Uses of inflatable packers in mining
Casing in Oil Well Construction Casing strings are among the main parts of oil well drilling. The casing is majorly needed to ensure the stability of the borehole, to prevent the sand from being contaminated, to isolate or separate water from the produced formations, and to control the pressures of the well during the process of drilling and other operations during the drilling process. Casing in oil wells is installed in layers. There are different types of casing strings that are used while drilling. They are surface casing, casing liner, conductor casing, intermediate casing, casing liner, and production casing. The material used for the casing is carbon steel, and a repair in the casing can be done using casing repair packers, which ensures that the casing integrity is restored. The casing costs are among the most important in the well cost, so the factors like the casing size, connectors, grade and setting depth should be considered while the casing is done for wells.