Methods for minimizing the amount of graphite particles used...

Earth boring – well treating – and oil field chemistry – Earth boring – Contains inorganic component other than water or clay

Reexamination Certificate

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Reexamination Certificate

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07977281

ABSTRACT:
Methods for minimizing the amount of graphite particles used during drilling operations, the methods comprise performing drilling operations using a drilling fluid system having effective rheological and fluid loss control properties, the drilling fluid system comprising a mixture of graphite particles having an effective particle size distribution.

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