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Method and device for determining sand body connectivity

A connectivity and sand body technology, applied in the field of sand body connectivity evaluation, can solve problems such as difficulty in evaluating sand body connectivity

Active Publication Date: 2018-05-29
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are many factors that affect the connectivity of channel sand bodies. When multiple influencing factors are considered at the same time, it is difficult to evaluate sand body connectivity efficiently and accurately.

Method used

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  • Method and device for determining sand body connectivity
  • Method and device for determining sand body connectivity
  • Method and device for determining sand body connectivity

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Embodiment Construction

[0041] Embodiments of the present application provide a method and device for determining sand body connectivity.

[0042] 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.

[0043] The embodiment of the present application provides a method for determining sand body connectivity. The method for determining sand body connectivity provides first geological parameter information of a first single ...

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Abstract

An embodiment of the invention discloses a method and a device for determining sand body connectivity. The method provides first geological parameter information of a first single sand body and secondgeological parameter information of a second single sand body in a target work area, and standard indexes corresponding to a plurality of specific connectivity levels. The method comprises the stepsof: determining a membership degree relation of each standard index and the corresponding specific connectivity level respectively; setting a weight matrix corresponding to the standard indexes according to the standard indexes, and determining a target weight value of each standard index in the weight matrix; and determining a target index and a target index parameter value according to the firstgeological parameter information and the second geological parameter information, and determining the sand body connectivity between the first single sand body and the second single sand body according to the target index parameter value, the target weight values of the standard indexes and the membership degree relations. The method and the device provided by the invention can realize efficientand precise determination of the sand body connectivity.

Description

technical field [0001] The application relates to the technical field of sand body connectivity evaluation in reservoir description, in particular to a method and device for determining sand body connectivity. Background technique [0002] Reservoir sand body connectivity generally refers to the way and degree of vertical and lateral contact and connectivity of genetic unit sand bodies, which is an important factor affecting the development of oil and gas fields. In the process of oil and gas field development, the deployment of injection-production well patterns, the selection of development methods, and the potential tapping of remaining oil in the later stage all need to be established on the basis of a certain connectivity analysis of reservoir sand bodies. However, due to the complex distribution and strong heterogeneity of sand bodies in underground reservoirs, especially the sand bodies of fluvial facies, the frequent changes of channels lead to the cutting and overla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/02
CPCG06Q10/06393G06Q50/02
Inventor 刘畅何辉李顺明杜宜静徐守余王珏李佳鸿栗亮陈修
Owner PETROCHINA CO LTD
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