多元约束的古岩溶碳酸盐岩洞穴储层分布建模方法——以塔河油田奥陶系油藏为例  

A multi-constrained modeling method for paleokarst carbonate reservoirs:An application to the Ordovician reservoir in the Tahe Oilfield

作　　者：刘钰铭[1] 侯加根[1] 李永强[1,2] 马晓强[1] 董越[1] 宋随宏[1] LIU Yuming;HOU Jiagen;LI Yongqiang;MA Xiaoqiangl;DONG Yue;SONG Suihong(College of Geosciences,China University of Petroleum-Beo＇ing,Beij＇ing 102249,China;Petroleum Exploration and Production Research Institute,Sinopec,Beijing 100083,China)

机构地区：[1]中国石油大学(北京)地球科学学院,北京102249 [2]中国石化石油勘探开发研究院,北京100083

出　　处：《石油科学通报》2018年第2期125-133,共9页Petroleum Science Bulletin

基　　金：国家科技重大专项(2016ZX05014-002;2016ZX05010-001);中国石油大学(北京)科研基金(KYJJ2012-01-19)联合资助

摘　　要：不同于常规碎屑岩储层,碳酸盐岩古岩溶洞穴储层有其独特的成因和分布规律,等时建模和沉积相相控建模等传统建模策略已不适用于该类储层。本文以塔里木盆地塔河油田奥陶系油藏为例,在洞穴储层类型识别与划分的基础上,提出了大型断裂、岩溶带和地震波阻抗数据综合约束的洞穴储层三维分布建模新方法,建立了洞穴储层三维分布模型。主要采用了带有趋势的高斯克里金模拟方法,通过基于最优估计的数据融合理论将三类约束数据充分整合作为模拟的趋势约束数据。结果表明,模拟结果与累积产量数据吻合较好。Unlike conventional clastic rock reservoirs,paleokarst cavernous carbonate reservoirs are special in origin and distribution,which causes the inapplicability of isochronal modeling and facies-controlled modeling.Taking the Ordovician reservoir in the Tahe Oilfield,Tarim Basin as an example,based on identification of cave reservoir types,an original 3D modeling method combining the constraint of faults,karst zones,and seismic impedance was proposed,and a 3D karst reservoir distribution model was built.A Gaussian Kriging simulation method was used and the three kinds of constraint were integrated by the data fusion principle.The results compare well with the cumulative production data.

关 键 词：古岩溶洞穴储层 储层建模 塔河油田 多元约束 

分 类 号：P618.13[天文地球—矿床学]