曲线重构技术在迈陈凹陷东部地区储层精细预测中的应用  

Application of curve reconstruction technology in fine reservoir prediction in east area of Maichen sag

作　　者：胡斌[1] 陈忠培[1] 郭新安[1] 黄志度[1] 

机构地区：[1]中国石化江苏油田分公司物探技术研究院,江苏南京210046

出　　处：《石油地质与工程》2015年第4期70-72,104,156,共5页Petroleum Geology and Engineering

摘　　要：迈陈凹陷东部地区涠洲组目的层段发育砂泥岩薄互层,储层与围岩的波阻抗差异较小,常规波阻抗反演岩性识别效果较差,难以达到储层精细预测的目标。通过对储层测井响应特征进行分析研究,选取对砂、泥岩区分效果较好的伽马曲线进行储层特征曲线重构,运用重构的声波曲线进行地震反演,提高了反演剖面的分辨率及储层预测的精度,取得了较好的砂体预测效果。The target layer of Weizhou formation in east area of Maichen sag developed thin inter-bedded sand mudstone reservoirs.The impedance difference between reservoirs and surrounding rock is smaller,and the lithologic recognition effect by the conventional wave impedance inversion is poorer and it is difficult to achieve the purpose of fine reservoir prediction.Through analytical analysis of reservoir logging response characteristics,gamma curves with better distinguish effect on sand- mudstone have been selected to carry out curve reconstruction. With reconstructed acoustic curve,seismic inversion has been carried out.The resolution of inversion profile and the precision of reservoir prediction has been improved,and therefore,good sand body prediction results have been achieved.

关 键 词：迈陈凹陷 曲线重构 伽马曲线 波阻抗反演 合成地震记录 储层预测 

分 类 号：P618.13[天文地球—矿床学]