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
刘阳 1郝佼佼 2程永福3
作者信息
- 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
- 折叠
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.
Abstract
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 devel-oped,while Chang 9 sand body is poorly developed.At the same time,the reservoir sensitivity study shows that the Chang 8 and Chang 9 reser-voirs in the Baibao project area are weak-medium velocity sensitive,weak water sensitive,weak alkali sensitive and medium weak stress sensi-tive 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Key words
East of the White Leopard Area of Wuqi Oilfield/Chang 8 and Chang 9 Reservoirs/Tight Oil Reservoir/Reservoir Sensitivity引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据