HomePage Introduction Quality Assurance Market Services Inquiry Online Contact Us
 
PRODUCT INFORMATION
 
 
    Drilling Rig & Rig Parts
    Downhole Tools
    OCTG
    Wellhead Equipment
    Handing Tools & Power Tong
    Featured Products
 
CONTACT US
 
 
Tel: 0086-29-62827813
0086-29-62827812
Fax: 0086-29-62827812
Email:
sales@scotonoilfield.com
scotonbabala@hotmail.com
 
 
 
 
 
 
 
Product Show
Kelly

SCOTON 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. SCOTON 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

404654

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

404654

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

--

 
 
Copyright©2015 Scoton Oilfield All Right Reserved