Floater drills with casing off Indonesia

Santos Madura Offshore Pty. Ltd. completed the industry's first well drilled with casing from a floating rig, according to Weatherford International Ltd.The Transocean Sedco 601 semisubmersible drilled the well in the Madura Straits, off East Java, Indonesia, an area prone to shallow gas kicks and blowouts. In an announcement, Weatherford said the drilling included surface blowout preventers (BOPs). With drilling with casing technology, Santos eliminated a 30-in. casing string and was able to substitute a 133/8-in. casing string for the usual 20-in. casing string run in the area.The casing used was 133/8-in., 72 lb/ft buttress with a P-110 NSCC riser pipe. The drill shoe had a 171/2-i...

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