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A Diversified Construction Method of Microseismic Fracturing Fracture Model

A technology of fracture model and construction method, used in seismology, seismic signal processing, geophysical measurement, etc.

Active Publication Date: 2020-01-10
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

At present, there is no related technical research on the application of TetGen algorithm to the construction of microseismic fracturing fracture model

Method used

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  • A Diversified Construction Method of Microseismic Fracturing Fracture Model
  • A Diversified Construction Method of Microseismic Fracturing Fracture Model
  • A Diversified Construction Method of Microseismic Fracturing Fracture Model

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with accompanying drawing.

[0034] The diversified construction method of microseismic fracturing fracture model is mainly divided into the following steps:

[0035] Such as image 3 As shown, the original data of microseismic detection is first read in, and the original data of microseismic monitoring are obtained from the signal acquisition vehicle. After data preprocessing, noise suppression, source scanning, weak signal extraction, microseismic event picking and source location inversion, The spherical data of microseismic events with three-dimensional space coordinates, occurrence time and energy value are obtained.

[0036] Then carry out visual display and analysis: use the OpenGL development library to realize the 3D visual display system. The observation system, fracturing well and fracturing event sphere in microseismic monitoring are displayed in a 3D scene. Using visual analysis technol...

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Abstract

The invention relates to a diversified construction method for a microseism fracture model. The method includes the following steps: processing microseism data; conducting visualization display and analysis on the microseism data; screening microseism events; selecting a microseism fracture model creating way; and constructing an enveloping solid through a TetGen algorithm. Through a manual and automatic combined construction method, diversified analysis means can be provided to users, a precise fracture model is constructed to provide an effective analysis means for following fracture volumecalculation and fracture effect evaluation, and technical support is provided for development of unconventional oil and gas.

Description

technical field [0001] The invention is a diversified construction method of a microseismic fracturing fracture model applied to the microseismic monitoring of unconventional oil and gas such as shale gas. Background technique [0002] Microseismic monitoring technology has now become a commonly used monitoring technology in the development of oil and gas fields in tight reservoirs. Through the processing of detection signals, the analysis of fracture changes in the process of fracturing and oil and gas development can be used to dynamically evaluate the effect of reservoir stimulation. Provide technical support for unconventional oil and gas development. [0003] Visual analysis technology is the most intuitive means of microseismic effect analysis. Users can build fracturing fracture models through effective three-dimensional numerical simulation algorithms based on the positioning results of microseismic event spheres, combined with the growth and development process of f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28
CPCG01V1/282
Inventor 汤东阳庞锐赵德明王海波
Owner CHINA PETROLEUM & CHEM CORP
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