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Method and device for determining critical erosion rate and flow rate of gas well

A rate and gas well technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of conservative value and poor economy, and achieve the effects of saving costs, optimizing production capacity, and improving operating efficiency

Inactive Publication Date: 2016-11-16
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, based on the analysis and practical experience of on-site technicians and industry experts, it is concluded that the corresponding critical erosion flow rate is determined by selecting the critical erosion coefficient C, which is too conservative and economical.

Method used

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  • Method and device for determining critical erosion rate and flow rate of gas well
  • Method and device for determining critical erosion rate and flow rate of gas well
  • Method and device for determining critical erosion rate and flow rate of gas well

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Embodiment Construction

[0053] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, those skilled in the art Modifications to various equivalent forms of the present invention fall within the scope defined by the appended claims of the present application.

[0054] The method and device for determining the critical erosion rate and flow rate of a gas well described in this application will be described in detail below in conjunction with the accompanying drawings. figure 1 It is a flowchart of a method for determining the critical erosion flow rate of a gas well provided by an embodiment of the present application. Although the present application provides the method operation steps or device structure as...

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Abstract

The invention discloses a method and device for determining the critical erosion rate and flow rate of a gas well. The method includes: determining the experimental parameters corresponding to the erosion experiment according to the obtained basic parameters of the target gas well; under the conditions of the experimental parameters, Perform an erosion experiment on the experimental sample at the initial experimental erosion flow rate, and obtain the weight change parameter of the experimental sample, and determine the target gas well based on a preset algorithm according to the weight change parameter and the erosion area of ​​the experimental sample The initial erosion rate; determine the initial critical erosion rate based on preset rules, and judge whether the initial erosion rate is the same or close to the initial critical erosion rate; if the same or close, the initial The erosion rate is taken as the final critical erosion rate of the target gas well. The purpose of the present invention is to provide a method for determining the critical erosion rate and flow rate of a gas well, which can determine a reasonable critical erosion rate and flow rate of a gas well.

Description

technical field [0001] The invention relates to the field of gas production engineering, in particular to a method and device for determining the critical erosion rate and flow rate of a gas well. Background technique [0002] At present, when designing the size of gas well strings, firstly, the requirements of gas well production ratio must be met, and secondly, factors such as pressure loss along the way, critical liquid-carrying flow rate and critical erosion flow rate must be considered comprehensively. Among them, the critical erosion flow rate is an important factor limiting the size of production strings and injection-production strings. In order to meet the use requirements of the gas well string, on the one hand, the size of the gas well string should not be smaller than the string size corresponding to the critical erosion flow rate, so as to ensure the safety of the gas well string and avoid accidents of string failure caused by erosion; On the other hand, gas we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
CPCG01N3/567
Inventor 王云
Owner PETROCHINA CO LTD
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