AN INVERT EMULSION DRILLING FLUID CONTAINING A HYGROSCOPIC LIQUID AND A POLYMERIC SUSPENDING AGENT

An invert emulsion drilling fluid. The fluid comprises an external phase and an internal phase. The external phase comprises a hydrocarbon liquid and the internal phase comprises a hygroscopic liquid. The hygroscopic liquid is selected such that the drilling fluid has an activity less than or equal...

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Hauptverfasser:	MAGHRABI, SHADAAB S, WAGLE, VIKRANT B
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES
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creator	MAGHRABI, SHADAAB S WAGLE, VIKRANT B
description	An invert emulsion drilling fluid. The fluid comprises an external phase and an internal phase. The external phase comprises a hydrocarbon liquid and the internal phase comprises a hygroscopic liquid. The hygroscopic liquid is selected such that the drilling fluid has an activity less than or equal to the amount needed to obtain a shale retention value of greater than 90%, when tested on a shale formation sample. The fluid does not contain an organophilic clay or organophilic lignite. In a separate embodiment the fluid comprises a suspending agent, wherein the suspending agent is a polymer comprising urea linkages.
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The fluid comprises an external phase and an internal phase. The external phase comprises a hydrocarbon liquid and the internal phase comprises a hygroscopic liquid. The hygroscopic liquid is selected such that the drilling fluid has an activity less than or equal to the amount needed to obtain a shale retention value of greater than 90%, when tested on a shale formation sample. The fluid does not contain an organophilic clay or organophilic lignite. In a separate embodiment the fluid comprises a suspending agent, wherein the suspending agent is a polymer comprising urea linkages.</abstract><oa>free_for_read</oa></addata></record>
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language	eng ; fre ; ger
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subjects	ADHESIVES CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES
title	AN INVERT EMULSION DRILLING FLUID CONTAINING A HYGROSCOPIC LIQUID AND A POLYMERIC SUSPENDING AGENT
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