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Journal of Emerging Trends in Engineering and Applied Sciences (JETEAS)

ISSN:2141-7016

Article Title: Digital Wiener's Filtering in Seismic Data Processing in Trans-Ramos Prospect of Rivers State
by J. C. Egbai

Abstract:
The basic objective of seismic processing is to convert the information recorded in the field into 1Aa form that most greatly facilitates geological interpretation. This was carried out in Trans-Ramos Prospect of Rivers State by applying the Wiener's digital filtering to the unprocessed data got from the field. The unprocessed data got from the field operations are fed into automatic computer whose program is written in line with the theory. A filter operator was designed if the observed trace is known to specify the desired signal. In this situation, a filter operator when convolved with the recorded trace would yield an output as close as possible to the desired signal. In this work, the processes of spiking deconvolution, prewhitening, Wiener shaping filter and predictive deconvolution were applied to the unprocessed data for effective processing. The aim of spike deconvolution is to flatten the output spectrum. The actual output from the Wiener filter using optimum delayed spike shows the most possible result. These processes when fully and correctly carried out give room for effective interpretation of the seismic data for oil wells.
Keywords: Seismic processing, deconvolution, filter operator, reflectivity, desired output and actual output.
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ISSN: 2141-7016

Editor in Chief.

Prof. Gui Yun Tian
Professor of Sensor Technologies
School of Electrical, Electronic and Computer Engineering
University of Newcastle
United Kingdom

 

 

Copyright © Journal of Emerging Trends in Engineering and Applied Sciences 2010