3-D seismic interpretation of stratigraphic and structural features in the Upper Jurassic to Lower Cretaceous sequence of the Gullfaks Field, Norwegian North Sea: A case study of reservoir development

The 3-D seismic dataset is a key tool to analyze and understand the mechanism of structural and stratigraphic hydrocarbon (HC) trapping in the subsurface. Conventionally used subsurface seismic characterization methods for fractures are based on the theory of effective anisotropy medium. The aim of...

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Main Authors: Muhammad Usman, Numair Ahmed Siddiqui, Eduardo Garzanti, Muhammad Jamil, Qazi Sohail Imran, Luqman Ahmed
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2021-10-01
Series:Energy Geoscience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666759221000196
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spelling doaj-d4d6090431024db282002790fbd702982021-09-21T04:10:15ZengKeAi Communications Co., Ltd.Energy Geoscience2666-75922021-10-01242872973-D seismic interpretation of stratigraphic and structural features in the Upper Jurassic to Lower Cretaceous sequence of the Gullfaks Field, Norwegian North Sea: A case study of reservoir developmentMuhammad Usman0Numair Ahmed Siddiqui1Eduardo Garzanti2Muhammad Jamil3Qazi Sohail Imran4Luqman Ahmed5Laboratory for Provenance Studies, Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza Della Scienza 4, 20126, Milano, Italy; Corresponding author.Geoscience Department, Universiti Teknologi PETRONAS, Seri Iskandar, 32610, Perak, Malaysia; Shale Gas Research Group, Institute of Hydrocarbon Recovery, Universiti Teknologi PETRONAS, Seri Iskandar, 32610, Perak, MalaysiaLaboratory for Provenance Studies, Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza Della Scienza 4, 20126, Milano, ItalyGeoscience Department, Universiti Teknologi PETRONAS, Seri Iskandar, 32610, Perak, MalaysiaGeoscience Department, Universiti Teknologi PETRONAS, Seri Iskandar, 32610, Perak, MalaysiaInstitute of Geology, University of the Punjab, Lahore, 56300, PakistanThe 3-D seismic dataset is a key tool to analyze and understand the mechanism of structural and stratigraphic hydrocarbon (HC) trapping in the subsurface. Conventionally used subsurface seismic characterization methods for fractures are based on the theory of effective anisotropy medium. The aim of this work is to improve the structural images with dense sampling of 3-D survey to evaluate structural and stratigraphic models for reservoir development to predict reservoir quality. The present study of the Gullfaks Field, located in the Norwegian North Sea Gullfaks sector, identifies the shallowest structural elements. The steepness of westward structural dip decreases eastward during the Upper Jurassic to Lower Cretaceous deposition. Reservoir sands consist of the Middle Jurassic deltaic deposits and Lower Jurassic fluvial channel and delta plain deposits. Sediment supply steadily prevails on sea-level rise and the succession displays a regressive trend indicated by a good continuous stacking pattern. The key factor for the development of reservoirs in the Gullfaks Field is fault transmissibility with spatially distributed pressure. The majority of mapped faults with sand-to-sand contacts are non-sealing, which provide restriction for the HC flow between the fault blocks. The traps for HC accumulation occur between the post-rift and syn-rift strata, i.e. antiform set by extensional system, unconformity trap at the top of syn-deposition, and structural trap due to normal faults. Overall reservoir quality in the studied area is generally excellent with average 35% porosity and permeability in the Darcy range. Our findings are useful to better understand the development of siliciclastic reservoirs in similar geological settings worldwide.http://www.sciencedirect.com/science/article/pii/S26667592210001963-D seismic modelMesozoic stratigraphic boundaryStructural trapReservoir qualityGullfaks Field
collection DOAJ
language English
format Article
sources DOAJ
author Muhammad Usman
Numair Ahmed Siddiqui
Eduardo Garzanti
Muhammad Jamil
Qazi Sohail Imran
Luqman Ahmed
spellingShingle Muhammad Usman
Numair Ahmed Siddiqui
Eduardo Garzanti
Muhammad Jamil
Qazi Sohail Imran
Luqman Ahmed
3-D seismic interpretation of stratigraphic and structural features in the Upper Jurassic to Lower Cretaceous sequence of the Gullfaks Field, Norwegian North Sea: A case study of reservoir development
Energy Geoscience
3-D seismic model
Mesozoic stratigraphic boundary
Structural trap
Reservoir quality
Gullfaks Field
author_facet Muhammad Usman
Numair Ahmed Siddiqui
Eduardo Garzanti
Muhammad Jamil
Qazi Sohail Imran
Luqman Ahmed
author_sort Muhammad Usman
title 3-D seismic interpretation of stratigraphic and structural features in the Upper Jurassic to Lower Cretaceous sequence of the Gullfaks Field, Norwegian North Sea: A case study of reservoir development
title_short 3-D seismic interpretation of stratigraphic and structural features in the Upper Jurassic to Lower Cretaceous sequence of the Gullfaks Field, Norwegian North Sea: A case study of reservoir development
title_full 3-D seismic interpretation of stratigraphic and structural features in the Upper Jurassic to Lower Cretaceous sequence of the Gullfaks Field, Norwegian North Sea: A case study of reservoir development
title_fullStr 3-D seismic interpretation of stratigraphic and structural features in the Upper Jurassic to Lower Cretaceous sequence of the Gullfaks Field, Norwegian North Sea: A case study of reservoir development
title_full_unstemmed 3-D seismic interpretation of stratigraphic and structural features in the Upper Jurassic to Lower Cretaceous sequence of the Gullfaks Field, Norwegian North Sea: A case study of reservoir development
title_sort 3-d seismic interpretation of stratigraphic and structural features in the upper jurassic to lower cretaceous sequence of the gullfaks field, norwegian north sea: a case study of reservoir development
publisher KeAi Communications Co., Ltd.
series Energy Geoscience
issn 2666-7592
publishDate 2021-10-01
description The 3-D seismic dataset is a key tool to analyze and understand the mechanism of structural and stratigraphic hydrocarbon (HC) trapping in the subsurface. Conventionally used subsurface seismic characterization methods for fractures are based on the theory of effective anisotropy medium. The aim of this work is to improve the structural images with dense sampling of 3-D survey to evaluate structural and stratigraphic models for reservoir development to predict reservoir quality. The present study of the Gullfaks Field, located in the Norwegian North Sea Gullfaks sector, identifies the shallowest structural elements. The steepness of westward structural dip decreases eastward during the Upper Jurassic to Lower Cretaceous deposition. Reservoir sands consist of the Middle Jurassic deltaic deposits and Lower Jurassic fluvial channel and delta plain deposits. Sediment supply steadily prevails on sea-level rise and the succession displays a regressive trend indicated by a good continuous stacking pattern. The key factor for the development of reservoirs in the Gullfaks Field is fault transmissibility with spatially distributed pressure. The majority of mapped faults with sand-to-sand contacts are non-sealing, which provide restriction for the HC flow between the fault blocks. The traps for HC accumulation occur between the post-rift and syn-rift strata, i.e. antiform set by extensional system, unconformity trap at the top of syn-deposition, and structural trap due to normal faults. Overall reservoir quality in the studied area is generally excellent with average 35% porosity and permeability in the Darcy range. Our findings are useful to better understand the development of siliciclastic reservoirs in similar geological settings worldwide.
topic 3-D seismic model
Mesozoic stratigraphic boundary
Structural trap
Reservoir quality
Gullfaks Field
url http://www.sciencedirect.com/science/article/pii/S2666759221000196
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