Results 221 to 230 of about 2,742,123 (281)

Coal Fines Migration, Deposition, and Output Simulation during Drainage Stage in Coalbed Methane Production

, 2021
Fracture and cleats development controls the permeability of coal reservoirs, while the migration of coal fines can block fractures and affect coalbed methane (CBM) production performance.
Wenlong Han, Yanbin Wang, Yong Li, X. Ni, Xiang Wu, Jianghao Yang, Shihu Zhao   +6 more
semanticscholar   +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

A Novel Method To Assess Stimulation of Sandstone Cores Damaged by Fines Migration

SPE Journal, 2021
Sandstone stimulation remains challenging because of formation heterogeneity and the sensitivity of clay minerals to acids such as hydrochloric acid (HCl) and mud acid [HCL/hydrofluoric acid (HF)].
A. Hanafy, H. Nasr-El-Din, Z. Heidari
semanticscholar   +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
openaire   +2 more sources

Predictive Modelling of CO2 Injectivity Impairment due to Salt Precipitation and Fines Migration During Sequestration

, 2021
Recent studies indicated that reactive interactions between carbon dioxide (CO2), brine, and rock during CO2 sequestration can cause salt precipitation and fines migration.
Muhammad Aslam Md Yusof, Mohamad Arif Ibrahim, M. A. Mohamed, Nur Asyraf Mr Akhir, I. Saaid, Muhammad Ubaid Ziaudin Ahamed, A. Idris, A. Matali   +7 more
semanticscholar   +1 more source

Effects of fines migration and reservoir heterogeneity on well productivity: analytical model and field cases

Journal of energy resources technology
Formation damage due to fines migration after water breakthrough during oil and gas production results in significant well productivity decline. A recent study derived an analytical model for fines migration during commingled water-oil production in ...
Thomas Russell, Cuong Nguyen, Grace Loi, S. R. Mohd Shafian, N. N. Zulkifli, A. Zeinijahromi, P. Bedrikovetsky   +6 more
semanticscholar   +1 more source

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
openaire   +2 more sources