Results 251 to 260 of about 101,695 (289)

Fines Migration in Two-Phase Flow

Journal of Petroleum Technology, 1990
Summary Fines migration is a recognized source of permeability reduction andproductivity decline in consolidated and unconsolidated cores. Previousinvestigations have shown that salinity, flow rate, pH, and temperaturesignificantly affect the process.
Amit K. Sarkar, Mukul M. Sharma
openaire   +2 more sources

Fines migration in porous media

AIChE Journal, 1987
AbstractA model developed by Sharma and Yortsos (1987a) is applied to the processes of fines migration and fines injection in a porous medium. The first is a problem frequently encountered in oil reservoirs when release of fines is triggered by physicochemical interactions of the porous formation with the injected fluids. The second may be a problem in
M. M. Sharma, Y. C. Yortsos
openaire   +1 more source

Formation Damage by Fines Breakage and Migration

SPE International Conference and Exhibition on Formation Damage Control, 2022
Abstract Fines migration is one of the most drastic causes for formation damage - the detached clays migrate and impairs well productivity. Two types of damaging clays are encountered in petroleum reservoirs: authigenic clays that grew on the grain surfaces during geological times, and detrital clays that have been broken off the grains ...
Abolfazl Hashemi, Sara Borazjani, Bryant Dang-Le, Grace Yin Loi, Cuong Nguyen Cao, Alex Badalyan, Pavel Bedrikovetsky   +6 more
openaire   +1 more source

Migration of fine-grained multimedia applications

Proceedings of the Posters and Demo Track, 2012
In order to leverage the potential of the device diversity of users, we aim to provide a middleware solution where parts of a multimedia application migrate to different devices and take advantage of more processing power and different I/O capabilities. The middleware is fully designed, and partially implemented and evaluated.
Hans Vatne Hansen, Francisco Javier Velázquez-García, Vera Goebel, Ellen Munthe-Kaas, Thomas Plagemann   +4 more
openaire   +1 more source

Fine material migration modelled by cellular automata

Granular Matter, 2021
Fine material migration occurs in cave mining during ore extraction and is often associated with ore dilution, which, in the worst case, can cause drawpoint closure. Additionally, the migration of fine material can imply safety issues, such as inrush of fines and, when mixed with water, mudrushes.
Raúl Castro, René Gómez, Lenin Arancibia   +2 more
openaire   +1 more source

Modelling Fines Mobilization, Migration and Clogging

Proceedings of SPE European Formation Damage Conference, 1995
Abstract We introduce and discuss a model for fines mobilization, migration and clogging in porous media based on the convection-diffusion equation. Our model contains two fields: The concentration of fine particles deposited on the pore walls and the concentration of fines suspended in the ambient liquid.
Kjell Erik Wennberg, George Batrouni, Alex Hansen   +2 more
openaire   +1 more source

Formation Damage by Fines Migration

2018
One of the widely spread causes of reservoir formation damage is fines migration. Migration of natural reservoir fines occurs during commingled production of oil or gas with low-salinity water, during high-rate production or injection, with low-salinity waterflooding and its combinations with enhancd oil recovery (EOR).
Russell, Thomas, Chequer, Larissa, Borazjani, Sara, You, Zhenjiang, Zeinijahromi, Abbas, Bedrikovetsky, Pavel   +5 more
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Fines Migration in Petroleum Reservoirs

1996
Production of petroleum is often hampered by damage to the permeability of reservoir rocks resulting from interaction of injected fluids with the porous rock formation. Fine particles of clays and other minerals are often found attached to the pore walls of reservoir rocks.
Brij Maini, Fred Wassmuth, Laurier L. Schramm   +2 more
openaire   +1 more source

Fine structure of shark leucocytes during chemotactic migration

Tissue and Cell, 1989
It has previously been demonstrated that peripheral blood leucocytes of the nurse shark (Ginglymostoma cirrhatum) are capable of in vitro chemotaxis. In the present study we have identified the chemotactic cells as the shark granulocyte and monocyte-macrophage. Chemotaxis assays were set up in blind well chambers.
S H, Smith, S D, Obenauf, D S, Smith
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True amplitude migration taking fine layering into account

55th EAEG Meeting, 1993
The central process in wave‐equation—based depth migration is inverse wavefield extrapolation. The commonly applied matched filter approach to inverse wavefield extrapolation ignores the angle‐dependent amplitude and phase distortions that are related to fine layering.
C. P. A. Wapenaar, F. J. Herrmann
openaire   +1 more source