Sedimentology and ichnology of the Lower Triassic Montney Formation in the Pedigree-Ring/Border-Kahntah River area, northwestern Alberta and northeastern British Columbia (original) (raw)

Very fine-grained sandstone beds in the lowermost Triassic (lower Induan = Griesbachian) lower Montney Formation are the primary reservoir lithology in the Pedigree, Ring-Border and Kahntah River gas fields of northwestern Alberta and northeastern British Columbia. Hydrocarbon production from Pedigree and Ring-Border fields occurs primarily from well-sorted, low-angle to hummocky and trough cross-stratified sandstone beds. Hydrocarbon production from Kahntah River field occurs primarily from highly bioturbated silty/muddy sandstone with hummocky and trough cross-stratified sandstone interbeds.