Colloidal dispersion gels for in-depth permeability modification
Baghir A. Suleimanov, Elchin F. Veliyev, N. V. Naghiyeva
Abstract
In this study, we describe the synthesis, characterization and evaluation of colloidal dispersion gels (CDGs) to be used as in-situ fluid diversion. The chemical stability of CDGs was improved by modifying the polymer mixture. The CDGs were synthesized by free radical crosslinking polymerization using 2-acrylamido-2-methylpropane sulfonic acid (AMPS), Acrylic acid (AAc), partially hydrolyzed polyacrylamide (HPAM) and chromium triacetate crosslinker. The effect of crosslinker/polymer concentration, salinity, gelation time, rheological behavior, particle size distribution of CDGs, also their thermo-chemical stabilities and resistance/residual resistance factor (RRF) were investigated.
Topics & Concepts
PolyacrylamideMaterials sciencePolymerAcrylic acidDispersion (optics)Chemical engineeringDispersion stabilityPolymerizationColloidSulfonic acidDispersion polymerizationHydrolysisRadical polymerizationCationic polymerizationPolymer chemistryMonomerChemistryComposite materialOrganic chemistryOpticsPhysicsEngineeringEnhanced Oil Recovery TechniquesPetroleum Processing and AnalysisHydrocarbon exploration and reservoir analysis