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Synthesis of Acryloylated Starch-G-Poly Acrylates Crosslinked Polymer Functionalized by Emulsified Vinyltrimethylsilane Derivative as a Novel EOR Agent for Severe Polymer Flooding Strategy

Synthesis of Acryloylated Starch-G-Poly Acrylates Crosslinked Polymer Functionalized by Emulsified Vinyltrimethylsilane Derivative as a Novel EOR Agent for Severe Polymer Flooding Strategy

A N El-Hoshoudy

Int J Biol Macromol. 2019 Feb 15;123:124-132.

PMID: 30439420

Abstract:

Starch is a natural polysaccharide with reasonable biodegradable properties, which grafted with vinyl monomers through different initiators to be applied in enhanced oil recovery (EOR) techniques. Several authors stated about starch modification through copolymerization and grafting of different monomers, however, these derivatives have some drawbacks related to bacterial biodegradation, ionic and thermal aging under severe reservoir conditions. The present study reported the preparation of grafted acryloylated starch with acrylamide/acrylic acid monomers and vinyltrimethylsilane through initiation copolymerization with the aid of quaternary ammonium-based surfmer. The chemical analysis generated by various spectroscopic analysis comprising IR, NMR, meanwhile particles distribution estimated through DLS. The embedded silica through a polymer matrix photographed by TEM, SEM and EDX elementary analysis, and the thermal effect determined by thermal gravimetric analysis. The rheological analysis estimated relative to shear degradation, ionic strength, and thermal aging at imitated reservoir environment. Flooding runs performed on linear non-consolidated sandstone model at nearly practical field conditions, where the displaced oil by polymer effect was recorded through the volumetric collector. The flooding tests designate that the synthesized starch-g-copolymer is prospering for chemical flooding applications under severe reservoir conditions, and achieve a recovery factor of 46% Sor.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP754052	Vinyltrimethylsilane		754-05-2	Price

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