物探与化探Issue(6)：1164-1171,8.DOI:10.11720/wtyht.2014.6.12
基于叠前反演的储层预测技术在陕北黄土塬白云岩气藏的应用
The application of the technology based on pre-stack inversion to reservoir prediction in the dolomite gas reservoir of the Northern Shaanxi loess tableland
摘要
Abstract
In recent years, a large number of dolomite lithologic gas reservoirs have been found in the middle part of Ordovician strata in the Shanbei loess tableland. Nevertheless, the surface conditions of this area are complex, which leads to a poor seismic data imaging accuracy, and the main reservoir Mawu5 Formation of Ordovician is characterized by extensive distribution,thin reservoir,strong hetero⁃geneity and drastic lateral variation in physical properties, which results in more difficulties in seismic prediction. With the 3D high⁃fi⁃delity seismic data of 600 km2 collected in the Shanbei loess tableland in recent years, technologies of FFP analysis and function formu⁃la between the elastic parameters fitted by drilled wells were applied innovatively based on an analysis of rock physical sensitive factors and the strengthening of pre⁃stack inversion. The dolomite probability, gas probability, porosity and gas saturation of Ma55 Formation in the project was calculated. The favorable gas area in the dolomite reservoir of Ma55 in the Su203 well district was described clearly, and then the favorable drilling targets were evaluated and obtained, thus achieving good results.关键词
叠前反演/白云岩储层/FFP分析/含气概率/孔隙度/含气饱和度Key words
pre-stack inversion/dolomite reservoir/FFP analysis/probability of gas/porosity/gas saturation分类
天文与地球科学引用本文复制引用
蔡克汉,张盟勃,高改,刘峰,杜广宏,许磊明..基于叠前反演的储层预测技术在陕北黄土塬白云岩气藏的应用[J].物探与化探,2014,(6):1164-1171,8.基金项目
国家重大专项（2011ZX05044）；中国石油重大专项 （）
