A novel approach of crude oil demulsification | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article A novel approach of crude oil demulsification Orkhan Nabizada, Anvar Movsumzada This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8097937/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract This study investigates and proposes a novel approach for crude oil demulsification by employing a laboratory-scale reservoir model designed to simulate real reservoir conditions. Two distinct injection scenarios were examined to evaluate the effectiveness of chemical-assisted demulsification. In the first case, conventional produced water was utilized as the injected fluid to serve as a baseline for comparison. In the second scenario, the produced water was blended with varying concentrations of a selected chemical demulsifier and then injected into the reservoir model. This comparative approach enabled the evaluation of how demulsifier concentration influences both emulsion stability and oil recovery performance. Experimental results clearly demonstrated that the introduction of chemical demulsifiers into the produced water significantly improved in-situ emulsion destabilization. This enhancement resulted in a noticeable increase in oil recovery efficiency and a reduction in the free water content of the recovered product within the same operational period. Furthermore, the study identified optimal demulsifier concentrations that achieved maximum demulsification efficiency while minimizing overall chemical consumption. The findings indicate that incorporating chemical demulsifiers into the water injection process not only enhances subsurface separation but also enables the direct reinjection of produced water into the reservoir. This practice can minimize the need to transport large volumes of crude oil emulsions to onshore processing facilities, thereby reducing operational expenditures (OPEX) and improving overall field profitability. Demulsification In Situ Demulsification Petroleum Emulsions Reservoir model Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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