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以往对石油套管进行水压试验时,对其内腔排气及公扣端密封多数采用完井胶塞来实现,一个5(1/2)胶塞需用200余元,由于它是大量的易损件,使生产成本大幅度上升。为此,大庆油田物资供应处从1988年开始进行改进试验。1990年试验成功以组合式胶塞代替完井胶塞并应用到生产中去。现损坏一个胶皮碗仅为30元,其经济效益明显,排气密封也非常理想。使用中应注意以下几点:①组合体轴向长度是管材内径的1.5倍为好,这样组合体在运动中
In the past, when the oil casing was hydrostatically tested, most of the exhaust gas and male end seals of the oil casing were realized by the completion rubber plug. A 5 (1/2) rubber stopper needs more than 200 yuan because it is a large quantity Wearing parts, so that the cost of production increased significantly. To this end, Daqing Oilfield Supplies began to improve the test from 1988. In 1990, the test successfully replaced the completion rubber plug with a combination of rubber stopper and applied to the production. Now damaged a plastic bowl is only 30 yuan, its obvious economic benefits, exhaust seal is also very satisfactory. The use of the following points should be noted: ① axial length of the combination of pipe diameter is 1.5 times as good, so that the assembly in motion