| OIL CHEM TECHNOLOGIES Patent applications |
| Patent application number | Title | Published |
|---|
| 20120004431 | 2-Alkyl alkoxylated alcohol sulfonate - 2-alkyl alkoxylated alcohol sulfonate surfactants having the structure R—O—(PO)x(EO)yCHR'CHR′CH | 01-05-2012 |
| 20110120707 | Process for oil recovery using multifunctional anionic surfactants - A process for the recovery of oil from subterranean reservoirs by injecting an aqueous fluid containing from about 0.05 to about 2.0% by weight of a surfactant of structure | 05-26-2011 |
| 20110028355 | Non-estrogenic alkylphenol derivatives - A method of making phenol and alkylphenol ethoxylates non-estrogenic by inserting 1 mole of propylene oxide onto the phenolic group before proceeding with the addition of ethylene oxide or mixtures of ethylene and propylene oxide. The final phenolic products can be further reacted to form sulfates, sulfonates, phosphate esters, condensed alkylphenol alkoxylates and other derivatives of alkylphenol or phenol. Non-estrogenic phenol and alkylphenol alkoxylates and their derivatives have been found to be excellent salt tolerant, high temperature stable surfactants for oil recovery from subterranean reservoirs. These products are also useful in forming emulsions of heavy crude for transportation through pipelines. | 02-03-2011 |
| 20080302531 | Process for recovering oil from subterranean reservoirs - This invention involves a process for recovering oil from a subterranean reservoir where an injection fluid containing one or more primary surfactants of the structure below along with one or more co-surfactants, solvent and optionally a viscosifier and one or more alkalis injected into one or more injection wells and the oil is recovered from one or more producing wells. | 12-11-2008 |
