叠后反演技术在杨税务潜山裂缝孔隙型储层预测中的应用  

The application of post-stack inversion technology to the prediction of fracture and pore reservoir in Yangshuiwu buried hill

作　　者：王亚 易远元[1] 王成泉[3] 王孟华 杨洲鹏 张红文 王盛亮 贾敬 WANG Ya;YI Yuan-Yuan;WANG Cheng-Quan;WANG Meng-Hua;YANG Zhou-Peng;ZHANG Hong-Wen;WANG Sheng-Liang;JIA Jing(School of Geophysics&Oil Resources,Yangtze University,Wuhan 434023,China;Economic Reserach Institute of Huabei Oilfield Company,Renqiu062552,China;Exploration and Development Research Institute of Huabei Oilfield Company,Renqiu 062552,China)

机构地区：[1]长江大学地球物理与石油资源学院,湖北武汉434023 [2]华北油田公司经济技术研究院,河北任丘062552 [3]华北油田公司勘探开发研究院,河北任丘062552

出　　处：《物探与化探》2020年第5期1208-1214,共7页Geophysical and Geochemical Exploration

摘　　要：杨税务潜山奥陶系碳酸盐岩储层广泛分布,储层以裂缝孔隙型为主,但由于其储层埋藏深,地震资料分辨率低,储层声波测井特征不明显,常规声波反演难以实现有效储层的分布预测。在分析已钻井储层测井响应特征的基础上,优选出对有效储层响应敏感的电阻率曲线,并与声波曲线进行曲线重构,得到具有声波背景的电阻率拟声波曲线,然后基于叠后数据的测井约束模型反演技术,实现了有效储层的分布预测,最后在此基础上,利用孔隙度曲线与已钻井的拟声波波阻抗曲线进行基于神经网络模拟技术的储层参数反演,实现研究区孔隙度平面分布预测。实践证明,该预测方法有效实用,在杨税务潜山地区应用效果较好。The Ordovician carbonate reservoirs in Yangshuiwu buried hill are widely distributed,and fractured porous reservoirs are well developed.But due to its deep reservoir,low resolution of seismic data,and unclear acoustic logging characteristics of reservoirs,it is difficult to achieve effective reservoir distribution prediction by conventional acoustic inversion.Based on the analysis of logging response characteristics of drilled reservoirs,the resistivity curves sensitive to effective reservoir response are selected and reconstructed with acoustic curves.The resistivity pseudo-acoustic curves with acoustic background are obtained.Then,the distribution prediction of effective reservoirs is realized based on post-stack logging constrained model inversion technology.Finally,the inversion of reservoir parameters based on neural network simulation technology is carried out by using the porosity curve and the pseudo-acoustic impedance curve drilled to realize the prediction of the planar distribution of porosity in this study area.Practice has proved that the forecasting method is effective and practical,and has a good application effect in the buried hill area of Yangshuiwu.

关 键 词：杨税务潜山 交汇分析 拟声波反演 储层参数反演 

分 类 号：P631.4[天文地球—地质矿产勘探]