ENHANCED OIL RECOVERY USING POLYACRYLATES/ACTF CROSSLINKED COMPOSITE: PREPARATION, CHARACTERIZATION AND COREFLOOD INVESTIGATION

Document Type

Article

Publication Date

Winter 10-1-2019

Abstract

Graphene oxide sheets have superior mechanical, thermal and electrochemical characteristics, in addition to their excellent conductivity and adsorption criteria that arise from two-dimensional honeycomb lattices structure. Moreover, their surface has a plentiful amount of hydrophilic oxygenated groups accessible for grafting of different macromolecules through H-bonding. Currently, chemical flooding by polymeric nanocomposites acquires incremental attention through various (EOR) operations. In this work, a novel polyacrylates/amorphous carbon thin film (ACTF) composite was synthesized by initiation polymerization in the presence of a crosslinking agent. The molecular arrangement was determined through spectroscopic analysis. Rheological and solution properties were estimated at relevant reservoir conditions as a function of shearing action, ionic strength, elastic properties, and temperature. Displacement runs were carried out through unconsolidated sand-pack model at nearby reservoir conditions in order to evaluate the efficiency of the designed composite during the flooding. The recovery factor calculated relative to the ejected oil volume during the process of composite flooding. Based on flooding experiments, the prepared composite exhibits favorable resistance to thermal and ionic degradation. Moreover, it exhibits improved elastic properties, and build high resistance and residual resistance factors in the porous medium. Moreover, the recovered oil reach 19.2% of residual oil saturation (SOr) after water flooding at slug concentration of 2000 ppm and 80 °C.

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