Marine survey design and analysis using all multiples

Marine survey design and analysis using all multiples

Kumar, A.
Blacquiere, G.
Pedersen, M.W.
Goertz, A.

Civil Engineering and Geosciences

Geoscience & Engineering

2015-06-01

Despite a tremendous leap in efficiency and wave field sampling over the last two decades, it is sometimes still difficult to achieve adequate coverage and resolution with marine streamer acquisition. It is therefore necessary to carefully study the acquisition geometry, especially with respect to resolution and image quality in the cross-line direction. In this paper, we extend the focal beam method to analyze marine streamer geometries with and without using all multiples. Multiples are traditionally suppressed, but can instead be used in the imaging process where they often contribute positively by opening up the available aperture. We especially address coverage deficiencies that can occur when the survey geometry deviates from the ideal, for example due to feathering. As a result, extra ’infill’ lines must be acquired. We present how infill analysis can be performed via the focal beam theory to assess the impact of coverage holes for primaries as well as multiples.

http://resolver.tudelft.nl/uuid:7fe13d25-10dd-4a81-8dd4-7dbd31c78c04

EAGE

77th EAGE Conference and Exhibition 2015, Madrid, Spain, 1-4- June 2015

Institutional Repository

conference paper

(c) 2015 The Author(s)