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  •  Drill Collar
  • The " Drill Collar" includes all product list, manufacturer and supplier list of China Drill Collar. You may also choose to use the "keyword search" function to find out the products you are looking for.
  • Drill collar
  • Drill collar
  • Short drill collar
  • Drill Collar
Drill Collar
  • Drill Collar 2016-10-14
  • Drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. Drill collar are manufactured strictly by the standard API Spec7...
  • Beijing Tengyue Technology Co.,Ltd BeiJing Province,China
Non-magnetic Drill Collar
  • Non-magnetic Drill Collar 2016-10-14
  • Non-magnetic Drill Collars are made with low magnetic stainless alloy steel by combining prietary chemical analysis and a hamer forging process. The material is resistant to stress corrosion cracking. with high mechanical properties, low magnetic per...
  • Beijing Tengyue Technology Co.,Ltd BeiJing Province,China
Spiral Drill Collar
  • Spiral Drill Collar 2016-10-14
  • Sprial drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from differential pressure. Spiral drill collars are manufactured strictly according to the standard of API Spec7-1 and SY/T5144. Technical specific...
  • Beijing Tengyue Technology Co.,Ltd BeiJing Province,China
Integral Spiral Heavy Weight Drill Pipe
Heavy weight drill pipe
  • Heavy weight drill pipe 2016-10-14
  • Heavy weight drill pipe are made with material AISI 4145H in accordance with API Spec 7-1. We supply full API size range of heavy weight drill pipes from 2-3/8 to 6-5/8 inches. Our heavy weight drill pipes include integral heavy weight drill pipes an...
  • Beijing Tengyue Technology Co.,Ltd BeiJing Province,China
kelly
  • kelly 2016-10-14
  • We supply square Kellys and Hexagonal kellys. Kellys are made with AISI 4145H alloy steel in accordance with API 7-1 standard. Kellys are formed by hot forged and full length heat treated by intermediate frequency induction heat treatment. We can do ...
  • Beijing Tengyue Technology Co.,Ltd BeiJing Province,China
Drill Collar
  • Drill Collar 2016-01-12
  • According to API Spec.7 and SY/T5144, drill collar is made of AISI 4145 modified chromium- molybdenum alloy steel. All threads are phosphated, comprised or cold rolled , and they are machined with CNC Lathes –Double –shoulder, including some special ...
  • Heilongjiang North Shuangjia Drilling Tools Co., L... Heilongjiang Province,China
Spiral drill collars
  • Spiral drill collars 2016-01-12
  • Based on API Spec.7 and SY/T5144, the spiral drill collars are made of 4145H modified chromium –molybdenum alloy steel. All threads are phosphated, copper zed or cold rolled. All threads machined with CNC Lathes –Double –shoulder, including some spec...
  • Heilongjiang North Shuangjia Drilling Tools Co., L... Heilongjiang Province,China
Spiral Drill Collar With Elevator Groove And Slip Groove
Drill collar
  • Drill collar 2013-02-19
  • Drill Collars Our company’s drill collars are manufactured from 4145H Modified quenched and tempered steel. After the full length special heat-treatment, a hardness range of 285 to 341 BHN are guaranteed one inch below the surface at room temperature...
  • Jiyuan Huaxin Petroleum Machinery Co., Ltd Henan Province,China
drill collar
  • drill collar 2012-11-18
  • Our company can produce 2 7/8"--14"drill collars, and based on user requirements of non-standard products. 14-inch large-size spiral drill collars developed to solve the domestic development of ultra-deep localization of key components.In a...
  • zhongyuan special steel co.,ltd Henan Province,China
spiral drill collar
  • spiral drill collar 2012-11-18
  • The company can produce 3 1 / 8 "--11" spiral drill collars, and in accordance with the requirements of users in the drill collar on the processing line with API 7-1 standard hanging slots and slip groove structure, can thread cold rolling,...
  • zhongyuan special steel co.,ltd Henan Province,China
Non magnetic drill collar
  • Non magnetic drill collar 2012-11-15
  • ZYSCO can produce 3/4″~11 ″of NMDC and others according to customers1。Melting: Materials used is smelted by our own to ensure that the precise chemical composition of the final product, while steel can reduce the content of sulfur , phosphorus and ot...
  • zhongyuan special steel co.,ltd Henan Province,China
integral Stabilizer
Non-magnetic drill collar
  • Non-magnetic drill collar 2012-10-10
  • Our products have been granted Certificate of Authority to use the Official API Monogram with license number 7-1-0622, ISO9001:2000 Certificate of Quality Management System and ISO14000 Certificate of Occupational Health and Safety Management System....
  • Oilcenter Technology Co., Ltd BeiJing Province,China
Drill Collar
  • Drill Collar 2012-10-08
  • We provide full range of slick drill collars, spiral drill collars and non-magnetic drill collars, the sizes are available from 3-1/8 to 11 inchesDrill collars are manufactured from AISI 4145H modified steel which are trepanned and drifted according ...
  • Dynoland Industrial Supply Co.,Ltd BeiJing Province,China
Drill collars
  • Drill collars 2012-10-04
  • The drill collars are made of 4145H modified chromium-molybdenum alloy steel acc. to API Spec.7. All threads can be phosphated, copperised or cold worked. All threads are machined with CNC Lathes-Double-Shouldered and a special thread, the max diamet...
  • Beijing Metalwork Technology Trade Co., Ltd. BeiJing Province,China
Drill Collar
  • Drill Collar 2012-06-12
  • The drill stem / drill string including DP (drill pipe), HWDP (heavy weight drill pipe), DC (drill collar), Kelly etc. The accessories, such as tool joint, drilling tool lifting sub, cross-over sub and so on are also available according to customers'...
  • Chance Door International Co., Ltd. Jiangsu Province,China
Drill Collar (CDDC)
  • Drill Collar (CDDC) 2012-06-12
  • The Drill Collars are made of AISI 4145 H or 4145 H Modified alloy steel. Its bore are trepanned from one direction with no mismatch. All drill collars are heat-treated with hardness within 285 to 341 BHN, which are guaranteed one inch below the surf...
  • Chance Door International Co., Ltd. Jiangsu Province,China
Drill collar
  • Drill collar 2011-06-07
  • Drill collarAPI SPEC 7-1OD: 3 1/2”-11”ID:1 1/2”-3”Connection: NC, IF,FH,REGLength: 30 feet, 31feetSlip and Elevator RecessesRelief Groove for Pin, Back Bore for BoxThread cold rolling, PhosphateHardbanding: ARNCO 100XT, ARNCO 300XT
  • Rontech Petroleum Technology Incorporated Company Jiangsu Province,China
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