Casing & Tubing
Casing & Tubing
Standard：
API SPEC 5CT Standard of American Petroleum Institute Steel Grade:
J55, K55, N80, L80, N80-1, N80Q P110 etc．Diamensional tolerances:
Types of steel tubes Outer diameter Wall thickness
Cold-rolled tubes Tube sizes
(mm) Tolerances(mm) Tolerances(mm)
＜114.3 ±0.79 －12.5％
≥114.3 －0.5％，＋1％
Mechanical properties：
Standard codes Models of steel tubes Tensite strength（MPa） Yield strength（MPa） Elongation（％） Hardness
API SPEC 5CT J55 ≥517 379～552 check the table
K55 ≥517 ≥655
N80 ≥689 552～758
L80(13Cr) ≥655 552～655 ≤241HB
P110 ≥862 758～965
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Rotary Table |
Design Features：
Gear and pinion are made of alloy steel
Split main bushing is steel cast. Kelly drive and slip drive are available for choose.
S... |
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Heavy Weight Drill Pipe |
Heavy Weight Drill Pipe
Integral or Weld Heavy Weight Drill Pipe
Standard: API Spec 7
Specification: OD 3 1/2”, 4 1/2”, 5”, 5 1/2”
Material: AI... |
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Taper tap |
Taper tap
Taper tap is an internal catch fishing tool designed to retrieve tubular members from the well bore. It is the most economical tool of it... |
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Casing & Tubing |
Standard：
API SPEC 5CT Standard of American Petroleum Institute
Steel Grade:
J55, K55, N80, L80, N80-1, N80Q P110 etc．
Diamensional to... |
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Safety Clamps |
Safety Clamps are the essential hold-up device for drilling string and drill tools. When adjusting the working range, it only needs to reassemble c... |
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