<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Luo, Peng</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Asphaltene precipitation and its effects on a solvent-based heavy oil recovery process</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">oil refining</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://search.proquest.com/docview/304960521</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">University of Regina</style></publisher><pub-location><style face="normal" font="default" size="100%">Regina, SK </style></pub-location><volume><style face="normal" font="default" size="100%">Petroleum Systems Engineering</style></volume><pages><style face="normal" font="default" size="100%">237 pages </style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">During a solvent-based heavy oil recovery process, such as vapour extraction (VAPEX), asphaltene precipitation occurs after a sufficient amount of solvent is dissolved into a heavy oil under certain reservoir conditions. Thus, such an in-situ deasphalted heavy oil has rather different physicochemical properties from those of the original heavy crude oil in the reservoir. In particular, it is much less viscous so</style></abstract><issue><style face="normal" font="default" size="100%">Ph. D.</style></issue><custom1><style face="normal" font="default" size="100%">Oil &amp; Other Non-renewable Fuels</style></custom1><custom3><style face="normal" font="default" size="100%">http://www.worldcat.org/oclc/865669220</style></custom3><custom4><style face="normal" font="default" size="100%">Science</style></custom4></record></records></xml>