This paper was prepared for prescl]totion It the SPE Irrterno!inn~l Symposium on Formation Darnogc Control held in kfc~yctte, I.,)uisiami, 18-19 February 1998. This paper was selected for prcsel]tnli{~r]by an SPE Program Committee following review of inform~tion con[aincd in on :Lbstmc[ submitted by the author(s) Contents oof the paper, as presented, ha~te M)( heed reviewed by the Snciety of Petroleum Engineers and are subject to cor;e$tion by the author(s) The mil[erial, as presented, does no[ necessarily reflect any poslt!ur] of the S,>cicty of Petroleum Engineers, IIS officers, or members. PaWrs presented at SPE mettings arc subje~t tc~publication review by Editorial Committee of he Society of Petroleum Engitleers Electronic reproduction, distribution. or sfo[age of any pwt of this paper for r~>mmercial purposes witbu~tt the written crmsen[ of the Society of Petroleum Engineers is prnbibited Permissimr [o reprnduce in print is restricted to mr abstract of t]ot more tbtn 300 words; illustrations i~my not be copied, The abstract must conttin conspicuous acknowledgement of where mrd by whom the paper was presented. Write Librarim], SPE. P,O. Box 833836. Richwdson, TX 75083-3836, USA, fax 01-972-952-9435. AbstractThe different mechanisms leading to permeability damages due to particle deposition are analyzed under various situations relevant for oil production. The analysis is based on the relative importance (of the forces involved in the various deposition processes.In this way, different deposition regimes, characterized by the values of a few non-dimensional numbers, are defined. Among the major parameters, some are conventional and usually considered, such as particle and pore sizes, flow rate, particle concentration and suspending fluid viscosity.However, other parameters, which are often ignored, such as particle and pore shape and roughness, particle-particle and particle-pore wall interaction energies as well as pore surface physiochemical heterogeneity play an even more important role. In all cases, the regime determines deposition kinetics and the location~'here particles are deposited inside porous structure. As a consequence, determining both the deposition regime and the mechanism of permeability damage involved are prerequisites before any attempt to model and to predict permeability reduction. Due to the complexity of practical cases, experiments must be carried out to define the regime and the values of the major References and illustrations at end of paper parameters used as input in a suitable formation damage model.Comparisons between model predictions and experimental results obtained under well-controlled conditions show the cases where presently the permeability damage modeling is reliable.
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