About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

GCAGS Transactions

Abstract


Gulf Coast Association of Geological Societies Transactions
Vol. 50 (2000), Pages 243-245

Accurate Depth Conversions Reduce Risk

Larry C. Luton, Corine Prieto

Abstract

That accurate depth conversions reduce risk is not a new concept. The challenge lies in the proper selection of velocity data and model types that will generate accurate depth maps for evaluation and drilling of prospective areas.

Velocity information is available from a number of different sources. Well velocity data are available from checkshots, vertical seismic profiles, sonic logs and geological tops. Seismic imaging velocities (stacking and migration) are interpreted from various seismic processes (2D/3D DMO, 2D/3D Prestack Time and Depth Migration) of the seismic data.

The type of model (imaging or depthing) and procedure selected is influenced by available data, lithology and the geophysical acquisition and Previous HitprocessingTop parameters.

Our example illustrates the prospect resolution benefits using all available velocity data for an area of interest. We will also show the refinement gained by integrating other interpretations such as a seismic-derived fault interpretation and a salt configuration from a 3D-gravity model.


Pay-Per-View Purchase Options

The article is available through a document delivery service. Explain these Purchase Options.

Watermarked PDF Document: $14
Open PDF Document: $24