Dow Global Technolgoies LLC

Amit Katiyar

Troy E Knight

Pramod D Patil

Matthew E Crosley

Yifan Wang

Phillip D Kardenetz

Wanglin Yu

Peng Gao

Robert M Campbell

Biplab Mukherjee

Adam L Grzesiak

Susan K Falcone-Potts

Mechelle Ann Churchfield

Jacob Crosthwaite

Martha P Hernandez

Neeraj Rohilla

A surfactant composition including a CAOS and/or CAOS, and an effective amount of at least one solubilizing component so as to increase brine tolerance of the composition is disclosed. The solubilizing component comprises a mixture of where X is H, an alkali metal, alkaline earth metal or ammonium, and R is a linear C-Calkyl group. A method of recovering hydrocarbons from a reservoir during gas injection into said reservoir is also disclosed which involves at least periodically injecting the gas and a foam-forming surfactant composition into the reservoir so as to assist in the recovery of hydrocarbons from the reservoir.

Surfactant formulations for aqueous foam stability at high temperature and high salinity conditions

A surfactant composition including a CAOS and/or CAOS, and an effective amount of at least one solubilizing component so as to increase brine tolerance of the composition is disclosed. The solubilizing component comprises a mixture of

The present disclosure provides for a sandstone-containing oil reservoir additive composition that includes (a) a nonionic wettability alteration agent having Formula (I): and (b) an injection fluid. For Formula (I), R is an alkyl residue from a branched secondary alcohol initiator, where R can have a carbon number of C4 to C10, x is from 3 to 10 and y is from 1 to 20. The injection fluid can be selected from the group consisting of sea water, engineered water, injection brine, produced brine or combinations thereof. The nonionic wettability agent in the sandstone reservoir additive composition can be from 0.01 weight percent (wt %) to 20 wt % based on the total weight of the sandstone reservoir additive composition. The sandstone-containing oil reservoir additive composition can be used in enhance oil recovery operations, such as a waterflooding operation or a carbon dioxide flooding operation.

Enhanced crude oil recovery from subterranean crude oil-bearing sandstone reservoirs

A method of enhanced oil recovery that includes injecting a composition including an hyperbranched polyglycerol into an injection well in a subterranean oil-bearing reservoir, the hyperbranched polyglycerol being a primary alcohol that is a reaction product of a C2 to C25 carbon alcohol and a plurality of glycidols; and displacing oil in the subterranean oil-bearing reservoir using the composition.

Additive for enhanced oil recovery

Disclosed is a temperature stabilized aqueous wettability composition and method of use for the recovery of petroleum from subterranean formulations. Said aqueous wettability composition comprises a polyethylene oxide nonionic surfactant, a disulfonated anionic surfactant, and one or more alcohol.

Low-temperature stabilized surfactant blend for enhanced oil recovery

The present invention provides for a method of using a mixture of two or more nonionic surfactants for enhanced oil recovery and for an emulsion that includes carbon dioxide, a diluent and a mixture of two or more nonionic surfactants, where each nonionic surfactant is prepared with a double metal cyanide catalyst.

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Sugar Land, TX, United States of America

Amit Katiyar