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• W4240769037 abstract "Injectivity of Sulfonated Polymers Under North Sea Field Conditions Christine Noik; Christine Noik Search for other works by this author on: This Site Google Scholar Annie Audibert; Annie Audibert Search for other works by this author on: This Site Google Scholar Phillipe Delaplace Phillipe Delaplace Search for other works by this author on: This Site Google Scholar Paper presented at the SPE/DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, April 1994. Paper Number: SPE-27769-MS https://doi.org/10.2118/27769-MS Published: April 17 1994 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Noik, Christine, Audibert, Annie, and Phillipe Delaplace. Injectivity of Sulfonated Polymers Under North Sea Field Conditions. Paper presented at the SPE/DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, April 1994. doi: https://doi.org/10.2118/27769-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE Improved Oil Recovery Conference Search Advanced Search AbstractOil field operations for polymer flooding under drastic conditions need suitable commercial products. This study focuses on the flow behavior of sulfonated polyacrylamides specially designed to be used under high temperature conditions. The experiments were performed under North sea conditions, i.e. temperature 90 C, seawater brine and North Sea field cores.The main consequences of the introduction of sulfonate units in a polyacrylamide chain are the improvement of thermal stability and shear resistance and a low level of adsorption, with no major problem of retention during core flow.IntroductionIndustrial development of sulfonated polyacrylamides which have some interesting propeflies has led to consider their use for oil field applications. This study follows a previous one where the main properties in solution of these products have been evaluated under high temperature up to 120 C and seawater brine.Thermal stability studies and viscosity measurements indicated good performances of the sulfonated polyacrylamide in comparison with rigid molecule such as scleroglucan and a hydrolyzed polyacrylamide. Up to 100 C under deoxygenated atmosphere, high quality sulfonated polymer solutions presented a good thermal stability over several months.The objective of this work is to evaluate the performances of the polymer solutions in terms of viscosifying power versus polymer concentration, resistance to shear degradation and flow behavior through a reservoir core i.e propagation and loss of product due to retention.EXPERIMENTALMaterialsThe polymers selected were two types of sulfonated polymers: Hostamer from Hoescht is a terpolymer (vinyl sulfonate / acrylamide / vinylamide) and ANx provided by S.N.F (Floerger) is a vinyl sulfonate/acrylamide copolymer where x is the vinyl sulfonate group content in the molecule. A classical hydrolyzed polyacrylamide (HPAM) with a hydrolysis degree of 28% and the nonionic polysaccharide Scleroglucan provided by Sanofi were also studied. The polymer solutions were obtained after dilution of the broth or powder and ultrafiltration through a membrane having a 20,000 molecular weight cut off. The solvents used were 20 g/l NaCl brine or reconstituted seawater, the composition of which is: 27.80 g/l NaCl, 9.54 g/l MgCl2,6H2O, 7.73 g/l Na2SO4, l0H2O, 1.62 g/l CaCl2, 2H2O, 0.03 g/l SrCl2,6H2O.P. 377^ Keywords: polyacrylamide, injection, concentration, polymer solution, scleroglucan, resistance, polymer concentration, viscosity, sulfonated polymer, experiment Subjects: Improved and Enhanced Recovery, Chemical flooding methods This content is only available via PDF. 1994. Society of Petroleum Engineers You can access this article if you purchase or spend a download." @default.
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• W4240769037 title "Injectivity of Sulfonated Polymers Under North Sea Field Conditions " @default.
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