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Method and device for calculating pore volume compression coefficient of rock

A technology of compressibility and pore volume, applied in the field of petroleum exploration and development, to achieve the effect of reducing exploration and development costs, reducing difficulty and cost, and being accurate and easy to achieve

Active Publication Date: 2021-10-22
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] This application provides a method and device for calculating the compressibility coefficient of rock pore volume, which solves the problem of calculating the compressibility coefficient of rock pore volume of resource reservoirs under the condition of different effective stress changes

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  • Method and device for calculating pore volume compression coefficient of rock
  • Method and device for calculating pore volume compression coefficient of rock
  • Method and device for calculating pore volume compression coefficient of rock

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Embodiment Construction

[0053] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0054] First, the nouns involved in this application are explained:

[0055] Rock porosity: refers to the ratio of the pore volume of the rock to the surface volume of the rock. The pore of the rock refers to the cavity in the rock that is not filled by solid matter. The porosity is an important indicator for calculating reserves and evaluating reservoir characteristics. , the rock poro...

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Abstract

According to the method and device for calculating the pore volume compression coefficient of the rock. The basic parameters of the resource reservoir are counted, the basic parameters are used for calculating the pore volume compression coefficient of the rock, the basic parameters of the resource reservoir are easy to obtain, the calculation difficulty of the pore volume compression coefficient of the rock is reduced, and the method can be widely applied. Besides, when the pore volume compressibility coefficient of the rock is calculated, the change of the effective stress is considered, and the pore volume compressibility coefficient of the rock under the zero effective stress is calculated, so that the pore volume compressibility coefficients under different effective stresses are obtained according to different effective stresses and the pore volume compressibility coefficient of the rock under the zero effective stress; the method is suitable for any reservoir stratum, and the application is wider. The rock pore volume compression coefficients of different reservoirs are calculated through a unified method, so that resource exploration such as reservoir elastic energy evaluation, oil and gas reservoir reserve calculation and pressure instability analysis is more accurate and easy to implement, and the exploration and development cost is reduced.

Description

technical field [0001] The invention relates to petroleum exploration and development technology, in particular to a method and device for calculating the compressibility coefficient of rock pore volume. Background technique [0002] Petroleum exploration refers to the process of using various exploration methods to understand the geological conditions of the underground, and to find out the conditions and output capabilities of oil and gas layers in order to find and identify oil and gas resources. Drilling method is an important method that must be adopted in oil and gas exploration. This method is used in the process of investigating and discovering oil and gas reservoirs to the exploitation of oil and gas reservoirs. Reservoir rock pore compressibility, as an important parameter in reservoir engineering, is often used in reservoir elastic energy evaluation, reservoir reserve calculation and pressure instability analysis. [0003] At present, there are mainly two methods...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/15G01V9/00
CPCG06F17/15G01V9/00Y02A10/40
Inventor 石军太杨博李星浩贾焰然张龙龙李文斌王田多奕
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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