The introduction of a new Polycrystalline Diamond Compact (PDC) product into Mexico's oil market has been shown to help improve drilling time through the Cretaceous (with flint) and Jurassic rock. Through teamwork of various parties involved, the objective of efficiently drilling this difficult formation was accomplished.

This paper discusses specific design features which improved bit selection for this application. Examples of design considerations include bit profile, cutter size and type, cutter density, hydraulic configuration and blade count.

A presentation is given of performance data, operational details and economic analysis concerning use of bit design ultimately selected. This data indicates that an increase in overall drilling performance contributed to the success of economically drilling the Cretaceous (with flint) and Jurassic rock.

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