ExxonMobil's Deepwater Exploration Yields Results
Having set the world's water-depth record for a combined
drilling and production platform, Exxon Mobil Corp.'s Hoover and
Diana fields now are averaging 140 MMcf of gas and 18,000 barrels
of oil per day from five wells, and contain estimated recoverable
resources that exceed 300 million oil-equivalent barrels.
The startup of oil and gas production in the Gulf of Mexico was
first announced last week with the gas flowing through the
recently-completed East Breaks Gathering System, an 85-mile,
20-inch diameter pipeline running from water depths of 440 feet to
4,700 feet in the Gulf of Mexico. The Hoover Diana development is
located 200 miles south of Houston in 4,800 feet of water.
ExxonMobil said that the $1.1 billion project to co-develop the
two fields will produce peak daily rates of 100,000 barrels of oil
and 325 MMcf/d of gas. ExxonMobil is operator with a 66.7% interest
in the project and BP Amoco holds 33.3% interest.
"The Hoover Diana project is a major technological milestone for
producing in the deepwater environment," said Harry J. Longwell,
senior vice president. He said the technology used in the Gulf will
be "applied to subsequent developments around the world." He added
that deepwater oil and gas is expected to account for more than 20%
of ExxonMobil's production by 2010.
ExxonMobil holds the largest deepwater prospective acreage
position in the industry, with 136 million acres in various places,
including the Gulf of Mexico, West Africa and South America, and
has participated in 30 deepwater discoveries.
The Hoover Diana development is using a Deep Draft Caisson
Vessel (DDCV) over the Hoover field that floats vertically. It is
83-stories high, and is nearly half a football field in diameter
with drilling and production facilities. The Diana field, 15 miles
west of Hoover, is a subsea development that uses five horizontally
completed wells tied back to the DDCV.
Carolyn Davis, Houston
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