油气管线投产前及日常维护过程中的清管、试压、干燥、惰化及内检测作业中需要发送和接收清管球和内检测器,此过程中都需要用到收发球设备及工具,为保证作业顺利进行,需根据现场情况及实际能力选择不同的收发球方法,实现效率与成本的最优配比。 Before the oil and gas pipeline put into operation and during routine maintenance, pigging, pressure testing, drying, inerting and internal inspection operations need to send and receive pigs and internal detectors. In this process, both the receiver and the ball equipment and tools are needed. In order to ensure the smooth progress of operations, different methods of receiving and dispatching should be chosen according to the situation on the site and the actual ability so as to achieve the optimal ratio between efficiency and cost.