A method, device and equipment for determining a water body multiple of an oil reservoir and a storage medium

By constructing a target theoretical curve for reservoir water volume ratio and fitting it using a genetic algorithm, the problem of complex and time-consuming calculations in traditional methods is solved, and a fast and accurate determination of water volume ratio is achieved.

CN122415917APending Publication Date: 2026-07-17CNOOC INT ENERGY SERVICES (BEIJING) LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CNOOC INT ENERGY SERVICES (BEIJING) LTD
Filing Date
2026-04-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are complex and time-consuming in calculating reservoir water ratios, making it difficult to meet the daily needs of water assessment in production and exploitation.

Method used

By acquiring reservoir-related data, we constructed target theoretical curves of dimensionless water intrusion over time under different water volume ratios, and used a genetic algorithm for fitting to determine the water volume ratio of the target reservoir.

Benefits of technology

It reduces human analysis and manual operation errors, shortens the calculation cycle of water volume ratio, and improves the accuracy of quantitative evaluation of water volume ratio.

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Abstract

本发明公开了一种油藏水体倍数确定方法、装置、设备及存储介质。该方法包括：获取待确定水体倍数的目标油藏对应的油藏相关数据；根据所述油藏相关数据，构建有限水位为各个水体倍数的情况下无因次水侵量随时间变化的目标理论曲线，其中，每个水体倍数对应一条独立的目标理论曲线；基于遗传算法，将各个所述目标理论曲线和所述目标油藏的累积水侵量曲线进行拟合处理，并将所述目标理论曲线中与所述累积水侵量曲线最佳拟合对应的水体倍数，确定为所述目标油藏关于有限水体的目标水体倍数。本发明可以减少大量人为分析和手工操作误差，降低水体倍数的计算周期，从而实现对水体倍数的定量评价，提高了确定水体倍数的准确性。
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