Dow Global Technolgoies LLC

Dow Technology Investments LLC

Rohm and Haas Company

Pramod D Patil

Max Markus Tirtowidjojo

Aaron W Sanders

Peng Gao

David J Brennan

Troy E Knight

Amit Katiyar

Susan K Falcone-Potts

Martha P Hernandez

Christina Zarth

Subrata Sen

Wanglin Yu

Timothy Charles Frank

Paul Aaron Gillis

Robert M Campbell

Zhe Zhou

Biplab Mukherjee

Nicole L Wagner

Matthew D Miller

Sayeed Abbas

Adam L Grzesiak

David L Frattarelli

Paul A Larsen

Mechelle Ann Churchfield

Joydeep Mukherjee

Jacob Crosthwaite

J Weldon Moore, Jr

Robert M Whittingslow

Brenna White

Neeraj Rohilla

Martha Hernandez

JW Moore

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 includes a foam-forming composition for use in enhanced oil recovery, and a method of using said foam-forming composition for recovering oil. The foam-forming composition of the present invention comprises a nonionic surfactant, in particular an alcohol-alkoxylate, and an anionic surfactant, in particular an alkyl diphenyloxide (di)sulfonate, where the foam-forming composition promotes a formation of a stable foam formed of a COand water.

Co-surfactant foam-forming composition 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.

Nonionic surfactant compositions for enhanced oil recovery

Embodiments of the present disclosure include modified nonionic surfactant formulations having a nonionic surfactant and a pour point depressant, where the modified nonionic surfactant formulations have a pour point of &#x2212;54&#xb0; C. to &#x2212;75&#xb0; C. In one or more embodiments, the modified nonionic surfactant formulations can be introduced into a flow of carbon dioxide, where the flow of carbon dioxide and the modified nonionic surfactant formulation are injected into an oil containing reservoir. In one or more embodiments, an emulsion of the carbon dioxide and the nonionic surfactant form in the oil containing reservoir, where the use of the pour point depressant provides minimal interference in forming the emulsion.

Modified nonionic surfactant formulations for enhanced oil recovery

At least one method to efficiently produce alkylene oxide from partial oxidation of hydrocarbons using a high efficiency heterogeneous catalyst in a fixed bed enclosed within a reaction vessel, and a reaction vessel constructed to facilitate the same.

Efficient fixed bed platform for production of ethylene oxide by partial oxidation of ethylene using catalyst of wide selectivity

Disclosed are processes and apparatuses for producing a crystalline product. The processes and apparatuses may extend the operational time of an evaporative crystallizer by providing an internal volume or large deposit inventory for fouling deposits to reside without impacting the unit operation.

Process and apparatus for forced circulation evaporative crystallization with large deposit inventory

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Sugar Land, TX, United States of America

Pramod D Patil