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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 63 (1979)

Issue: 3. (March)

First Page: 513

Last Page: 513

Title: Reservoir Studies and Inversion of Seismic Traces: ABSTRACT

Author(s): E. Rainon

Article Type: Meeting abstract


Inverting seismic traces is the means of finding a velocity or acoustic-impedance model from the recorded traces. Data are processed in preserved-amplitude mode. A wavelet inverse filtering results in a series of Previous HitreflectionNext Hit Previous HitcoefficientsNext Hit. Previous HitReflectionNext Hit Previous HitcoefficientsNext Hit are simple functions of velocities and densities. A transformation of the series of Previous HitreflectionNext Hit Previous HitcoefficientsTop into relative velocities provides a display where the inverted seismic traces at a well location can be directly correlated to the sonic log.

Prediction of lateral changes affecting the formations intersected by the well is the most direct application. Provided the original surface seismic data have a sufficiently broad frequency spectrum, the inversion improves the detection of thin beds and lateral facies changes. Two examples of reservoir studies illustrate the application of the method: the first is in a deltaic sandstone and shale sequence; the second is a shelf-carbonate province.

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Copyright 1997 American Association of Petroleum Geologists