Method of 3D object delineation from 3D seismic data

摘要

A method of 3D object delineation from 3D seismic data comprising the steps of, providing 3D seismic data; processing the data based on at least one characteristic whereby said characteristic is extracted from the data and compared with at least one reference characteristic and delineated based on the comparison, and defining a geological element based on the delineation. The characteristics may be adjusted. Data can be processed based on one characteristic then processed based on a second characteristic or data is processed based on two characteristics substantially simultaneously. Data may be processed n times producing n delineations from which the geological element is defined. An algorithm is provided for processing the data which may shift an evolving shape description of an object between explicit and implicit representations, where each shift applies a transformation to the object. Multiple sources of data may be utilized simultaneously to drive the delineation process.

主权项

1. A method of 3D object delineation from 3D seismic data comprising the steps of:
a) providing 3D seismic data; b) processing the data based on a first characteristic, wherein said first characteristic is extracted from the data and compared with at least one reference characteristic so as to define a set of object data; c) delineating the object data according to a first delineation technique; d) transforming the delineated object data using a second delineation technique so as to obtain a set of improved object data; e) extracting object data from the improved object data set; f) and repeating steps b) to e) using the extracted object data, until desired criteria are reached, so as to define a region of interest; and g) wherein the first delineation technique includes active contour delineation; and the second delineation technique includes level set segmentation; the region of interest being defined is a geological element.