TWO-RISER SYSTEM IMPROVES DRILLING AT AUGER PROSPECT

02/10/1992
Romulo Gonzalez, Gary L. Marsh, Paul B. Ritter, Paul E. Mendel Shell Offshore Inc. New Orleans A two-riser system (TRS) for drilling deepwater development wells eliminates some of the limitations of conventional subsea technology and allows flexibility in well programs. Shell Offshore Inc.'s deep exploratory wells in Garden Banks 426 and 471 have encountered drilling problems that were attributed to limitations in casing sizes imposed by conventional subsea drilling systems. These problems are not uncommon in exploratory deepwater, deep well drilling in the Gulf of Mexico. Reservoir depths of up to 19,500 ft true vertic...
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