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Method and device for screening adaptive volume fracturing area of tight reservoir

A technology for volume fracturing and tight reservoirs, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of no establishment of procedures and standards, and no effective evaluation of volume fracturing adaptation areas of tight oil reservoirs Methods and other issues

Active Publication Date: 2016-12-07
PETROCHINA CO LTD +1
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Problems solved by technology

However, in the prior art, there is no method for effectively evaluating the volume fracturing adaptation zone of tight oil reservoirs, nor has a clear process and standard been established

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  • Method and device for screening adaptive volume fracturing area of tight reservoir
  • Method and device for screening adaptive volume fracturing area of tight reservoir
  • Method and device for screening adaptive volume fracturing area of tight reservoir

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Embodiment Construction

[0048] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0049] The specific implementation manners of the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0050] refer to figure 1 , the embodiment of the present application provides a method for screening volume fracturing adaptation areas of tight reservoirs, th...

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Abstract

The invention relates to the field of seismic exploration, in particular to a method and device for screening the adaptive volume fracturing area of a tight reservoir. The method includes: acquiring the comprehensive evaluation coefficient of a target reservoir according to the rock physical parameters of the target reservoir; acquiring the rock brittleness index of the target reservoir; performing tectonic stress field simulation on the target reservoir, and acquiring the rock fracture rate of the target reservoir according to the tectonic stress field simulation result; according to the comprehensive evaluation coefficient, the rock brittleness index and the rock fracture rate, using preset evaluation standards to screen the adaptive volume fracturing area of the target reservoir so as to obtain the favorable volume fracturing area of the target reservoir. By the method, the adaptive volume fracturing area of the tight reservoir can be evaluated effectively, the definite evaluation standards of the adaptive volume fracturing area of the tight reservoir are built at the same time according to the comprehensive evaluation coefficient, the rock brittleness index and the rock fracture rate, and a foundation is provided for the development of the tight reservoir.

Description

technical field [0001] The invention relates to the field of seismic exploration, in particular to a method and device for screening areas suitable for volume fracturing of tight reservoirs. Background technique [0002] Volume fracturing forms a complex fracture network system in the reservoir. The initiation and propagation of fractures are not only the tensile failure of fractures, but also complex mechanical behaviors such as shearing, slipping, and dislocation. Volumetric fracturing with large displacement and large liquid volume has become the basic development method for unconventional oil and gas reservoirs such as shale gas and tight oil and gas. With the introduction of volume fracturing technology and its application in oilfields, the geological conditions to ensure the effect of volume fracturing have become a hot issue of concern. [0003] The development effect of tight oil reservoirs depends on horizontal wells and volume fracturing technology, and its develo...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 刘广峰顾岱鸿李帅曹国佳李雪娇白耀星王文举潘少杰石光辉李寿军王瀚
Owner PETROCHINA CO LTD
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