Casing is a large-diameter pipe that serves as the structural retainer for the walls of oil and gas wells, or wellbore. 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.
OD:4 1/2"~20"WT:5~15.9mm
Length:5.5~22.23m and some different sub joints.
Steel Grade: H40J55K55N80L80C95C90P110Q125
Standard:API SPEC 5CT and 5B, SY/T6194 etc.
Our company can according to customer requirements, provide relevant coupling, thread protectors and other products.
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