Reservoir physical property parameter inversion method, device, equipment and storage medium
By correcting the soft sandstone model and using the L-BFGS optimization algorithm, combined with the Gassmann fluid substitution equation, the problems of large calculation errors and algorithm convergence in weakly consolidated sandstone reservoir properties were solved, achieving more accurate and efficient reservoir property parameter inversion.
CN116027398BActive Publication Date: 2026-03-17CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-10-25
- Publication Date
- 2026-03-17
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Figure CN116027398B_ABST
Abstract
The application provides a reservoir physical property parameter inversion method, device, equipment and storage medium, including: analyzing the basic rock physical characteristics of turbidite sandstone reservoir to obtain the properties of turbidite sandstone in the working area; correcting the soft sandstone model according to the properties of turbidite sandstone in the working area; obtaining the expression of the longitudinal wave velocity, the transverse wave velocity and the density according to the Gassmann fluid replacement equation and the corrected soft sandstone model, and constituting a rock physical model; performing reservoir physical property parameter sensitivity analysis according to the established rock physical model; inverting the reservoir physical property parameters based on the sensitivity analysis result; comparing and analyzing the inversion result with the measured curve to verify the accuracy of the result, so that the inversion result is more stable and the calculation efficiency is improved.
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