Adjustable ejector and high-pressure gas well and low-pressure gas well simultaneous recovery gas-liquid mixed transportation system

An adjustable and ejector technology, which is applied in the pipeline system, gas/liquid distribution and storage, mixer, etc., can solve the problems of nozzle influence, gas well pressure reduction, and restricting the scope of application of the process, so as to simplify the gas gathering process, Realize the effect of gathering and transportation process and efficient mixing

Pending Publication Date: 2022-03-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, due to the limitations of the nozzle structure in the jet, the liquid produced by the high-pressure gas well will have a serious impact on the nozzle in the process disclosed in this patent, making it impossible to realize the gas-liquid mixed transportation of the gas well with high gas-liquid ratio
In addition, with the exploitation of gas wells, the pressure of gas wells decreases, and the process disclosed in this patent cannot be adjusted, which limits the scope of application of the process provided by this patent

Method used

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  • Adjustable ejector and high-pressure gas well and low-pressure gas well simultaneous recovery gas-liquid mixed transportation system
  • Adjustable ejector and high-pressure gas well and low-pressure gas well simultaneous recovery gas-liquid mixed transportation system

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Effect test

Embodiment 1

[0059] like figure 1 and figure 2 As shown, the present embodiment proposes an adjustable ejector 8, which mainly includes: a mixing tube 28, one end of which is provided with a mixer outlet 30; a sleeve 27 connected to the other end of the mixing tube 28, the The side of sleeve pipe 27 is provided with low-pressure air inlet 29; Regulator chamber is provided with nozzle 26, adjustment cone 24 and high-pressure air inlet 25, and described nozzle 26 is connected with described sleeve pipe 27, and described adjustment cone 24 is connected with The nozzles 26 are arranged cooperatively for adjusting the pressure of the air flow passing through the nozzles 26 . As shown in the figure, the front end of the adjusting cone 24 is in the shape of a slender cone.

[0060] The adjustable injector 8 also includes: a controller 21, arranged at the end of the adjustable injector 8, including a model calculation module 22 and a stepper motor 23, the model calculation module 22 is electric...

Embodiment 2

[0062] like figure 1 and figure 2 As shown, the present embodiment proposes a high-pressure and low-pressure gas well co-production gas-liquid mixed delivery system, including: an adjustable ejector 8; Gas port 29; high-pressure gas-liquid separator 5 is provided with inlet, gas phase outlet and liquid phase outlet, gas phase outlet is connected to the high pressure air inlet 25 of adjustable ejector 8 through pipeline, and pressure sensor 6 is arranged on gas phase outlet and high pressure On the pipeline between the air inlets 25; the gas-gathering pipeline 3 of the high-pressure gas well, one end is connected to the inlet of the high-pressure gas-liquid separator 5; the gas-liquid mixer 9 is arranged on the downstream of the adjustable injector 8, including gas phase inlet, liquid A phase inlet and a gas-liquid outlet, the gas phase inlet is connected to the gas outlet 30 of the mixer, and the liquid phase inlet is connected to the liquid phase outlet.

[0063] The high-...

Embodiment 3

[0066] In this embodiment, the system of the present invention is adopted to connect the newly developed wells of the gas field in parallel to the gas gathering pipelines of the existing gas wells, so as to realize the simultaneous exploitation of high pressure new wells and low pressure old wells, and transport them to the gas field gas gathering station by means of gas-liquid mixed transportation. After adopting the system of this embodiment, the effect is obvious. The output pressure of the new high-pressure well is 5 MPa, the flow rate is 100,000 m3 / day, the output pressure of the old low-pressure well is 2 MPa, and the gas volume is 10,000 m3 / day. Simultaneous production of high and low pressure gas wells can be realized , the production of high-pressure gas wells does not affect the production of low-pressure gas wells.

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Abstract

The invention provides an adjustable ejector and a high-pressure gas well and low-pressure gas well simultaneous recovery gas-liquid mixed transportation system. The system comprises: an adjustable ejector; one end of the low-pressure gas well gas collecting pipeline is connected to the low-pressure gas inlet; the high-pressure gas-liquid separator is provided with an inlet, a gas phase outlet and a liquid phase outlet, the gas phase outlet is connected to the high-pressure gas inlet through a pipeline, and the pressure sensor is arranged on the pipeline between the gas phase outlet and the high-pressure gas inlet; and one end of the high-pressure gas well gas collecting pipeline is connected to an inlet of the high-pressure gas-liquid separator. According to the invention, the high-pressure gas-liquid separator and the adjustable ejector with the controller are adopted to realize gas-liquid mixed transportation and simultaneous exploitation of high and low gas wells, and can automatically adapt to gas well production pressure change, so that the investment of a new well ground gas collection pipeline in rolling development of a gas field can be obviously reduced, and the gas collection process of the new well is simplified.

Description

technical field [0001] The invention belongs to the application field of natural gas well exploitation, and relates to a high-pressure and low-pressure gas well production gas-liquid mixed transmission process, in particular to an adjustable injection supercharger, and high and low pressure gas wells utilizing the adjustable injection supercharger Simultaneous gas-liquid mixed transportation system. Background technique [0002] The surface gathering and transportation process of natural gas fields generally adopts the process flow of wellhead-valve group-gathering station. The valve group is generally built together with the gas gathering station. The wells under the control of the valve group are connected in series. group, the valve group acts as the center of the well within the area radius. The gas gathering system is mainly composed of a single well, a gas gathering pipeline and a gas gathering station. [0003] With the rolling development of gas fields, newly devel...

Claims

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Application Information

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IPC IPC(8): F04F5/16F04F5/48E21B43/34F17D1/00B01F25/20
CPCF04F5/16F04F5/48E21B43/34F17D1/005
Inventor 李奇徐孝轩李长河季永强化铮路恒王荣娟张园园
Owner CHINA PETROLEUM & CHEM CORP
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