Drill Collar, China Drill Collar Supplier

Drill Collar - 89-203

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Description: It’s made from rolled or forged AISI4145H chrome-molybdenum steel. The content of chemical composition and microelement is controlled efficiently throughout the whole process.
According to its different figures and materials, it can be divided into three types:
Type A (columnar) : made from ordinary alloy steel, both inside and outside of the cross section of the pipe are cyclical.
Type B (spiral): made from ordinary ally steel, with a spiral chute on the outer surface of the pipe.
Type C (non-magnetic): made from stainless alloy-steel of low magnetic permeability, both inside and outside of the cross section of the pipe are rounded.
Main Functions: it’s one of the most important components of drill stem. It can provide the bit with bit weight and improve the rigidity of drill stem.
It’s in accordance with the standard of SY/T5144-1997 or API SPEC.7-1.

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Shanxi Weigao Petroleum Drilling Tools CO., LTD

Address: NO.3, South Industrial Zone of Nanshahe, Songzhuang Shuiyu, Taiyuan, Shanxi, China, 030045
Tel: 0086-0351-2598640
Shanxi Weigao Petroleum Drilling Tools CO., LTD, a private high-tech enterprise with years of history in the production of petroleum drilling collars, square kellys, and other products, produces series of petroleum drilling machineries and non-excavation drills professionally. It assembles scientific research, production and marketing into a whole. We have many kinds of high-precision manufacturing and inspection equipment: special numerical-control pipe thread lathes, large milling machines, deep-hole boring machine drillings, friction welding, heat treatment production line with medium frequency as well as variety of thread gauges, single measuring instruments, thickness gauges, hardness testers, ultrasonic flaw detectors, ballistic work testing machines, universal testing machines with microcomputer displaying hydraulic pressure, and so on. With sophisticated production equipment, strict inspecting ways and strong technology, we have mastered the key technique in nationalizing petroleum drilling tools. API standard is implemented strictly throughout the whole process of production. Our company has already won the Certification of Quality System ISO9001: 2000 and has obtained the product logo licenses of API SPEC 7-1 (certificate No. 7-1-0625) and API Q1 (Certificate No. 0571), which are issued by American Petroleum Institute.