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Metamorphic rock reservoir permeability calculation method and device and computer storage medium

A calculation method and permeability technology, applied in the field of oil and gas exploration, can solve the problems of low calculation accuracy and incompatibility with the characteristics of tight and metamorphic fractured reservoirs, and achieve the effects of high calculation accuracy, enhanced correlation, and improved calculation accuracy.

Active Publication Date: 2020-04-03
YANGTZE UNIVERSITY
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, provide a method, device and computer storage medium for calculating the permeability of metamorphic rock reservoirs, and solve the problem of low calculation accuracy of the permeability of fractured reservoirs of tight metamorphic rocks in the prior art, which does not meet the requirement of tight metamorphism. Technical Problems of Fractured Reservoir Properties

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  • Metamorphic rock reservoir permeability calculation method and device and computer storage medium
  • Metamorphic rock reservoir permeability calculation method and device and computer storage medium
  • Metamorphic rock reservoir permeability calculation method and device and computer storage medium

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Embodiment 1

[0022] Such as figure 1 As shown, Embodiment 1 of the present invention provides a method for calculating the permeability of a metamorphic rock reservoir, comprising the following steps:

[0023] S1. Obtain the conventional logging data and core analysis data of the reservoir, and calculate the relative value of the formation resistivity at the depth point with the core analysis data;

[0024] S2. Dividing the relative values ​​of formation resistivity at each point into different distribution intervals;

[0025] S3. In each distribution interval of the relative value of the formation resistivity, respectively fit the core porosity value and the core analysis permeability value, and establish a permeability logging interpretation model;

[0026] S4, using conventional logging data to obtain the porosity of the reservoir;

[0027] S5. Calculate the permeability of the reservoir according to the permeability logging interpretation model and the porosity of the reservoir.

[...

Embodiment 2

[0056] Embodiment 2 of the present invention provides a metamorphic rock reservoir permeability calculation device, including a processor and a memory, and a computer program is stored in the memory, and when the computer program is executed by the processor, the metamorphism provided by any of the above embodiments is realized. Calculation method of rock reservoir permeability.

[0057] The metamorphic rock reservoir permeability calculation device provided by the present invention is used to realize the metamorphic rock reservoir permeability calculation method. Therefore, the technical effect of the above metamorphic rock reservoir permeability calculation method possesses the metamorphic rock reservoir permeability calculation device. It is also available and will not be repeated here.

Embodiment 3

[0059] Embodiment 3 of the present invention provides a computer storage medium on which a computer program is stored. When the computer program is executed by a processor, the method for calculating the permeability of a metamorphic rock reservoir provided in any of the above embodiments is realized.

[0060] The computer storage medium provided by the present invention is used to realize the method for calculating the permeability of metamorphic rock reservoirs. Therefore, the technical effects of the above-mentioned method for calculating the permeability of metamorphic rock reservoirs are also possessed by computer storage media, and will not be repeated here.

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Abstract

The invention relates to the technical field of oil and gas exploration, and discloses a metamorphic rock reservoir permeability calculation method, which comprises the following steps: S1, obtainingconventional logging data and rock core analysis data of a reservoir, and solving a stratum resistivity relative value at a depth point with the rock core analysis data; S2, dividing the stratum resistivity relative value of each point into different distribution intervals; S3, respectively fitting the core porosity value and the core analysis permeability value in each distribution interval of the stratum resistivity relative value, and establishing a permeability logging interpretation model; S4, acquiring the porosity of the reservoir by using conventional logging information; and S5, calculating the permeability of the reservoir according to the permeability logging interpretation model, the porosity of the reservoir and the stratum resistivity relative value. Aiming at the characteristics of the metamorphic rock reservoir, the metamorphic rock reservoir permeability calculation method can achieve the technical effects of high calculation precision and low cost.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploration, in particular to a method, device and computer storage medium for calculating the permeability of metamorphic rock reservoirs. Background technique [0002] With the deepening of exploration and development of domestic oil and gas fields, metamorphic rock reservoirs have gradually come into people's field of vision. Compared with traditional sedimentary rock reservoirs, metamorphic rock reservoirs have the characteristics of complex lithology, strong heterogeneity, tight reservoirs, and low porosity and permeability. At present, the evaluation of metamorphic rock reservoirs using conventional logging data is basically in the qualitative and semi-quantitative evaluation stage, with poor adaptability, low accuracy of interpretation parameters, and large errors in evaluation results. Therefore, it is urgent to establish a set of permeability calculation methods with strong adaptabil...

Claims

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Application Information

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IPC IPC(8): G06F30/20E21B49/00G06F111/10
CPCE21B49/00Y02A90/30
Inventor 高齐明罗进雄王婧慈朱林奇周雪晴
Owner YANGTZE UNIVERSITY
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