Rotary-steerable system drills 300,000 ft of hole

Dean E. Gaddy Drilling Editor A Norwegian driller lowers the rotary-steerable, closed-loop drilling assembly into a well in Norsk Hydro's Troll field (Fig. 1). Well 31/5 J-A11H, Troll Field, offshore Norway [65,014 bytes] A rotary-steerable, closed-loop drilling system accumulated 300,000 ft of hole last February, achieving a significant milestone for directional drilling technologies. With more than 10,000 hr of operation in the field, the Baker Hughes Inteq/Agip SpA Autotrack system reached this mark on the extended-reach well 31/5 J-11AH in Norsk Hydro's Troll field offshore Norway (Figs. 1 and 2). On the Troll well, the assembly geosteered ...

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