First Ever Field Pilot on Alaska's North Slope to Validate the Use of Polymer Floods for Heavy Oil EOR a.k.a Alaska North Slope Field Laboratory (ANSFL)
Alaska’s high viscosity oil resources that range between 20–30+ billion barrels represent about a third of known North Slope original oil in place (OOIP). These resources are primarily concentrated in the Schrader Bluff formation (also called West Sak on the Western North Slope) and Ugnu reservoirs...
Main Authors: | , , , , , |
---|---|
Language: | unknown |
Published: |
2023
|
Subjects: | |
Online Access: | http://www.osti.gov/servlets/purl/1916626 https://www.osti.gov/biblio/1916626 https://doi.org/10.2172/1916626 |
id |
ftosti:oai:osti.gov:1916626 |
---|---|
record_format |
openpolar |
spelling |
ftosti:oai:osti.gov:1916626 2023-07-30T03:55:36+02:00 First Ever Field Pilot on Alaska's North Slope to Validate the Use of Polymer Floods for Heavy Oil EOR a.k.a Alaska North Slope Field Laboratory (ANSFL) Dandekar, Abhijit Zhang, Yin Ning, Samson Seright, Randy Bai, Baojun Wang, Dongmei 2023-06-12 application/pdf http://www.osti.gov/servlets/purl/1916626 https://www.osti.gov/biblio/1916626 https://doi.org/10.2172/1916626 unknown http://www.osti.gov/servlets/purl/1916626 https://www.osti.gov/biblio/1916626 https://doi.org/10.2172/1916626 doi:10.2172/1916626 02 PETROLEUM 42 ENGINEERING 99 GENERAL AND MISCELLANEOUS 2023 ftosti https://doi.org/10.2172/1916626 2023-07-11T10:18:34Z Alaska’s high viscosity oil resources that range between 20–30+ billion barrels represent about a third of known North Slope original oil in place (OOIP). These resources are primarily concentrated in the Schrader Bluff formation (also called West Sak on the Western North Slope) and Ugnu reservoirs and are categorized as “viscous oils” and “heavy oils” owing to their in-situ viscosities between 5–10,000 cP and up to a million+ cP respectively. The viscous oil deposits are relatively deeper (2,000 – 5,000 ft), whereas the heavy oils are somewhat shallower (2,000 – 4,000 ft). The typically shallow depths and the proximity to the continuous permafrost results in relatively lower formation temperatures and pressures, and consequently higher viscosities. The vertical depth vs. viscosity delineated in Paskvan et al. (2016) differentiates the viscous and heavy oils. As depicted in Paskvan et al. (2016), currently the main focus (referred to as “developing”) is on the viscous oils in the Schrader Bluff formation in the Milne Point Unit (MPU). Notwithstanding this Alaska North Slope (ANS) specific categorization, we use the industry adopted, all-inclusive term “heavy oil” for all high viscosity oils. Resource characterization and additional details can be found in topical publications of Paskvan et al. (2016) and Targac et al. (2005). Despite the vast resource base, the development pace, vis-à-vis the production of heavy oils has been very slow and limited due to multiple factors such as cost, logistics, challenging arctic environment, poor waterflood sweep efficiency due to mobility contrasts, and significantly high minimum miscibility pressures (MMP). Most importantly, typical or standard thermal methods that are commonplace elsewhere (Canada, California) are inapplicable due to the continuous permafrost. As a consequence, cumulative production of heavy and viscous oils is a little over 1% of OOIP slope wide and currently, there is hardly any production from Ugnu. However, on a broader level, these unfavorable factors ... Other/Unknown Material Alaska North Slope Arctic north slope permafrost Alaska SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic Canada Milne Point ENVELOPE(-100.852,-100.852,73.835,73.835) |
institution |
Open Polar |
collection |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
02 PETROLEUM 42 ENGINEERING 99 GENERAL AND MISCELLANEOUS |
spellingShingle |
02 PETROLEUM 42 ENGINEERING 99 GENERAL AND MISCELLANEOUS Dandekar, Abhijit Zhang, Yin Ning, Samson Seright, Randy Bai, Baojun Wang, Dongmei First Ever Field Pilot on Alaska's North Slope to Validate the Use of Polymer Floods for Heavy Oil EOR a.k.a Alaska North Slope Field Laboratory (ANSFL) |
topic_facet |
02 PETROLEUM 42 ENGINEERING 99 GENERAL AND MISCELLANEOUS |
description |
Alaska’s high viscosity oil resources that range between 20–30+ billion barrels represent about a third of known North Slope original oil in place (OOIP). These resources are primarily concentrated in the Schrader Bluff formation (also called West Sak on the Western North Slope) and Ugnu reservoirs and are categorized as “viscous oils” and “heavy oils” owing to their in-situ viscosities between 5–10,000 cP and up to a million+ cP respectively. The viscous oil deposits are relatively deeper (2,000 – 5,000 ft), whereas the heavy oils are somewhat shallower (2,000 – 4,000 ft). The typically shallow depths and the proximity to the continuous permafrost results in relatively lower formation temperatures and pressures, and consequently higher viscosities. The vertical depth vs. viscosity delineated in Paskvan et al. (2016) differentiates the viscous and heavy oils. As depicted in Paskvan et al. (2016), currently the main focus (referred to as “developing”) is on the viscous oils in the Schrader Bluff formation in the Milne Point Unit (MPU). Notwithstanding this Alaska North Slope (ANS) specific categorization, we use the industry adopted, all-inclusive term “heavy oil” for all high viscosity oils. Resource characterization and additional details can be found in topical publications of Paskvan et al. (2016) and Targac et al. (2005). Despite the vast resource base, the development pace, vis-à-vis the production of heavy oils has been very slow and limited due to multiple factors such as cost, logistics, challenging arctic environment, poor waterflood sweep efficiency due to mobility contrasts, and significantly high minimum miscibility pressures (MMP). Most importantly, typical or standard thermal methods that are commonplace elsewhere (Canada, California) are inapplicable due to the continuous permafrost. As a consequence, cumulative production of heavy and viscous oils is a little over 1% of OOIP slope wide and currently, there is hardly any production from Ugnu. However, on a broader level, these unfavorable factors ... |
author |
Dandekar, Abhijit Zhang, Yin Ning, Samson Seright, Randy Bai, Baojun Wang, Dongmei |
author_facet |
Dandekar, Abhijit Zhang, Yin Ning, Samson Seright, Randy Bai, Baojun Wang, Dongmei |
author_sort |
Dandekar, Abhijit |
title |
First Ever Field Pilot on Alaska's North Slope to Validate the Use of Polymer Floods for Heavy Oil EOR a.k.a Alaska North Slope Field Laboratory (ANSFL) |
title_short |
First Ever Field Pilot on Alaska's North Slope to Validate the Use of Polymer Floods for Heavy Oil EOR a.k.a Alaska North Slope Field Laboratory (ANSFL) |
title_full |
First Ever Field Pilot on Alaska's North Slope to Validate the Use of Polymer Floods for Heavy Oil EOR a.k.a Alaska North Slope Field Laboratory (ANSFL) |
title_fullStr |
First Ever Field Pilot on Alaska's North Slope to Validate the Use of Polymer Floods for Heavy Oil EOR a.k.a Alaska North Slope Field Laboratory (ANSFL) |
title_full_unstemmed |
First Ever Field Pilot on Alaska's North Slope to Validate the Use of Polymer Floods for Heavy Oil EOR a.k.a Alaska North Slope Field Laboratory (ANSFL) |
title_sort |
first ever field pilot on alaska's north slope to validate the use of polymer floods for heavy oil eor a.k.a alaska north slope field laboratory (ansfl) |
publishDate |
2023 |
url |
http://www.osti.gov/servlets/purl/1916626 https://www.osti.gov/biblio/1916626 https://doi.org/10.2172/1916626 |
long_lat |
ENVELOPE(-100.852,-100.852,73.835,73.835) |
geographic |
Arctic Canada Milne Point |
geographic_facet |
Arctic Canada Milne Point |
genre |
Alaska North Slope Arctic north slope permafrost Alaska |
genre_facet |
Alaska North Slope Arctic north slope permafrost Alaska |
op_relation |
http://www.osti.gov/servlets/purl/1916626 https://www.osti.gov/biblio/1916626 https://doi.org/10.2172/1916626 doi:10.2172/1916626 |
op_doi |
https://doi.org/10.2172/1916626 |
_version_ |
1772819766171402240 |