哈拉哈塘油田跃满区块奥陶系断溶体连通性研究  

Study on the Connectivity of Ordovician Fault-karst Reservoir in Yueman Block,Halahatang Oilfield

作　　者：陈仲骅 徐守余[1] 许成敏 CHEN Zhonghua;XU Shouyu;XU Chengmin(School of Geosciences,China University of Petroleum(East China),Qingdao 266580,China)

机构地区：[1]中国石油大学(华东)地球科学与技术学院,山东青岛266580

出　　处：《甘肃科学学报》2023年第6期22-30,共9页Journal of Gansu Sciences

基　　金：中石油重大科技项目(ZD2019-183-006)。

摘　　要：塔北地区哈拉哈塘油田跃满区块碳酸盐岩断溶体储层具有储集空间类型多、尺度差异大、非均质性强、连通关系复杂等特征,严重制约油藏高效开发。研究将断溶体分为大尺度断裂、洞穴、裂缝、孔洞,综合运用研究区岩心、钻录井、测井资料、地震资料对断溶体进行识别和刻画。通过三维地质模型立体展现储集体的分布,结合动态资料对断溶体的连通性进行定性分析,划分出断裂连通型、断控洞穴连通型、断控孔缝连通型、孤立洞穴型4种连通类型。利用动态时间规整(DTW)的方法定量评价生产井的连通性,其评价结果与静态资料和动态资料相吻合。Carbonate fault-karst reservoir has various reservoir spaces,different scales,strong heterogeneity and complex connectivity in Yueman block of Halahatang oilfield in northern Tarim Basin,which seriously restricts the efficient development of the reservoirs.In this study,the fault-karst reservoir is divided into large scale fractures,caves,fractures and vugs,which is identified and characterized by using core,drilling logging,logging data,seismic data.On the basis of determining the distribution of reservoirs based on 3D geological modeling,dynamic data is used to qualitatively analyze the connectivity of fault-karst reservoir,and fault-karst reservoir connectivity is divided into four types:fault connectivity,cave connectivity controlled by fault,vug-fracture connectivity controlled by fault and isolated cave.Finally,the dynamic time warping(DTW)method is used to quantitatively evaluate the connectivity of production wells,and the connectivity evaluation results of DTW method are consistent with static and dynamic data.

关 键 词：跃满区块 断溶体 连通性 建模 断裂 

分 类 号：TE122[石油与天然气工程—油气勘探]