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CT&F - Ciencia, Tecnología y Futuro
versão impressa ISSN 0122-5383versão On-line ISSN 2382-4581
Resumo
ESCOBAR, Freddy-Humberto; MONTEALEGRE-MADERO, Matilde e CARRILLO-MORENO, Daniel. STRAIGHT LINE METHODS FOR ESTIMATING PERMEABILITY OR WIDTH FOR A TWO-ZONE COMPOSITE CHANNELIZED RESERVOIR. C.T.F Cienc. Tecnol. Futuro [online]. 2009, vol.3, n.5, pp.107-124. ISSN 0122-5383.
Some well pressure tests conducted in channelized systems which result from either fluvial deposition or faulting, cannot be completely interpreted by conventional techniques, since variation in facies or reservoir width are not normally recognized yet in the oil literature. In this case, the corresponding equations traditionally used for single-linear flow will provide inaccurate results. Therefore, they must be corrected. In this study, new equations to be used in conventional analysis for the linear flow (pseudo linear) regime formed during the acting of the anomaly - reservoir width or permeability - are introduced to the oil literature. The equations do not consider the simultaneous variation of both parameters. The proposed equations were validated by applying them to synthetic and field examples.
Palavras-chave : linear flow; dual-linear flow; pseudo-linear flow; Cartesian plot; channel reservoirs; skin factor.