Removing fines from a spent aqueous well treating fluid

Method of removing fines from a spent aqueous drilling fluid containing, a water-soluble polymer, a salting-out anion, fines and a slightly soluble calcium or magnesium compound comprising the steps of (a) raising the pH of the aqueous drilling fluid to allow agglomeration of the fines and precipita...

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Bibliographische Detailangaben
Hauptverfasser:	JOHANNES ADRIAAN ARIS HOORN, SIV KILLIE
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS 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 PAINTS POLISHES
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Beschreibung
Zusammenfassung:	Method of removing fines from a spent aqueous drilling fluid containing, a water-soluble polymer, a salting-out anion, fines and a slightly soluble calcium or magnesium compound comprising the steps of (a) raising the pH of the aqueous drilling fluid to allow agglomeration of the fines and precipitation of the water-soluble polymer; and (b) separating the agglomerates from the aqueous drilling fluid.