Optimizing Acquisition Geometry in Shallow Gas Cloud Using Particle Swarm Optimization Approach

DOI

10.2991/ijcis.10.1.79How to use a DOI?

Keywords

Acquisition geometry; shallow gas cloud; particle swarm optimization; Malaysia Basin

Abstract

Many hydrocarbon explorations in mature fields have been severely affected by complex and overburdening issues, such as shallow gas accumulation, gas pockets, and gas seepage. In this work, a new forward modelling technique is proposed in evaluating the potential survey design for fields affected by shallow gas cloud. In recent years, the implementation of innovative acquisition layouts has been producing significantly better seismic images, especially in the low illumination subsurface area. However, the uncertainty of the effectiveness in new acquisition design subsurface coverage always become a major stumbling block. To overcome this constraint, an optimization approach is suggested through the smart source and receiver location arrangement on the surface, with significant alignment to the conventional source and receiver arrangement approach. The particle swarm optimization (PSO) method is used to find the source-receiver configuration with maximum subsurface illumination coverage for the gas affected field situated in Malaysia Basin. Implementation of the PSO algorithm requires both a velocity model building process and wave field extrapolation from a target reflector to the surface level. The wave field data then was used to simulate receiver optimization outputs which eventually determined the subsurface illumination coverage. The results from the new optimization method for both synthetic model and Malaysia Basin data, offer a greater understanding of the consequences of obstacles caused by shallow anomalies with respect to seismic acquisition, data processing, and interpretation.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article under the CC BY-NC license (http://creativecommons.org/licences/by-nc/4.0/).

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TY  - JOUR
AU  - Abdul Halim Abdul Latiff
AU  - Deva Prasad Ghosh
AU  - Nurul Mu’azzah Abdul Latiff
PY  - 2017
DA  - 2017/09/14
TI  - Optimizing Acquisition Geometry in Shallow Gas Cloud Using Particle Swarm Optimization Approach
JO  - International Journal of Computational Intelligence Systems
SP  - 1198
EP  - 1210
VL  - 10
IS  - 1
SN  - 1875-6883
UR  - https://doi.org/10.2991/ijcis.10.1.79
DO  - 10.2991/ijcis.10.1.79
ID  - AbdulLatiff2017
ER  -