• Q345R steel
  • 16Mo3 steel
  • A283GradeC steel
  • A516Grade70 steel
  • A572Grade50 steel
  • cortenA steel

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Ministry of Commerce of the P.R.China China Commodity Net

Casing is a large diameter pipe that serves as the structural retainer for the walls of oil and gas wells, or well bore. It is inserted into a well bore and cemented in place to protect both subsurface formations and the wellbore from collapsing and to allow drilling fluid to circulate and extraction to take place.

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Ministry of Commerce of the P.R.China China Commodity Net

Range LengthR1 (6.10 7.01metres), R2 (8.84 9.75metres), R3 (12.19 13.72metres) Drill pipes are steel tubes with threaded ends that are used to connect a drill rigs surface equipment with its drilling equipment, or bottomhole assembly, at the bottom of a well.

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