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A gas well intelligent drainage and gas recovery device

An intelligent drainage and gas production technology, applied in the fields of fluid production, earthwork drilling, wellbore/well components, etc., can solve the problems of large bottom-hole liquid accumulation and low liquid production, and achieve more elimination of bottom-hole liquid accumulation. , prolong the production time and improve the effect of gas production

Active Publication Date: 2017-01-18
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the invention is to overcome the problems of low gas production, low liquid production, large bottom-hole liquid accumulation and time-consuming production in existing oil and gas fields

Method used

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  • A gas well intelligent drainage and gas recovery device
  • A gas well intelligent drainage and gas recovery device
  • A gas well intelligent drainage and gas recovery device

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Experimental program
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Effect test

Embodiment 1

[0028] In order to overcome the problems of gas production, low fluid production, large bottomhole fluid accumulation and time-consuming production in existing oil and gas fields, this embodiment provides a method such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 with Image 6 The gas well intelligent drainage and gas recovery device shown includes a pressure transmitter 1 and a flowmeter 5 arranged on the pipeline connecting the wellhead and the wellbore, and a control box 3 electrically connected to the pressure transmitter 1 and the flowmeter 5, and also includes The control valve 2 and the electric control needle valve 4 arranged on the pipeline where the flowmeter 5 communicates with the wellbore, and the downhole controller 6 arranged in the wellbore, the control valve 2 and the electric control needle valve 4 are electrically connected to the control box 3 respectively. connected, the downhole controller 6 is provided with a throttling hole, and the th...

Embodiment 2

[0036] This embodiment provides an intelligent drainage and gas production device for gas wells, including a pressure transmitter 1 and a flowmeter 5 arranged on the pipeline connecting the wellhead and the wellbore, and a control box 3 electrically connected to the pressure transmitter 1 and the flowmeter 5 , also includes the control valve 2 and the electric control needle valve 4 arranged on the pipeline connecting the flowmeter 5 and the wellbore, and the downhole controller 6 arranged in the wellbore, the control valve 2 and the electric control needle valve 4 are respectively connected with the control The box 3 is electrically connected, the downhole controller 6 is provided with a throttle hole, the throttle hole of the downhole controller 6 is horizontally provided with a control rod 16, and the control rod 16 is provided with a longitudinal through hole 25 One end of the orifice of the downhole controller 6 is provided with a pressure introduction chamber 21, and the ...

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Abstract

The invention belongs to the technical field of oil-gas field development and particularly provides an intelligent water drainage and gas production device for a gas well. The intelligent water drainage and gas production device for the gas well comprises a pressure transmitter, a flow meter, a control cabinet, a control valve, an electronic control needle valve and a downhole controller, wherein the control cabinet is electrically connected with the pressure transmitter and the flow meter, the control valve and the electronic control needle valve are arranged on a pipeline communicated with a shaft and are electrically connected with the control cabinet, and the downhole controller is arranged in the shaft. The downhole controller is provided with a throttling hole, a control rod is transversely arranged at the throttling hole, the control rod is provided with a longitudinally through hole, a pressure suction cavity is formed in one end of the throttling hole, a clamp spring and a pressure suction hole are arranged at the other end of the throttling hole, and a limiting pin is arranged at one end of the control rod. The intelligent water drainage and gas production device for the gas well is suitable for working conditions of stripper wells of ultra-low permeability gas fields; in the initial production stage of the gas well, production can be carried out at the yield higher than fluid-carrying capacity; in the later production stage, continuous production of the stripper wells can be achieved; the gas production amount and the liquid production amount can be improved, the frequency for well patrolling is reduced, the maintenance cost is lowered, more accumulated liquid in the bottom of the well can be drained, and the production time is prolonged.

Description

technical field [0001] The invention belongs to the technical field of oil and gas field development, and in particular relates to an intelligent drainage and gas recovery device for gas wells, which is suitable for gas wells with low gas production and large liquid production. Background technique [0002] With the development of gas fields year by year, the production decline of gas wells is large, and the proportion of wellbore liquid accumulation wells is high. It is difficult to stabilize production and management of gas fields. Gas well accumulation has become an important factor affecting the production capacity of gas fields. [0003] At present, mechanical methods and physical and chemical methods are mainly used to achieve drainage and gas recovery for liquid accumulation wells. These two processes are relatively mature, and they are also the most used process methods on site. However, any method has certain requirements on the production conditions of the gas wel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/00
CPCE21B43/00
Inventor 程世东于志刚张春涛操红梅于世春黄天虎徐梅赞赵晓龙邱奇邱亮于洋郭靖
Owner PETROCHINA CO LTD