What is the use of oil casings?

What is the use of oil casings? Oil casing is the lifeline for maintaining oil well operations. Due to different geological conditions, the state of the downhole is complicated, and the combined action of tension, compression, bending and torsion stress acts on the pipe body, which puts high requirements on the quality of the casing itself. Once the casing itself is damaged for some reason, it may result in a reduction in production and even scrapping of the entire well.
Steel grades for oil casings: H40, J55, K55, N80, L80, C90, T95, P110, Q125, V150, etc. Casing end machining form: short round thread, long round thread, trapezoidal thread, special buckle, etc. It is mainly used for oil well drilling mainly for supporting the well wall during and after drilling to ensure the drilling process and the normal operation of the entire well after completion.
The oil casing is a large-diameter pipe that acts as a fixed oil and gas well wall or wellbore. The casing is inserted into the wellbore and fixed with cement to prevent the wellbore from separating the formation and the wellbore from collapsing, and to ensure that the drilling mud circulates for drilling.

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Post time: May-31-2019
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