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EAGE/SEG Research Workshop 1990
- Conference date: 15 Jul 1990 - 18 Jul 1990
- Location: Cambridge, UK
- ISBN: 978-94-6282-136-1
- Published: 15 July 1990
61 - 69 of 69 results
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The relationship between the vertical acceleration of longitudinal seismic wave velocity and Bouguer anomaly values of gravity
More LessEvidence exists to suggest a possible relationship between a function of longitudinal wave velocity and Bouguer Anomaly values of gravity.
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Laboratory verification of a 3D fast finite-difference algorithm for seismic wave propagation
Authors R. M. Holt, R. Mittet and E. D. TusetSeismic exploration within the oil industry has three main objectives: i) Identify targets for future petroleum production. ii) Give a geometric description of reservoirs in order to obtain reliable estimates of hydrocarbon volumes in place. iii) Contribute to a physical characterization of sedimentary bodies with respect to lithology, porosity, pore fluid, pore pressure, etc.
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Extraction of P- and S-wave velocities from a 3D reflection data set and its application to direct hydrocarbon detection
Authors P. J. Vail, P. J. Strauss, P. Levitt and G. C. SmithA 3D seismic data set over the F-A/F-AR gas fields offshore South Africa has been interpreted for direct hydrocarban indicators, processed using bath conventional techniques and the GEOSTACK process.
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Reservoir description using shear-wave velocities
By C. MacBethThe vector analysis of shear-waves provides an opportunity to improve upon existing seismic methods for imaging the subsurface, to include a detailed investigation of the internal structure of reservoir rock and patterns of flow behaviour.
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Prediction of pore fluids and lithologies from P- and S-wave interval velocities as measured by OMNIPHONE: case history from Alberta, Canada
Authors G. Gassway and D. MilesS wave and P wave velocities when changed to Poisson's ratio are an accurate predictor of pore fluids and lithologies. Amplitude versus Offset (AVO) analysis of single component seismic data, laboratory measurements and 3c seismic data have shown that Poisson's ratio predicts pore fluid better than it predicts lithology. Poisson's ratio versus p wave velocity crossplots from AVO inversions and weIl log data indicate that pore fluid and lithologies fall on distinct trends on the crossplots.
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Interpretation of lateral variations in carbonate porosity by detailed stacking-velocity analysis: Mississippian bioherm example, Hardeman Basin, Texas
Authors R. A. Warwick and J. D. PiggotCommencing with Mayne's (1962) benchmark paper on common midpoint stacking (CMP), conventional stacking velocity analysis evolved rapidly as did realization of the problems inherent in the derived interval velocities (see reviews by Robinson, 1983; Cordier, 1985).
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Stratiseismic approach to evaporitic series by well logging and high-resolution seismic. Fundamental contribution of density values in determining reflection coefficients
By P. RenouxBecause of their peculiar depositional environment, evaporitic series are of prime interest for bath hydrocarban exploration (association with source rocks and traps) and mining (salt detection). Because reflection is caused by density-velocity contrasts, a joint study of geology, well logging data (mainly sonic density logs), and seismic data improve understanding of deposits.
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Velocity dispersion analysis: from lab to in situ frequencies
More LessVelocity dispersions are calculated in several rocks saturated with water, normal decane (n-decane), and a heavy oil (in petroleum engineering, heavy oil is referred as crude oil with viscosity higher than 0.5 Pa.s), respectively.
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Monte Carlo error analysis of seismic stacking and interval velocities
By M.J. PadgettErrors in subsurface velocities computed from surface seismic measurements are estimated using a ray trace Monte Carlo simulation of marine seismic shooting.
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