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Kelly

Categories Oil Pipes and Drilling
Place of Origin: China
Brand Name: http://www.petroleum-equipments.com
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Kelly

Kelly

Catalog:

Oil drilling

Keywords:

Kelly

Kelly details

1, All products accord with API SPEC 5D & API 7 standard, and we get the right to use the API 5D & API 7 LOGO.
2, Type: Square Kelly; Hexagonal Kelly
3, Steel Grade: AISI 4145 H
4, Size: Square Kelly OD (2 1/2--6), Hexagonal Kelly OD (3 1/2--6); ID (1 3/4--3 1/2); Length (40)
5, Cold rolling of thread roots
6, Stress relief groove
7, Thread surface process: Phoscoating or Copperize process treatment.
8, Cast steel thread protector
9, Delivery Condition: Forged Bar; Semi-finished; Finished Kelly.

Kellys are made from 4145H modified alloy steel in accordance with API Spec.7-1 latest edition, which are quenched and tempered along full length. A hardness range of 285 to 341 BHN and a minimum impact value of 54 Joules as per ASTM A 370 Charpy-V, these values are guaranteed one inch below the surface. kelly bars are inspected by an ultrasonic unit over their full length and full section. The wall thickness of each flat of the drive section is verified ultrasonically. All kellys' connectons are fitted with pressed steel thread protectors on both ends and each kellys would be shipped with steel scabbard for marine transportation.

Specification for Square Kelly


Nom Size
(in)

Lengths
(ft)

Top Upset Joint

Bottom Upset

Bore

Drive Section

Weight
(kg)

Standard

Optional

A

B

LH Connection

OD C

LH Connection

OD C

RH Connection

OD D

E

F

G

Standard

Optional

(in)

(in)

(in)

(in)

(in)

(in)

2 1/2

40
46

37
43

6 5/8 Reg

7 3/4

4 1/2 Reg

5 3/4

NC26
(2 3/8 IF)

3 3/8

1 1/4

3 1/4

2 1/2

410
465

360
420

3

40
46

37
43

6 5/8 Reg

7 3/4

4 1/2 Reg

5 3/4

NC31
(2 7/8 IF)

4 1/8

1 3/4

3 7/8

3

495
560

450
515

3 1/2

40
46
54

37
43
51

6 5/8 Reg

7 3/4

4 1/2 Reg

5 3/4

NC38
(3 1/2 IF)

4 3/4

2 1/4

4 3/7

3 1/2

600
670
780

555
630
730

4 1/4

40
46
54

37
43
51

6 5/8 Reg

7 3/4

4 1/2 Reg

5 3/4

NC46(4 IF)orNC50(4 1/2 IF)

6or6 3/8-6 1/2

2 4/5

5 1/2

4 1/4

825
940
1070

780
890
1040

5 1/4

40
46
54

37
43
51

6 5/8 Reg

7 3/4

--

--

NC50or
5 1/2 FH orNC56

7

3 1/4

6 3/4

5 1/4

1250
1430
1670

--

6

40
46
54

37
43
51

6 5/8 Reg

7 3/4

--

--

6 5/8 FH

8

3 1/2

7 5/8

6

1670
1920
2250

--


Specification for Hex kellys


Nom Size
(in)

Lengths
(ft)

Top Upset Joint

Bottom Upset

Bore

Drive Section

Weight
(kg)

Standard

Optional

A

B

LH Connection

OD C

LH Connection

OD C

RH Connection

OD D

E

F

G

Standard

Optional

(in)

(in)

(in)

(in)

(in)

(in)

3

40
46

37
43

6 5/8 Reg

7 3/4

4 1/2 Reg

5 3/4

NC26
(2 3/8 IF)

3 3/8

1 1/4

3.375

3

450
500

400
555

3 1/2

40
46
54

37
43
51

6 5/8 Reg

7 3/4

4 1/2 Reg

5 3/4

NC31
(2 7/8 IF)

4 1/8

1 3/4

3.937

3 1/2

580
670
780

535
620
730

4 1/4

40
46
54

37
43
51

6 5/8 Reg

7 3/4

4 1/2 Reg

5 3/4

NC38
(3 1/2 IF)

4 3/4

2 1/4

4.781

4 1/4

750
840
980

700
800
940

5 1/4

40
46
54

37
43
51

6 5/8 Reg

7 3/4

--

--

NC46(4 IF)orNC50(4 1/2 IF)

6or6 3/8-6 1/2

2 13/16or3 1/4

5.9

5 1/4

1020
1170
1350

--

6

40
46
54

37
43
51

6 5/8 Reg

7 3/4

--

--

NC50or
5 1/2 FH orNC56

7

3 1/2

6.812

6

1320
1500
1770

--

Contact us today .

http://www.petroleum-equipments.com

energy@savegreeninc.com

Product Tags:

oil drilling

  
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