Full-automatic testing method and system of unconventional ultralow core permeability

A technology of core permeability and fully automatic testing, applied in the field of geological exploration, can solve problems such as inability to obtain synchronously, waste time, poor measurement accuracy and timeliness, etc., and achieve the effect of improving experimental efficiency and results

Inactive Publication Date: 2014-06-18
王志高 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned method usually needs to measure many physical quantities, which wastes time and cannot a

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  • Full-automatic testing method and system of unconventional ultralow core permeability
  • Full-automatic testing method and system of unconventional ultralow core permeability
  • Full-automatic testing method and system of unconventional ultralow core permeability

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Embodiment Construction

[0019] A fully automatic testing method and system for unconventional rock core permeability provided by the present invention will be described in detail below with reference to the accompanying drawings and specific examples.

[0020] In the following description, various aspects of the present invention will be described, however, for those skilled in the art, only some or all of the structures of the present invention can be used to implement the present invention. For clarity of explanation, specific numbers, arrangements and sequences are set forth, but it will be apparent that the invention may be practiced without these specific details. In other instances, well-known features have not been described in detail in order not to obscure the invention.

[0021] The method of the present invention takes a typical unsteady state method-pulse decay method as a prototype, and optimizes the calculation method for the attenuation characteristics and pressure changes in the ultra...

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Abstract

The invention provides a full-automatic testing method and system of unconventional ultralow core permeability. The method comprises the following steps of step1, sampling a core, placing in a core clamp holder, and arranging the peripheral environment and pressure; step2, acquiring an initial parameter of a sample, and carting out automatic testing; and step3, acquiring a decay curve and calculating the permeability.

Description

technical field [0001] The invention relates to geological exploration technology, more specifically, to a fully automatic testing method and system for ultra-low permeability of unconventional rock cores. Background technique [0002] As a porous medium, rock contains a large number of microcracks and pores. The flow of various fluids in porous media is the most important process of material transport in rocks, and has a direct impact on the migration and storage of oil and gas in petroleum geology. [0003] Permeability is the most important parameter describing the transport characteristics of rocks. It indicates the ease with which fluid flows through rocks and is a key physical parameter restricting the transport process. For the same type of rock, due to the difference in its formation environment and internal structure, the variation of its permeability can reach several orders of magnitude, while for different types of rocks, the variation range of its permeability ...

Claims

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Application Information

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IPC IPC(8): G01N15/08
Inventor 陈掌星王志高唐俊杰黄海平刘成林李宗星
Owner 王志高
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