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Method and device for measuring effective porosity of shale rock

A technology of effective porosity and shale, applied in the field of oil and gas exploration and development experiments and testing, can solve problems such as inaccurate measurement of effective porosity

Active Publication Date: 2020-09-11
PETROCHINA CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of this, the present invention provides a method and device for measuring the effective porosity of mud shale rocks, to solve the problem of the effective porosity of mud shale rocks in the testing process. The problem of inaccurate measurement

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  • Method and device for measuring effective porosity of shale rock
  • Method and device for measuring effective porosity of shale rock

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Embodiment Construction

[0067] The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. However, the present invention can be fully understood by those skilled in the art about the parts that are not described in detail.

[0068] In addition, those of ordinary skill in the art should understand that the provided drawings are only for illustrating the objects, features and advantages of the present invention, and the drawings are not actually drawn to scale.

[0069] At the same time, unless the context clearly requires, the words "include", "include" and other similar words in the entire specification and claims should be interpreted as an inclusive meaning rather than an exclusive or exhaustive meaning; that is, "include but not limited to the meaning of ".

[0070] The technical solution of the present in...

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Abstract

The invention discloses a method and a device for measuring effective porosity of shale rock, which relate to the field of oil and gas exploration and development experiment testing. The method for measuring the effective porosity of shale rockcomprises the following steps of obtaining the total volume of the measured shale rock, the skeleton volume of the measured shale rock and the volume of particles and / or dust in the measured shale rock,determining the volume of the moisture absorption medium,correcting the skeleton volume by utilizing the volume of the moisture absorption medium to obtain a skeleton correction volume,and obtaining the effective porosity of the measured shale rock according to the total volume, the skeleton correction volume and the volume of the particles and / or dust. The problem that determination of the effective porosity of shale rock is inaccurate is solved.

Description

technical field [0001] The invention relates to the field of oil and gas exploration and development experiments and tests, in particular to a method and device for measuring the effective porosity of shale rocks. Background technique [0002] Shale plays an important role in the formation of oil and gas accumulation. It can not only become the source layer and cap rock of oil and gas accumulation, but also become the oil reservoir of oil and gas reservoirs. In recent years, the exploration and development of shale oil and gas has become an international energy field. One of the hotspots is that China is rich in shale oil and gas resources, and many shale oil and gas reservoirs have been discovered. Regardless of oil source layer, cap rock, or oil reservoir layer, effective porosity is an important index to describe the characteristics of shale rock formations, and is a parameter of oil and gas generation and storage capacity, and the ability to seal oil and gas reservoirs. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08G01N5/02G01N9/36
CPCG01N15/088G01N5/02G01N9/36
Inventor 曲斌刘世超武晓鹏
Owner PETROCHINA CO LTD
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