砂泥岩地层横波测井曲线预测方法研究  

Shear-wave logging curve prediction method for shaly sand formation

作　　者：张元中[1] 周开金 赵建斌 苗秀英 

机构地区：[1]中国石油大学(北京)油气资源与探测国家重点实验室,北京102249 [2]中海石油深圳分公司研究院,广东广州510240 [3]中国石油测井有限公司油气评价中心,陕西西安710077 [4]中国石油测井有限公司长庆事业部,陕西西安710201

出　　处：《石油物探》2012年第5期508-514,423-424,共7页Geophysical Prospecting For Petroleum

基　　金：国家科技重大专项(2008ZX05010-002);中国博士后科学基金(20070410122);中国博士后科学基金特别资助基金(200801162);教育部留学回国人员科研启动基金;中国石油大学(北京)基本科研基金(KYJJ2012-05-14)联合资助

摘　　要：基于早期开发井普遍缺乏横波测井资料的现实,分别讨论了基于Greenberg-Castagna公式、近似Gas-smann方程和Xu-White模型等3种方法在砂泥岩地层预测横波测井曲线的基本思路,给出了相应的计算流程。以某油田开发井横波时差测井曲线预测为例,通过实测横波测井资料的对比,分析了3种方法在砂泥岩地层的应用效果。结果表明,Greenberg-Castagna公式法简单实用,经过流体校正后在砂泥岩地层的应用效果较好;近似Gassmann方程法和Xu-White模型法相对复杂,对输入参数进行优化将有助于提高横波速度预测的精度。In the early stage,production wells are usually lack of S-wave logging data.Starting from this point,we probed the prediction of S-wave logging by three methods based on Greenberg-Castagna formula,approximate Gassmann equation and Xu-White model.Taking the prediction of S-wave moveout logging of the production wells from one oilfield as example,by comparing it with the actual S-wave logging data,the application result of the three methods was analyzed,which shows that Greenberg-Castagna formula is simple and practical,and can achieve good result in shaly sand formation after fluid correction.Moreover,approximate Gassmann equation and Xu-White model are relatively complex,and the optimization on input parameters will increase the precision of S-wave velocity prediction.

关 键 词：砂泥岩地层 横波测井预测Greenberg-Castagna公式 Gassmann方程Xu-White模型 

分 类 号：P631.4[天文地球—地质矿产勘探]