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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 Previous HitSeismicNext Hit Traces: ABSTRACT

Author(s): E. Rainon

Article Type: Meeting abstract


Inverting Previous HitseismicNext Hit traces is the means of finding a velocity or acoustic-impedance model from the recorded traces. Previous HitDataNext Hit are processed in preserved-amplitude mode. A wavelet inverse filtering results in a series of reflection coefficients. Reflection coefficients are simple functions of velocities and densities. A transformation of the series of reflection coefficients into relative velocities provides a Previous HitdisplayNext Hit where the inverted Previous HitseismicNext Hit 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 Previous HitseismicNext Hit Previous HitdataTop 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