This project looked to understand and quantify aquifer reactions occurring due to re-injection of CSG water, and their impacts on water quality. This resulted in methods for predicting water quality changes resulting from CSG water re-injection.
This project looked to understand and quantify aquifer reactions occurring due to re-injection of CSG water, and their impacts on water quality.
This resulted in methods for predicting water quality changes resulting from CSG water re-injection.
Reports and papers
Deoxygenation Prevents Arsenic Mobilization during Deepwell Injection into Sulfide-Bearing Aquifers
Journal paper, December 2018.
Geochemical Response to Reinjection PDF 5 MB
The final outcome shows that injecting large volumes of treated CSG-produced water at suitable locations within the Surat Basin is unlikely to cause any harm to groundwater quality.
However, to achieve this the water has to be treated adequately to eliminate the risk of polluting groundwater with arsenic – a generally immobile toxic element that occurs naturally in some of the rock formations being considered for re-injection.
Final report, October 2016.
Extras
Can billions of litres of coal seam gas water be safely reinjected into the ground?
Online media coverage, 23 November 2016.
Project Progress
This project is now complete.
Project proposal PDF 197 KB
This is an outline of the project and proposed milestones.
Project order, July 2014.
Progress report PDF 385 KB
The project outline, any variations and research progress.
Progress report, June 2016.
GISERA related research
Reinjection of the coal seam gas water
This project looked to understand, quantify and manage clogging of injection wells during re-injection of CSG water permeates, brines and blends.