水平井地层电阻率各向异性模拟及实例分析  

FORMATION RESSITIVITY ANISOTROPY SIMULATION OF HORIZONTAL WELLS AND CASE ANALYSIS

作　　者：秦臻[1] 汪中浩[1] 后敏[1] 魏芬[1] 

机构地区：[1]油气资源与勘探技术教育部重点实验室(长江大学)

出　　处：《国外测井技术》2011年第2期9-12,3,共4页World Well Logging Technology

摘　　要：地层电阻率各向异性可分为宏观各向异性和微观各向异性,实际生产中常见的是砂泥岩薄互层中的宏观各向异性。本文通过分析HD4油田2口水平井井眼轨迹与地层之间关系,模拟出地层的视电阻率与导眼井实际测量电阻率对比,并模拟出各向异性系数,发现各向同性地层中能借用直井的饱和度解释模型处理水平井的测井资料。Formation resisitivity anisotropy can be divided into macroscopic anisotropy and microscopic anisotropy.Macroscopic anisotropy of thin interbedding in sand shale rocks is common in production.Through analyzing the relationship between well track and formation of 2 horizontal wells in HD4 oilfield,the apparent resistivity and actual measurement resistivity contrast is simulated,and coefficient of anisotropy is also simulated.It is found that the saturation interpretation model for isotropic formation of straight wells can be used to process well logging data of horizontal wells.

关 键 词：电阻率各向异性 水平井 模拟 

分 类 号：TE151[石油与天然气工程—油气勘探]