Method and system for horizon interpretation of seismic surveys

Details Method and system for horizon interpretation of seismic surveys Method and system for horizon interpretation of seismic surveys

1996-09-19

1999-04-13

McElheny, Jr., Donald E.

Boots, shoes, and leggings

702 16, 702 17, G06F 1900

Patent

active

058944176

ABSTRACT:
A computer system for interpreting seismic signals to identify reflective horizons is disclosed. The seismic signals are retrieved and conventional corrections are applied. A seismic survey is displayed, and a human analyst places horizon lines or surfaces above or below suspected reflective events in the survey. The disclosed method then operates on a trace by trace basis to identify the location in time at which the attribute, which may be amplitude, envelope amplitude, phase, frequency and the like, meets a draping criterion. The interpreted horizon is set at the identified depth or time location, and the interpreted horizon points are connected into an interpreted horizon surface (in the case of a 3-D survey). Traces having only weak or no reflections may not have an interpreted surface point, or may have an interpolated point set therefor. An automated and efficient horizon interpretation method and system, even for large surveys of complex geology, is thus provided.

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Stark, "Surface slice generation and interpretation: A review", The Leading Edge, vol. 15, No. 7 (Jul. 1996), pp. 818-819.

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