve provided by the utility model comprises the following components:

in embodiment 1 of the air tap sleeve of the present utility model, two air tap mounting chambers are provided, and the switching valve is a two-way ball valve 10. In this embodiment, three or more air tap installing chambers may be provided, and the switching valve may be replaced with N-way valves corresponding to the number of air tap installing chambers.

The embodiment 4 of the air tap sleeve provided by the utility model comprises:

in embodiment 1 of the air tap sleeve of the present utility model, the chamber switching device comprises a handle 12 connected with the two-way ball valve 10 through a transmission link, and the handle 12 is rotated to drive the transmission link to switch the valve opening and closing state of the two-way ball valve 10. In this embodiment, the handle 12 may be replaced by a hand wheel, or other switching mechanisms, such as an electrically operated control mechanism, etc. may be used.

The embodiment 5 of the air tap sleeve provided by the utility model comprises the following components:

in embodiment 1 of the air tap sleeve of the present utility model, the chamber control device is provided with a chamber state indicating structure for displaying an open or closed state of the corresponding chamber when the chamber switching device switches the chamber. In the present embodiment, the determination may be made based on the orientation and operation experience of the handle 12 without providing a chamber state indicating structure if conditions allow.

The embodiment 6 of the air tap sleeve provided by the utility model comprises the following components:

in embodiment 1 of the air tap sleeve of the present utility model, the cavity state indicating structure includes an indicating mark line provided on the sleeve body 1 and an indicating piece correspondingly provided on the cavity switching device. In this embodiment, the color block and the display hole rotating with the handle 12 may be replaced by a corresponding color block, or the status may be displayed by an indicator light when the chamber switching device is electrically controlled.

The utility model provides a specific embodiment 7 of an air tap sleeve:

in embodiment 1 of the air cap sleeve of the present utility model, the air cap installation chamber is provided with a detachable sealing cap 6. In this embodiment, the sealing cover 6 may not be provided, and the corresponding air tap structure may be adaptively adjusted to facilitate replacement.

The embodiment 8 of the air tap sleeve provided by the utility model comprises the following components:

in the embodiment 1 of the air tap sleeve of the utility model, the pressure relief valves 7 communicated with the respective air tap mounting cavities are arranged on the sealing cover 6. In this embodiment, one total relief valve 7 may be used for each chamber or no relief valve 7 may be provided depending on the specific conditions.

The utility model provides a specific embodiment 9 of an air tap sleeve:

in the embodiment 1 of the air tap sleeve of the utility model, the outlet 5 is provided with a one-way valve 11. In this embodiment, the check valve 11 may be mounted on the inlet 4 or the check valve 11 may not be provided, or the check valve 11 may be mounted on a corresponding connection pipe line other than the inlet 4 or the outlet 5, as the case may be.

Embodiments of the gas lift apparatus of the present utility model:

the embodiment of the gas lift device, that is, the gas lift device using the gas cap described in any one of embodiments 1 to 9 of the gas cap, will not be described in detail herein.

It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited to the above-mentioned embodiments, but may be modified without inventive effort or equivalent substitution of some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an air cock cover, includes the cover body, its characterized in that, set up two at least air cock installation cavity in the cover body, each air cock installation cavity be equipped with the access connection passageway of access connection and with the exit linkage passageway of exit linkage, be equipped with on the access connection passageway be used for switching with the cavity auto-change over device of the air cock installation cavity of import intercommunication.

2. The air cap of claim 1, wherein the inlet of the inlet connection passage is convergent and connected at one location, and the chamber switching device is a switching valve located at the convergent location.

3. The air tap sleeve of claim 2, wherein two air tap mounting chambers are provided, and the switching valve is a two-way ball valve.

4. The air cock cover according to claim 3, wherein the chamber switching device further comprises a handle connected with the two-way ball valve through a transmission connecting rod, and the handle is rotated to drive the transmission connecting rod to switch the valve opening and closing state of the two-way ball valve.

5. The air cap according to claim 4, wherein the chamber switching device is provided with a chamber state indicating structure for displaying an opened or closed state of the corresponding chamber when the chamber switching device switches the chamber.

6. The air faucet sleeve according to claim 5, wherein the chamber state indicating structure comprises an indicating mark line arranged on the sleeve body and an indicating piece correspondingly arranged on the chamber switching device.

7. The air cap sleeve according to any one of claims 1-6, wherein the air cap mounting chamber is provided with a removable sealing cap.

8. The air cap sleeve of claim 7, wherein the sealing cover is provided with a pressure relief valve in communication with the air cap mounting chamber.

9. The air cap according to any one of claims 1-6, wherein at least one of the inlet connection passage and the outlet connection passage is provided with a one-way valve.

10. A gas lift device comprising a gas cap, wherein the gas cap is as claimed in any one of claims 1 to 9.