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针对在地震资料约束下测井资料外推的具体问题，修改了BP网络的能量函数，增加一项反演目标函数，使之作为一项新的能量约束，从而实现用BP网络自适应地外推测井资料，有机地将BP网络与地震反演结合起来。本文论述了其理论与算法，并给出了资料处理应用实例。对实际资料的测井速度外推结果表明，此方法处理速度快、稳定性好、可信度高，具有较好的应用前景。
Aiming at the specific problems of extrapolation of logging data under seismic data constraints, the energy function of BP network is modified and an inverse objective function is added to make it a new energy constraint, so as to realize adaptive BP network Inferred well data, organic combination of BP network and seismic inversion. This article discusses its theory and algorithm, and gives examples of data processing applications. The extrapolation of logging data of actual data shows that this method has the advantages of fast processing speed, good stability, high reliability and good application prospect.