Article: Investigation of novel extracted surfactant on rheological properties of heavy crude oil Journal: International Journal of Oil, Gas and Coal Technology (IJOGCT) 2017 Vol.14 No.4 pp.354 - 368 Abstract: Naturally extracted surfactant from tropical Indian plant Madhuca longifolia was used to enhance flow properties of heavy crude oil through pipelines. Experimental measurements include viscosity, yield stress, viscoelastic properties, pour point, SARA analysis, microscopic studies and FTIR studies. Experimental verification of Power Law model was justified. Crude oil surfactant mixtures tend to behave like Newtonian fluid as surfactant concentration was increased from 500 to 2,000 ppm. Viscosity of crude with 2,000 ppm surfactant at 30°C was almost same as that of pure crude at 50°C. Presence of surfactant significantly reduced elastic and complex moduli of heavy crude oil at 30°C. Yield stress of crude oil reduced from 0.9 to 0.017 Pa with surfactant addition at 30°C. Microscopic studies showed surfactant addition reduced size of wax crystals appreciably. FTIR studies implied that aldehydic and amine groups are responsible for high viscosity and their concentration reduced after addition of surfactant Madhuca longifolia. [Received: August 4, 2015; Accepted: November 28, 2015] Inderscience Publishers - linking academia, business and industry through research

Title: Investigation of novel extracted surfactant on rheological properties of heavy crude oil

Authors: Ravindra Kumar; Shirsendu Banerjee; Ajay Mandal; Tarun Kumar Naiya

Addresses: Department of Petroleum Engineering, Indian School of Mines, Dhanbad – 826004, Jharkhand, India ' Department of Petroleum Engineering, Indian School of Mines, Dhanbad – 826004, Jharkhand, India ' Department of Petroleum Engineering, Indian School of Mines, Dhanbad – 826004, Jharkhand, India ' Department of Petroleum Engineering, Indian School of Mines, Dhanbad – 826004, Jharkhand, India

Abstract: Naturally extracted surfactant from tropical Indian plant Madhuca longifolia was used to enhance flow properties of heavy crude oil through pipelines. Experimental measurements include viscosity, yield stress, viscoelastic properties, pour point, SARA analysis, microscopic studies and FTIR studies. Experimental verification of Power Law model was justified. Crude oil surfactant mixtures tend to behave like Newtonian fluid as surfactant concentration was increased from 500 to 2,000 ppm. Viscosity of crude with 2,000 ppm surfactant at 30°C was almost same as that of pure crude at 50°C. Presence of surfactant significantly reduced elastic and complex moduli of heavy crude oil at 30°C. Yield stress of crude oil reduced from 0.9 to 0.017 Pa with surfactant addition at 30°C. Microscopic studies showed surfactant addition reduced size of wax crystals appreciably. FTIR studies implied that aldehydic and amine groups are responsible for high viscosity and their concentration reduced after addition of surfactant Madhuca longifolia. [Received: August 4, 2015; Accepted: November 28, 2015]

Keywords: Madhuca longifolia; viscosity; complex modulus; microscopic study; yield stress; viscoelastic behaviour; FTIR; naturally extracted surfactant; rheological properties; heavy crude oil; rheology; tropical plants; India; fluid flow; oil pipelines; pour point; SARA analysis; power law model; wax crystals; aldehydic groups; amine groups.

DOI: 10.1504/IJOGCT.2017.083067

International Journal of Oil, Gas and Coal Technology, 2017 Vol.14 No.4, pp.354 - 368

Received: 22 Aug 2015
Accepted: 28 Nov 2015
Published online: 20 Mar 2017 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article

Title: Investigation of novel extracted surfactant on rheological properties of heavy crude oil

Keep up-to-date