Fluid characterization and phase behavior studies of oil from the frozen reservoir of Umiat Oil Field, Alaska
Thesis (M.S.) University of Alaska Fairbanks, 2011 Umiat oil field is the largest oil accumulation in National Petroleum Reserve (NPRA) No. 4 of Alaska. Shallow reservoir depths, low reservoir pressures, and low temperatures with most of the oil-producing zone in a continuous layer of permafrost are...
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ftunivalaska:oai:scholarworks.alaska.edu:11122/12693 2023-05-15T17:58:10+02:00 Fluid characterization and phase behavior studies of oil from the frozen reservoir of Umiat Oil Field, Alaska Shukla, Chinmay Patil, Shirish Dandekar, Abhijit Hanks, Catherine Mongrain, Joanna Khataniar, Santanu 2011-12 http://hdl.handle.net/11122/12693 en_US eng http://hdl.handle.net/11122/12693 Department of Petroleum Engineering Enhanced oil recovery Umiat Oil fields Production methods National Petroleum Reserve Master of Science in Petroleum Engineering Thesis ms 2011 ftunivalaska 2023-02-23T21:37:58Z Thesis (M.S.) University of Alaska Fairbanks, 2011 Umiat oil field is the largest oil accumulation in National Petroleum Reserve (NPRA) No. 4 of Alaska. Shallow reservoir depths, low reservoir pressures, and low temperatures with most of the oil-producing zone in a continuous layer of permafrost are unique characteristics that make Umiat reservoir unconventional and difficult to produce. However, unavailability of fluid characterization and phase behavior data needed for reservoir simulation studies pose challenges in developing an effective production strategy. Given the conspicuous lack of complete fluid data on Umiat oils and the unavailability of live oil samples from Umiat, an experimental study was undertaken to characterize and quantify phase behavior of an available small volume of dead Umiat oil. The oil composition characterized experimentally was found to be severely weatherized and not representative of original Umiat oil. Comparison of components in the dead oil sample origina one characterized by Pedersen method enabled determination of the mass of each component that would be need to be added to the weathered sample in order to compensate for the evaporated light ends. The re-created sample was subsequently used for constant composition expansion (CCE) laboratory PVT test. The bubble point pressure at reservoir temperatures, and densities and viscosities of single-phase reservoir fluid at various pressures were measured. The phase behavior of the pseudo live oil was also simulated using Peng-Robinson equations of state (PR-EOS). The EOS model was tuned with measured experimental data to simulate differential liberation tests in order to obtain the PVT data needed for reservoir simulation studies. Department of Energy Award Number DE- FC 26-08N T0005641 Thesis permafrost Alaska University of Alaska: ScholarWorks@UA Fairbanks Pedersen ENVELOPE(140.013,140.013,-66.668,-66.668) |
institution |
Open Polar |
collection |
University of Alaska: ScholarWorks@UA |
op_collection_id |
ftunivalaska |
language |
English |
topic |
Enhanced oil recovery Umiat Oil fields Production methods National Petroleum Reserve Master of Science in Petroleum Engineering |
spellingShingle |
Enhanced oil recovery Umiat Oil fields Production methods National Petroleum Reserve Master of Science in Petroleum Engineering Shukla, Chinmay Fluid characterization and phase behavior studies of oil from the frozen reservoir of Umiat Oil Field, Alaska |
topic_facet |
Enhanced oil recovery Umiat Oil fields Production methods National Petroleum Reserve Master of Science in Petroleum Engineering |
description |
Thesis (M.S.) University of Alaska Fairbanks, 2011 Umiat oil field is the largest oil accumulation in National Petroleum Reserve (NPRA) No. 4 of Alaska. Shallow reservoir depths, low reservoir pressures, and low temperatures with most of the oil-producing zone in a continuous layer of permafrost are unique characteristics that make Umiat reservoir unconventional and difficult to produce. However, unavailability of fluid characterization and phase behavior data needed for reservoir simulation studies pose challenges in developing an effective production strategy. Given the conspicuous lack of complete fluid data on Umiat oils and the unavailability of live oil samples from Umiat, an experimental study was undertaken to characterize and quantify phase behavior of an available small volume of dead Umiat oil. The oil composition characterized experimentally was found to be severely weatherized and not representative of original Umiat oil. Comparison of components in the dead oil sample origina one characterized by Pedersen method enabled determination of the mass of each component that would be need to be added to the weathered sample in order to compensate for the evaporated light ends. The re-created sample was subsequently used for constant composition expansion (CCE) laboratory PVT test. The bubble point pressure at reservoir temperatures, and densities and viscosities of single-phase reservoir fluid at various pressures were measured. The phase behavior of the pseudo live oil was also simulated using Peng-Robinson equations of state (PR-EOS). The EOS model was tuned with measured experimental data to simulate differential liberation tests in order to obtain the PVT data needed for reservoir simulation studies. Department of Energy Award Number DE- FC 26-08N T0005641 |
author2 |
Patil, Shirish Dandekar, Abhijit Hanks, Catherine Mongrain, Joanna Khataniar, Santanu |
format |
Thesis |
author |
Shukla, Chinmay |
author_facet |
Shukla, Chinmay |
author_sort |
Shukla, Chinmay |
title |
Fluid characterization and phase behavior studies of oil from the frozen reservoir of Umiat Oil Field, Alaska |
title_short |
Fluid characterization and phase behavior studies of oil from the frozen reservoir of Umiat Oil Field, Alaska |
title_full |
Fluid characterization and phase behavior studies of oil from the frozen reservoir of Umiat Oil Field, Alaska |
title_fullStr |
Fluid characterization and phase behavior studies of oil from the frozen reservoir of Umiat Oil Field, Alaska |
title_full_unstemmed |
Fluid characterization and phase behavior studies of oil from the frozen reservoir of Umiat Oil Field, Alaska |
title_sort |
fluid characterization and phase behavior studies of oil from the frozen reservoir of umiat oil field, alaska |
publishDate |
2011 |
url |
http://hdl.handle.net/11122/12693 |
long_lat |
ENVELOPE(140.013,140.013,-66.668,-66.668) |
geographic |
Fairbanks Pedersen |
geographic_facet |
Fairbanks Pedersen |
genre |
permafrost Alaska |
genre_facet |
permafrost Alaska |
op_relation |
http://hdl.handle.net/11122/12693 Department of Petroleum Engineering |
_version_ |
1766166713831784448 |