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Towards an integrated restoration/forward geomechanical modelling workflow for basin evolution prediction
Oil & Gas Sciences and Technology – Revue d’IFP Energies nouvelles, Volume: 73, Start page: 18
Swansea University Author:
Djordje Peric
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DOI (Published version): 10.2516/ogst/2018018
Abstract
Many sedimentary basins host important reserves of exploitable energy resources. Understanding of the present-day state of stresses, porosity, overpressure and geometric configuration is essential in order to minimize production costs and enhance safety in operations. The data that can be measured f...
Published in: | Oil & Gas Sciences and Technology – Revue d’IFP Energies nouvelles |
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ISSN: | 1294-4475 1953-8189 |
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2018
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URI: | https://cronfa.swan.ac.uk/Record/cronfa40972 |
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2018-09-11T14:00:42.8015290 v2 40972 2018-07-11 Towards an integrated restoration/forward geomechanical modelling workflow for basin evolution prediction 9d35cb799b2542ad39140943a9a9da65 0000-0002-1112-301X Djordje Peric Djordje Peric true false 2018-07-11 CIVL Many sedimentary basins host important reserves of exploitable energy resources. Understanding of the present-day state of stresses, porosity, overpressure and geometric configuration is essential in order to minimize production costs and enhance safety in operations. The data that can be measured from the field is, however, limited and at a non-optimal resolution. Structural restoration (inverse modelling of past deformation) is often used to validate structural interpretations from seismic data. In addition, it provides the undeformed state of the basin, which is a pre-requisite to understanding fluid migration or to perform forward simulations. Here, we present a workflow that integrates geomechanical-based structural restoration and forward geomechanical modelling in a finite element framework. The geometry and the boundary kinematics derived from restoration are used to automatically create a forward geomechanical model. Iterative correction may then be performed by either modifying the assumptions of the restoration or modifying the restoration-derived boundary conditions in the forward model. The methodology is applied to two problems; firstly, a sand-box scale benchmark model consisting of sand sediments sliding on silicon leading to the formation of a graben structure; secondly, a field-scale thrust-related anticline from Niger Delta. Two strategies to provide further constraint on fault development in the restoration-derived forward simulation are also presented. It is shown that the workflow reproduces the first order structural features observed in the target geometry. Furthermore, it is demonstrated that the iterative approach provides improved understanding of the evolution and additional information of current-day stress and material state for the Niger Delta Case. Journal Article Oil & Gas Sciences and Technology – Revue d’IFP Energies nouvelles 73 18 1294-4475 1953-8189 31 12 2018 2018-12-31 10.2516/ogst/2018018 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2018-09-11T14:00:42.8015290 2018-07-11T09:35:06.7751164 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Anthony J.L. Crook 1 Joshua Obradors-Prats 2 Deniz Somer 3 Djordje Peric 0000-0002-1112-301X 4 Pete Lovely 5 Marek Kacewicz 6 0040972-11072018093741.pdf crook2018.pdf 2018-07-11T09:37:41.2000000 Output 4870036 application/pdf Version of Record true 2018-07-11T00:00:00.0000000 true eng |
title |
Towards an integrated restoration/forward geomechanical modelling workflow for basin evolution prediction |
spellingShingle |
Towards an integrated restoration/forward geomechanical modelling workflow for basin evolution prediction Djordje Peric |
title_short |
Towards an integrated restoration/forward geomechanical modelling workflow for basin evolution prediction |
title_full |
Towards an integrated restoration/forward geomechanical modelling workflow for basin evolution prediction |
title_fullStr |
Towards an integrated restoration/forward geomechanical modelling workflow for basin evolution prediction |
title_full_unstemmed |
Towards an integrated restoration/forward geomechanical modelling workflow for basin evolution prediction |
title_sort |
Towards an integrated restoration/forward geomechanical modelling workflow for basin evolution prediction |
author_id_str_mv |
9d35cb799b2542ad39140943a9a9da65 |
author_id_fullname_str_mv |
9d35cb799b2542ad39140943a9a9da65_***_Djordje Peric |
author |
Djordje Peric |
author2 |
Anthony J.L. Crook Joshua Obradors-Prats Deniz Somer Djordje Peric Pete Lovely Marek Kacewicz |
format |
Journal article |
container_title |
Oil & Gas Sciences and Technology – Revue d’IFP Energies nouvelles |
container_volume |
73 |
container_start_page |
18 |
publishDate |
2018 |
institution |
Swansea University |
issn |
1294-4475 1953-8189 |
doi_str_mv |
10.2516/ogst/2018018 |
college_str |
Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
department_str |
School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering |
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description |
Many sedimentary basins host important reserves of exploitable energy resources. Understanding of the present-day state of stresses, porosity, overpressure and geometric configuration is essential in order to minimize production costs and enhance safety in operations. The data that can be measured from the field is, however, limited and at a non-optimal resolution. Structural restoration (inverse modelling of past deformation) is often used to validate structural interpretations from seismic data. In addition, it provides the undeformed state of the basin, which is a pre-requisite to understanding fluid migration or to perform forward simulations. Here, we present a workflow that integrates geomechanical-based structural restoration and forward geomechanical modelling in a finite element framework. The geometry and the boundary kinematics derived from restoration are used to automatically create a forward geomechanical model. Iterative correction may then be performed by either modifying the assumptions of the restoration or modifying the restoration-derived boundary conditions in the forward model. The methodology is applied to two problems; firstly, a sand-box scale benchmark model consisting of sand sediments sliding on silicon leading to the formation of a graben structure; secondly, a field-scale thrust-related anticline from Niger Delta. Two strategies to provide further constraint on fault development in the restoration-derived forward simulation are also presented. It is shown that the workflow reproduces the first order structural features observed in the target geometry. Furthermore, it is demonstrated that the iterative approach provides improved understanding of the evolution and additional information of current-day stress and material state for the Niger Delta Case. |
published_date |
2018-12-31T03:52:12Z |
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1763752576389480448 |
score |
11.021648 |