scholarly journals Investigation of the dynamics of immiscible displacement of a ganglion in capillaries

Capillarity ◽  
2021 ◽  
Vol 4 (2) ◽  
pp. 31-44
Author(s):  
Amgad Salama ◽  
Jianchao Cai ◽  
Jisheng Kou ◽  
Shuyu Sun ◽  
Mohamed F. El-Amin ◽  
...  
Keyword(s):  
Immiscible Displacement

IMMISCIBLE DISPLACEMENT OF VISCOPLASTIC WAXY CRUDE OILS: A NUMERICAL STUDY

2017 ◽  
Vol 20 (5) ◽  
pp. 417-433 ◽  
Author(s):  
Ali Salehi-Shabestari ◽  
Mehrdad Raisee ◽  
Kayvan Sadeghy
Keyword(s):  
Numerical Study ◽  
Crude Oils ◽  
Immiscible Displacement ◽  
Waxy Crude ◽  
Waxy Crude Oils

scholarly journals Geometrically derived efficiency of slow immiscible displacement in porous media

2020 ◽  
Vol 102 (3) ◽  
Author(s):  
Carl Fredrik Berg ◽  
Per Arne Slotte ◽  
Hamid Hosseinzade Khanamiri
Keyword(s):  
Porous Media ◽  
Immiscible Displacement

Pore-scale investigation of immiscible displacement in rough fractures

2021 ◽  
pp. 109107
Author(s):  
Yaohao Guo ◽  
Lei Zhang ◽  
Yongfei Yang ◽  
Zhi Xu ◽  
Bo Bao
Keyword(s):  
Immiscible Displacement ◽  
Pore Scale

New Developments for the Description of Oil Leakages by Advective Migration From Submarine Pipelines

2009 ◽  
Vol 131 (3) ◽  
Author(s):  
Renan Martins Baptista ◽  
Ricardo Antonio Francisco Machado ◽  
Marintho Bastos Quadri ◽  
Ariovaldo Bolzan ◽  
André Lourenço Nogueira ◽  
...  
Keyword(s):  
Horizontal Plane ◽  
Immiscible Displacement ◽  
Preliminary Evaluation ◽  
Leakage Detection ◽  
New Developments ◽  
Gravitational Flow ◽  
The Third ◽  
Alternative Approach ◽  
High Standards ◽  
Good Agreement

The significant growth in offshore operations increases the risk of a pipeline rupture, even considering the high standards of safety involved. Throughout a submarine leakage, four different amounts of oil may be accounted. The first one is the oil volume released until the leakage detection. The second one is the volume leaked throughout mitigation initiatives (e.g., pump shutdown and valve closure). The third parcel is the amount released by gravitational flow. Finally, the fourth and last amount of oil is released due to the water-oil entrainment, generally known as advective migration. Normally, a considerable amount of oil is released in this step. It begins just after the internal pipeline pressure becomes equal to the external one. The present work continues to introduce a mathematical alternative approach, based on the theories of perturbation and unstable immiscible displacement, to accurately estimate the leakage kinetics and the amount of oil released by the advective migration phenomenon. Situations considering different hole sizes and thicknesses were tested experimentally and through simulations. Additional experiments were accomplished using smooth and rough edge surfaces, besides different slopes (using the horizontal plane as reference). Those experiments permitted a preliminary evaluation of the importance of these factors. The results obtained with the model showed good agreement with the experimental data in many situations considered.

The equations of immiscible viscous displacement in a porous medium

1981 ◽  
Vol 59 (1) ◽  
pp. 45-56 ◽  
Author(s):  
T. J. T. Spanos
Keyword(s):  
Porous Medium ◽  
Statistical Theory ◽  
Boundary Conditions ◽  
Initial Conditions ◽  
Continuum Theory ◽  
Immiscible Displacement ◽  
Macroscopic Scale ◽  
Inertial Terms ◽  
Inhomogeneous Porous Medium ◽  
Relative Motions

A statistical theory for the construction of the equations of viscous displacement in a porous medium is considered. This yields a continuum theory for immiscible displacement which can be applied to either a homogeneous or inhomogeneous porous medium. The relative motions of the fluid are considered in terms of the motion of surfaces of constant saturation which are smoothed surfaces at the macroscopic scale considered. The boundary conditions and initial conditions at the injection boundary are considered as well as the boundary conditions and breakthrough conditions at the recovery boundary and the side boundary conditions. The inertial terms are included in the equations and shown to be of importance in describing these initial conditions and the breakthrough conditions.

Immiscible displacement in a channel: simulations of fingering in two dimensions

2004 ◽  
Vol 27 (1) ◽  
pp. 13-22 ◽  
Author(s):  
Qinjun Kang ◽  
Dongxiao Zhang ◽  
Shiyi Chen
Keyword(s):  
Two Dimensions ◽  
Immiscible Displacement
Sign in / Sign up

Export Citation Format

Share Document