摘要
套管井中,由于套管对电流的强阻隔作用,只有极其微弱的电流可以进入地层,使得过套管电阻率测井很难实现。根据电磁场论和传输线模型研究CHFR测井的测量原理,建立CHFR测井响应方程。应用表明,CHFR测井探测深度大,测量结果受地层环境和井眼的影响小,实现了将已发展成熟的裸眼井电阻率评价储层油气分布方法应用于套管井,可广泛应用于套管井地层评价、注水效果监测及产层动态监测等。
Casing resistivity logging is hard to realize because of the strong hindering effect of casing to electrical current and only feeble current can enter the formation.The measurement principle of CHFR logging is studied by using electromagnetic field theory and transmission line model,and CHFR logging response equation is established.The application has shown that CHFR logging can detect in deep depth,and the result is less affected by environment and borehole.It is realized to apply the method of evaluating oil and gas distribution with open hole resistivity,which has been well known and used widely,to cased hole for formation assessment,flooding efficiency detection and pay zone dynamic monitoring.
出处
《特种油气藏》
CAS
CSCD
2006年第3期35-37,共3页
Special Oil & Gas Reservoirs
关键词
CHFR测井
传输线模型
套管井
过套管电阻率
测井响应
储层评价
CHFR logging
transmission line model
cased hole
through casing resistivity
logging response
reservoir assessment
