摘要
海洋可控源电磁法已成为海底油气资源勘查中重要的地球物理方法之一,海底接收机作为重要的海上装备,其性能对勘探效果具有决定作用,因此有必要对接收机的各项性能进行详细摸底。新研制的接收机在进行海上作业之前,需要先进行一系列对比测试,以检验其应用效果和可靠性。由于海上对比测试工作成本高、难度大,故设计了一套陆地条件下的对比测试方案,借助现有陆地MT观测系统对新研制的海底电磁接收机进行对比测试,主要完成了仪器通道间一致性、仪器间的一致性以及测量结果重复性三项测试工作。对测试数据进行了分析处理,获得的结果可以为海底电磁接收机的性能评价提供依据。
Marine controlled-source electromagnetic（ MCSEM） method is an important geophysical tool in ocean oil and gas resource exploration. As a key device of MCSEM observing system,the ocean bottom electromagnetic（ OBEM） receiver is decisive in marine observation. As for a newly developed OBEM receiver,comparison test is necessary to evaluate its performance before it is used to conduct data acquisition in sea. Because of the high cost and difficulties of ocean tests,an alternative field comparison test is designed in this paper. A series of tests including channel consistency,instrument consistency and measuring result repeatability were carried out with existing MT observing system providing comparing results. The results obtained by testing data analysis can provide a basis for performance evaluation of OBEM receivers.
作者
汪海峰
邓明
陈凯
葛双超
WANG Hai-Feng DENG Ming CHEN Kai GE Shuang-Chao(School of Geophysics and Information Technology, China University of Geoscienees, Beijing 100083, China Key Laboratory of Geo-detection, Minis- try of Education, China University of Geoseiences, Beijing 100083, China)
出处
《物探与化探》
CAS
CSCD
2016年第5期935-940,共6页
Geophysical and Geochemical Exploration
基金
国家"127"专项课题(GZH201100307)
国家自然基金委重点项目(61531001)
国家高技术研究发展计划("863"计划)课题(2012AA09A201
2014AA06A603)
关键词
海洋可控源电磁
海底电磁接收机
性能测试
一致性评估
观测装置
marine controlled-source electromagnetic
sea bottom electromagnetic receiver
performance test
consistency evaluation
observation device
