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By Laurier L. Schramm. LAURIER L. SCHRAMM, PhD, is Executive Director of the Petroleum Recovery Institute. He is also an adjunct professor of chemistry at the University of Calgary, where he leads a research group and lectures on applied colloid and interface chemistry.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.