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Title: Wrench tectonics in Abu Dhabi, United Arab Emirates

Abstract

Recent studies of the geodynamics and tectonic history of the Arabian plate throughout geologic time have revealed that Wrench forces played an important role in the structural generation and deformation of Petroleum basins and reservoirs of the United Arab Emirates. The tectonic analysis of Abu Dhabi revealed that basin facies evolution were controlled by wrench tectonics, examples are the Pre-Cambrian salt basin, the Permo-Triassic and Jurassic basins. In addition, several sedimentary patterns were strongly influenced by wrench tectonics, the Lower Cretaceous Shuaiba platform margin and associated reservoirs is a good example. Wrench faults, difficult to identify by conventional methods, were examined from a regional perspective and through careful observation and assessment of many factors. Subsurface structural mapping and geoseismic cross-sections supported by outcrop studies and geomorphological features revealed a network of strike slip faults in Abu Dhabi. Structural modelling of these wench forces including the use of strain ellipses was applied both on regional and local scales. This effort has helped in reinterpreting some structural settings, some oil fields were interpreted as En Echelon buckle folds associated with NE/SW dextral wrench faults. Several flower structures were interpreted along NW/SE sinistral wrench faults which have significant hydrocarbon potential. Synthetic and Antitheticmore » strike slip faults and associated fracture systems have played a significant role in field development and reservoir management studies. Four field examples were discussed.« less

Authors:
;
Publication Date:
OSTI Identifier:
127641
Report Number(s):
CONF-950995-
Journal ID: AABUD2; ISSN 0149-1423; TRN: 95:005942-0196
Resource Type:
Journal Article
Resource Relation:
Journal Name: AAPG Bulletin; Journal Volume: 79; Journal Issue: 8; Conference: International conference and exhibition of the American Association of Petroleum Geologists, Inc.: managing change at the turn of the century, Nice (France), 10-13 Sep 1995; Other Information: PBD: Aug 1995
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 58 GEOSCIENCES; UNITED ARAB EMIRATES; TECTONICS; SEDIMENTARY BASINS; ORIGIN; RESERVOIR ROCK; PETROLEUM DEPOSITS; EXPLORATION; RESOURCE POTENTIAL; GEOLOGIC FAULTS

Citation Formats

Ibrahim, M., and Mohamed, A.S. Wrench tectonics in Abu Dhabi, United Arab Emirates. United States: N. p., 1995. Web.
Ibrahim, M., & Mohamed, A.S. Wrench tectonics in Abu Dhabi, United Arab Emirates. United States.
Ibrahim, M., and Mohamed, A.S. Tue . "Wrench tectonics in Abu Dhabi, United Arab Emirates". United States.
@article{osti_127641,
title = {Wrench tectonics in Abu Dhabi, United Arab Emirates},
author = {Ibrahim, M. and Mohamed, A.S.},
abstractNote = {Recent studies of the geodynamics and tectonic history of the Arabian plate throughout geologic time have revealed that Wrench forces played an important role in the structural generation and deformation of Petroleum basins and reservoirs of the United Arab Emirates. The tectonic analysis of Abu Dhabi revealed that basin facies evolution were controlled by wrench tectonics, examples are the Pre-Cambrian salt basin, the Permo-Triassic and Jurassic basins. In addition, several sedimentary patterns were strongly influenced by wrench tectonics, the Lower Cretaceous Shuaiba platform margin and associated reservoirs is a good example. Wrench faults, difficult to identify by conventional methods, were examined from a regional perspective and through careful observation and assessment of many factors. Subsurface structural mapping and geoseismic cross-sections supported by outcrop studies and geomorphological features revealed a network of strike slip faults in Abu Dhabi. Structural modelling of these wench forces including the use of strain ellipses was applied both on regional and local scales. This effort has helped in reinterpreting some structural settings, some oil fields were interpreted as En Echelon buckle folds associated with NE/SW dextral wrench faults. Several flower structures were interpreted along NW/SE sinistral wrench faults which have significant hydrocarbon potential. Synthetic and Antithetic strike slip faults and associated fracture systems have played a significant role in field development and reservoir management studies. Four field examples were discussed.},
doi = {},
journal = {AAPG Bulletin},
number = 8,
volume = 79,
place = {United States},
year = {Tue Aug 01 00:00:00 EDT 1995},
month = {Tue Aug 01 00:00:00 EDT 1995}
}