Drill Collar

As an important part of drill string, drill collar can supply the drill bit and increase the rigidity of drill string. Dril collar are manufactured strictly according to API Spec7-1 standard with material of AISI 4145 Mod. We supply slick drill collars, spiral drill collars, etc. The size of drill collar we can provide is from 3.1/8 to 11 inches. We can also provide other drill collars at customers' specific request .

Description

Specifications

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Description

Product Details

⊙First class equipment could guarantee the whole process flow and the clave process be more efficient like heat treating and friction welding.

⊙Meet the international requirement of the API 5DP, API 7G, & ISO 9001;

⊙Advanced and strict inspection instruments could guarantee the high quality product with a more stable performance.

Specifications

Item Name Spiral or Slick O.D I.D Tool joint Bevel diameter in Material Overall length
in in Connection ft
1 Drill collar Slick or Spiral 3.1/8 1.1/4 NC26 2.3/8"IF 3 4145H 30 or 31
2 Drill collar Slick or Spiral 3.1/2 1.1/2 NC26 2.3/8"IF 4145H 30 or 31
3 Drill collar Slick or Spiral 4.1/8 2 NC31-41 2.7/8"IF 3.61/64 4145H 30 or 31
4 Drill collar Slick or Spiral 4.3/4 2 NC35-47 4.33/64 4145H 30 or 31
5 Drill collar Slick or Spiral 5 2.1/4 NC38-50 3.1/2"IF 4.49/64 4145H 30 or 31
6 Drill collar Slick or Spiral 6 2.1/4 NC44-60 5.11/16 4145H 30 or 31
7 Drill collar Slick or Spiral 6 2.13/16 NC44-60 5.11/16 4145H 30 or 31
8 Drill collar Slick or Spiral 6.1/4 2.1/4 NC44-62 5.7/8 4145H 30 or 31
9 Drill collar Slick or Spiral 6.1/4 2.13/16 NC46-62 4"IF 5.29/32 4145H 30 or 31
10 Drill collar Slick or Spiral 6.1/2 2.1/4 NC46-65 4"IF 6.3/32 4145H 30 or 31
11 Drill collar Slick or Spiral 6.1/2 2.13/16 NC46-65 4"IF 6.3/32 4145H 30 or 31
12 Drill collar Slick or Spiral 6.3/4 2.1/4 NC46-67 4"IF 6.9/32 4145H 30 or 31
13 Drill collar Slick or Spiral 7 2.1/4 NC50-70 4.1/2"IF 6.31/64 4145H 30 or 31
14 Drill collar Slick or Spiral 7 2.13/16 NC50-70 4.1/2"IF 6.31/64 4145H 30 or 31
15 Drill collar Slick or Spiral 7.1/4 2.13/16 NC50-72 4.1/2"IF 6.43/64 4145H 30 or 31
16 Drill collar Slick or Spiral 7.3/4 2.13/16 NC56-77 7.19/64 4145H 30 or 31
17 Drill collar Slick or Spiral 8 2.13/16 NC56-80 7.31/64 4145H 30 or 31
18 Drill collar Slick or Spiral 8.1/4 2.13/16 6.5/8"REG 7.45/64 4145H 30 or 31
19 Drill collar Slick or Spiral 9 2.13/16 NC61-90 8.3/8 4145H 30 or 31
20 Drill collar Slick or Spiral 9.1/2 3 7.5/8"REG 8.13/16 4145H 30 or 31
21 Drill collar Slick or Spiral 9.3/4 3 NC70-97 9.5/32 4145H 30 or 31
22 Drill collar Slick or Spiral 10 3 NC70-100 9.11/32 4145H 30 or 31
23 Drill collar Slick or Spiral 11 3 8.5/8"REG 10.1/2 4145H 30 or 31
Note: If the cliente has any special requerimente, for example compound,cold rolling,make and break,hard banding (ARNCO 100XT ARNCO 300XT etc), internal coating (TK34 TK34PTC2000, etc),Stress- Relief Pin, Bored  Back Box,Elevator Recess, slip Recess please feel free to contact us.

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