Tuesday March 26, 1:00pm

Dr Scott Mildren

Research Fellow - Petroleum Geomechanics, NCPGG, The University of Adelaide
 

Fault Analysis Seal Technology: Recent Developments and Future Directions  
 

Abstract

FAST (Fault Analysis Seal Technology) is a methodology for assessing fault reactivation in terms of the in situ stress field. Despite its growing use there has never been a detailed calibration of FAST predictions to see if they match exploration experience. Fault reactivation predictions are compared with evidence for hydrocarbon leakage such as Sniffer, HRDZs, ALF and GOI in the Bonaparte Basin. The likelihood of fault reactivation is calibrated by this empirical evidence to formulate a quantitative assessment of reactivation risk.

The FAST methodology is not restricted to assessing fault reactivation only. It may also be used to predict the likelihood of natural fractures being open and hydraulically conductive (fracture susceptibility). An example of fracture susceptibility from the ASPO Hard Rock Laboratory is presented. FAST also forms the basis of a methodology used to risk top seal integrity in terms of brittle failure.

Biography of the Speaker

Scott Mildren completed his PhD at the University of Adelaide in 1997 and took up a position as structural geologist with Z&S (Asia) Ltd. (now Baker Atlas Geoscience). At Z&S he interpreted resistivity and acoustic image data with application to in situ stresses and fracture characterisation. Scott joined the NCPGG in 1999. His current research addresses various petroleum related geomechanical issues such as fault and top seal integrity, fractured reservoirs and wellbore stability. Scott is a member of AAPG, ASEG, PESA and SPE.