相控技术在低勘探区生屑滩相储层预测中的应用  

Application of facies-controlled technique to bioclastic shoal reservoir prediction in less well zones

作　　者：李金磊[1] 陈祖庆[1] 王良军[1] 刘力辉 李建海 LI Jinlei;CHEN Zuqing;WANG Liangjun;LIU Lihui;LI Jianhai(Exploration Company,Sinopec,Chengdu 610041,China;Chengdu Rock Crystal Petroleum Science Technology Co.,Ltd.,Chengdu 610041,China)

机构地区：[1]中国石油化工股份有限公司勘探分公司,成都610041 [2]成都晶石石油科技有限公司,成都610041

出　　处：《岩性油气藏》2017年第3期110-117,共8页Lithologic Reservoirs

基　　金：中国石化科技部基础研究项目"四川盆地勘探地球物理关键技术研究"(编号:P16110)资助

摘　　要：针对生屑滩相储层非均质性强、常规物探技术及方法难以准确预测其储层和物性这一难题,研究形成了一套集"平剖融合"地震微相分析、相控储层反演、相控孔隙度预测等于一体的生屑滩相储层及物性预测方法流程和关键技术。结果表明:以波形聚类为基础的平面沉积相解释、剖面地震相监控的相分析技术,可以实现"平剖融合"的地震微相分析;相控岩性平均速度充填建模和有色反演的有机结合,可以实现低勘探区(少井或无井地区)生屑滩相储层预测;沉积结构和沉积微相控制下的速度-孔隙度转换,可以有效解决低勘探区生屑滩相储层物性预测难题。实例表明,该方法流程和关键技术对于生屑滩相储层物性预测行之有效。The bioclastic shoal reservoir has strong heterogeneity,and it is difficult to accurately predict the reservoirsand physical properties by conventional geophysical prospecting methods.A set of integrated techniques ofseismic microfacies analysis,facies-controlled reservoir inversion,facies-controlled porosity prediction wasformed,to predict bioclastic shoal reservoirs and their properties.The results show that facies analysis techniquesof plane sedimentary facies interpretation and profile seismic facies monitoring based on the waveform clusteringcan be used to realize seismic microfacies analysis.Under the control of sedimentary microfacies,the low frequencymodel was established by filling the average velocity of lithology in each facies,and then combined withthe color inversion technology,the impedance inversion could be completed.This is an effective inversion methodin the less well zones.According to the results of statistical rock physical analysis,the impedance could betransformed to porosity under the control of sedimentary structure and microfacies,and then the bioclastic shoalreservoir property prediction could be realized in the less well zones.Practical application has proved that this method is effective for the prediction of bioclastic shoal reservoirs.

关 键 词：生屑滩相储层 “平剖融合”微相分析 相控反演 相控孔隙度预测 

分 类 号：P631.4[天文地球—地质矿产勘探]