eprintid: 10643
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/06/43
datestamp: 2023-11-09 16:37:15
lastmod: 2023-11-09 16:37:15
status_changed: 2023-11-09 16:31:52
type: conference_item
metadata_visibility: show
creators_name: Sambo, C.H.
creators_name: Hermana, M.
creators_name: Babasari, A.
creators_name: Janjuhah, H.T.
creators_name: Ghosh, D.P.
title: Application of artificial intelligence methods for predicting water saturation from new seismic attributes
ispublished: pub
keywords: Flow of fluids; Forecasting; Fuzzy neural networks; Fuzzy systems; Genetic algorithms; Hydrocarbons; Inference engines; Metadata; Offshore oil well production; Offshore technology; Seismic prospecting; Seismic response; Seismic waves; Support vector machines; Well logging, Adaptive neuro-fuzzy inference system; Artificial intelligence methods; Artificial intelligence technologies; Fluid flow calculations; Fluid-saturation changes; Performance indices; Seismic information; Time lapse seismic analysis, Fuzzy inference
note: cited By 18; Conference of Offshore Technology Conference Asia 2018, OTCA 2018 ; Conference Date: 20 March 2018 Through 23 March 2018; Conference Code:138192
abstract: Accurate determination of water saturation is fundamental for predicting the amount of hydrocarbon fluid in reservoir, apart from monitoring fluid saturation changes whithin the reservoir using 4D seismic technology in the most efficient manner. In fact, although several techniques can be employed to predict water saturation, the well log based approaches have emerged as the most widely applied methods. Nevertheless, even though these techniques offer rather exceptional vertical resolution, it is a fact that lateral estimation is still an issue. As such, this study proposes a methodology that estimates the water saturation based on pre-stack seismic information by using artificial intelligence (AI) technologies, such as artificial neural network (ANN), adaptive neuro-fuzzy inference systems optimized by genetic algorithm (ANFIS-GA), as well as support vector machine (SVM). Therefore, the seismic data would go through a process known as seismic inversion and then transformed into seismic attributes, represented as SQp and SQs, this transformation is adherent to attenuation concept, which is associated to the rock physics. On top of that, data from two wells in Malaysian hydrocarbon field were employed to build the estimation models of ANN, ANFIS-GA, and SVM and then third well data was used as blind well to test unseen data. Furthermore, both SQp and SQs had been employed in the models as input variables, whereas the water saturation functioned as output. Other than that, several performance indices of statistical had been incorporated in this study so as to perform a comparison between the performances exerted by the selected models. As a result, the findings indicated thatalthough all models showed an acceptable agrrement with the experimental data to some extent, the ANFIS-GA based model had a better performance over other models. The present study show that the AI technology can be incorporated in water saturation prediction workflow from pre-statck seismic data which result in superior accuracy and performance in fluid flow calculations and time lapse seismic analysis. © 2018, Offshore Technology Conference.
date: 2018
publisher: Offshore Technology Conference
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083903461&doi=10.4043%2f28221-ms&partnerID=40&md5=9f64b06d0522e95b537d73010230186b
id_number: 10.4043/28221-ms
full_text_status: none
publication: Offshore Technology Conference Asia 2018, OTCA 2018
refereed: TRUE
isbn: 9781510862159
citation:   Sambo, C.H. and Hermana, M. and Babasari, A. and Janjuhah, H.T. and Ghosh, D.P.  (2018) Application of artificial intelligence methods for predicting water saturation from new seismic attributes.  In: UNSPECIFIED.