GLYCOL ETHER AMINES FOR USE AS CLAY AND SHALE INHIBITION AGENTS FOR THE DRILLING INDUSTRY

The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent having the formula:(Formula I should be inserted here.) wherein R is hydrogen or an alkyl group having 1 to 12 carbons, R1 is an alkylen...

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Main Authors FELIPE A. DONATE, MICHAEL K. POINDEXTER, ALEKSANDR T. GAMBLE, JOHN BECKERDITE, KYLE R. ESSENMACHER, COLE A. WITHAM, STEPHEN W. KING
Format Patent
LanguageEnglish
Spanish
Published 17.07.2015
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Summary:The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent having the formula:(Formula I should be inserted here.) wherein R is hydrogen or an alkyl group having 1 to 12 carbons, R1 is an alkylene group having 1 to 12 carbons, and R2 is an alkyl group having 1 to 12 carbons. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids. La hidratación de arcillas y esquisto en operaciones de perforación puede inhibirse al emplear un fluido de perforación de base acuosa que comprende un agente de inhibición de hidratación de esquisto que tiene la fórmula: (la Fórmula I debe insertarse aquí) en la que R es hidrógeno o un grupo alquilo que tiene de 1 a 12 carbonos, R1 es un grupo alquileno que tiene de 1 a 12 carbonos, y R2 es un grupo alquilo que tiene de 1 a 12 carbonos. El agente de inhibición de hidratación de esquisto debe estar presente en el fluido de perforación de base acuosa en una concentración suficiente para reducir la reactividad, tal como el hinchamiento, de arcillas y esquisto cuando se exponen a fluidos de perforación a base de agua.
Bibliography:Application Number: MX20140015913