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jing bi sheng bo ce jing fang fa de yan jiu ji chu bu shi yan xiao guo
Pages: 12-29
Year: Issue:  1
Journal: Well Logging Technology

Keyword:  现场试验井壁声波测井仪地层换能器工作频率传输系数声波时差相对精度接收器;
Abstract: <正> 井壁声波测井仪于一九七四年四月开始研制,一九七五年四月做出样机,经改进后于七六年五月开始进行现场试验,初步见到良好效果。试验中达到的主要性能和指标1.机械式推靠器
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