Migrations of Fines in Porous Media by Kartic C. Khilar

By Kartic C. Khilar

This is the 1st booklet completely with regards to Migration of good debris in Porous Media. There are reasons for using this publication. First, the publication is meant to function a complete monograph for scientists and engineers enthusiastic about difficulties of abrasion, pollutants and plugging because of migration of fines in porous media. moment, the e-book is suggested for use as a reference ebook for classes provided at senior or graduate point at the issues of stream via porous media, soil erosion and toxins, or formation harm. The migration of good debris in porous media is an engineering crisis in oil construction, soil erosion, flooring water toxins and within the operation of clear out beds. consequently, the subject has been studied via researchers operating in a couple of disciplines. those stories in several disciplines are carried out, mostly, independently and as a result there's a few repetition and maybe extra importantly there's a loss of uniformity and coherence. those stories, however, supplement one another. to demonstrate the purpose, reflect on for instance the migration of excellent debris precipitated by way of hydrodynamic forces.

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1987b; Mohan, 1996b). 0001 M respectively. Such large differences in CSC have been addressed by Kia et aI. ( 1987a) who showed that the differences in CSC can be satisfactorily explained in terms of the changes in the zeta potentials resulting from changes in the valence and specific characteristics of cations (Kia et at, 1987b). The zeta potential of the kaolinite--CaCh system is (-10 mY) as compared (-30 mY) for the kaolinite - NaCI system. Likewise, the zeta potential of the cesium system is also significantly lower than that of the sodium system.

0 pit. --~----. l!. 50 Distance of separotion. 7. Total interaction energy plots for kaoline-pore surface system at aifferent pH (Vaidya and Fogler, 1990). f-o ~ 30 Calcium Percentage E- ;> -.... ~ t::

2 shows that the values of zeta potential vary from 0 to -10mV at high concentrations of sodium chloride solution and at low pH. The zeta potential increases to -40 mV at low concentrations and at high pH. 3 shows the surface charge per unit weight of sample of Berea sandstone as a function of different concentrations of KCI. The surface charge remains positive up to a particular pH value, and then it becomes increasingly negative with increasing pH. These variations are typical of those found in sandstones and have been satisfactorily explained by using an adsorptionsurface complex model (Shanna and Yen, 1984; Mohan, 1996a).

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