DRILL COLLAR GRADE PUP JOINTS

OTI Pup Joints are machined from integral bars of chromium molybdenum alloy steel; heat treated to drill collar specifications. Pup Joints are available in 10’, 15’ and 20’ lengths and can be ordered to match standard drill pipe dimensions. The primary use of the Pup Joints is to adjust the overall length of the drill string to land at a specific depth while staying within the working area of the Kelly. The following table provides a more detailed description of Drill Pipe Pup Joints specifications –

Sleeve Type Stabilizer

PUP JONTS – DIMENSIONAL DATA

Drill Pipe Nominal Size

Inside Diameter

Tool Joint Diameter

Connection Type & Size

Elevator Upset Diameter

Tong Space Lengths

Available Lengths

Approx. Wt.
(lbs.)

BOX

PIN

3-1/2

2-3/8

4-3/4

NC38
(3-1/2 IF)

3-7/8

10-1/2

8

5
10
15
20

143
224
310
394

5

3-1/2

2-11/16

4-3/4

NC38
(3-1/2 IF)

3-7/8

10

7

5
10
15
20

132
198
200
332

5

4

2-13/16

5-1/4

NC40
(4 FH)

4-3/16

10

7

5
10
15
20

178
286
394
502

5-1/2

4

3-1/4

5-3/4

NC46
(4 IF)

4-1/2

10

7

5
10
15
20

167
242
312
365

6

4-1/2

3-1/2

6

NC46
(4 IF)

4-11/16

10

7

5
10
15
20

220
348
477
607

5-1/4

4-1/2

3-1/2

6-1/8

NC50
(4-1/2 IF)

5

10

7

5
10
15
20

205
310
418
524

6-1/4

6-3/8

4-1/2

3-3/4

6-1/8

NC50
(4-1/2 IF)

5

10

7

5
10
15
20

161
264
345
429

6-1/4

6-3/8

5

3-1/2

6-3/8

NC50
(4-1/2 IF)

5-1/8

10

7

5
10
15
20

253
422
594
763

6-1/2

5

3-3/4

6-3/8

NC50
(4-1/2 IF)

5-1/8

10

7

5
10
15
20

229
374
519
664

6-1/2

Note:All dimensions are in inches unless stated otherwise. All weights are approximate.

FEATURES AND BENEFITS:

When ordering or requesting quotations on Lift Plugs, please specify the following –

  1. Nominal Size,
  2. Bore ID,
  3. Tool Joint Diameter,
  4. Length,
  5. Size, Type and Location of Connections – (Eg: NC50 Box-Up x NC50 Pin-Down),
  6. Tapered or Squared Shoulder,
  7. Cast or pressed steel thread protectors