无缆测井深度影响因素的分析与对策

Analysis and Countermeasures on the Influencing Factors of Wireless Logging Depth

无缆测井和常规电缆测井相比,最大的不同点是测井过程中深度系统与采集系统分开,测井数据易出现深度质量问题。针对这种情况,结合现场经验,从深度跟踪系统入手,分析无缆测井深度的主要影响因素包括深度刻度、校正方法、钻具表的准确度和人为主观因素等,分别采用现场试验和数据对比等方式进行研究,提出相应的对策与解决方法。

The biggest difference between wireless logging and conventional wireline logging is the depth system separated from the acquisition system in the logging process,and the logging data is prone to depth quality problems.In this situation,combined with the field experience,starting with the depth tracking system,it is considered that the main influencing factors of the depth of wireless logging include depth scale,correction method,accuracy of drilling tool table and human subjective factors,etc.Studies them respectively by means of field test and data comparison,and puts forward corresponding countermeasures and solutions.