利用弹性参数识别气、水层

西南石油大学学报(自然科学版) ›› 2012, Vol. 34 ›› Issue (3): 83-88.

利用弹性参数识别气、水层

李山生1，赵辉2，司马立强3，戴诗华4

1. 中国石化胜利石油管理局测井公司，山东东营 2576962. 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 6100513. 西南石油大学资源与环境学院，四川成都 6105004. 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

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-06-01 发布日期:2012-06-01

Identification of Water and Gas Reservoirs With Elastic Parameters

Li Shansheng1, Zhao Hui2, Sima Liqiang3, Dai Shihua4

1. Well Logging Company of Shengli Oilfield Company，SINOPEC，Dongying，Shandong 257696，China2. Geological Exploration and Development Research Institute of Chuanqing Drilling Engineering Co. Ltd.，CNPC，Chengdu，Sichuan 610051，China3. School of Earth Resources & Environment，Southwest Petroleum University，Chengdu，Sichuan 610500，China4. Well Logging Company of Western Drilling Engineering Co. Ltd，CNPC，Karamay，Xinjiang 834000，China

Received:1900-01-01 Revised:1900-01-01 Online:2012-06-01 Published:2012-06-01

摘要/Abstract

摘要： 摘
要：对于复杂孔隙结构储层而言，孔隙结构对电阻率的影响程度可能远大于流体类型对电阻率的影响，这就使得
气、水层的电阻率特征差别不明显，利用电阻率不能有效区别气、水层。基于孔隙中天然气与油、水体积模量的显著差
别，根据孔隙流体体积模量的大小来识别气、水层。研究采用了纵横波速度比（vp/vs）和孔隙流体的体积模量这两个与
电阻率无关的弹性参数来判别储层的流体类型。理论模拟表明含有少量气体时可使纵波速度及其纵横波速度比显著
减小，横波对气体含量不敏感，水层的 vp/vs显著大于气层。采用 vp/vs与横波交会法识别气、水层可消除孔隙和岩性
的影响而突出流体类型的影响。

关键词: 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

Abstract: 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 distin-
guish them with resistivity. Pore fluid bulk modulus is used to identify gas or water reservoirs based on the marked difference
betweengasbulkmodulusandwater（oroil）bulkmodulus. Theratioofcompressionalwaveandshearwavevelocityandelastic
parameters are used to determine the fluid type. The simulating results show that a small quantity of gas can cause significant vp
and vp/vsdecreas，and vsis insensitive to the gas content，and vp/vsof water reservoirs are much significantly greater than that
of gas reservoirs. A cross plot of vp/vsversus vscan be used to identify gas or water reservoirs. This cross plot can eliminate
the effects of porosity and lithology on vp/vs.

Key words: Key words：elastic parameters, vp/vs, pore fluid bulk modulus, fluid type

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.

Li Shansheng;Zhao Hui;Sima Liqiang;Dai Shihua. Identification of Water and Gas Reservoirs With Elastic Parameters[J]. 西南石油大学学报(自然科学版), 2012, 34(3): 83-88.