双台肩钻具接头可大幅度提高钻具的抗扭强度。

The torsional strength of the drilling tools can be greatly increased by using the double shoulder tool joint.

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同时由于钻具接头超磨，也容易造成钻具使用周期缩短甚至提前报废。

At the same time the joint drill wear also easily lead to shortening the life cycle of drilling and even early retirement.

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根据零件图试制双台肩钻具接头，对其进行上卸扣试验和水压密封测试。

We manufacture the tool joint, make the seal test and make-and-break test.

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