苏里格气田东区储层分类评价  

Reservoir classification and evaluation of He 8 and Shan 1 members in the east of Sulige gasfield

作　　者：代金友[1] 谢建慧 李子龙[1] 任茜莹 张慧先 

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249 [2]中国石油长庆油田分公司第三采油厂

出　　处：《石油地质与工程》2017年第2期57-60,共4页Petroleum Geology and Engineering

基　　金：国家重大专项"复杂油气田地质与提高采收率技术"(2008ZX05009-004-03);中国石油大学(北京)科研基金"柳杨堡气田气水分布规律及气井出水机理研究"(2462015YQ0214)

摘　　要：苏里格气田东区盒8段、山1段储层非均质性强,物性差异大,不同质量储层分布状况认识不清。利用砂岩厚度、砂地比、孔隙度、渗透率等参数,应用模糊聚类方法开展了储层分类评价。将储层划分为三类,各类储层相关参数均质为:Ⅰ类储层砂岩厚度11.4 m、砂地比0.65、孔隙度8.5%、渗透率0.7×10^(-3)μm^2,占16.3%;Ⅱ类储层砂岩厚度9.1 m、砂地比0.55、孔隙度6.9%、渗透率为0.32×10^(-3)μm^2,占27.9%;Ⅲ类储层砂岩厚度5.9 m、砂地比0.39、孔隙度5.2%、渗透率0.14×10^(-3)μm^2,占55.8%。其中,Ⅰ-Ⅱ类储层呈透镜状或条带状分布,对油气富集有利,可作为后续开发重点。He 8 and Shan 1 members in the east of Sulige gasfield had characteristics of high reservoir heterogeneity,obvious physical property distinctions,and the distribution understanding of different reservoirs was not clear.With consideration of sandstone thickness,net-to-gross ratio,porosity and permeability,fuzzy clustering method was applied to carry out reservoir classification and evaluation.The reservoirs were classified into 3 categories.Type-Ⅰ accounted for 16.3% of all reservoirs,with sandstone thickness of 11.4m,net-to-gross ratio of 0.65,porosity of 8.5% and permeability of 0.7×10^(-3)μm^2.Type-Ⅱ accounted for 27.9%,with sandstone thickness of 9.1m,net-to-gross ratio of 0.55,porosity of 6.9%and permeability of 0.32×10^(-3)μm^2.Type-Ⅲaccounted for 55.8%,with sandstone thickness of 5.9m,net-to-gross ratio of 0.39,porosity of 5.2%,permeability of 0.14×10^(-3)μm^2.Among these reservoirs,type-Ⅰ and type-Ⅱ presented lentoid and beltlike distribution,which was good for gas and oil enrichment and could be taken as the target for subsequent development.

关 键 词：鄂尔多斯盆地 苏里格气田 开发选区 储层评价 

分 类 号：TE112.36[石油与天然气工程—油气勘探]