Shell Oil Comapny

Baker Hughes Corporation

Shell Usa, Inc.

Shell Internationale Research Maatschappij, B.v.

Daniel Lee Crosby

Gordon T Rivers

Gritienus Haandrikman

Bennett M Richard

Edward O'Malley

Roger W Fincher

Larry A Watkins

Gregory J Hatton

Paul M McElfresh

Zhongxin Huo

Vu Thieu

Michael David Greaves

Gaurav Bhatnagar

Aftab Khokhar

Zachary Mark Aman

Eric Freemantle May

Martin John Fernie

Shane Andrew Morrissy

A hydrate inhibitor comprising a boronic acid moiety and associated methods and compositions.

Boronic hydrate inhibitors

A hydrate inhibitor comprising a sulfolane derivative and associated methods and compositions.

Anti-agglomerate hydrate inhibitors

A system for producing and transporting crude oil, comprising a well for producing the crude oil; a processing facility for processing the crude oil; and a pipeline traversing at least a portion of the distance between the well and the processing facility, wherein at least a portion of the pipeline travels through an atmosphere having a temperature less than 20&#xb0; C., wherein the pipeline comprises a coating on an inner surface of the pipeline, and wherein the crude oil comprises a surfactant additive.

Hydrate deposit inhibition with surface-chemical combination

A method for inhibiting formation of hydrocarbon hydrates in mixtures of water and a hydrate-forming guest molecule involves adding a reaction product to the mixtures in an effective amount to inhibit formation of the hydrocarbon hydrates under conditions otherwise effective to form the hydrocarbon hydrates in the absence of the reaction product. The product is made by the reaction of first reactant that is an amine or polyamine, or alcohol or polyalcohol, with a second, aldehyde reactant and a third reactant that is an alcohol or polyalcohol or, an amide or polyamide. Preferably, if the first and third reactants are both an alcohol or both a polyalcohol, they are not the same. A non-limiting example of a suitable amine would be a fatty alkyl amine, while formaldehyde would be a non-limiting of a suitable aldehyde and polyacrylamide would be a suitable third reactant.

Gas hydrate inhibitors

A method for inhibiting formation of hydrocarbon hydrates in mixtures of water and a hydrate-forming guest molecule has been discovered that involves adding a composition to the mixtures in an amount that is effective in inhibiting formation of the hydrocarbon hydrates under conditions otherwise effective to form the hydrocarbon hydrates in the absence of the reaction product. The composition includes at least one dendrimeric compound having a number average molecular weight of at least 1,000 atomic mass units (amu); and at least one small molecular weight species having less than 1,000 amu, selected from the group consisting of polyalkyleneimine, polyallylamine, starch, sugars, and polymers or copolymers of vinyl alcohol or allyl alcohol; and, optionally, at least one surfactant.

Method and compositions for inhibiting formation of hydrocarbon hydrates

Gas hydrates, particularly natural gas hydrates e.g. methane hydrates, may be formed and controlled within conduits and vessels by imparting energy to gas and water, for instance using agitation or vibration. The systems and methods allow for improved flow characteristics for fluids containing the gases, e.g. hydrocarbon fluids being transported, and for improved overall efficiencies. The gas and water within a gas flow path may be perturbed or agitated to initiate formation of relatively small hydrate particles. The hydrate particles continue to form as long as energy is imparted and water and hydrate guest molecules are available. High amplitude agitation of the gas and water will repeatedly break up agglomerated hydrate particles that form and encourage the formation of more and smaller particles. As more hydrate forms in this manner, less and less free water may be available proximate the gas and water contact.

Formation and control of gas hydrates

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Sugar Land, TX, United States of America

Daniel Lee Crosby