【摘要】 通过修正系统误差改进了传统的BP算法,改进后的BP算法具有收敛速度快的特点。在此基础上,利用多种测井解释数据及岩心分析资料作为网络训练样本,通过网络的训练、学习,建立了BP网络孔隙度模型,并利用该模型预测该地区新井的孔隙度值,实验证明用该模型进行孔隙度预测是可行的。更多还原

【Abstract】 BP algorithm was improved by fixing the system error,and the improved algorithm of BP has a fast convergence speed.Based on the improved BP algorithm,the porosity model is established after the network training by using a variety of logging and core analysis data as training samples.The porosity model is used to forecast the porosity of new log data in this area,and the results show that this porosity model is feasible.更多还原