oh its a beuty19 Nov 2013 07:19
The Ogo-1 well was drilled to a total measured depth of 10,518 ft (10,402 ft true vertical depth subsea), and encountered a gross hydrocarbon section of 524 ft, with 216 ft of net stacked pay. The Ogo-1 ST reached a total measured depth (TD) of 17,987 ft (12,050 ft true vertical depth subsea) and encountered hydrocarbon intervals in the same Turonian, Cenomanian and Albian reservoirs that were successfully drilled and logged at the Ogo-1 well. In addition, the syn-rift section encountered a 280 ft true vertical thickness gross hydrocarbon interval.
Based on the well data, the Partners estimate the P50 to P10 gross recoverable resources range to be significantly ahead of pre-drill expectations at 774 to 1,180 mmboe across the Ogo prospect four-way dip-closed and synrift structures. This suggests potential net recoverable resources to Lekoil Nigeria, in which the Company's interest remains unchanged from the date of admission, of 232 mmboe (P50) and 354 mmboe (P10). Additional upside potential is expected in the synrift play. In addition, the latest PVT (Pressure-Volume-Temperature) analysis confirms excellent reservoir fluid properties with a 40 deg API, 600 GOR, 0.42 cp viscosity oil in the Turonian, a 39 deg API, 870 GOR, 0.40 cp viscosity oil in the Cenomanian and a condensate rich gas in the Albian of up to 115 bbls/mmscf. The Partners expect the synrift to contain a light oil or a condensate rich gas.
Whilst circulating bottoms up at TD, the drill string parted at 3,390 ft and during good progress towards recovery of the drill string from the well bore, the well took a hydrocarbon kick. After the kick was safely controlled, the Partners considered it prudent to move to permanently secure the well.
The Partners intend to drill an appraisal well in H2 2014, ahead of development planning and will also increase 3D coverage on the block, currently covering only 25 per cent. of the block, to define further prospectivity.
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