Integral Heavy Weight Drill Pipe, HWDP, Kellies

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Integral Heavy Weight Drill Pipe PDM can supply various of heavy weight drill pipes (HWDP) with the outer diameters from 2 7/8” to 6 5/8”, including integral HWDPs, spiral HWDPs, non magnetic HWDPs, and other special ones required by customers. Kellies PDM makes square or hexagonal kellies with the materials of AISI 4145H or AISI4145HM alloy steel according to API Spec 7–1. Full-length heat treating, full-length and full-section ultrasonic testing and magnetic leaking detection assure the quality reliability of kellies. Non-Magnetic Drilling Tools Special low-carbon stainless steel, developed by PDM independently, is adopted to manufacture the non-magnetic products. The raw material has the features of low magnetic conductivity, high intensity of mechanical character and excellent resistance of inter-granular stress corrosion cracking. PDM can manufacture all kinds of non-magnetic drill collars, non-magnetic HWDPs and non-magnetic high pressure resistance drill pipes according to API specifications or other standards. The specifications of non-magnetic drill collars are the same as the slick ones.

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Pipe & Drilling Tools Manufacture Co., Ltd.

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