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Spiral drill collar

Caroline zhang

Drill Pipe, Drill Collar, HWDP Manufacturer From China Mob/WhatsApp: +86 19930727857

发布日期: 2024年4月16日

Spiral drill collar production!

① Spiral drill collars are made with three spiral grooves machined on the outer cylindrical surface of ordinary drill collars. They are used to reduce the contact area with the well wall and can effectively prevent pressure differential stuck.

②Produced according to API Spec7-1 specifications.

③Size: 3 1/8"~ 11"

The threads can be cold rolled, copper plated or phosphated, and double shoulder threads and other special threads can be processed.

Email: [email protected]

WhatsApp: +86 19930727857

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