Stability criteria for the design of graded polymer buffers

Autor:	Michel Quintard, Laurent Prouvost
Rok vydání:	1990
Předmět:	Economic optimization chemistry.chemical_classification Chromatography Berea sandstone Chemistry Polymer Polymer flow Geotechnical Engineering and Engineering Geology Stability (probability) Buffer (optical fiber) Volumetric flow rate Fuel Technology Composite material Dispersion (chemistry)
Zdroj:	Journal of Petroleum Science and Engineering. 3:333-343
ISSN:	0920-4105
DOI:	10.1016/0920-4105(90)90053-6
Popis:	The graded polymer buffer technique is often used to minimize the amount of polymer to be injected during polymer flooding. A drawback of this method is the impairment of mobility control due to viscous instabilities within the polymer slug itself. This paper presents new criteria for the economic optimization of polymer usage, while preserving the effeciency of the mobility control. The numerical model takes into account dispersion and time-dependent effects in the polymer concentration profile. Stability domains are presented as function of the injection parameters, i.e., the flow rate and the rate of decrease of the polymer concentration. The method is illustrated for the case of Xanthan polymer flow in Berea sandstone.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6c07dc7a4f76c88e8368bca15190a201 https://doi.org/10.1016/0920-4105(90)90053-6 Zobrazit plný text záznamu