In a technically challenging deep well in the Anadarko Basin, the importance of engineered bottom hole assemblies (BHA) and "fit for purpose" drilling equipment were key factors in achieving project success. This paper will discuss the BHA analyses carried out prior to the start of the well, including prediction modeling and contingency considerations. Establishing a unique formation deviation control index for the well bore is demonstrated to be an important element in the decision making process of BHA design. Post-well analysis results are also discussed as are the lessons learned. The importance of establishing and maintaining consistent standards for equipment selection and the subsequent results are discussed. To manage a large amount of data gathered during drilling operations, a new system of data management was employed to ensure that the data gathered was in a useable format, and could be used for concurrent and future operational improvements. The results of field data, computer prediction modeling and the system of data management are discussed in this paper.

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