储层不确定性评价  

Appraisement of the uncertainty of reservoir

作　　者：李少华[1] 张昌民[1] 彭裕林[2] 张尚锋[1] 陈新民[2] 姚凤英[2] 

机构地区：[1]长江大学地球科学系,湖北荆州434023 [2]江汉油田公司勘探开发研究院,湖北潜江433100

出　　处：《西安石油大学学报（自然科学版）》2004年第5期16-19,24,共5页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：湖北省教育厅重大项目资助(项目批准号:2000E0105)

摘　　要：陆相碎屑岩储层非均质性严重,在已有资料的基础上通常得不到对储层确定的认识.储层随机建模技术可以产生多个等概率实现,通过对这些实现的对比研究,可以有效地认识储层的不确定性,降低开发决策的风险.在坪北油田沉积微相模型研究中,首先利用高分辨率层序地层学原理进行地层划分对比,建立构造模型;然后以中期旋回为单位利用顺序指示模拟方法建立了沉积微相三维模型.通过对多个实现的对比研究,较好地认识了储层的不确定性.The heterogeneity of continental clastic reservoir is often serious, so we cannot get a deterministic understanding about such reservoir according to the data we can get. In other words, there is the uncertainty of reservoir. The uncertainty of reservoir can be appraised through analyzing and comparing the several realizations with equiprobability generated by stochastically modeling, which can reduce the risk of development decision-making. In the research of the sedimentary microfacies model for Pingbei oilfield, three intermediate cycles are identified by using high-resolution sequence stratigraphy. A three-dimension model of each intermediate cycle (sequence) is established by using sequential indicator simulation, and the more clear knowledge about the uncertainty of reservoir is obtained through the analysis and comparison of the obtained realizations.

关 键 词：碎屑岩储层 沉积微相 顺序指示模拟 坪北油田 高分辨率层序地层学 非均质性 随机建模 陆相 地层划分 构造模型 

分 类 号：TE122[石油与天然气工程—油气勘探] P618[天文地球—矿床学]