Dynamics of oil/water displacement in capillary tubes with periodically varying diameter

1982 ◽  
Vol 260 (8) ◽  
pp. 808-810 ◽  
Author(s):  
�. Kiss ◽  
J. Pint�r ◽  
E. Wolfram
2021 ◽  
Vol 33 (5) ◽  
pp. 958-969
Author(s):  
Pan-pan Han ◽  
Ke Chen ◽  
Dong-xi Liu ◽  
Yun-xiang You ◽  
Jin Wang

Heat Transfer ◽  
2020 ◽  
Author(s):  
Panpan Han ◽  
Ke Chen ◽  
Yunxiang You ◽  
Jingjing Zhang

Open Physics ◽  
2016 ◽  
Vol 14 (1) ◽  
pp. 703-713 ◽  
Author(s):  
Hao Yongmao ◽  
Lu Mingjing ◽  
Dong Chengshun ◽  
Jia Jianpeng ◽  
Su Yuliang ◽  
...  

AbstractAimed at enhancing the oil recovery of tight reservoirs, the mechanism of hot water flooding was studied in this paper. Experiments were conducted to investigate the influence of hot water injection on oil properties, and the interaction between rock and fluid, petrophysical property of the reservoirs. Results show that with the injected water temperature increasing, the oil/water viscosity ratio falls slightly in a tight reservoir which has little effect on oil recovery. Further it shows that the volume factor of oil increases significantly which can increase the formation energy and thus raise the formation pressure. At the same time, oil/water interfacial tension decreases slightly which has a positive effect on production though the reduction is not obvious. Meanwhile, the irreducible water saturation and the residual oil saturation are both reduced, the common percolation area of two phases is widened and the general shape of the curve improves. The threshold pressure gradient that crude oil starts to flow also decreases. It relates the power function to the temperature, which means it will be easier for oil production and water injection. Further the pore characteristics of reservoir rocks improves which leads to better water displacement. Based on the experimental results and influence of temperature on different aspects of hot water injection, the flow velocity expression of two-phase of oil and water after hot water injection in tight reservoirs is obtained.


2016 ◽  
Vol 82 (12) ◽  
pp. 953-978 ◽  
Author(s):  
Rogério Soares da Silva ◽  
Paulo Roberto Maciel Lyra ◽  
Ramiro Brito Willmersdorf ◽  
Darlan Karlo Elisiário de Carvalho

1980 ◽  
Vol 58 (12) ◽  
pp. 1729-1733
Author(s):  
D. S. Pal

The nonlinear behavior of instabilities (fingers) in a specific oil–water displacement process, which includes the effects of capillary pressure in a heterogeneous porous medium, has been analysed from a statistical viewpoint. It is shown that, based on theories available for capillary pressure, the statistical model does not lead to any stabilization of the fingers.


Author(s):  
B.A. Suleimanov ◽  
◽  
F.S. Ismayilov ◽  
O.A. Dyshin ◽  
N.I. Huseynova ◽  
...  

1969 ◽  
Vol 47 (3) ◽  
pp. 319-324 ◽  
Author(s):  
A. P. Verma

The stabilization of fingers in a specific oil–water displacement process with capillary pressure has been statistically discussed for a given heterogeneous porous medium. The equation of motion has been solved by a perturbation method. It is shown that the perturbation solution does produce "stable" fingers in one special case corresponding to the investigated problem.


2007 ◽  
Author(s):  
Francisco Javier Rosado-Vazquez ◽  
Edgar Rangel-German ◽  
Fernando Rodriguez-De La Garza

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