Fluid loss additive package for shallow well drilling fluids

A wellbore treatment fluid comprising: a base fluid; and a fluid loss additive package, the fluid loss additive package comprising: a water-swellable, superabsorbent polymer; a derivatized cellulose; and non-swellable particles that are insoluble in the base fluid. A method of drilling a wellbore in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Preston A May, Ryan P Collins
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:	A wellbore treatment fluid comprising: a base fluid; and a fluid loss additive package, the fluid loss additive package comprising: a water-swellable, superabsorbent polymer; a derivatized cellulose; and non-swellable particles that are insoluble in the base fluid. A method of drilling a wellbore into a subterranean formation comprising: providing the drilling fluid; and forming the wellbore using a drill bit and the drilling fluid.