Oleaginous drilling fluid, method of use and bio-remediation of the same to produce a useful soil amendments

The invention relates to a method of bio-remediating wellbore cuttings, comprising the steps of: a) drilling a subterranean well using a drilling fluid comprising an oleaginous phase substantially composed of a linear paraffin having 11-18 carbon atoms; a non-oleaginous phase containing a salt of a...

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Bibliographische Detailangaben
Hauptverfasser:	STEPHEN RABKE, JOHN CANDLER, JONATHAN GETLIFF, WRAY G. CURTIS, SONYA ROSS, GREG MCEWAN, FREDERICK GROWCOCK
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FERTILISERS FIXED CONSTRUCTIONS MANUFACTURE THEREOF MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE PAINTS POLISHES
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Beschreibung
Zusammenfassung:	The invention relates to a method of bio-remediating wellbore cuttings, comprising the steps of: a) drilling a subterranean well using a drilling fluid comprising an oleaginous phase substantially composed of a linear paraffin having 11-18 carbon atoms; a non-oleaginous phase containing a salt of a biodegradable anion; and an emulsifying agent in a concentration capable of forming an invert emulsion suitable for use as a drilling fluid; wellbore cuttings being thereby formed; b) removing the cuttings from the well; c) transporting the cuttings to a remediation site; d) blending the cuttings with nutrients to create a treatment feed; and e) bio-remediating said treatment feed so as to substantially bio-remediate the cuttings. Bio-remediation is preferably performed in a vermicular bioreactor.