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Method and device for simulating dynamic impact process of perforation of oil and gas well

A simulation method and technology for oil and gas wells, which are used in earth-moving drilling, wellbore/well components, special data processing applications, etc., to save experimental costs, ensure simulation accuracy, and ensure speed and accuracy.

Pending Publication Date: 2021-06-08
YANGTZE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, it is necessary to provide a simulation method for the perforation dynamic impact process of oil and gas wells to solve the problem of how to simulate the perforation dynamic impact process of oil and gas wells reasonably and efficiently

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  • Method and device for simulating dynamic impact process of perforation of oil and gas well
  • Method and device for simulating dynamic impact process of perforation of oil and gas well
  • Method and device for simulating dynamic impact process of perforation of oil and gas well

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Embodiment 1

[0055] The embodiment of the present invention provides a method for simulating the dynamic impact process of oil and gas well perforation, combining figure 1 look, figure 1 It is a schematic flowchart of the simulation method of the perforation dynamic impact process of the oil and gas well provided by the present invention. The simulation method of the perforation dynamic impact process of the oil and gas well includes steps S1 to S6, wherein:

[0056] In step S1, the actual perforation conditions of the downhole perforation system are acquired;

[0057] In step S2, the downhole perforation system is simplified according to actual perforation conditions;

[0058] In step S3, according to the simplified downhole perforation system, model parameters in the perforation process are set, and a three-dimensional calculation model is established;

[0059] In step S4, according to the model parameters, at least one material area of ​​the three-dimensional calculation model is dete...

Embodiment 2

[0105] The embodiment of the present invention provides a simulation device for the dynamic impact process of oil and gas well perforation, combining Figure 11 look, Figure 11 It is a schematic structural diagram of the simulation device for the perforation dynamic impact process of the oil and gas well provided by the present invention. The above simulation device 1100 for the perforation dynamic impact process of the oil and gas well includes:

[0106] An acquisition unit 1101, configured to acquire the actual perforation conditions of the downhole perforation system;

[0107] The processing unit 1102 is used to simplify the downhole perforation system according to the actual perforation conditions; it is also used to set the model parameters in the perforation process and establish a three-dimensional calculation model according to the simplified downhole perforation system; Parameters to determine at least one material area of ​​the three-dimensional calculation model, ...

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Abstract

The invention relates to a method and device for simulating the dynamic impact process of oil and gas well perforation. The method comprises the steps: obtaining the actual perforation working condition of an underground perforation system; according to the actual perforation working condition, simplifying the underground perforation system; according to the simplified underground perforation system, setting model parameters in the perforation process, and establishing a three-dimensional calculation model; according to the model parameters, determining at least one material area of the three-dimensional calculation model, determining a corresponding description algorithm to carry out grid division, and forming a grid calculation model; according to the grid calculation model, selecting different response model equations for dynamic response for at least one material area; and according to the complete simulation model, importing numerical values in the finite element analysis model to carry out simulation operation, and carrying out comprehensive analysis on a simulation operation result. According to the invention, the actual perforation dynamic impact process of the oil and gas well can be presented, and local or overall dynamic data at different underground positions can be conveniently and flexibly acquired.

Description

technical field [0001] The invention relates to the technical field of perforation in the petroleum industry, in particular to a method and device for simulating the dynamic impact process of perforation in oil and gas wells. Background technique [0002] Perforation technology is one of the key steps in the process of oil exploitation, and the field of oil and gas well perforation belongs to multidisciplinary. Perforation impact load is a coupling body of multiple dynamic loads, including cyclic load, step load, random load, etc. The formation process also involves complex superimposed coupling effects. At present, it is very difficult to accurately obtain the theoretical analytical solution of the dynamic load under perforation conditions, and the use of relevant theoretical methods for research has great limitations. Therefore, it is difficult to comprehensively analyze the dynamic impact process of downhole perforation with theoretical methods. At the same time, it is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23E21B43/11
CPCG06F30/23E21B43/11
Inventor 邓桥
Owner YANGTZE UNIVERSITY
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