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Core constrained electric imaging well logging image processing method and device

A logging image and electrical imaging technology, which is applied in the field of oil and gas exploration, can solve the problems of high cost of optical imaging images, poor continuity of optical imaging images, etc., and achieve the effect of efficient acquisition

Active Publication Date: 2018-07-24
PETROCHINA CO LTD
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Problems solved by technology

[0005] The embodiment of the present application provides a core-constrained electrical imaging logging image processing method and device to solve the technical problems of high cost of determining optical imaging images and poor continuity of determined optical imaging images existing in existing methods , to achieve the technical effect of obtaining optical logging images that can better characterize the overall geological characteristics of the reservoir at low cost and high efficiency

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  • Core constrained electric imaging well logging image processing method and device
  • Core constrained electric imaging well logging image processing method and device
  • Core constrained electric imaging well logging image processing method and device

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[0055] 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.

[0056] Considering that the existing method for obtaining optical imaging images is relatively high in cost due to the need for drilling and coring, and due to the limitation of coring rock samples, the continuity of optical imaging images obtained by existing methods is relatively poor, and for In well sections with developed fractures, ...

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Abstract

The embodiment provides a core constrained electric imaging well logging image processing method and device. The method comprises the following steps: obtaining electric imaging well logging information and mud logging information; determining an electric imaging well logging image resistivity distribution diagram in an object region according to the electric imaging well logging information; establishing the conversion relation between resistivity and rock colors according to the electric imaging well logging image resistivity distribution diagram and the mud logging information; converting the electric imaging well logging image resistivity distribution diagram into a corresponding optical well logging image according to the conversion relation between resistivity and rock colors. As theconversion relation between resistivity and rock colors is firstly established by synthesizing the characteristics of the electric imaging well logging information and logging information, and then the electric imaging well logging image resistivity distribution diagram is converted into the optical well logging image according to the conversion relation to solve an optical imaged image, the technical problems in the prior art that the cost for determining the optical imaged image is high and the determined optical imaged image is poor in continuity are solved.

Description

technical field [0001] The present application relates to the technical field of oil and gas exploration, in particular to a core-constrained electrical imaging logging image processing method and device. Background technique [0002] In the process of oil and gas exploration, it is often necessary to obtain optical imaging images of rock cores in the target area. Among them, the optical imaging map is usually obtained by continuous optical imaging, which is different from the ordinary electrical logging imaging image, and the optical imaging image also carries characteristic information such as the color of the reservoir. Reservoir evaluation is performed on the target area. [0003] At present, in order to obtain optical imaging images, it is usually necessary to perform drilling and coring first, and then use a core scanning system to continuously optically scan and image the cored rock samples to obtain corresponding optical imaging images (ie, core scanning images). H...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/04G06T11/00G06T11/20
CPCG01N27/041G06T11/001G06T11/206
Inventor 李宁冯周武宏亮冯庆付王克文刘鹏
Owner PETROCHINA CO LTD
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