吴起油田白豹地区东部长8、长9储层特征研究  

Study on Reservoir Characteristics of Chang 8 and Chang 9 in Eastern Bai Bao Area of Wuqi Oilfield

作　　者：刘阳 郝佼佼 程永福 Liu Yang;HaoJiaojiao;ChengYongfu(Exploration and Development Technology Research Center of Yanchang OilField Co.,Ltd.,Yan'an 71600,China;Zhidan Oil Production Plant of Yanchang Petroleum Co.,Ltd.,Yan'an 716001,China;Wuqi Oil Production Plant of Yanchang Petroleum Co.,Ltd.,Yan'an 716001,China)

机构地区：[1]延长石油股份有限公司勘探开发技术研究中心,陕西延安716001 [2]延长石油股份有限公司志丹采油厂,陕西延安716001 [3]延长石油股份有限公司吴起采油厂,陕西延安716001

出　　处：《云南化工》2024年第7期178-182,共5页Yunnan Chemical Technology

摘　　要：对鄂尔多斯盆地吴起油田白豹东部地区长8、长9储层进行储层特征研究。结果表明:白豹东部长8和长9储层的砂岩多为长石砂岩和岩屑长石砂岩;储层孔喉类型属于细孔粗喉,渗透率为强非均质型;长8砂体发育好,长9砂体发育程度差。同时储层敏感性研究表明:白豹项目区的长8、长9储层均为弱-中速敏、弱水敏和弱碱敏及中偏弱应力敏特征,但长8储层显示为弱酸敏,长9储层为强酸敏。In this paper,the reservoir characteristics of Chang 8 and Chang 9 reservoirs in the east Baibao area of Wuqi Oilfield,Ordos Basin are studied.The results show that the sandstone of Chang 8 and Chang 9 reservoirs in east Baibao is mostly arkose and lithic arkose.The pore throat type of the reservoir is fine pore and thick throat,and the permeability is strong heterogeneous type.Chang 8 sand body is well developed,while Chang 9 sand body is poorly developed.At the same time,the reservoir sensitivity study shows that the Chang 8 and Chang 9 reservoirs in the Baibao project area are weak-medium velocity sensitive,weak water sensitive,weak alkali sensitive and medium weak stress sensitive characteristics,but the Chang 8 reservoir is weak acid sensitive and the Chang 9 reservoir is strong acid sensitive.

关 键 词：吴起白豹东部 长8、长9储层 致密油层 储层敏感性 

分 类 号：TE122[石油与天然气工程—油气勘探]