定边油田乔崾岘区延长组和延安组储层物性变化特征  

Variation distribution ofphysical properties on the Yanchang and Yanan Formation in Yaoxian area of Dingbian oilfield

作　　者：张刚[1] 王瑞生[1] 韩迎鸽[1] Zhang Gang;Wang Ruisheng;Han Yingge(Nanniwan Oilfield,Yanchang Oilfield Co.,Ltd.,Shaanxi Dingbian 718600)

机构地区：[1]延长油田股份有限公司定边采油厂,陕西定边718600

出　　处：《云南化工》2020年第10期162-163,166,共3页Yunnan Chemical Technology

摘　　要：利用岩心实测物性和测井解释物性资料,通过数据统计分析了定边油田乔崾岘区各主力油层储层物性的变化特征。结果表明,延安组延6储层和延长组长1储层物性相对较好,为低渗透~特低渗储层,而延长组长4+5、长7和长8储层物性相对较差,为特低渗透~超低渗储层。研究区储层物性对油气分布的控制下限规律性为其上部延安组相对较大,其次为延安组长1,延长组长4+5和长8最低。Variation distribution of physical properties on major reservoirs of the Yanchang and Yanan Formation in Yaoxian area of Dingbian oilfield are analyzed by using the measured property,well log interpretation and data statistics method.The results show that the physical properties in the Yan 6 of Yanan Formation and Chang 1 of Yanchang Formation are relatively good,they are the low permeability^extra-low permeability reservoir.The physical properties in the Chang 4+5,Chang 7 and Chang 8 of Yanchang Formation are relatively bad,they are extra-low permeability^ultra-low permeability reservoir.Control lower limit of physical property on oil distribution in the study area in the Yanan formation is good,that in the Chang 1 formation is medium,and that in the Chang 4+5 and Chang 8 formations are bad.

关 键 词：延安组 延长组 储层物性 定边油田 鄂尔多斯盆地 

分 类 号：P618.13[天文地球—矿床学]