eprintid: 9432
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/94/32
datestamp: 2023-11-09 16:21:25
lastmod: 2023-11-09 16:21:25
status_changed: 2023-11-09 16:15:07
type: article
metadata_visibility: show
creators_name: Liu, C.
creators_name: Ghosh, D.
title: A new seismic attribute for ambiguity reduction in hydrocarbon prediction
ispublished: pub
keywords: Forecasting; Hydrocarbons; Lithology; Seismic response; Seismic waves, Amplitude versus offset; Attributes; Fluid factors; Fluid substitution; Hydrocarbon analysis; Hydrocarbon predictions; Seismic amplitudes; Seismic attributes, Seismology, AVO method; hydrocarbon exploration; numerical model; porosity; prediction; seismic data; seismicity
note: cited By 11
abstract: Hydrocarbon prediction from seismic amplitude and amplitude-versus-offset is a daunting task. Amplitude interpretation is ambiguous due to the effects of lithology and pore fluid. In this paper, we propose a new attribute �J� based on a Gassmann�Biot fluid substitution to reduce ambiguity. Constrained by seismic and rock physics, the J attribute has good ability to detect hydrocarbons from seismic data. There are currently many attributes for hydrocarbon prediction. Among the existing attributes, far-minus-near times far and fluid factor are commonly used. In this paper, the effectiveness of these two existing attributes was compared with the new attribute. Numerical modelling was used to test the new attribute �J� and to compare �J� with the two existing attributes. The results showed that the J attribute can predict the existence of hydrocarbon in different porosity scenarios with less ambiguity than the other two attributes. Tests conducted with real seismic data demonstrated the effectiveness of the J attribute. The J attribute has performed well in scenarios in which the other two attributes gave inaccurate predictions. The proposed attribute �J� is fast and simple, and it could be used as a first step in hydrocarbon analysis for exploration. © 2016 European Association of Geoscientists & Engineers
date: 2017
publisher: Blackwell Publishing Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962809059&doi=10.1111%2f1365-2478.12367&partnerID=40&md5=ee13e2016bc25ea3861ed64b2b308633
id_number: 10.1111/1365-2478.12367
full_text_status: none
publication: Geophysical Prospecting
volume: 65
number: 1
pagerange: 229-239
refereed: TRUE
issn: 00168025
citation:   Liu, C. and Ghosh, D.  (2017) A new seismic attribute for ambiguity reduction in hydrocarbon prediction.  Geophysical Prospecting, 65 (1).  pp. 229-239.  ISSN 00168025