casing
Quick Summary
The term "casing" in the context of excavation and wells refers to a tubular lining or apparatus. This lining, known as well casing, is crucial for the structural integrity of a bored or drilled well, particularly in oil well operations. It prevents the well walls from collapsing and can also be used as the drilling apparatus itself.1
Additionally, specialized tools exist for working with well casing, such as a casing dog or casing spear, which is used to remove sections of casing from a well. The term "ground casing" refers to an unfinished casing for a window that acts as a plaster ground.23
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petroleum productionCasingModern wells are not drilled to their total depth in a continuous process. Drilling may be stopped for logging and testing (see below Formation evaluation), and it may also be stopped to run (insert) casing and cement it to the outer circumference of the…
Read MoreModern wells are not drilled to their total depth in a continuous process. Drilling may be stopped for logging and testing (see below Formation evaluation), and it may also be stopped to run (insert) casing and cement it to the outer circumference of the…
Read More- petroleum productionProduction tubing
First, the casing is completed to the bottom of the well. Cement is then forced into the annulus between the casing and the borehole wall to prevent fluid movement between formations. As mentioned earlier, this casing may be made up of progressively smaller-diameter tubing, so that the…
Read MoreFirst, the casing is completed to the bottom of the well. Cement is then forced into the annulus between the casing and the borehole wall to prevent fluid movement between formations. As mentioned earlier, this casing may be made up of progressively smaller-diameter tubing, so that the…
Read More