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Perdido Regional
Development Fact Sheet Perdido ·
The Perdido Regional
Development host will be located in Alaminos Canyon Block 857. Located in approximately 7,800 feet of water
in the Gulf of Mexico, it is about 200 miles south of Freeport, TX.
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This regional DVA (direct
vertical access) spar will be the deepest spar production facility in the
world.
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First
production from Perdido is expected around the turn of the decade, with the
facility capable of handling 130,000 boe/d (100,000 bopd & 200 mmcfpd).
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The Perdido host incorporates drilling capability and
functionality to gather, process and export production within a 30-mile radius
of the facility. This concept will
provide regional synergies, reduced cost and lower risk. It will also reduce the size and number of facilities and operations in this
challenging frontier area.
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Shell will
operate Perdido. It will be jointly
owned by Shell (35%), Chevron (37.5%) and BP (27.5%).
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Technology: first application of full host scale subsea
separation and boosting and first application of wet tree direct vertical
access wells from a spar.
Great White
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The Great White Prospect is comprised of six and one half blocks in Alaminos Canyon in the
Western Gulf of Mexico about 200 miles from the Texas coastline in water depths
ranging from 7,500 feet to 9,500 feet. ·
The block numbers are: 812, 813, 814, 857,
858 (W/2), 900, 901. These blocks were
acquired in Lease Sales 161 and 171 in 1996 and 1998, through joint bidding
arrangements with partners.
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Shell, as operator for the partnership, commenced
exploratory drilling operations on March 6, 2002 (jetting 36” casing) on
Alaminos Canyon Block 857 in 8,009 feet of water. The well reached its final TD on May 18, 2002. ·
The original well was drilled to a true vertical depth of
14,405 feet (14,408’ measured depth) by Transocean Sedco Forex's Deepwater Nautilus, an ultra deepwater
fifth generation semi-submersible unit.
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An appraisal well was drilled to a true vertical depth of
15,035 feet (MD-15, 180) during November - December 2002. Shell has drilled a total of five wells at
Great White, with the most recent spud occurring in August 2004.
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A total of three oil-bearing formations have been
penetrated to date at Great White: 1) Middle Oligocene age, Middle Frio Sands,
2) Lower Eocene age, Upper Wilcox Formation sands (WM12) and 3) Lower Paleocene
age, Lower Wilcox Formation sand (WM50).
Seismic quality over the field is fair to good, and the Oligocene and
Eocene objectives are supported by seismic amplitude anomalies related to
hydrocarbon fluid fill.
Tobago
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Tobago is located in Alaminos Canyon 859 in
approximately 9,600 feet. It is
operated by Shell with 32.5%, Chevron with 57.5%, and Nexen with 10%. The discovery
well was drilled in 2004 to a total depth of 18,510 feet. A sidetrack well was drilled to 18,425 feet. · Tobago will be the world's deepest subsea completion in 9,600 feet of water.
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