Horizontal well permeability calculation method, equipment and medium

By obtaining the relationship between acoustic transit time and porosity of vertical well core samples, and establishing the relationship between porosity and horizontal permeability using conventional logging curves, the problem of cumbersome calculations and limited applicability in existing technologies has been solved, enabling accurate calculation and application of horizontal well permeability.

CN122451232APending Publication Date: 2026-07-24CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Application Number
CN202510105118.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing technologies are cumbersome and have limited applicability when calculating the permeability of horizontal wells, making it difficult to accurately correct the differences between vertical and horizontal wells.

Method used

By obtaining the relationship between sonic transit time and effective porosity from vertical well core sample data, the relationship between porosity and horizontal permeability is established using conventional logging curves. Furthermore, the relationship between horizontal and vertical permeability is established through core analysis, and the vertical permeability is calculated.

Benefits of technology

It enables accurate calculation of horizontal well permeability, applicable to horizontal well development and reservoir simulation, and improves calculation efficiency and accuracy.

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Abstract

The invention relates to the field of oil-gas exploration, in particular to a horizontal well permeability calculation method and device and a medium. The method comprises the steps that the relation between interval transit time and porosity under the horizontal condition is obtained through core sample data of a vertical well; establishing a relationship between the porosity and the permeability in the horizontal direction by utilizing a conventional logging curve; establishing a relationship between the permeability in the horizontal direction and the permeability in the vertical direction through core analysis data; and calculating the vertical permeability by using the steps. Accurate rock physical property parameters can be obtained through the permeability of the horizontal well calculated through the method, and the method has good application prospects in the fields of horizontal well development, oil reservoir simulation and the like.
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