AGL Energy Limited · ASX:AGL
AGL Energy — Technical Presentation (May 2013)
12 slides from AGL Energy's technical presentation, May 16, 2013
Slide 1: AGL's Gloucester Gas Project - Gloucester Community Forum
AGL’s Gloucester Gas Project Gloucester Community Forum John Ross| Hydrogeology Manager Upstream Gas 16 May 2013 | External
Slide 2: Water matters
2 Water matters • Water resources • Produced water management
Slide 3: Primary water issues at Gloucester
Primary water issues at Gloucester 3 Protecting water resources and produced water management › Basin wide water studies: » Geology and geological structure » Hydrogeology and hydrology » Data and monitoring networks › Connectivity of surface water and groundwater: » Beneficial aquifer leakage » Ben
Slide 4: What have we done?
What have we done? 4 Activities prior to project approval (February 2011) » Gloucester Gas Project » 16 May 2013 » AGL External
Slide 5: What have we done?
What have we done? 5 Activities post project approval (February 2011 to May 2013) » Gloucester Gas Project » 16 May 2013 » AGL External
Slide 6: What is underway?
What is underway? 6 Activities will be completed pre-construction » Gloucester Gas Project » 16 May 2013 » AGL External
Slide 7: The Gloucester Basin is the most-studied geological basin in Australia
The Gloucester Basin is the most-studied 7 geological basin in Australia › By end of 2013, AGL will have – » Extensive seismic and aeromagnetic surveys » >55 monitoring locations across the basin » Comprehensive conceptual model, water balance and numerical model of whole basin › AGL studies will co
Slide 8: Water resources with & without CSG
Water resources with & without CSG 8 Without any AGL activities: › Lateral flow, negligible vertical flow at depth › Natural water balance (prelim) for northern basin: Inflow - rainfall : ~194,000 ML/year Outflows in ML/year: Groundwater Mining use: 500 Surface water use: 24 use: 1,000 Surface runof
Slide 9: Water resources with & without CSG
Water resources with & without CSG 9 With AGL Stage 1 CSG activities: › Increased lateral flow in coal seams, some increase in vertical flow › With CSG water balance (very prelim) for northern basin: Inflow - rainfall : ~194,000 ML/year Outflows in ML/year: Groundwater use: Mining use: 500 Surface A
Slide 10: No impact on surface water flows: catchment flow comparisons
No impact on surface water flows 10 Catchment flow comparisons 160000 152,283 Average monthly flows (ML) 140000 120000 100000 80000 60000 46,502 40000 20000 8,926 9,000 6,996 60 0 Maximum AGL Avon River at Barrington River at Gloucester River at Gloucester River at Manning River at groundwater Wauki
Slide 11: No impact on surface water flows: catchment salt load comparisons
No impact on surface water flows 11 Catchment salt load comparisons 25000 › Produced water = Na-Cl-HCO3 water 22,838 » Old and brackish Average monthly salt loads 20000 » Not toxic, not contaminated, no nasties › Raw water for town supply = Na-Ca-Mg-Cl-HCO3 (tonnes) 15000 water » Modern and fresh 10
Slide 12: » Gloucester Gas Project » 16 May 2013 » AGL External
12 » Gloucester Gas Project » 16 May 2013 » AGL External