Casing wear and solutions
Casing wear is very important as it effects the system integrity. A casing scheme is designed based on the properties of the chosen casing. Casing wear changes the thickness of casing walls and therefore changes its properties related to its capability to withstand the various loads exerted on it. This should be taken into consideration when designing wells.
The culprits which cause casing wear are, rotation, geometry of the well, drillpipe tension, etc. From this it can be seen that platform wells and deep wells are especially prone. Also axial misalignment of wellhead . . .