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Spiral Drill Collar With Elevator Groove And Slip Groove

Spiral Drill Collar With Elevator Groove And Slip Groove
  • Spiral Drill Collar With Elevator Groove And Slip Groove
Produced by: RUGAO YAOU IMPORT & EXPORT CO., LTD

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Elevator groove and slip groove made on box thread face of slick drill collar or spiral drill collar can be used as lifting sub and safety slip when trip out. The technical parameters for elevator groove and slip groove is as per API spec7-1. Hard banding is optional at customers requests.

Technicalspecificationsandparameters

DrillCollarrangesO.D.(mm)

Elevatorgroovedepth(mm)

Elevatorgroovelength(mm)

Slipgroovedepth(mm)

Slipgroovelength(mm)

101.6~117.5

5.6

406

4.8

457

120.6~142.9

6.4

406

4.8

457

146.0~168.3

7.9

406

6.4

457

171.4~219.1

9.5

406

6.4

457

>=222.2

11.1

406

6.4

457

Size

TubeOD
(+1/16,-1/32)

TubeOD1

ToolJointOD
(+1/16,-1/32)2

Tool
JointOD
(+1/8,-0)

Connection

Max
Elevator
UpsetDia

Center
Upset
Dia
(+1/16,-1/32)

Min
Drift
Dia3

Deu

Dcu

31/2

31/2

21/4

43/4
(47/8,5)

21/4

NC38

37/8

4

2

21/16

21/16

113/16

4

4

21/2

51/4

21/2

NC40

43/16

41/2

21/4

29/16

29/16

25/16

41/2

41/2

211/16

61/4

211/16

NC46

411/16

5

27/16

23/4

23/4

21/2

213/16

213/16

29/16

5

5

3

65/8

3

NC50

51/8

51/2

23/4

51/2

51/2

31/4

7
(71/4,71/2)

31/4

51/2FH

511/16

6

3

33/8

33/8

31/8

37/8

37/8

35/83/4

4

4

33/4

65/8

65/8

4

8
(81/4,81/2)

4

65/8FH

615/16

71/8

33/4

41/2

41/2

41/4

5

5

43/4

1.MaximumtubeIDis1/8largerthannominal.MinimumtubeIDiscontrolledbythedriftrequirement.
2.OptionalToolJointODsshowninparenthesis,tobeagreedbetweenpurchaserandmanufacturer.
3.DriftDiameterisbasedonIDtolerancesofheavywallpiercedtubeusedforthecentersection.


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