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Role of Asphaltene in Stability of Water-in-oil Model Emulsions: The Effects of Oil Composition and Size of the Aggregates and Droplets
Download2021-03-16
Water-in-oil (W/O) emulsions are the most common type of emulsions handled in petroleum processes. It is thought that the field emulsions are primarily stabilized by asphaltene-resin micelles and several research works have studied the stability mechanisms of asphaltene in crude emulsions....
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2014-01-01
M. Haftani, A. Nouri, M. Moosavi, B. Bohloli, M.R. Maleki Javan
Size DependencyIn this study, uniaxial compressive strength (UCS) of limestone rocks was estimated by indentation testing on small rock fragments. Here, the effects of rock fragment dimensions (particularly area and thickness) on indentation indices were studied. The investigation shows size...
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2013-01-01
M. Haftani, B. Bohloli, M. Moosavi, A. Nouri, M. Moradi, M.R. Maleki Javan
In this Paper, UCS of limestone rock was determined by indentation testing on rock fragments. The size of the fragments was in the range of 2 to 5 mm, which is within the size range of drill cuttings. Here, scatter of the data was investigated by calculating the coefficient of variation that...
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A Novel Sand Control Testing Facility to Evaluate the Impact of Radial Flow Regime on Screen Performance and its Verification
Download2020-05-11
Mohammad Haftani, Omar Kotb, Phuong H. Nguyen, Chenxi Wang, Mahmoud Salimi, Alireza Nouri
Optimum design of the sand control devices in oil sand reservoirs plays a vital role in minimizing the sand production and increasing the reservoir productivity in Steam-Assisted Gravity Drainage (SAGD) operations. Various sand control testing facilities have been developed to evaluate the...
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2021-01-01
Rahman Miri, Mohammad Haftani, Alireza Nouri
This paper reviews the state-of-the-art experimental and theoretical methods on fines migration around Steam Assisted Gravity Drainage (SAGD) wellbores. The in-situ migratory particles can deposit in the pore space and result in pore throat plugging within the porous medium. This process...
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A Set of Graphical Design criteria for Slotted Liners in SteamAssisted Gravity Drainage Production Wells
Download2018-01-01
Chenxi Wang, Yu Pang, Mahdi Mahmoudi, Mohammad Haftani, Mahmoud Salimi, Vahidoddin Fattahpour, Alireza Nouri
Slotted liners have been widely used in steam-assisted gravity drainage (SAGD) wells owing to their low cost and superior mechanical integrity. Multiple factors affect the performance of slotted liners, such as particle size distribution (PSD) of formation sands, aperture size, slot density,...
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A drive for better air service: How air service imbalances across neighboring regions integrate air and highway demands
Download2019-11-07
Between 2000-2010, newly merged U.S. airlines decreased service to airports in small and midsized metropolitan regions, opting to consolidate their operations at high-value airport hubs (passenger transfer points). At this point travelers living in small and mid-sized regions likely began...
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2019-11-12
Airspace Flow Programs (AFPs) assign ground delays to flights in order to limit flow through capacity constrained airspace regions. AFPs have been successful in controlling traffic with reasonable delays, but a new program called the Combined Trajectory Options Program, or CTOP, is being explored...
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2019-02-01
Ayele, Selam, Fayek, Aminah Robinson
Productivity measurement is a concern for both construction practitioners and researchers. In construction, productivity can be measured at three levels: activity, project, and industry. At the project level, previous studies focused on measuring the productivity of specific activities. In...
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A framework to assess the costs and benefits of advanced work packaging in industrial construction
Download2019-03-01
Halala, Yonas Samuel, Fayek, Aminah Robinson
The term advanced work packaging (AWP), coined by the Construction Industry Institute (CII), refers to a disciplined process for project planning and execution; it was developed to address challenges such as cost and schedule overruns in the industrial construction sector. Case studies conducted...