Method and apparatus for synthesizing three dimensional seismic

Details Method and apparatus for synthesizing three dimensional seismic Method and apparatus for synthesizing three dimensional seismic

Filed on

1984-04-06

Date issued

1987-06-09

Examiner

Ruggiero, Joseph

Patent Class

Boots, shoes, and leggings

Other Related Categories

367 61, 367 73, G01V 100, G01V 132

Type

Patent

Status

active

Patent number

046725458

Description

ABSTRACT:
Method and apparatus are disclosed for converting seismic data obtained at known points to synthesized seismic traces obtainable at arbitrarily selected points. Two dimensional seismic data are converted to three dimensional data with the aid of a programmed computer to permit generation of arbitrary views of a particular geologic structure as well as a mathematical representation of the structure. In order to provide accurate interpolation from the known data, both apparent and true dip characteristics are obtained for the surveyed structure, and seismic trace data for a desired point are synthesized as a function of the dip of the surveyed structure. The dip characteristics are obtained from partial derivatives of the two dimensional data in specified coordinate directions. A three dimensional surface corresponding to the dip characteristics is obtained by a least squares fitting technique. The data obtained at the known points are weighted both by distance from the desired point and the semblance coefficients associated with dip for these points to synthesize the desired data.

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Society of Exploration Geophysicists, Abstract of 1983, Las Vegas Conference, Steve Chilcoat and Chen Yu Wang, Sohio Petroleum, pp. 562-564.

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