过去,钻杆腐蚀是钻井承包商遇到的最大消耗之一。目前,在钴杆上使用涂了底漆的塑料涂层大大减少了钻杆因腐蚀而引起的损坏。使用了塑料涂层后,美国的钻井承包商每年所节约更换钢管的费用高达一亿美元。影响钻杆寿命的因素钻井承包商对钻杆加强维护,已使钻杆运转成本降低。钻杆受腐蚀和机械损坏都会缩短寿命,因此,有效减少腐蚀损失 In the past, drill pipe corrosion was one of the biggest losses experienced by drilling contractors. At present, the use of primed plastic coatings on cobalt rods greatly reduces the damage caused by corrosion of the drill pipe. With plastic coatings, US drilling contractors save up to $ 100 million a year by replacing steel pipes. Factors Affecting the Life of Drill Pipe Drilling contractors have enhanced the maintenance of the drill pipe and have reduced the cost of operating the drill pipe. Drill pipe corrosion and mechanical damage will shorten the life, therefore, effectively reduce the corrosion loss