Method of recovering petroleum from a subterranean reservoir incorporating an acylated polyether polyol
The method is disclosed for recovering petroleum from a subterranean reservoir. An acylated polyether polyol, the polyether polyol is derived from the reaction of an alkylene oxide and a member selected from polyols, amines, polyamines and amino alcohols containing from about 2 to about 10 active hydrogens. The acylated polyether polyol is the reaction product of said polyether polyol and a member selected from the class consisting of mono- and polybasic carboxylic acids, acid anhydrides, and iso -, diiso-, and polyisocyanates. The acylated polyether polyol at about 25 C is: (A) less than about 1% by volume soluble in water and in isooctane; (B) having a solubility parameter in the range of between about 6.9 and about 8.5; and (C) spreading at the interface between distilled water and refined mineral oil to form a film having a thickness no greater than about 20 angstroms at a spreading pressure of about 16 dynes per cm.
- Assignee:
- Magna Corp
- Patent Number(s):
- US 4315545
- OSTI ID:
- 5493434
- Country of Publication:
- United States
- Language:
- English
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Method of recovering petroleum from a subterranean reservoir incorporating polyepoxide condensates of resinous polyalkylene oxide adducts and polyether polyols
Method of recovering petroleum from a subterranean reservoir incorporating a polyether polyol
Related Subjects
020300* -- Petroleum-- Drilling & Production
ADDITIVES
ALCOHOLS
AQUEOUS SOLUTIONS
DISPERSIONS
ENERGY SOURCES
ENHANCED RECOVERY
FILMS
FLUID INJECTION
FOSSIL FUELS
FUELS
GLYCOLS
HYDROXY COMPOUNDS
MINERAL OILS
MIXTURES
OIL WELLS
OILS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
PETROLEUM
POLYETHYLENE GLYCOLS
POLYMERS
RECOVERY
SOLUTIONS
WATERFLOODING
WELLS