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OFR 2015-07

Investigation of Odours and Emissions from Heavy Oil and Bitumen in the Peace River Oil Sands Area: 3-D Geological Modelling and Petroleum Geochemistry

Abstract: In this report we present the results from the investigation of geological and geochemical contributions to odours and emissions from heavy oil and bitumen production in the Peace River Oil Sands (PROS) Area in Alberta. This study was initiated in response to a formal proceeding into these odours and emissions by the Alberta Energy Regulator (AER) and the panel's final report (Decision 2014 ABAER 005: Report of Recommendations on Odours and Emissions in the Peace River Area), and included the creation of a three-dimensional (3-D) geological model, designing and implementing a petroleum sampling and analysis program, and defining geological plays and heavy oil and bitumen deposit and zone boundaries. Key findings from this study are as follows: - In the PROS area, the 3-D zone in the subsurface where the heavy oil and bitumen appears to have the highest probability for increased odours and emissions is related to depth, oil properties, and heat treatment during production, regardless of the geological play or source rock. - While both reduced sulphur compounds (RSCs) and volatile organic compounds (VOCs) are present in the produced oil sands designated heavy oil and bitumen, there is no correlation between their concentrations and the oil's source rock. - There is a trend of increasing RSC concentrations released from the oil sands designated heavy oil and bitumen as the temperature difference between original reservoir temperatures and production temperatures increases. Place Keywords alberta athabasca oil sands area canada cold lake oil sands area peace river oil sands area 73e 73l 73m 74d 74e 83e 83f 83g 83h 83i 83j 83k 83l 83m 83n 83o 83p 84a 84b 84c 84d 84e 84f 84g 84h Theme Keywords 3d models bitumen emissions geochemical geological play geology heavy oil isotopes migration pathways odours oil sand petroleum petroleum chemistry red earth highlands reduced sulphur compounds source rock volatile organic compounds

Anderson, S.D.A.  Filewich, C.  Lyster, S.  MacCormack, K.E.  2015-08-04