俄罗斯过套管电阻率测井技术应用研究  

On Through Casing Resistivity Logging(ECOS)

作　　者：李健 孙建孟 王正楷 

机构地区：[1]中海油服股份有限公司油田技术研究院,北京101149 [2]中国石油大学地球科学与技术学院,山东青岛266555

出　　处：《测井技术》2012年第1期63-67,共5页Well Logging Technology

摘　　要：介绍了过套管电阻率测井技术的发展历史和研究现状,对俄罗斯ECOS过套管电阻率测井仪应用的关键问题进行了讨论。采用传输线解法、自适应有限元等技术研究了ECOS过套管电阻率测井仪的数值测井响应,对套管腐蚀、水泥环、围岩、K因子、套管接箍、套管鞋、射孔等环境因素进行了系统的理论模拟。建立了相应的校正图版并进行软件实现,解释精度提高5%～10%。针对ECOS过套管电阻率测井仪编写了基于FORWARD平台的预处理软件,提高了与裸眼井测井资料结合进行水淹层评价的效率。Introduced are the history and research status of cased hole resistivity logging technology. Discussed are the key issues in ECOS application. Transmission-line model and HP method are used to simulate the logging response of ECOS, and obtained are the correction charts of the ECOS for various environmental factors such as the casing conditions, cement sheath, surrounding rocks, K factors, casing collars, perforations and etc. With all these corrections, the logging interpretation results accuracy goes up by 5% - 10%. A special pre-processing program inserted into FORWARD software are developed, which shortens the time for log data interpretation of cased holes and open holes. And the water flooded layer evaluation efficiency is improved prominently.

关 键 词：过套管电阻率测井 自适应有限元方法 校正图版 传输线解法 预处理 

分 类 号：P631.84[天文地球—地质矿产勘探]