Hydraulic fracturing - QGC

AquifersIn all QGC wells, cement is pumped into the well to form abarrier between the coal seams we are fracturing and aquifersabove or below the seam. This allows us to isolate the flow ofwater and gas from the target coal seam.If a fracture were to grow upwards from the coal seamand towards an aquifer, cement could be injected until anyfractures are effectively sealed. This may involve filling thewell with cement where it passed through the coal seam andplugging the well for abandonment.Around our operations, water bores can be placed in intervalsoverlying or sometimes very close to the coal seams fromwhich we are producing.If you are concerned that you have a water bore that might beaffected by our operations, please notify us so we may help toevaluate whether our operations will affect your bore.Typical solutionused in hydraulicfracturingADDITIVES1%About QGCQGC is a leading Australian coal seamgas explorer and producer focusedon developing world-class reserves inthe Surat Basin and Bowen Basin fordomestic and international supply.Our headquarters are in Brisbaneand we employ nearly 1000 people.In 2010, QGC produced about 20%of Queensland’s gas demand. QGCis wholly owned by BG Group, aleading oil and gas company withheadquarters in the United Kingdomand operations in more than 25countries.Our commitmentsWe seek to minimise the effects ofour operations on landholders andmake a positive contribution to theprotection of the environment.We run our business in accordancewith all government regulations,industry standards and the accessrules that we agree with landholders.Our staff, contractors and consultantsfollow QGC’s Code of Conduct,outlined in the ‘Information forLandholders’ booklet and availablevia our website: www.qgc.com.auContact detailsPlease contact QGC for more information.1800 030 443 (toll-free)email: community@qgc.com.auQGC Pty Limited275 George StBrisbane QLD 4000, Australia1186-0311