@inproceedings{Holford:2013,
author = {Holford, SP and Schofield, N and Jackson, CAL and Magee, C and Green, PF and Duddy, IR},
title = {Impact of igneous intrusions on source and reservoir potential in prospective sedimentary basins},
url = {http://www3.imperial.ac.uk/people/c.jackson},
year = {2013}
}

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TY  - CPAPER
AB  - Many prospective basins in rifted continental margins, including those located along the western Australian continental margin, contain extrusive and intrusive rocks generated during rifting and particularly during continental breakup. Intrusive igneous systems in rifted margin basins are typically characterized by networks of interconnected, laterally and vertically extensive sheet complexes (e.g. sills and dykes) that transgress basin stratigraphy. The presence of igneous rocks thus represents an important geological risk in hydrocarbon exploration. Constraining the distribution, timing and intrusive mechanisms of the igneous rocks is essential to reducing exploration risk. This paper focuses on two key sources of risk associated with the intrusion of igneous rocks into prospective sedimentary basins: (1) interconnected, low-permeability sheet intrusions (e.g. sills and dykes) that can compartmentalise significant volumes of source and reservoir rock, thereby reducing migration efficiencies; and (2) igneous-related hydrothermal circulation systems that can be highly mineralising and thus detrimental to reservoir quality. It is also important to highlight that igneous rocks may also be beneficial to petroleum systems. For example, the thermal effects of igneous intrusions may in some cases be sufficient to place immature source rocks within the oil window. The impacts of igneous intrusion on the prospectivity of rift basins along the western Australian continental margin are examined, with particular focus on frontier exploration areas such as the Exmouth Plateau and Browse Basin.
AU  - Holford,SP
AU  - Schofield,N
AU  - Jackson,CAL
AU  - Magee,C
AU  - Green,PF
AU  - Duddy,IR
PY  - 2013///
TI  - Impact of igneous intrusions on source and reservoir potential in prospective sedimentary basins
UR  - http://www3.imperial.ac.uk/people/c.jackson
ER  - 

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