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Page Views: 1233 Date Added: 02/11/2009 Last Updated: 06/01/2009 Expiry Date: 02/07/2028 Product/Service Details Made from AISI 4145H alloy steel and fully heat treated, all its physical properties conform to the latest API Spec 7. Heavy drill pipe is the transition section between ordinary Kelly and drill collar. It can relieve the stress concentration of the combition of drill collar and Kelly during the transition. Besides, it can provide drill pressure and reduce the linked area of drill stem and side wall, as well as wear rate of OD. There is an upset section in the middle of drill pipe. The drill pipe and joint are welded with cemented carbidehardbanding, which can effectively keep the pipe from wearing. HWDP can replace drill collar and solve series of problems appearing in the vertical well of softer geologic structure. Its advantages are as follows: 1. Reducing torque in high-rpm or deep drilling. 2. Bring along the drill collar of stem within Less time 3. Reducing the tiresome damage of tool-joint connection 4. Easy for the stem's handling and operation 5. Helpful for keeping the direction of directional well. Weigao makes worldwide friends with honest, enduring, reciprocal business styles. Please feel free to contact us at any time. Skype: maryworld162 MSN:mary6121@hotmail.com (Email) Additional photos drill pipe drill collar HWDP cross-over sub non-magnetic drill bit body spiral drill collar short drill collar drill pipe connection

Company Information (Shanxi Weigao Petroleum Drilling Tool Manufacturing Co.,Ltd)

Company Profile: Shanxi Weigao Petroleum Drilling Tool Manufacturing Co., Ltd., a private high-tech enterprise with years of history in the production of oil drilling collars, square kellies, and other products, produces series of petroleum drilling machinery， drilling tools and non-excavation drilling tools professionally. It assembles scientific research, production and marketing into a whole. In Weigao, you can find many kinds of high-precision manufacturing and inspection equipment: special numerical-control pipe thread lathes, large cylindrical lathes, large milling machines, deep-hole boring machine drilling, 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, ballisticwork 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 passed 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. Main products: 1. Kelly series with all kinds of sizes: double, triangle, square and hexagonal kellies 2. Integral heavy weight drill pipes and integral non-magnetic heavy weight drill pipes 3. Drill collars: ordinary drill collars, spiral drill collars, non-magnetic drill collars and short drill collars 4. Lifting sub and cross-over sub 5. Non-standard drilling tools of small-size 6. Non-excavation drilling tools, drill stems, short bent subs and directional bits Our products can be used in the fields of oil exploration, coal exploration, hydrogeology, non-excavation traversing, and so on. In addition, they can repair used drill stems and tools, with threads and others. Please feel free to contact us if there is something we can do for you. Look forward to our sincere cooperation!. >> More Website URL: http://www.bridgat.com/u2349