Teamwork, downhole technology expedites Tierra del Fuego operations

06/07/1999
EXTENDED-REACH DRILLING-Conclusion Roland Vighetto, Matthieu Naegel, Emmanuel Pradi? Total Austral SA Tierra del Fuego, Argentina A bit similar to this four-bladed, 12¼-in., Diamond Products International polycrystalline diamond compact, drilled a single-footage world record of 22,221 ft in Total's Cullen Sur No. 1 well, located southeast of the Cullen Norte No. 1. Average penetration rates achieved 100 ft/hr over a period of 221 hr. The previous single-footage record of 15,579 ft was set in 1994 (Fig. 2). To assess and optimize hole-cleaning efficiency, the amount of cuttings were tracked real time through the use of a cuttings-weighing...
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