Mobil Producing Nigeria has agreed with Nigerian National Petroleum Corp. (NNPC) and the Nigerian government to develop Oso gas/condensate field off Nigeria.
The two companies let a $400 million construction contract to MBJ Consortium, composed of McDermott Inc., New Orleans, Bouygues Offshore SA, Montigny-le-Bretonneux, France, and Japan Gasoline Corp.
MBJ will build eight platforms, a condensate pipeline from Oso to Mobil's Qua Iboe terminal, condensate storage tanks at the terminal, and dedicated export structures. It also will lay a low pressure gas gathering system between Oso and Mobil oil fields in Oil Mining Leases 67 and 70.
Oso field is in OML 70, 35 miles from Qua Iboe terminal. Mobil, as operator, holds a 40% interest in the lease, NNPC 60%.
Reserves are about 500 million bbl.
Mobil expects production to begin in early 1993 and reach 100,000 b/d of condensate by yearend 1993.
It plans to inject the 300 MMcfd of gas Oso will produce and 200 MMcfd from OMLs 67 and 70 to maintain reservoir pressure.
This will use nearly 100% of associated gas. About 3.5 tcf will remain in Oso field after the condensate is produced. The project has loans for about 70% of its total required investment of about $1 billion.
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