Experimental Study on the Effect of Inhibitors on Wax Deposition
Muhammad Ali Theyab* and Pedro Diaz
London South Bank University, 103 Borough Road, SE1 0AA, London, UK
- *Corresponding Author:
- Muhammad Ali Theyab
London South Bank University
103 Borough Road, SE1 0AA, London, UK
E-mail: [email protected]
Received date: November 01, 2016; Accepted date: November 20, 2016; Published date: November 28, 2016
Citation: Theyab MA, Diaz P (2016) Experimental Study on the Effect of Inhibitors on Wax Deposition. J Pet Environ Biotechnol 7:310. doi: 10.4172/2157-7463.1000310
Copyright: © 2016 Theyab MA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
A challenge facing offshore oil production is wax deposition. It leads to increases in operational and remedial costs while suppressing oil production. Wax inhibitors are one of the mitigation technologies that had been examined its influence on crude oil viscosity, pour point and wax appearance temperature (WAT). The performance of some of wax inhibitors was evaluated to determine their effects on the pour point, wax appearance temperature and the viscosity of the crude oil using the programmable Rheometer rig at gradient temperatures (55°C) and shear rate 120 1/s before and after adding 1000 ppm and 2000 ppm of inhibitors to the crude oil. Three different inhibitors which were not tested before were prepared in the lab of this study. These inhibitors works well compared with its original components. The first inhibitor was coded Mix01 by mixing polyacrylate polymer (C16-C22), and copolymer + acrylated monomers. The reduction of pour point of the waxy crude oil was up to a 16.6ºC at 2000 ppm concentration and this reduces the crude oil viscosity to about 61.9% at a seabed temperature of 4ºC. The second inhibitor was coded Mix02, by mixing polyacrylate polymer (C16-C22), alkylated phenol in heavy aromatic naphtha, and copolymer dissolved in solvent naphtha. At 2000 ppm, the reduction of pour point of the crude oil up to a 15.9ºC and decreases the viscosity to 57% at a seabed temperature of 4ºC. Finally, the third inhibitor was Mix03, by mixing polyacrylate polymer (C16-C22), and brine (H2O + NaCl). At 1000 ppm concentration, the reduction of pour point of the oil was up to a 14.4ºC and reduced the viscosity to 52.5% at a seabed temperature of 4ºC. This unique blend of the inhibitory properties and significant reduction in pour point temperatures and crude oil viscosity is providing an original development in wax mitigation technology.