声阻抗偏微分方程约束反演方法

本文论述了声阻抗偏微分方程约束反演方法。它是基于双曲型特征理论在时空域进行波动方程反演的，对声阻抗分布和子波类型没有严格限制，同时引入具有较高精度和高分辨率的测井数据作为约束条件，提高了地震资料微分方程反演的稳定性和可靠性，获得了稳定解。文中给出 若干模型和实际资料算例结果表明，该方法是一种速度快、精度及分率高的数值算法，具有较好的实用性。

Acoustic impedance restrained-inversion by partial differential equation

Acoustic impedace restrained-inversion by partial differential equation is recommended here. The inversion, based on hyperbolic characteristic theory, is made in time-space domain. It needs no strict restriction on both acoustic impedance distribution and waveIet types,and uses accurate high-resolution log data as restriction condition,so that the stability and reliability of defferential equation inversion are improved to result in a stable solution. Modeling and real computation results show that this is a fast and practical numerical algorithm which brings good accuracy and high resolution.