西南石油大学学报（自然科学版）2012，Vol.34Issue(3)：83-88,6.DOI:10.3863/j.issn.1674-5086.2012.03.012
利用弹性参数识别气、水层
Identification of Water and Gas Reservoirs With Elastic Parameters
李山生 1赵辉 2司马立强 3戴诗华4
作者信息
- 1. 中国石化胜利石油管理局测井公司,山东东营257696
- 2. 中国石油川庆钻探工程有限公司地质勘探开发研究院,四川成都610051
- 3. 西南石油大学资源与环境学院,四川成都610500
- 4. 中国石油西部钻探工程有限公司测井公司,新疆克拉玛依834000
- 折叠
摘要
Abstract
The influence of the pore structure on resistivity is much greater than that of fluid type for reservoirs with complex pore structure, which has little difference in resistivity between gas reservoirs and water reservoirs. So, it is difficult to distinguish them with resistivity. Pore fluid bulk modulus is used to identify gas or water reservoirs based on the marked difference between gas bulk modulus and water (or oil) bulk modulus. The ratio of compressional wave and shear wave velocity and elastic parameters are used to determine the fluid type. The simulating results show that a small quantity of gas can cause significant vp and vp/vs decreas, and vs is insensitive to the gas content, and vp/vs of water reservoirs are much significantly greater than that of gas reservoirs. A cross plot of vp/vs versus vs can be used to identify gas or water reservoirs. This cross plot can eliminate the effects of porosity and lithology on vp/vs.关键词
弹性参数/纵横波速度比/孔隙流体体积模量/流体类型Key words
elastic parameters/ vp/vs/ pore fluid bulk modulus/ fluid type分类
能源科技引用本文复制引用
李山生,赵辉,司马立强,戴诗华..利用弹性参数识别气、水层[J].西南石油大学学报（自然科学版）,2012,34(3):83-88,6.
