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Gas well intelligent adjustment production method and device

A technology of intelligent adjustment and production method, which is applied in the direction of earthwork drilling, wellbore/well components, production fluid, etc.

Active Publication Date: 2018-03-09
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are certain limitations and shortcomings in the above two methods of water drainage and gas recovery.

Method used

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  • Gas well intelligent adjustment production method and device
  • Gas well intelligent adjustment production method and device
  • Gas well intelligent adjustment production method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: as Figures 1 to 5 as shown,

[0027] A gas well intelligent adjustment production method solves the problem of excessive liquid accumulation or water production in the wellbore and near the bottom of the gas well, and can better and more eliminate the bottom liquid accumulation, reduce the cost of drainage and gas recovery, and prolong the production time of the gas well.

[0028] An intelligent adjustment production system for a gas well includes a surface control system and an underground execution system. Among them, the surface control system includes pressure sensors, control valves, control boxes, electric control needle valves, flow meters, etc.; the downhole execution system is mainly downhole controllers.

[0029] The control box 3 is connected to the pressure sensor 1, the control valve 2, the electric control needle valve 4 and the flow meter 5, and the downhole controller 6 is installed in the downhole channel at the wellhead;

[0030] One s...

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Abstract

The invention provides a gas well intelligently adjusted production method and device. A gas well intelligently adjusted production method and device belong to the technical field of oilfield digitization. When the oil pressure is higher than a certain pressure value P1, the ability of the gas to carry liquid is in a strong state, the control valve is in a closed flow state, and the downhole controller is at the maximum opening at this time; when the oil pressure is lower than a certain pressure value P2, The ability of gas to carry liquid becomes poor, or it cannot carry liquid. At this time, control the opening of the orifice of the downhole controller and increase the gas flow rate to enhance the ability to carry liquid; for this reason, read the oil pressure and casing pressure of the pressure gauge respectively , combined with the gas production, calculate a reasonable valve opening, and send instructions to the control valve through the control box to make it reach a suitable opening. The control rod of the downhole controller moves to the left until it is balanced because the force on the left side is less than that on the right side. , so that the opening of the orifice is between the maximum opening and the minimum opening, so that the gas flow rate reaches the maximum and the goal of carrying the most liquid is achieved.

Description

technical field [0001] The invention relates to the technical field of oilfield digitalization, in particular to an intelligently adjusted production method and device for a gas well. Background technique [0002] At present, the number of liquid-loaded gas wells accounts for about 50% of the total number of gas wells in the oilfield area. Judging from the proportion of gas wells, the liquid-loaded wells have been distributed in a large area, and the liquid-loaded gas wells have become an important factor affecting productivity. [0003] For liquid accumulation wells, mechanical and physical and chemical methods are mainly used to achieve drainage and gas recovery. 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 well, and must be reasonably selected according to the geological characteristics of the gas reservoir, the production dynamic ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/00E21B43/12
Inventor 程世东于志刚杨仓海李永长赵晓龙操红梅徐梅赞张春涛黄天虎邱亮邱奇李珍刘峰
Owner PETROCHINA CO LTD
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