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Unformatted text preview: Macondo well spilled close to five million barrels of oil into the Gulf of Mexico during 87 days between the blowout and when the well was successfully capped on July 15, 2010. After months of additional intervention work, the well was permanently sealed on September 19, 2010. 24 II. Well Design Well design is a fundamental and important phase of offshore drilling operations. Operators must consider site‐specific factors, including flows, pressurized formation flows, reservoir natural gas and oil type, reservoir lithology (formation characteristics), reservoir structure, and the anticipated volume of hydrocarbons to determine the best way to drill to the target reservoir and to configure casing to allow production from the well. During the design process, engineers use all available data to determine planned total depth (sometimes referred to as “TD”) of the well, casing point selections, required casing specifications, casing pressure ratings, cement slurry design, mud weight, and risk factors part...
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This note was uploaded on 01/18/2014 for the course BEPP 305 taught by Professor Nini during the Fall '11 term at UPenn.

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