Organo-Clay Free Invert Emulsion Fluids

A method of drilling a subterranean formation includes providing an invert emulsion fluid comprising an oleaginous continuous phase; an internal phase comprising water; bentonite; and mixed metal layered hydroxides comprising hydroxide ions associated with at least two metal cations wherein one is d...

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Bibliographische Detailangaben
Hauptverfasser: Kulkarni Dhanashree Gajanan, Wagle Vikrant Bhavanishankar, Maghrabi Shadaab Syed
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method of drilling a subterranean formation includes providing an invert emulsion fluid comprising an oleaginous continuous phase; an internal phase comprising water; bentonite; and mixed metal layered hydroxides comprising hydroxide ions associated with at least two metal cations wherein one is divalent and another is trivalent; and drilling the subterranean formation with the drilling fluid. Invert emulsion drilling fluids include an oleaginous continuous phase; an internal phase comprising water; sodium bentonite; and mixed metal layered hydroxides comprising hydroxide ions associated with at least two metal cations.