«Proceedings of Gubkin University»

АHALYSIS OF STABILITY OF SEISMIC ACOUSTIC INVERSION FOR DIFFERENT GEOLOGICAL MODELS OF A PRIORI INFORMATION

UDC: 550.3
DOI: -

Authors:

¹ Gubkin Russian State University of Oil and Gas (National Research University)

Keywords: аcoustic impedance, Deterministic acoustic seismic inversion, stochastic distribution of elastic properties, model based inversion

Annotation:

The paper discusses how a priori information of the geological model affects the result of deterministic acoustic seismic inversion. Models with different statistical distribution of layer thickness and reflectivity have been calculated. The study of various model data with different noise showed that extremely thin layers of acoustic contrast, intense reflection coefficient and strong seismic noise have a negative impact on the result of acoustic inversion. The industry widely used software Hampson-Russell CGG has been tested.

Bibliography:

1. Cooke D. A. and Schneider W.A. Generalized linear inversion of reflection seismic data. Geophysics, 1983, v. 48, p. 665-676.
2. Hampson D.P., Russell B.H., Bankhead B. Simultaneous inversion of pre-stack seismic data. SEG Annual Meeting, Expanded Abstracts, 2005, p. 1633-1637.
3. Lindseth R.O. Synthetic sonic logs — A process for stratigraphic interpretation. Geophysics, 1979, no. 44, р. 3-26.
4. Russell B.H. and Hampson D.P. Comparison of poststack seismic inversion methods. SEG Annual Meeting, Expanded Abstracts, 1991, р. 876-878.