Taishun Energy Technology Development Co., Ltd.

Taixing City, Jiangsu Province, 225401, P.R. China

Mobil: 15961036326 Email: yrs71@163.com

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CNPC SINOPEC CNOOC API

Jiangsu Taishun Energy Technology Development Co., Ltd. is a manufacturer specialize in API 5CT tubing or seamless tubing, casing, pup joints, crossovers, tubing couplings and casing couplings

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Pup Joints

Pup joint is used to adjust height of tubing or casing strings or depth of down-hole tools, and these pup joints are made of seamless steel pipes. Pup joint can be available with tubing pup joint or casing pup joint, and material for pup joint can be available in J55, K55, N80, L80 or P110, sizes of tubing pup joint range from 2⅜” to 4½”, and casing pup joint range from 4½” to 13⅜”, thread of pup joint can be 8RD, 10RD or BTC, length of tubing pup joint are often offered in 2ft, 3ft, 4ft, 6ft, 8ft, 10ft and 12ft, length of pup joint for special purpose can be available as per order. Pup joints are machined with interchangeable Pin & Box thread on two ends or other configuration, one end is equipped with coupling, and another end is protected with closed end thread protector. Nominal weight of tubing pup joint is the same as tubing, and casing pup joint is the same as casing.

Tubing pup Joint

Tubing pup joints are desiged and manufactured as per API 5CT to be used be adjust height of tubings, and tubing pup joints are made of seamless steel tubings. Material grade of tubing pup joint can be avalialbe in J55, K55, N80, L80 or P110, sizes of tubing pup joint range from 2⅜” to 4½”, thread of pup joint can be 8RD, 10RD or BTC, and end connection types can be NUE and EUE. length of tubing pup joint are often offered in 2ft, 3ft, 4ft, 6ft, 8ft, 10ft and 12ft, length of pup joint for special purpose can be available as per order. Tubing pup joints are machined with interchangeable Pin & Box thread on two ends or other configuration, one end is equipped with coupling, and another end is protected with closed end thread protector. Nominal weight of tubing pup joint is the same as tubing. Tubing pup joints are internally and externally hydrostatic tested with tension and compression loads, and torque tested, electromagnetically inspected, pup joint is full-body drift and straightness visual inspected, and phosphated and dye-penetrant inspected. and finally painted by machine to ensure excellenct appearance. Finished tubing pup joints are often packed by steel belts in bundles, and then fixed in steel rack for easy transportation.

pup joint

Details of tubing pup Joint

Tubing pup Joints specifications

Mechanical properties of pup joints with material grade of J55 and N80

OD

Grade

End Type

Outside diameter

(mm)

Wall thickness

(mm)

2⅜”

J55/K55/N80/L80/P110

NUE/EUE

67

8

2⅞”

J55/K55/N80/L80/P110

NUE/EUE

80

9

3½”

J55/K55/N80/L80/P110

NUE/EUE

96

10

4½”

J55/K55/N80/L80/P110

NUE/EUE

122

11

Standard

Steel Grade

Yield Strength

(MPA)

Tensile Strength

(MPA)

Elongation

min

max

min

API 5CT

J55

379

552

517

0.5

N80

552

758

689

0.5

Casing pup joint

Casing pup joints are desiged and manufactured as per API 5CT to be used be adjust height of casings, and casing pup joints are made of seamless steel casings. Material grade of casing pup joint can be avalialbe in J55, K55, N80, L80 or P110, sizes of casing pup joint range from 4½” to 13⅜”, thread of pup joint can be 8RD, 10RD or BTC, length of tubing pup joint are often offered in 2ft, 3ft, 4ft, 6ft, 8ft, 10ft and 12ft, length of pup joint for special purpose can be available as per order. Casing pup joints are machined with interchangeable Pin & Box thread on two ends or other configuration, one end is equipped with coupling, and another end is protected with closed end thread protector. Nominal weight of casing pup joint is the same as casing. Casing pup joints are internally and externally hydrostatic tested with tension and compression loads, and torque tested, electromagnetically inspected, pup joint is full-body drift and straightness visual inspected, and phosphated and dye-penetrant inspected. and finally painted by machine to ensure excellenct appearance. Finished casing pup joints are often packed by steel belts in bundles, and then fixed in steel rack for easy transportation.

pup joint for casing

Details of casing pup Joint

Casing pup Joints specifications

Mechanical properties of pup joints

OD

Grade

Thread Type

4½”

J55/K55/N80/L80/P110

LTC/STC/BTC

5”

J55/K55/N80/L80/P110

LTC/STC/BTC

5½”

J55/K55/N80/L80/P110

LTC/STC/BTC

6⅝”

J55/K55/N80/L80/P110

LTC/STC/BTC

7”

J55/K55/N80/L80/P110

LTC/STC/BTC

7⅝”

J55/K55/N80/L80/P110

LTC/STC/BTC

7½”

J55/K55/N80/L80/P110

LTC/STC/BTC

8⅝”

J55/K55/N80/L80/P110

LTC/STC/BTC

9⅝”

J55/K55/N80/L80/P110

LTC/STC/BTC

10½”

J55/K55/N80/L80/P110

LTC /BTC

11½”

J55/K55/N80/L80/P110

LTC /BTC

13⅜”

J55/K55/N80/L80/P110

LTC /BTC

Grade

Yield Strength

Tensile Strength

Min

Max

Min

Psi

MPA

Psi

MPA

Psi

MPA

J55

55000

379

80000

552

75000

517

K55

55000

379

80000

552

95000

655

N80

80000

552

110000

758

100000

689

L80

80000

552

95000

655

95000

655

P110

110000

758

140000

965

125000

862

 

The information of our products listed in this website is provided in line with API Specifications and China's National Standards, description for any product can help readers make their own decisions.

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