نتایج جستجو برای: Fractional flow curve

تعداد نتایج: 657503  

Journal: :journal of chemical and petroleum engineering 2014
falode olugbenga adeyemi abiodun fadairo adesina

the immiscible displacement of oil by water through a porous and permeable reservoir rock can be described by the use of a fractional flow curves (fw versus sw). water flooding project parameters can be obtained from the fractional flow curve. however, developing a representative fractional flow curve for a specific reservoir can be quite challenging when fluid and special core analysis data is...

Adeyemi Abiodun Fadairo Adesina, Falode Olugbenga

The immiscible displacement of oil by water through a porous and permeable reservoir rock can be described by the use of a fractional flow curves (fw versus Sw). Water flooding project parameters can be obtained from the fractional flow curve. However, developing a representative fractional flow curve for a specific reservoir can be quite challenging when fluid and special core analysis data is...

Journal: :iranian journal of oil & gas science and technology 2014
maryam ghorbani mohammad reza khorsand mohsen masihi

the performance of water flooding can be investigated by using either detail numerical modeling or simulation, or simply through the analytical buckley-leverett (bl) model. the buckley-leverett analytical technique can be applied to one-dimensional homogeneous systems. in this paper, the impact of heterogeneity on water flooding performance and fractional flow curve is investigated. first, a ba...

Maryam Ghorbani, Mohammad Reza Khorsand Mohsen Masihi,

The performance of water flooding can be investigated by using either detail numerical modeling or simulation, or simply through the analytical Buckley-Leverett (BL) model. The Buckley-Leverett analytical technique can be applied to one-dimensional homogeneous systems. In this paper, the impact of heterogeneity on water flooding performance and fractional flow curve is investigated. First, a ba...

2016
A. J. Nazari S. Honma

Abstract—This paper evaluates oil displacement by water in Hauterivian sandstone reservoir of Kashkari oil field in North of Afghanistan. The core samples of this oil field were taken out from well No-21st, and the relative permeability and fractional flow are analyzed. Steady state flow laboratory experiments are performed to empirically obtain the fractional flow curves and relative permeabil...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده مهندسی مکانیک 1392

دراین پایان نامه اعمال شرط مرزی ورود وخروج به روشisphبا الگوریتم fractional step بررسی می شود و ایده ای ارائه می گردد که همه ی الزامات ورودی و خروجی جریان برای روش مبنا ذره ای sph در آن لحاظ می شود. ابتدا سعی می شود نحوه ی اعمال شرایط مرزی ورود/ خروج، برای جریان داخل یک لوله افقی توضیح داده شود ونتایج با حل تحلیلی صحت سنجی می شود. در ادامه از آن برای مدل کردن جریان بر روی پله وارون(backward-fac...

Journal: :Circulation. Cardiovascular interventions 2012
Tim P van de Hoef Froukje Nolte Peter Damman Ronak Delewi Matthijs Bax Steven A J Chamuleau Michiel Voskuil Maria Siebes Jan G P Tijssen Jos A E Spaan Jan J Piek Martijn Meuwissen

BACKGROUND The assessment of functional coronary lesion severity using intracoronary physiological parameters such as coronary flow velocity reserve and the more widely used fractional flow reserve relies critically on the establishment of maximal hyperemia. We evaluated the diagnostic accuracy of the stenosis resistance index during nonhyperemic conditions, baseline stenosis resistance index, ...

Journal: :acta medica iranica 0
mohammad hasan namazi department of cardiology, cardiovascular research center, shahid beheshti univercity of medical sciences, tehran, iran. morteza safi department of cardiology, cardiovascular research center, shahid beheshti univercity of medical sciences, tehran, iran. hosein vakili department of cardiology, cardiovascular research center, shahid beheshti univercity of medical sciences, tehran, iran habibollah saadat department of cardiology, cardiovascular research center, shahid beheshti univercity of medical sciences, tehran, iran. saeed alipour department of cardiology, cardiovascular research center, shahid beheshti univercity of medical sciences, tehran, iran. abdulkarim alhuthaifi department of cardiology, school of medicine, shahid beheshti university of medical sciences, tehran, iran.

myocardial fractional flow reserve (ffr) is a new index of the functional significance of intermediate coronary stenoses that is calculated from pressure measurements made during coronary arteriography. the aim of this study was to evaluate the correlation between non-hyperemic coronary pressure dicrotic notch and fractional flow reserve (ffr). a consecutive of 114 patients (73 men and 41 women...

2016
ELEONORA CINTI CARLO SINESTRARI ENRICO VALDINOCI

In this paper we consider the evolution of sets by a fractional mean curvature flow. Our main result states that for any dimension n > 2, there exists an embedded surface in R evolving by fractional mean curvature flow, which developes a singularity before it can shrink to a point. When n > 3 this result generalizes the analogue result of Grayson [18] for the classical mean curvature flow. Inte...

This paper investigates the axial unsteady flow of a generalized Burgers’ fluid with fractional constitutive equation in a circular micro-tube, in presence of a time-dependent pressure gradient and an electric field parallel to flow direction and a magnetic field perpendicular on the flow direction. The mathematical model used in this work is based on a time-nonlocal constitutive equation for s...

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