塔河油田奥陶系碳酸盐岩溶洞型储层三维地质建模与应用  

Three Dimensional Modeling and Application of Ordovician Carbonate Cavity Reservoirs in Tahe Oilfield

作　　者：赵彬[1,2] 侯加根[1] 刘钰铭[1] 

机构地区：[1]中国石油大学（北京）资源与信息学院,北京102249 [2]长江大学地球物理与石油资源学院,湖北荆州434023

出　　处：《石油天然气学报》2011年第5期12-16,333,共5页Journal of Oil and Gas Technology

基　　金：国家科技重大专项(2008ZX05014)

摘　　要：开展碳酸盐岩溶洞型储层三维地质建模研究,对刻画缝洞储集体的空间分布、定量表征溶洞型储层非均质性以及精确计算该类油藏油气储量等具有重要的现实意义。但由于碳酸盐岩溶洞型储层属于改造型储层,埋藏深、储层分布规律复杂、非均质性强、流体性质多变等特点造成储层三维空间描述极为困难。在前人研究的基础上,提出＂垂向岩溶分带、平面地貌分区＂的岩溶相控建模思路,以井孔识别溶洞数据作为确定性数据,波阻抗数据与溶洞发育概率相关关系作为井间约束数据,使用具有趋势的序贯指示模拟方法建立溶洞型储层三维地质模型。最后以塔河油田四区奥陶系溶洞型储层为例,对提出的溶洞型储层三维地质建模方法进行应用与验证,证明了该建模方法的可靠性和实用性。It was of practical significance to carry out 3D modeling for the carbonate cavity reservoir determining the spatial distribution of the cavity reservoirs,quantitative characterizing their heterogeneity and accurately calculating oil and gas reserves.Because the carbonate cave reservoirs belonged to reconstructed ones with the characteristics of deep burial,complex reservoir distribution,strong heterogeneity,changeable fluid properties,3D space description was difficult.On the basis of the predecessor's researches,proposed the karst modeling idea of vertical solution zoning and horizontal geomorphic division was proposed,cave data from wells were used as determining data,the correlation between cave development probability and wave impedance data were used as interwell constraining data,the cavity reservoir model was established by the sequence indication with a trend method.Finally,the Ordovician carbonate cavity reservoirs in Region 4 of Tahe Oilfield are taken for example,the proposed modeling method were applied and manifested.The reliability and practicality of the modeling method are verified.

关 键 词：碳酸盐岩溶洞型储层 三维地质建模 岩溶相控 井间约束 塔河油田 

分 类 号：P618.13[天文地球—矿床学]