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yi zhong ce jing ji lu shen du zi dong xiao zheng dian lu de fang an
Author(s): 
Pages: 47-61
Year: Issue:  5
Journal: Well Logging Technology

Keyword:  磁性记号脉冲计数计数器误差数校正电路比例乘法器深度校正触发器脉冲数数字测井仪;
Abstract: <正> 引进的和国内研制的数字测井仪,关于井深的记录,均采用两种信号,即磁性记号和光电深度编码脉冲(下面简称深度脉冲)。如原西安石油仪器二厂研制的数字测井仪中,磁性记号是每隔25米一个,而深度脉冲为每米40个。在测井过程中,每隔25米记一个磁性记号,但是,由于电缆伸长或打滑,井口滑轮外径不准或摩损以及泥浆比重变化等原因,
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