ChevronTexaco unit makes oil discovery in Angola-Congo shared zone

By OGJ editors

HOUSTON, Oct. 12 -- Chevron Overseas Congo Ltd. and its eight partners reported a significant discovery with the Lianzi-1 exploration well within the 696-sq-km deepwater unitization zone, 14K/A-IMI, shared 50:50 between Angola and Congo.

The shared unit covers the combined portions of 14K, Angola's deepwater prospect lying within the Block 14 concession, and the A-IMI prospect within the Congo's Haute Mer permit (OGJ Online, Dec. 27, 2002).

The Lianzi-1 exploration well was drilled in 909 m of water, encountering two oil-bearing reservoirs. A drill stem test of one interval flowed more than 5,000 b/d of 40° gravity oil through a 40/64-in. choke.

The ChevronTexaco unit next will complete geologic and engineering studies to assess the field's size, reserves potential, and development options.

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