High Quality Smooth Drill Collar - China

Product Description

The smooth drill collar produced with international quality system certifications is the most important component of bottom hole assembly.

It provides weight on the bit and offers great help to stabilize the drill and keeps it in tension.

It is basically the same as that of regular drill collar, except that the outer surface is smooth and there is no spiral, no elevator.

For Longway's detailed product information and custom drill collar specifications, welcome to contact us!

Drill Collar Number outside diameter Rnre Diameter Round Number Lehgth.

ft ±6in NC23-31 31/8 (79-4) 1 1/4 (31.8) 2.57 1 30

NC26-35 (2-3/8 IF) 31/2 (88.9) 1 1/2 (38.1) 2.42 1 30

NC31-41 (2 7/8 IF) 41/4 (104.8) 2 (50.8) 2.43 1 30 or 31

NC35-47 4 3/4 (120.7) 2 (50.8) 2.58 1 30 or 31

NC38-50 (3 1/2 IF) 5 (127.0) 21/4 (57.2) 2.38 1 30 or 31

NC44-60 6 (152.4) 21/4 (57.2) 2.49 1 30 or 31

NC44-60 6 (152.4) 213/16 (71.4) 2.84 1 30 or 31

NC44-62 61/4 (158.8) 21/4 (57.2) 2.91 1 30 or 31

NC46-62 (4 IF) 61/4 (158.8) 213/16 (71.4) 2.63 1 30 or 31

NC46-65 (4 IF) 61/2 (165.1) 21/4 (57.2) 2.76 1 30 or 31

NC46-65 (4 IF) 61/2 (165.1) 213/16 (71.4) 3.05 1 30 or 31

NC46-67 (4 IF) 6 3/4 (171.5) 21/4 (57.2) 3.18 1 30 or 31

NC50-67 (41/2 IF) 6 3/4 (171.5) 213/16 (71.4) 2.37 1 30 or 31

NC50-70 (4 1/2 IF) 7 (177.8) 21/4 (57.2) 2.54 1 30 or 31

NC50-70 (4 1/2 IF) 7 (177.8) 213/16 (71.4) 2.27 1 30 or 31

NC50-72 (4 1/2 IF) 71/4 (184.2) 213/16 (71.4) 3.12 1 30 or 31

NC56-77 7 3/4 (196.9) 213/16 (71.4) 270 1 30 or 31

NC56-80 8 (203.2) 213/16 (71.4) 3.02 1 30 or 31

6 5/8REG 81/4 (209.6) 213/16 (71.4) 293 1 30 or 31

NC61-90 9 (228.6) 213/16 (71.4) 3.17 1 30 or 31

7 5/8REG 91/2 (241.3) 3 (76.2) 2.81 1 30 or 31

NC70-97 9 3/4 (247.7) 3 (76.2) 2.57 1 30 or 31

NC70-100 10 (254.0) 3 (76.2) 2.81 1 30 or 31

8 5/8 REG 11 (279.4) 3 (76.2) 2.84 1 30 or 31

Company Contact:

• Posted By: Hebei Longway Petroleum Equipment Co.,Ltd

• Phone: 18709187218

• Address: https://www.longwaydp.com/, Shijiazhuang City, Hebei Sheng, China

• Email:

• Website: https://www.longwaydp.com/

• Business Description: Hebei longway petroleum equipment Co., Ltd. Is a professional petroleum equipment manufacturing enterprise integrating the design, manufacture, testing and maintenance of oil drilling tools.
  
  Company has the international leading American MTI friction welding machine, domestic biggest friction welding machine, domestic medium-sized friction welder three friction welding production lines, such as the NOV production of pipe end upset thickening machine, fully automatic hydraulic upsetting machine two more upsetting production line, such as van automatic tube body integral whole heat treatment furnace, heat treatment furnace, box type joint joint forging, the slant bed lathe numerical control joint, shackle, cold rolling, deep hole drilling, long lathe, large straightening machine, wear-resisting belt apply welding machine, ultrasonic testing, magnetic particle flaw detection machine, joint magnetic particle testing machine, hardness testing machine and other equipment.