FremgangsmÕte ved boring av en brønn i en geologisk formasjon, samt borefluid

Procedure used in a well bored across at least one geological hydrocarbon formation having a certain permeability level involves the circulation of a water-based fluid in the well. The permeability of the walls of the well is controlled by the addn. of a specified amt. of gellane to the fluid.

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Bibliographische Detailangaben
Hauptverfasser:	CHOPLIN, LIONEL, LECOURTIER, JACQUELINE, DREVETON, ERIC, BALLERINI, DANIEL
Format:	Patent
Sprache:	nor
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:	Procedure used in a well bored across at least one geological hydrocarbon formation having a certain permeability level involves the circulation of a water-based fluid in the well. The permeability of the walls of the well is controlled by the addn. of a specified amt. of gellane to the fluid.