Seismic attributes and integrated prediction of fractured and caved carbonate reservoirs in the Tarim Basin,China  

作　　者：Liu Lifeng Sam Zandong Sun Yang Haijun Han Jianfa Gao Hongliang Jing Bing Zhu Xinghui 

机构地区：[1]Laboratory for Integration of Geology ＆ Geophysics, China University of Petroleum, Beijing 102249, China [2]Research Institute of Exploration ＆ Development, PetroChina Tarim Oilfield Company, Korla 841000, China

出　　处：《Petroleum Science》2011年第4期455-461,共7页石油科学（英文版）

基　　金：co-supported by the National Basic Resarch Program of China (Grant No.2011CB201103);the National Scince and Technology Major Project (Grant No.2011ZX05004003)

摘　　要：The carbonate reservoirs in the Tarim Basin are characterized by anisotropy and strong heterogeneity.Combined with an integrated analysis of data from seismic,geology,and drilling results,a series of attributes which are suitable for fractured and caved carbonate reservoir prediction is discussed,including amplitude,coherence analysis,spectra decomposition,seismic absorption attenuation analysis and impedance inversion.Moreover,3-D optimization of these attributes is achieved by integration of multivariate discriminant analysis and principle component analysis,where the logging data are taken as training samples.Using the optimized results,the spatial distribution and configuration features of the caved reservoirs can be characterized in detail.This technique not only improves the understanding of the spatial distribution of current reservoirs but also provides a significant basis for the discovery and production of carbonate reservoirs in the Tarim Basin.The carbonate reservoirs in the Tarim Basin are characterized by anisotropy and strong heterogeneity.Combined with an integrated analysis of data from seismic,geology,and drilling results,a series of attributes which are suitable for fractured and caved carbonate reservoir prediction is discussed,including amplitude,coherence analysis,spectra decomposition,seismic absorption attenuation analysis and impedance inversion.Moreover,3-D optimization of these attributes is achieved by integration of multivariate discriminant analysis and principle component analysis,where the logging data are taken as training samples.Using the optimized results,the spatial distribution and configuration features of the caved reservoirs can be characterized in detail.This technique not only improves the understanding of the spatial distribution of current reservoirs but also provides a significant basis for the discovery and production of carbonate reservoirs in the Tarim Basin.

关 键 词：Coherence analysis spectra decomposition seismic absorption and attenuation impedance inversion seismic attribute optimization 

分 类 号：P618.130.2[天文地球—矿床学] P618.13[天文地球—地质学]