涪陵地区茅口组热液白云岩储层预测研究  

Prediction of hydrothermal dolomite reservoirs in Maokou formation in Fuling area

作　　者：曾臻[1] 屈大鹏[1] 李文成[1] 肖伟[1] 李铮 ZENG Zhen;QU Dapeng;LI Wencheng;XIAO Wei;LI Zheng(Sinopec Exploration Company,Chengdu Sichuan,610041,China;Science and Technology Department,Henan Oilfield Company,SINOPEC,Nanyang,Henan 473132,China)

机构地区：[1]中国石化勘探分公司,四川成都610041 [2]中国石化河南油田分公司科技处,河南南阳473132

出　　处：《石油地质与工程》2019年第6期38-42,共5页Petroleum Geology and Engineering

摘　　要：近年来,川东南涪陵地区茅口组热液白云岩储层获得勘探突破,表明其巨大的勘探潜力,但该区储层薄、非均质性强,地震识别预测刻画难度大。基于热液白云岩储层发育主控因素认识,首先开展了以基底断裂精细刻画、生屑滩相有利微相识别等为核心的宏观描述;其次应用储层测井敏感参数优选及降维融合等定量预测技术,实现"断控"及"相控"基础上的热液白云岩储层精细描述。结果表明,热液白云岩储层由于其特殊的成因及控制因素,主要发育于基底断裂附近的生屑滩有利沉积微相,远离基底断裂有逐步减薄的趋势。In recent years,the exploration of the hydrothermal dolomite reservoir of the Maokou formation in the Fuling area of southeastern Sichuan province has obtained a huge exploration potential,but the reservoir is thin and heterogeneous,and it is difficult to identify and predict seismic data.Based on the understanding of the main controlling factors for the hydrothermal dolomite reservoir development,the macro-description centered on fine characterization of basement faults and identification of favorable microfacies of bioclastic beach facies is first carried out.Secondly,quantitative prediction techniques such as reservoir logging sensitivity parameter optimization and dimension reduction and fusion are applied to realize the detailed description of hydrothermal dolomite reservoirs based on"fault control"and"facies control".The results show that the hydrothermal dolomite reservoir is mainly developed in the favorable sedimentary microfacies of the bioclastic shoal near the basement fault due to its special genesis and controlling factors,and tends to thin away from the basement fault.

关 键 词：涪陵地区 茅口组 热液白云岩 降维融合 

分 类 号：TE112.222[石油与天然气工程—油气勘探]