Casing pipe is the major structural component of a well. Casing pipe lines the borehole. It is subject to axial tension

by its dead weigh, internal pressure by fluid purging, and external pressure by surrounding rock formations.

Casing pipe is particularly exposed to axial tension and internal pressure by the pumped oil or gas emulsion.

Casing pipe is needed to: Maintain borehole stability

Tag:API 5CT Oil well casing pipe

Item		Tolerances
Outside Diameter	Pipe Body	D≤101.6mm +0.79mm
		D≥114.3mm +1%            -0.5%
	Coupling	±1%
Wall Thickness		-12.5%
Weight	Single Lengths	+6.5% ~ -3.5%
	Carload Lots	-1.75%

Casing pipe is the conduit through which oil and gas are brought from the producing formations to the field surface facilities fr processing.

Tubing must be adequately strong toresist loads and deformations associated with production and work overs. Further, tubing must be sized

to support the expected test of production of oil and gas. 




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