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我公司近年来开展了过油管射孔作业,由于油管比较细,采用的是8毫米电缆。井口装置和一般射孔作业也不完全相同。因此不能采用习惯的捆札明显记号的方法。在作业中,仪器上提到接近井口约200～300米时就要停车,用人力把电缆拉上来,以防仪器落井造成工程事故。这样既加大了劳动强度,又延长了作业时间。为此,我们研制了电缆到位报警器,这种仪器体积小,又是独立的单元,可以放在绞车上,也可和仪器车组合,经现场使用,效果良好。下面介绍这种仪器的原理和使用方法。
In recent years, my company launched a pipeline perforation operations, due to relatively thin tubing, using a 8 mm cable. Wellhead device and the general perforation operations are not exactly the same. Therefore, we can not use the customary method of binding clear notes. In operation, the instrument mentioned parking near the wellhead about 200 to 300 meters, pull the cable with manpower to prevent the instrument from falling to the ground to cause engineering accidents. This will not only increase the labor intensity, but also extend the operating time. To this end, we have developed a cable alarm in place, this small size instrument, but also a separate unit, can be placed on the winch, but also with the car combination, the scene, the effect is good. The following describes the principle and use of this instrument.