针对地浸铀矿山单参数物探测井效率低、仪器设备易损耗、测井参数对地浸采铀钻孔针对性不强等问题,优选了三侧向电阻率、单臂井径、自然电位和FD-3019定量伽马等4种参数,设计研制了JCX3-3019多参数组合探管.探管下放1次即可完成所有参数的综合测井,测井曲线图平滑稳定,新参数提高了对地层的辨识性,测井解释质量得到提升;测井时间由原来的6h缩短至2h,在效率显著提升的同时,也有效降低了仪器设备损耗、设备投资和测井风险.
Concerning about the problems of single parameter geophysical logging at in-situ leaching uranium mine,such as low efficiency,vulnerability of equipment and parameters' poor pertinence,four kind of logging parameters including the three lateral resistivity,single arm caliper,natural potential and FD-3019 gamma were preferably selected to design for borehole logging at in-situ leaching uranium mine,and a JCX3-3019 multi-parameter combination probe was developed.The multi-parameter combination probe can completely measure all parameters of comprehensive well logging once.The logging curve of the new probe is smooth and stable,and the logging quality is also improved.The logging time can be reduced from 6 hours to 2 hours.It not only improves the logging efficiency,but also reduces the equipment damage,investment and logging risks.