Abstract
A new chemical process that, when used in conjuction with a widely applied secondary oil recovery procedure, could increase oil production significantly at a nominal cost has been patented by researchers at Magna Corp., an oil field chemicals manufacturer in Santa Fe Springs, California. The flooding process leads to enhanced oil recovery. A pretreating flood of a thin film spreading agent composition has present in it an acylated polyether polyol, to improve the recovery of oil by subsequent flooding with water or other aqueous systems such as viscous, aqueous polymer solutions, caustic solutions, and detergent solutions. It has been found that the ability of crude oil to wet and adhere to rock surfaces in the presence of water can be substantially reduced by injection of certain classes of organic compositions. By suitable application of these compounds ahead of or in conjunction with water and other aqueous fluids, significant increases in the recovery of the petroleum is possible.
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