OPTIMAL SURVEY DESIGN

摘要

Methods of analyzing and optimizing a seismic survey design are described. Specifically, the sampling quality is analyzed as opposed to the overall quality of the whole survey. This allows for analysis of the impact of the offsets, obstacles, and other aspects of the survey on the sampling quality, which will improve the ability to compress the resulting data and minimize acquisition footprints.

主权项

1. A method of evaluating a seismic survey design comprising,
a) determining the location of a plurality of seismic sources and a plurality of receivers geographically in a seismic survey design; b) summing the responses, offsets, and azimuth relationships for the locations determined in step 1a in the central midpoint space (CMP); c) compiling said summed responses, offsets and azimuth relationships into a CMP array; d) applying an F-K transform to said CMP array; e) applying a frequency-wavenumber filter to said transformed CMP array; f) evaluating the filtered array for artifacts; g) modifying said survey design to correct said artifacts; and h) repeating steps a-f until an optimal survey is produced, and i) applying said optimal seismic survey design to a reservoir.