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What is Surface Casing

Views: 1     Author: Ruiyang company     Publish Time: 2021-08-27      Origin: SHAANXI RUIYANG IMPORT AND EXPORT CO.,LTD

What is Surface Casing?

It is a steel pipe,usually large-diameter,relatively low-pressure pipe,with a pipe string set first in shallow in a wall,to act as a protective shield to preserve the water aquifers in the region. The Surface Casing is done before the drilling process is started, so that the blowout preventer system can be installed. It also helps in installing the tubing and deep casing strings, and prevents a condition known as lost circulation. It is also known as a surface pipe.yet competent formations to protect fresh-water aquifers onshore.

Second, the surface casing provides minimal pressure integrity, and thus enables a diverter or perhaps even a blowout preventer to be attached to the top of the surface casing string after it is successfully cemented in place.

Third, the surface casing provides structural strength so that the remaining casing strings may be suspended at the top and inside of the surface casing.

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