蟠龙油田王庄区长2储层流动单元划分方法  

Method of flow unit classification of Chang 2 reservoir in Wangzhuang Region,Panlong Oilfield

作　　者：白玉彬[1,2] 赵靖舟[1] 罗静兰[2] 陈孝平[3] 章爱成 

机构地区：[1]西安石油大学油气资源学院,陕西西安710065 [2]西北大学大陆动力学国家重点实验室,陕西西安710069 [3]陕西延长油田股份有限公司蟠龙采油厂,陕西延安717208

出　　处：《断块油气田》2011年第5期619-622,共4页Fault-Block Oil & Gas Field

基　　金："十一五"国家科技支撑计划"低(超低)渗透油藏精细描述关键技术与剩余油分布预测模型研究"(2007BAB1701);陕西省自然科学基础研究计划项目"酸性大环境中的碱性成岩作用研究--以靖安延长组为例"(2009JM5002)

摘　　要：针对蟠龙油田王庄区含水率高、产量递减快、储集层非均质性严重的开发现状,通过对表征储层的5项属性参数判别流动单元的能力及参数间相关性分析,选取泥质体积分数、孔隙度、流动分层指标3项参数作为长2储层流动单元划分参数,这些参数客观反映了研究区长2储层低孔、低渗、储层物性差及非均质性强等地质特征,应用聚类分析和判别分析相结合的方法,将长2储层划分为A、B、C、D等4类流动单元。分析了4类流动单元的岩性、物性、沉积微相及展布特征,不同流动单元具有不同的渗流能力和储集能力,因此油田开发中应采取不同的开发对策。The oilfield development of Wangzhuang Region in Panlong Oilfield has entered the high water-cut period. The oil production declines quickly and the reservoir heterogeneity is serious. Through analyzing the discretions and their correlation of five parameters of Chang 2 reservoir, three parameters such as clay content, porosity and FZI are chosen as classification parameters, which can objectively reflect the geologic features of poor physical properties and strong heterogeneity for low porosity and permeability reservoir. The Chang 2 reservoir is divided into four flow units including Type A, B, C and D by using the cluster and discriminatory methods. The lithology, physical property, sedimentary microfacies and distribution of four flow units are analyzed. The results show that different flow units have different seepage and reservoir ability. Therefore, the different development methods should be adopted according to the different flow units of reservoir.

关 键 词：辫状河 流动单元 聚类分析 判别分析 延长组 

分 类 号：TE325[石油与天然气工程—油气田开发工程]