非线性灵敏度分析存储层优化解释中的应用

NONLINEAR SENSITIVITY ANALYSIS FOR RESERVOIR OPTIMUM INTERPRETATION

目前油田应用最优化方法来广义反演储层物性参数,常出现当设计变量、适时约束发生摄动时,导致优化结果不稳定,从而使解释结果不令人满意.该文针对这些问题,应用非线性灵敏度分析方法,为储层优化解释模型设计了一个低灵敏度数学模型.由此使其最大限度的克服了干挠.对比处理了几口井资料,取得了满意效果.

At present, the optimum method is the method used by oil-fields to reflect the physical parameters of the reservoir. But when the design variates and the suitable constraints happen to perturb, unstable optimum solution and unsatisfactory reservoir interpretation result. In this paper, to solve the problem, the nonlinear sensitivity theory is applied to design a low sensitivity model for the reservoir optimum interpretation. This model reduces interference greatly. Compared with the practical data drawn from a few wells, the results from the computation are satisfactory.