石油勘探与开发2012，Vol.39Issue(6)：706-712,7.
缝-洞型地层缝洞的双侧向测井响应数值模拟
Numerical simulation of the dual laterolog response to fractures and caves in fractured-cavernous formation
摘要
Abstract
To study the response characteristics of dual laterolog in fractured-cavemous reservoirs, a model of fractures and caves was built, and the 3-D finite element method was utilized to simulate its logging responses. Caves of certain size have influence on the response of dual laterolog within certain space. With the cave size increasing, the logging apparent resistivity becomes lower, and the apparent resistivity ratio of deep laterolog to shallow laterolog decreases. Within less than the one-cave radius scope, the dual laterolog is more sensitive to the cave to borehole wall. The logging response of fractured-cavernous formation is mainly affected by fractures, and low angle fractures result in a negative difference of dual laterolog which is contrary to high angle fractures, but the existing caves do not change the matching relationship between the shallow and deep resistivity and fracture dip. The apparent conductivity of dual laterolog in fracture-cave formation presents a linear relationship with fracture aperture.关键词
缝洞地层/双侧向测井/测井响应/数值模拟Key words
fracture-cave formation/ dual laterolog/ logging response/ numerical simulation分类
能源科技引用本文复制引用
邓少贵,莫宣学,卢春利,张杨,刘来垒..缝-洞型地层缝洞的双侧向测井响应数值模拟[J].石油勘探与开发,2012,39(6):706-712,7.基金项目
国家自然科学基金(41174099) （41174099）
国家科技重大专项(2011ZX05020,2011ZX05035,2011ZX05003) （2011ZX05020,2011ZX05035,2011ZX05003）
