United Kingdom: Operator found new centralizers and simulation software beneficial ///

Unique simulation software proved to be an important factor in the success of BHP Billiton’s casing operation in Lennox field in the East Irish Sea basin, Fig. 1. The program – used by UK centralizer manufacturer Centek Ltd. – enabled the company to provide accurate load prediction and to optimize the distribution of 110 centralizers along the casing string. According to BHP Billiton drilling engineer Dominic Murphy, “The centralization program gave a minimum 73% casing stand-off in 12.9-in. hole. Casing was run without any problems. The use of these bow spring centralizers gave the benefit of providing greater stand-off in over-gauge hole while being at least as robust as a solid centralizer.”

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