Shelf's Flatrock at 200 MMcfd and growing

Flatrock field in the Gulf of Mexico shelf is producing 200 MMcfd of gas from four wells, has more than 350 bcf of proved reserves by independent estimate, and has the potential to grow, said McMoRan Exploration.

By OGJ editors
HOUSTON, Jan. 21 -- Flatrock field in the Gulf of Mexico shelf is producing 200 MMcfd of gas from four wells, has more than 350 bcf of proved reserves by independent estimate, and has the potential to grow, said McMoRan Exploration Co., New Orleans.

Individual well rates vary depending on porosity, permeability, pressures, and hydrocarbon column, but the primary Miocene Rob-L reservoir has achieved the highest output at more than 100 MMcfd.

The No. 4 well, which tested at 124 MMcfd in October 2008, is making 60 MMcfd with a targeted gross rate of 90 MMcfd. The field's Operc section is producing in two wells and being completed in a third well, and the No. 6 well might penetrate the upper Gyro section sands.

The No. 5 development well logged 155 net ft of Rob-L and Operc pay, is being completed in Operc, and is due on line in this year's first quarter. The No. 6 delineation well on SMI 217 is drilling below 16,000 ft towards 19,700 ft. It logged 40 net ft of Rob-L pay.

The field was a July 2007 discovery in 10 ft of water on South Marsh Island Block 212.

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