Casing/cementing/zonal isolation

Design Procedure for Cementing Intercalated Salt Zones

This work demonstrates cement design that includes evaluating cement-sheath mechanical integrity in intercalated salts.

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Source: Getty Images.

Wells often require being drilled through and cemented across salt formations. In many parts of the world, salt sections consist of multiple salt types. This analysis shows that intercalated salts subject cement sheaths to a series of tensile and compressive loads whose magnitude depends on the size and relative position of different salts. The salt/salt-interface effects dominate the general tenet of increasing creep rate with increasing depth.

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