Scopus记录号: 2-s2.0-84863149651
论文题名: Viscosity and other rheological properties of bitumen from the Upper Devonian Grosmont reservoir, Alberta, Canada
作者: Zhao Y. ; Machel H.G.
刊名: AAPG Bulletin
ISSN: 0149-1801
EISSN: 1558-9531
出版年: 2012
发表日期: 2012
卷: 96, 期: 1 起始页码: 133
结束页码: 153
语种: 英语
Scopus关键词: Aquifers
; Biodegradation
; Flow measurement
; Gas industry
; Hydrocarbons
; Hydrogeology
; Microbiology
; Non Newtonian liquids
; Oxygenation
; Rheology
; Velocity measurement
; Viscosity measurement
; Viscous flow
; Alberta , Canada
; Aquitards
; Characteristic viscosity
; Devonians
; Heavy oil and bitumens
; Low temperatures
; Microbial activities
; Newtonian fluids
; Non-Newtonian fluids
; Oil and Gas Industry
; Oil migration
; Oil water contact
; Rheological property
; Sample preparation
; Shear-thinning behavior
; Standard procedures
; Viscosity distribution
; Viscosity variations
; Zero shear viscosity
; Bituminous materials
; aquitard
; biodegradation
; bitumen
; Devonian
; gas industry
; heavy oil
; hydrocarbon migration
; hydrocarbon reservoir
; low temperature
; microbial activity
; mobility
; Newtonian fluid
; oil industry
; oil seep
; oxygenation
; reservoir characterization
; rheology
; viscosity
; Alberta
; Canada
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Viscosity is directly related to the mobility and quality of hydrocarbons in reservoirs, and its distribution is commonly heterogeneous. Therefore, viscosity has a great impact on the exploitation of heavy oil and bitumen reservoirs. Previous studies showed that viscosity measurements are problematic and are often inconsistent mainly because of the challenges of sample preparation and lack of a standard procedure for measuring viscosity in the oil and gas industry. This study aims to improve the characterization of reservoir viscosity by understanding the rheological properties of bitumen using bitumen samples from the Upper Devonian Grosmont reservoir, Alberta, Canada. This study shows that Grosmont bitumen is essentially a non-Newtonian fluid, exhibiting a distinctive shear-thinning behavior at low temperatures of less than 40° C. With increasing temperature, however, the bitumen changes from a non-Newtonian fluid to a Newtonian fluid. At low temperatures, the viscosity variations can be divided into four stages. A standard viscosity called "zero-shear viscosity" is obtained from the viscosity variations and can be used throughout the reservoir as characteristic viscosity for Grosmont bitumen. The viscosity distribution in the Grosmont reservoir is complex and appears to be stratigraphically related. Bitumen samples from formation boundaries tend to have higher viscosities, suggesting more severe biodegradation at these locations. Possible causes for the observed patterns in the Grosmont include (1) oil-water contacts migrating up and down over time; (2) oil migration and/or biodegradation controlled by aquitards that divide the reservoir into hydrostratigraphically separated units; and (3) differences in microbial activity, that is, aerobic versus anaerobic, possibly controlled by the level of oxygenation over time. Copyright ©; 2012. The American Assodation of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84863149651&partnerID=40&md5=bfa8f93ebf47ffdba3040146c0c9cbaa
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13371
Appears in Collections: 过去全球变化的重建 影响、适应和脆弱性 科学计划与规划 气候变化与战略 全球变化的国际研究计划 气候减缓与适应 气候变化事实与影响
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Recommended Citation:
Zhao Y.,Machel H.G.. Viscosity and other rheological properties of bitumen from the Upper Devonian Grosmont reservoir, Alberta, Canada[J]. AAPG Bulletin,2012-01-01,96(1)