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Dense sand rock conductivity analysis method and system

A technology for tight sandstone and analysis methods, which is applied in the fields of permeability/surface area analysis, suspension and porous material analysis, measurement devices, etc. Conductivity analysis of sandstone, the effect of solving the shortage of displacement

Active Publication Date: 2017-10-27
PETROCHINA CO LTD
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Problems solved by technology

However, this kind of numerical simulation method has the problems of complex process and slow calculation process, which is not conducive to the application and promotion of the method.

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  • Dense sand rock conductivity analysis method and system
  • Dense sand rock conductivity analysis method and system
  • Dense sand rock conductivity analysis method and system

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Embodiment Construction

[0070] The embodiment of the present application provides a tight sandstone conductivity analysis method and system.

[0071] 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.

[0072] figure 1 It is a flowchart of an embodiment of the tight sandstone conductivity analysis method of the present application. refer to figure 1 , the tight sandstone conductivity analysis method may include the fo...

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Abstract

The embodiment of the invention discloses a dense sand rock conductivity analysis method and system. The method comprises the following steps: performing rock electricity testing on a rock core sample, and acquiring physical parameters and conductive parameters of the rock core sample; acquiring a gray scanning image of the rock core sample, and establishing a three-dimensional digital rock core according to the gray scanning image; according to the three-dimensional digital rock core, acquiring aperture distribution information of the rock core sample; according to the aperture distribution information, reestablishing a trapezoid pore structure; and performing oil-driving simulation experiments with different displacement forces, and confirming water saturation and pore resistance corresponding to different displacement forces. By adopting the dense sand rock conductivity analysis method and system disclosed by the embodiment of the invention, rapid and accurate dense sand rock conductivity analysis can be achieved.

Description

technical field [0001] This application relates to the technical field of unconventional oil and gas well logging, in particular to a tight sandstone conductivity analysis method and system. Background technique [0002] In recent years, the output of conventional oil and gas resources has declined year by year, and the exploration and development of unconventional oil and gas energy has attracted great attention from the energy circles at home and abroad. Tight oil is an important unconventional oil resource, which is the main driving force for the increase of my country's oil reserves. [0003] Saturation is an important parameter to evaluate the resource potential of tight oil and gas reservoirs. This process usually needs to be completed by combining resistivity curves, saturation models and rock-electric experiments. A large number of studies have shown that tight oil reservoirs have complex pore structures and high oil saturation. Since the complex pore structure bri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
Inventor 胡胜福周灿灿李霞李潮流刘淑文刘忠华袁超徐红军
Owner PETROCHINA CO LTD
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