Hughes Christensen PDC bits set field record in Mexico's challenging southeast marine region

摘要

HUGHES CHRISTENSEN has set a field record using its Genesis XT PUC bits in Mexico's southeast marine region. Historically, the Ixtal field's Cretaceous formation, consisting of fractured mudstone and wackstone and 5 percent to 10 percent interlays of bentonite and chert, had been drilled with 8 1/2-in. TCI bits and a seal reliability limit of 350,000 revolutions, resulting in multiple runs at low rates of penetration. For Ixtal-34, a competitor ran a new impregnated bit design for increasing ROE The performance was poor, so the operator pulled it out of hole and asked Hughes Christensen for a bit proposal to solve the problem.