Drag reduction of asphaltenic crude oils
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United States of America Patent
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May 28, 2013
Grant Date -
Nov 29, 2012
app pub date -
Aug 11, 2011
filing date -
Dec 22, 2006
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Abstract
A system for reducing pressure drop associated with the turbulent flow of asphaltenic crude oil through a conduit. The crude oil has a high asphaltene content and/or a low API gravity. Such reduction in pressure drop is achieved by treating the asphaltenic crude oil with a high molecular weight drag reducing polymer that can have a solubility parameter within about 20 percent of the solubility parameter of the heavy crude oil. The drag reducing polymer can also comprise the residues of monomers having at least one heteroatom.
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