Table C.35 Summary of shale and tight gas plays (compiled from Draper, 2007; Dunster et al., 2007; Munson, 2014; UPR, 2015; DNRM, 2017). Formation Age Environment Top depth Thickness Source rock(s) Source Source rock Play type Exploration status (m) (m) rock TOC maturity (%) Arrinthrunga late shallow marine 0–830 Max 975 Type II; type II-III Av 1.8 %; Immature-gas Shale gas, tight Unknown Formation Cambrian m 0–11% mature gas (Dulcie and west Toko synclines) Georgina late deep water 0–2,500 ~400 m Unknown Unknown Unknown ?Shale gas, tight Unknown Limestone Cambrian gas (east Toko Syncline) Arthur Creek middle dysoxic to 0–1,550 Max Type II; type II-III Av 1.6 %; Immature-gas Shale gas, tight Preliminary exploration (e.g. Formation Cambrian >438m 0–14% mature gas Petrofrontier, 2011; Central anoxic, deeper (Dulcie and Petroleum, 2017) marine west Toko synclines) Inca Shale middle marine 0–3,220 3–150 m Unknown Unknown Unknown ?Shale gas, tight Unknown (Burke River Cambrian gas Structural Belt) Beetle Creek middle marine 0–1,020 75–90 m Unknown Unknown Unknown ?Shale gas, tight Unknown Formation Cambrian gas (Burke River Structural Belt) Thorntonia middle peritidal to 0–3,200 23 m to Type II; type II-III Av 1.5%; Immature-gas Shale gas, tight Preliminary exploration (e.g. Limestone / Petrofrontier, 2011; Central Cambrian marine, >400 m 0– 8.3% mature gas Hay River Petroleum, 2017) Formation
Table C.35 Summary of shale and tight gas plays (compiled from Draper, 2007; Dunster et al., 2007; Munson, 2014; UPR, 2015; DNRM, 2017). Formation Age Environment Top depth (m) Thickness (m) Source rock(s) Source rock TOC (%) Source rock maturity Play type Exploration status Arrinthrunga Formation (Dulcie and west Toko synclines) late Cambrian shallow marine 0–830 Max 975 m Type II; type II-III Av 1.8 %; 0–11% Immature-gas mature Shale gas, tight gas Unknown Georgina Limestone (east Toko Syncline) late Cambrian deep water 0–2,500 ~400 m Unknown Unknown Unknown ?Shale gas, tight gas Unknown Arthur Creek Formation (Dulcie and west Toko synclines) middle Cambrian dysoxic to anoxic, deeper marine 0–1,550 Max >438m Type II; type II-III Av 1.6 %; 0–14% Immature-gas mature Shale gas, tight gas Preliminary exploration (e.g. Petrofrontier, 2011; Central Petroleum, 2017) Inca Shale (Burke River Structural Belt) middle Cambrian marine 0–3,220 3–150 m Unknown Unknown Unknown ?Shale gas, tight gas Unknown Beetle Creek Formation (Burke River Structural Belt) middle Cambrian marine 0–1,020 75–90 m Unknown Unknown Unknown ?Shale gas, tight gas Unknown Thorntonia Limestone / Hay River Formation middle Cambrian peritidal to marine, 0–3,200 23 m to >400 m Type II; type II-III Av 1.5%; 0– 8.3% Immature-gas mature Shale gas, tight gas Preliminary exploration (e.g. Petrofrontier, 2011; Central Petroleum, 2017)
gba_stage1_appendices_final_small.docx