TITLE:
Effect of Fluid Flow Characteristics on Migration of Nano-Particles in Porous Media
AUTHORS:
Saeed Sourani, Mohammad Afkhami, Yousef Kazemzadeh, Hooman Fallah
KEYWORDS:
Fines Migration, Reservoir Damage, Inter-Particle Forces, Electrical Double Layer, Injection Rate
JOURNAL NAME:
Geomaterials,
Vol.4 No.3,
June
25,
2014
ABSTRACT: Inter-particle and molecular forces are of most important forces
affecting fines migration. Investigating the impact of these types of forces
requires information about electrical properties of constitutive component and
Nano-sized solids. Surface potential is a well-known parameter, which can be
used to measure aforementioned forces. The force balance among electrical,
gravity, drag and buoyance forces tracing on a particle can be estimated using
fluid properties and physical properties of reservoir such as surface
potential, pore size distribution and fine size distribution. The task is to
set these forces at conditions that fine migration does not take place. This
paper investigates the impact of several parameters that could influence
pertinent forces. Effect of ionic strength of flowing fluid is taken into
account to evaluate Debye length that determines double layer forces. The
impact of injection rate on a parameter named erosion number isalso studied. The results of this study show that how introducing salts and
injection rate can affect stability of fines on their locations.