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Assume you are pumping a heavier mud of 1 2 ppg at the bottom of the annular space between the drill string and the hole.
Assume you are pumping a heavier mud of ppg at the bottom of the annular space between the drill string and the hole. The total vertical depth is ft and the fracture pressure at the bottom is psi. The heavier mud is displacing the original mud of ppg What is the maximum allowable height of the heavier mud in the annulus measuredfrom bottom for not fracturing at bottom?
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