Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/51322
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Predicting brittle cap-seal failure of petroleum traps: An application of 2D and 3D distinct element method |
Author: | Camac, B. Hunt, S. Boult, P. |
Citation: | Petroleum Geoscience, 2009; 15(1):75-89 |
Publisher: | Geological Soc Publ House |
Issue Date: | 2009 |
ISSN: | 1354-0793 2041-496X |
Statement of Responsibility: | Bronwyn A. Camac, Suzanne P. Hunt and Peter J. Boult |
Abstract: | Previous research shows the importance of understanding the relationship between fault geometry and current applied tectonic stresses in the prediction of critically stressed faults and their propensity for fluid flow via generated fracture networks along and/or around the fault plane. Data collected from the Penola Trough, onshore Otway Basin, South Australia shows that a more complex 3D failure mechanism may be active, whereby the cap-seal may fracture preferentially to fault failure. An emerging application for a two- and three-dimensional distinct element numerical modelling technique, at the play and prospect level, respectively, which assists in assessing pre-drill seal integrity, is presented by way of two case studies from the Penola Trough. Sensitivity studies at the prospect scale show how (1) fault rock strength, (2) fault zone width and (3) the interaction of two fault sets generates local perturbations in the regional stress field. At the play scale, the depth to which a younger active fault set propagates can be explained by the distribution of stress within the rock mass generated by the present-day far-field stress acting on older regionally significant faults. This work offers a workflow and an additional technique to predict cap-seal integrity prior to drilling. © 2009 EAGE/Geological Society of London. |
Keywords: | stress modelling faults distinct element method fractures fault rock Otway Basin Penola Trough stress rotation UDEC 3DEC |
DOI: | 10.1144/1354-079309-796 |
Published version: | http://dx.doi.org/10.1144/1354-079309-796 |
Appears in Collections: | Aurora harvest 5 Australian School of Petroleum publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.