Continental Oil Company

Conoco Inc.

Roy C Sias

Olaf M Stokke

William L Groves, Jr

An improved sulfonate suitable for waterflooding is formed by sulfonating a blend of two alkyl aromatic feedstocks, one being a high molecular weight monoalkylbenzene while the second is a mixture of normal alkyl aromatic compounds such as monoalkyl benzenes, dialkylbenzenes, and diphenyl alkanes. This feedstock is either sulfonated after blending or before blending to provide a blended non-sulfonate/sulfonate ratio in the range of 0.10 to 0.25. The sulfonate effectiveness of this system increases as the non-sulfonate/sulfonate ratio increases.

Sulfonate for waterflooding

An anti-microbial composition consisting of ammoniated zinc compounds optionally formulated into surfactant formulations and toilet bars is presented.

Anti-microbial compositions

Sulfonates having an equivalent weight of about 300 to about 600 are saturated with carbon dioxide and injected into a petroliferous formation to improve a waterflood process.

Sulfonate water flood additives and method of using same

Waterflooding method using sulfonates

This invention is directed to stabilization of analytic standards comprising (a) an oil-soluble metal sulfonate wherein said metal is selected from the group consisting of molybdenum, vanadium, iron, boron, beryllium, tin, silver, copper, magnesium, or mixtures thereof, (b) a normally liquid hydrocarbon diluent and (c) a stabilizing amount of an oil-soluble amine compound.

Stabilized analytical standards

A process for producing oil-soluble anionic metal sulfonates is disclosed wherein an anionic metal acid anhydride or its corresponding hydrate is reacted with an oil-soluble sulfonic acid and a polyamine compound to produce the desired metal sulfonate. The metal constituent of the anionic metal acid anhydride is selected from the group consisting of silicon, molybdenum, vanadium, arsenic, phosphorus, selenium, boron and tellurium.

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Ponca City, OK, United States of America

Roy C Sias