Exxon Production Research Company

Exxon Research and Engineering Company

Thomas L Ashcraft

Walter W Gale

Ronald L Reed

Rhoderick K Saunders

Paul Joseph Berlowitz

Alexis A Oswald

Edmund John Mozeleski

Darrell W Brownawell

Ram N Bhatia

Maura C Puerto

Alan Roy Katritzky

Morton Beltzer

Alan Mark Schilowitz

Max J Wisotsky

Larry D Talley

Gary F Teletzke

Manuel A Francisco

Kenneth M Webber

Haven S Aldrich

Margaret B Parnell

A turbo oil possessing improved rust inhibiting properties is provided by adding to the turbo oil base stock minor amounts of monobasic aminophosphates and dicarboxylic acids. The use of the recited combination produces unexpected superior rust resistance performance as compared to use of the individual components. The turbo oil benefitted by the additive is preferably a polyol ester-based oil.

Rust resistant turbo oils containing monobasic amino phosphates and

A lubricant composition which comprises a major amount of a lubricating oil base stock and a minor amount of a benzotriazole of the formula: ##STR1## where R and R.sup.1 are hydrocarbyl groups having from 1 to 30 carbon atoms. The load-carrying properties of the benzotriazoles of the formula (I) are activated by subjecting the lubricant composition to load-carrying conditions.

Stress activated high load additives for lubricant compositions

Distillate fuel compositions containing an amine salt of a sulfonic acid and a low volatility carrier fluid are effective in reducing the formation of intake valve deposits in internal combustion engines. Gasoline containing diamine salts in combination with a polyol ester carrier fluid is a particularly preferred distillate fuel composition.

Distillate fuels containing an amine salt of a sulfonic acid and a low

There are disclosed novel compositions of matter comprising monoalkylphenols prepared by selectively alkylating the olefin component of a thermally cracked sulfur-containing petroleum distillate derived from residua. The monoalkylphenols have certain ortho to para ratios and may be used to prepare a number of useful derivatives such as ethoxylated and propoxylated surfactants, sulfoalkylated products, sulfurized antioxidants, overbased phenates, dithiophosphate derivatives, formaldehyde reaction products and similar methylene bridged products which are useful demulsifiers.

Alkylphenols and derivatives thereof via phenol alkylation by cracked

A process for manufacturing monosulfonated alkylphenol polyalkylene oxide sulfonates is disclosed. The process produces the monosulfonated alkylphenol polyalkylene oxide sulfonates by a combination of sulfonation to produce a sulfate/sulfonate dianion, followed by a displacement of the sulfate to produce a disulfonate. The process produces a commercially viable disulfonate, which has a wide variety of commercial uses.

Process for manufacturing disulfonate surfactants

A method for recovering oil from a subterranean formation is disclosed wherein an aqueous surfactant solution is injected into the formation to reduce the mobility of gas in a gas-flooding process. The gas may include hydrocarbon gas, inert gas, carbon dioxide, and steam. The surfactant is represented by the general formula ##STR1## where R is a linear or branched chain alkyl group with n carbon atoms wherein n ranges from 0 to about 18, except that if the gas is steam n ranges from about 9 to about 30;

Oil recovery process using alkyl hydroxyaromatic dianionic surfactants

An oil recovery method is disclosed which uses a particular class of alkylaryl sulfonate surfactants. The surfactants are derived from an extracted aromatic feedstock consisting essentially of benzene, toluene, xylenes, and lesser amounts of ethylbenzene, trimethylbenzenes, and tetramethylbenzenes. The aromatic feedstock is then alkylated with linear .alpha.-olefins to favor second-carbon attachment, and sulfonated to result in surfactants having high oil solubilization parameters and whose phase behavior is substantially independent of temperature over 120.degree.-250.degree. Fahrenheit.

Oil recovery method using sulfonate surfactants derived from extracted

A method for recovering oil from a subterranean formation is disclosed wherein a novel solution is injected into and driven through the formation. The solution contains an effective amount of surface-active agent having the general formula

Propoxylated ethoxylated surfactants and method of recovering oil

A method is disclosed for recovering oil from a subterranean oil-bearing formation wherein a liquid solution in injected into and driven through the formation and oil is recovered from the formation. The liquid solution contains an effective amount of a surface-active agent having the general formula: ##EQU1## or ##EQU2## wherein R.sub.1 is a benzene, toluene, or xylene radical having a linear or branched alkyl substituent containing from 6 to 24 carbon atoms;

Oil recovery method using a surfactant

One embodiment includes an oil recovery process, more particularly a secondary or tertiary type crude oil recovery process utilizing a drive fluid to move a displacing fluid through a subterranean formation wherein the displacing fluid displaces crude oil therefrom and is driven through the formation by means of the drive fluid. The crude oil recovery process is improved by utilizing as the drive fluid a thickened, transparent, aqueous solution of a water-soluble sulfated, polyethoxylated C.sub.10 -C.sub.18 primary alcohol or alkylated phenol. The displacing fluid is generally an aqueous surfactant solution, a miscible displacing medium or most preferably a microemulsion. In a further embodiment, the water-soluble, polyethoxylated C.sub.10 -C.sub.18 primary alcohol or alkylated phenol is employed as a mobility control agent in a waterflood thereby increasing the sweep efficiency thereof.

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Baytown, TX, United States of America

Thomas L Ashcraft