G-28 ESTIMATING NET PAY FOR DEEP-WATER TURBIDITE CHANNELS OFFSHORE ANGOLA 1 PAT CONNOLLY 1 GREG SCHURTER 2 MIKE DAVENPORT 1 and STEVE SMITH 2 *BP Angola Business Unit Compass Point 79-87 Kingston Rd Staines Middlesex TW18 1DY UK **BP Upstream Technology Group Summary The deepwater mid-slope turbidites offshore Angola have become important exploration targets in recent years (e.g. Girassol Dalia Hungo). They form complex highly sinuous channels (Kolla et al. 2001) with highly variable net-to-gross which makes the estimation of net rock volume for volumetric calculations a challenging technical problem. Wells in this environment are expensive and hence appraisal programmes


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