Casing In Drilling

Standard: API 5CT
Grade: H40, J55, K55, L80, L80-13Cr, L80-9Cr, N80-1, N80Q, P110
O.D: 4 1/2"~30"
Length: R1(4.88~7.62m), R2(7.62~10.36m), R3(10.36m~longer)
Connection: STC, LTC, BTC, Premium Connection (VAM TOP, NEW VAM, PH-6)
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Product Details

Casing in drilling refers to the use of casing instead of drill pipe to apply torque and drill pressure to the drill bit, to achieve the drill bit rotation and drilling. The whole drilling process no longer use drill pipe, drill collar etc.

Standard: API 5CT

Grade: H40, J55, K55, L80, L80-13Cr, L80-9Cr, N80-1, N80Q, P110

O.D: 4 1/2"~30"

Length: R1(4.88~7.62m), R2(7.62~10.36m), R3(10.36m~longer)

Connection: STC, LTC, BTC, Premium Connection (VAM TOP, NEW VAM, PH-6)

Chemical Components (%)and Mechanical property

class

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Chemical Components (%)

Mechanical property

C


Mn


Mo


Cr


Ni

Cu

P

S

Si

Yield Strength     (Mpa)

Tensile Strength (Mpa)   

Hardness

Min

Max

Min

Max

Min

Max

Min

Max

Max

Max

Max

Max

Max

Min

Max

Min

HRC

HBW/HBC

H40

0.030

0.030

276

552

414

J55

0.030

0.030

379

552

517

K55

0.030

0.030

379

552

655

N80

1

0.030

0.030

552

758

689

Q

0.030

0.030

552

758

689

M65

0.030

0.030

448

586

586

22

235

L80

9Cr

0.15

0.30

0.60

0.90

1.10

8.00

10.00

0.50

0.25

0.020

0.010

1.00

552

655

655

23

241

13Cr

0.15

0.22

0.25

1.00

12.00

14.00

0.50

0.25

0.020

0.010

1.00

552

655

655

23

241

C90

1

0.35

1.00

0.25

0.75

1.20

0.99

0.020

0.010

621

724

689

25.4

255

T95

1

0.35

1.20

0.25

0.85

0.40

1.50

0.99

0.020

0.010

655

758

724

25.4

255

P110

0.030

0.030

758

965

862

Casing in drilling mainly used for the drilling of oil and gas wells, the transportation of oil and gas, and the support of the well wall during and after drilling to ensure the progress of the drilling process and the normal operation of the entire oil well after completion. It is also the lifeline for maintaining the operation of oil wells.

JDSTEELPIPE is a professional supplier of high quality casing in drilling. If you have some planning or inquiries, email info@jiade-group.com.


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