RE: Beetaloo and Aus etc - Close Origin5 Oct 2018 21:32
PS02 Panel Session 02: Making Low Permeability Reservoirs Work Room 4-5, Level 1, Royal International Convention Centre
Moderator(s) David Close - Santos, Emma Tavener - Santos
Speaker(s) Elham Samari - Condor Energy Services, Jeremy Meyer - Ikon Science, Lau Hon Chung - National University of Singapore, Alexander Cote - Origin Energy, Ashish Datey - Schlumberger
There are points of commonality between "unconventional" CSG, shale gas and tight gas reservoirs; but there are also important distinctions. Australia has mature CSG fields in Queensland and tight-gas fields in a number of states; however, to date Australia has not progressed any shale projects past exploration despite relatively consistent efforts throughout the 2010s. Exploration models in the late 2000s to early 2010s, onshore Australia, drove a strong belief that large tight recoverable gas resources could be unlocked, however, subsequent appraisal has not yet resulted in economic projects. Elsewhere in the region China has shale gas production and Indonesia has significant shale gas potential. Understanding the potential of the majority of low permeability plays requires evaluation of:
a) How effectively hydraulic fracturing can be deployed - which is primarily a function of reservoir geomechanics and stresses (local and regional
b) How much gas is both in place and can be produced - which is a function of porosity, gas saturation, intrinsic permeability and the effectiveness of hydraulic fracturing (or any other artificial stimulation)
Geomechanical and petrophysical workflows specific to individual play types are critical to making good assessments during exploration projects and to optimising production during development projects. In this session, we will discuss different reservoir types and evaluation techniques and attempt to comprehensively cover the unconventional evaluation workflow. We will encourage participants to share lessons learnt and best practices and we will seek papers on specific reservoir types, workflows, or regions of exploration and/or development activity.