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Core physical property analysis method and equipment for carbonate reservoir

A carbonate reservoir and reservoir technology, applied in the field of natural gas exploration, can solve problems affecting the accuracy of physical property analysis of carbonate reservoirs, achieve the effect of refining the classification method and improving accuracy

Pending Publication Date: 2022-04-05
PETROCHINA CO LTD
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Problems solved by technology

[0003] The current core physical property analysis technology does not fully consider the heterogeneity characteristics of carbonate reservoirs, which affects the accuracy of physical property analysis of carbonate rock reservoirs

Method used

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  • Core physical property analysis method and equipment for carbonate reservoir
  • Core physical property analysis method and equipment for carbonate reservoir
  • Core physical property analysis method and equipment for carbonate reservoir

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Embodiment Construction

[0062] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0063] The heterogeneity of carbonate-salt rock reservoir has an important influence on the comprehensive and accurate evaluation of the physical properties of the reservoir. The formation of carbonate reservoirs is mainly controlled by reef-shoal facies deposition and dissolution. Reservoirs have various types of storage space, with intergranular pores, intergranular dissolution pores, intragranular pores and other types of pores and caves of different scales developed. The non-uniform distribution of caves and pores of different scales or the non-uniform distribution of combinations with pores causes the heterogeneity of the reservoir and controls the different characteristics of the heterogeneity.

[0064] At present, the phy...

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Abstract

The invention discloses a core physical property analysis method and equipment for a carbonate reservoir, and belongs to the field of natural gas exploration. The carbonate reservoir is divided into multiple types with different storage space sizes according to the sizes of the storage spaces (holes) in the carbonate reservoir, and each type is further divided into multiple small types with different heterogeneity change degrees according to the heterogeneity change degrees of hole distribution in the carbonate reservoir. And the classification mode of the carbonate reservoir is more refined. On the basis, physical property analysis is performed on each small type according to the core hole development degree, so that the heterogeneity characteristic of various types of carbonate reservoirs is fully considered, and the accuracy of a physical property analysis result is improved.

Description

technical field [0001] The application relates to the field of natural gas exploration, in particular to a method and equipment for analyzing the core physical properties of carbonate rock reservoirs. Background technique [0002] The formation of carbonate reservoirs is mainly controlled by reef-shoal facies deposition and dissolution. There are many types of storage spaces in carbonate reservoirs. There are many types of pores such as intergranular pores, intergranular dissolved pores, and intragranular pores and dissolved caves of different scales, which are referred to as pores and caves. The heterogeneity of carbonate reservoirs is caused by the non-uniform distribution of pores of different scales or the combination of pores, which makes the heterogeneity of different carbonate reservoirs have different characteristics. [0003] The current core physical property analysis technology does not fully consider the heterogeneity characteristics of carbonate reservoirs, whi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V9/00
Inventor 夏茂龙杨雨文龙罗冰王文之罗文军陈文曾乙洋
Owner PETROCHINA CO LTD