seamless api oil casing pipe in china

Inserted into a wellbore and cemented in place, oil casing is a large-diameter pipe that plays an integral role in stabilizing the walls of oil and gas wells while also keeping drilling fluid in circulation and enabling critical extraction operations. Effectively functioning as a structural anchor, it is essential to the safety and sustainability of the wellbore below the surface.

Steel is used to construct oil casing, the name indicating its susceptibility to corrosion from the well environment. Therefore, a coating such as plastic or brass is applied to the steel casing for defensive protection. For increased defense against corrosion, a liner of corrosion-resistant material may be employed as an additional safeguard for the steel casing.

A range of oil casing sizes is available, from small 4.5 inch (114.3 mm) tubes to large, 31 inch (787.4 mm) varieties. The most suitable length for any particular well is based on its depth and the weight of casing that is necessary to lend stability to the borehole walls.

The oil drilling and extraction process would not run smoothly without the presence of oil casing, which helps carry out applications in shallow to deepwater wells.


Post time: 2023-06-21

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