Wellhead growth index aids multistring casing design

A newly developed Wellhead Growth Index (WHI) allows engineers to design multistring casings more effectively.WHI, which encapsulates annular fluid expansion, provides a simple, practical way to view the severity of the wellhead movement during drilling as well as in the production phase of the well.This practical index not only helps to quantify the design of the casings under different loads but also increases the cost effectiveness of the casing design.Due to increased deepwater operations, use of tension-leg platforms, and the drilling of high-temperature, high-pressure wells, it has become necessary to add more casing design parameters. Numerous variables can be taken into account wi...

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