CN213297921U - Integral gas lift device - Google Patents

Abstract

The utility model discloses an integral gas lift device, which belongs to the technical field of gas production and drainage devices, and comprises a blowout prevention pipe with a lower port connected with a wellhead, wherein a valve cavity for a plunger to hover is arranged in the blowout prevention pipe, a plunger catcher is arranged on the side wall of the valve cavity, and an upper port of the valve cavity is connected with an integrally formed blowout prevention cap; the valve cavity is also connected with the electric ball valve through a liquid discharge pipeline with two channels; the underground device comprises a plurality of valve bodies, one ends of the valve bodies are connected with the blowout preventer, and the other ends of the valve bodies are connected with an oil pipe provided with a plunger; a plurality of valve bodies pass through the annulus pipe and link to each other with the oil pipe, the annulus pipe still links to each other with drain line's exit end the utility model discloses lubricator adopts integrated into one piece, has avoided the unstable problem of device operation that low temperature deformation produced, and the governing valve effectual control water velocity through the drain line input, has avoided the passageway to block up and has made the unclean problem of drainage.

Description

Integral gas lift device

Technical Field

The utility model relates to a gas production drainage device technical field, concretely relates to integral gas lift device.

Background

The plunger gas lift is characterized in that a plunger is thrown into a well to generate a mechanical gas-liquid interface, the energy of the well is benefited to push the plunger to lift liquid periodically in an oil pipe, gas is prevented from flowing upwards and liquid is prevented from falling back, the liquid slippage effect is reduced, and the intermittent gas lift efficiency is improved. However, in recent years, the plunger gas lift is found to have some defects in field use in practical production: the pneumatic diaphragm valve pressure leading pipeline cannot drain completely, and residual water is easy to ice block at low temperature; the valve cavity is easy to throttle, so that the discharged liquid flows to the valve cavity and is easy to freeze and block.

SUMMERY OF THE UTILITY MODEL

The utility model provides an integral gas lift device for solve blowout preventer and the problem that device in the pit can not whole adaptation.

The utility model discloses a following technical scheme realizes:

an integrated gas lift device comprises a blowout preventer and a downhole device;

the blowout preventer comprises a blowout preventer with a lower port connected with a wellhead, a valve cavity for suspending a plunger is formed in the blowout preventer, a plunger catcher is arranged on the side wall of the valve cavity, and an upper port of the valve cavity is connected with an integrally formed blowout preventer cap; the valve cavity is also connected with the electric ball valve through a liquid discharge pipeline with two channels; the underground device comprises a plurality of valve bodies, one ends of the valve bodies are connected with the blowout preventer, and the other ends of the valve bodies are connected with an oil pipe provided with a plunger; the plurality of valve bodies are connected with the oil outlet pipe through an annular pipe, and the annular pipe is also connected with the outlet end of the liquid discharge pipeline.

Further, the blowout preventer is secured to the downhole device by a flange.

Further, the plunger is hollow inside and is provided with a temperature and pressure integrated sensor and a high-temperature lithium battery.

Furthermore, the drainage pipeline comprises side flow pipes and a main flow pipe, the side flow pipes and the main flow pipe are arranged in a Y shape, and the side flow pipes and the openings of the valve cavities are located at the same height.

Further, the liquid discharge pipeline is perpendicular to the valve cavity.

Further, the electric ball valve is a high-pressure low-torque electric ball valve.

Furthermore, a needle-type pressure relief sampling valve is arranged on the side wall of the lubricator and communicated with the valve cavity.

Furthermore, an electronic pressure sensor is further arranged on the side wall of the lubricator and communicated with the valve cavity.

Further, the needle-type pressure relief sampling valve and the electronic pressure sensor are located on the same side.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model can effectively realize the unstable operation of the device caused by low temperature deformation through the blowout preventer and the underground device which are matched with each other, so that the underground device is more reliable; the treatment from gas production to water drainage is realized through the underground device matched with the blowout device, so that the whole device is more convenient and faster; meanwhile, the blowout preventer and the underground device are connected by flanges instead of threads, so that the lifting speed of the plunger can be conveniently adjusted, and the effects of reducing leakage, facilitating disassembly, assembly and maintenance and the like are achieved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural view of a blowout preventer of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a front sectional view of the present invention;

fig. 4 is a top cross-sectional view of the present invention;

fig. 5 is a schematic diagram of the plunger structure of the present invention;

in the figure: 1-an electric valve; 2-plunger capture sensor; 3-a blowout prevention cap; 4-needle type pressure relief sampling valve; 5-an electronic pressure sensor; 6-adjusting the valve; 7-a main flow pipe; 8-branch pipes; 9-a valve cavity; 10-a plunger; 11-an annular hollow pipe; 12-oil outlet pipe.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

Referring to fig. 1-5, an integrated gas lift apparatus, comprising: comprises a blowout preventer and a downhole device; the blowout preventer comprises a blowout preventer, the blowout preventer is integrally formed, the problem of unstable operation of the device caused by low-temperature deformation is solved, an integrally formed blowout preventer cap 3 is sleeved above the blowout preventer, the blowout preventer cap 3 is different from the prior art in that a sand prevention plate belonging to the interior of the blowout preventer cap 3 is arranged below a plunger, isolation of sand and soil is completed from a source, a valve cavity 9 for the plunger to slide up and down is arranged in the blowout preventer, a drainage pipeline is connected to the side surface of the valve cavity 9 and comprises two lateral flow pipes and a main flow pipe which are symmetrically arranged, the two lateral flow pipes and the main flow pipe are Y-shaped, the included angle between the lateral flow pipes ranges from 60 degrees to 0 degrees, and preferably, the included angle between the two lateral flow pipes is 90 degrees; the water can be prevented from being smoothly discharged from the other side flow pipe under the condition that one side flow pipe is blocked; an adjusting valve is arranged above the lateral flow pipe, so that the drainage speed can be controlled;

the output end of the liquid discharge pipeline is provided with the high-pressure low-torque electric ball valve, and after the original ball valve is replaced by the high-pressure low-torque electric ball valve 1, the interception cannot be generated in the water discharge process, so that the ice blockage is not easy to generate, and further, the environment adaptability of the blowout preventer is improved by using the high-pressure low-torque electric ball valve 1;

the underground device comprises a plurality of valve bodies which are vertically arranged, the valve bodies are mainly a comprehensive adjusting device consisting of at least one valve body and a connecting pipe, one end of the comprehensive adjusting device is fixed with the blowout preventer on the upper part through a flange, the other end of the comprehensive adjusting device extends downwards, and a plunger can slide upwards from the lower end of the comprehensive adjusting device and starts to hover when reaching a plunger catcher of a valve cavity in the blowout preventer; discharging water at the upper end of the plunger through a liquid discharging device; the valve bodies on the valve bodies are used for controlling the speed of water and gas transmission; one end of each valve body is connected with the blowout preventer, and the other end of each valve body is connected with the plunger 10; a plurality of valve bodies pass through annular pipe 11 and link to each other with oil outlet pipe 12, and annular pipe 11's trend all is vertical or level, convenient to detach and installation, and annular pipe 11 still links to each other with drainage tube's exit end for control annular pipe 11 admits air.

The blowout preventer is fixed with the underground device through a flange, the blowout preventer adopts flange connection to replace threaded connection, the rising speed of the plunger is convenient to adjust, and meanwhile, the effects of reducing leakage, facilitating disassembly, assembly and maintenance and the like are achieved.

Referring to fig. 5, the plunger 10 is hollow inside, and has a combined cylindrical and conical shape.

Be equipped with integrative sensor of warm-pressing and high temperature lithium cell in the plunger, through the detection device of inside plunger and the needle type pressure release governing valve 5 and the pressure sensor 4 on blowout preventer's the lateral wall mutually support for detect the rising speed of plunger, and adjust its internal pressure.

As shown in fig. 2, there is at least one, and preferably two, of the plurality of valve bodies, one for controlling the vertical passage, i.e., the blowout preventer and the lower ram lift channel; and the other for controlling the level of passage, i.e., the passage between the plurality of valve bodies and the blank pipe 11.

The liquid discharge pipeline is arranged in the middle of the side wall of the valve cavity 9 and is perpendicular to the valve cavity 9, and internal water can be discharged more conveniently through the liquid discharge pipeline.

The valve cavity 9 is provided with the plunger capturing sensor 2, the plunger can enter the lubricator from the lower part inside the valve cavity 9 and gradually rises along the valve cavity 9, when the valve reaches a specified position, the plunger capturing sensor 2 captures the rising plunger, so that the plunger can hover at the specified position and water above the plunger is gradually discharged from the liquid discharge pipeline.

Still be equipped with needle type pressure release sampling valve 4 and electronic pressure sensor 5 on the lubricator lateral wall, the effect that sets up needle type pressure release sampling valve 4 and electronic pressure sensor 5 is, when the plunger rises to the assigned position, uses electronic pressure sensor 5 monitoring real-time pressure, when pressure is too high or low excessively, can use needle type pressure release sampling valve 4 to adjust.

Needle type pressure release sampling valve 4 and electronic pressure sensor 5 lie in same one side, and what the opposite side set up is drainage tube, installs needle type pressure release sampling valve 4 and electronic pressure sensor 5 and can make easy operation with same one side can not produce the conflict with drainage tube.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to FIGS. 1-5; when the device is used for collecting gas, as shown in figure 1, the device is a blowout preventer; when the plunger reaches the blowout preventer under the push of air pressure, the plunger starts to slowly rise, and when the plunger catching sensor 2 catches the plunger which rises from bottom to top, the plunger starts to hover, and during hovering; the needle type pressure relief sampling valve 4 and the electronic pressure sensor 5 are respectively used for adjusting air pressure and monitoring air pressure; if the user finds that the water flow speed of the liquid discharge channel is too high or too low, the regulating valve can be rotated to control the water flow speed. If the user finds that the water flow speed of the liquid discharge channel is too high or too low, the regulating valve can be rotated to control the water flow speed. The output end of the liquid drainage channel is provided with a high-pressure low-torque electric ball valve 1, the high-pressure low-torque electric ball valve 1 is used for controlling water flow at the output end of the liquid drainage pipeline on one hand, and can control a gas production pipeline of a lower underground device on the other hand, so that gas reaches the bottom of a plunger along the gas production pipeline to push the plunger to vertically ascend from the underground device to a blowout preventer, as shown in fig. 2, the high-pressure low-torque electric ball valve is a schematic diagram of an integral gas lift device, the blowout preventer is arranged at the upper end; the downhole device at the lower end is communicated with the blowout preventer at the upper end, one part is fixedly connected through a flange, and the other part is connected with the output end of the liquid drainage channel through an annular pipe 11; in fig. 5, a schematic structural diagram of the plunger is shown, and a temperature and pressure integrated sensor and a high temperature lithium battery are arranged in the plunger, and are mainly used for monitoring pressures of the plunger at different depths and monitoring states of the plunger under different pressures. So that the stability and the safety of the plunger can be ensured when the plunger pushes water to rise from the bottom like a blowout preventer.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (9)

1. An integral gas lift device, characterized in that: comprises a blowout preventer and a downhole device;

the blowout preventer comprises a blowout prevention pipe with a lower port connected with a wellhead, a valve cavity (9) for a plunger to hover is formed in the blowout prevention pipe, a plunger catcher is arranged on the side wall of the valve cavity (9), and an upper port of the valve cavity (9) is connected with an integrally formed blowout prevention cap (3); the valve cavity (9) is also connected with the electric ball valve (1) through a liquid discharge pipeline with two channels;

the underground device comprises a plurality of valve bodies, one ends of the valve bodies are connected with the blowout preventer, and the other ends of the valve bodies are connected with an oil pipe provided with a plunger (10); the valve bodies are connected with an oil outlet pipe (12) through an annular pipe (11), and the annular pipe (11) is also connected with the outlet end of the liquid drainage pipeline.

2. An integrated gas lift apparatus according to claim 1, wherein: the blowout preventer is secured to the downhole device by a flange.

3. An integrated gas lift apparatus according to claim 1, wherein: the plunger (10) is hollow, and a temperature and pressure integrated sensor and a high-temperature lithium battery are arranged in the plunger.

4. An integrated gas lift apparatus according to claim 1, wherein: the liquid drainage pipeline comprises two side flow pipes and a main flow pipe, wherein the side flow pipes (8) and the main flow pipe (7) are arranged in a Y shape, and the side flow pipes (8) and the opening of the valve cavity are located at the same height.

5. An integrated gas lift apparatus according to claim 1 or 4, wherein: the liquid discharge pipeline is perpendicular to the valve cavity (9).

6. An integrated gas lift apparatus according to claim 5, wherein: the electric ball valve (1) is a high-pressure low-torque electric ball valve.

7. An integrated gas lift apparatus according to claim 1, wherein: the lateral wall of the lubricator is provided with a needle-type pressure relief sampling valve (4), and the pressure relief sampling valve (4) is communicated with the valve cavity (9).

8. An integrated gas lift apparatus according to claim 1 or 7, wherein: and the lateral wall of the lubricator is also provided with an electronic pressure sensor (5), and the electronic pressure sensor (5) is communicated with the valve cavity (9).

9. An integrated gas lift apparatus according to claim 8, wherein: the electronic pressure sensor (5) and the needle type pressure relief sampling valve (4) are positioned on the same side.

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