V43D-4912:
Geochemical Characterization of Bitumen Carbonate from Grosmont Formation, Alberta: Well 10-12-93-24W4 and 11-33-94-22W4
Thursday, 18 December 2014
Young-woo Kil, Chonnam National University, Energy and Resources Engineering, Gwangju, South Korea, Junghwan Seol, Chonnam National University, Gwangju, South Korea, Ji-Hoon Kim, KIGAM Korea Institute of Geoscience and Mineral Resources, Daejeon, South Korea and Jiyoung Choi, KIGAM, Daejeon, South Korea
Abstract:
Carbonate bitumen, one of the unconventional oils, has been attracting attention as an energy resource, which can substitute petroleum resources. Various researchers have been investigating carbonate rocks to exploit bitumen reservoirs. Grosmont Formation, located in northern Alberta, is one of the largest carbonate reservoirs in the world. We conducted inorganic geochemical analysis about two-carbonate rock cores of Grosmont Formation (well 10-12-93-24W4, 11-33-94-22W4), obtained from Core Research Center (CRC) in Canada to investigate the characteristics and origin of dolomite in the Grosmont Formation. Grosmont Formation consists of four carbonate units, UG3, UG2, UG1 and LG, with three shale beds, SB3, SB2 and SB1. Major and trace elements, and isotope compositions of dolomites from UG and LG units indicate that UG dolomites were formed within a near surface environment under evaporitic condition, whereas LG dolomites were formed in a diagenetic environment. UG and LG dolomites might be formed at temperature ranging from 43.9 °C to 56.7 °C with Devonian seawater.
