Description
Casing is used for lining the complete borehole which has been dug into the ground to procure oil. Similar to the drill pipe, the oil well casing pipe is also subjected to axial tension, therefore they are required to be made from high-quality strong steel material. OCTG casing is large diameter pipe which are held in place in the borehole using cement.
The diameters of OCTG casing pipe range from 4.5″ to 36″. The well-cemented pipe acts as the structural component of the well and offer hole integrity. They prevent the well from collapsing when the drilling process is on. Good quality, well cemented casing can stay in place for the whole life of the well.
Tubing is inserted inside the wellbore through the oil well casing pipe, which helps the transportation of the hydrocarbons to the surface. It is pipe either used for transporting natural gas or crude oil to the facilities for further processing after the drilling is complete. Similar to the drill pipe and casing, tubing also is subjected to high pressure during the extraction process, and hence needs to be thick, strong and sturdy. Production tubing is available in various sizes ranging from ¾” to 4 ½”.
Casing sizes:
Sizes: 13-3/8” thru 4-1/2” Casing
Grades: J-55, L-80, N-80, And P-110
Range: Range 1 thru Range 3
Connections: BTC, STC, LTC, NUE, EUE
Bands: White, Yellow, Blue, and Green
Tubing sizes:
Sizes: 4-1/2” thru 2-1/16”
Grades: J-55, L-80, N-80, And P-110
Range: Range 2
Connections: BTC, STC, LTC, NUE, EUE
Bands: White, Yellow, Blue, and Green
