CONTROL OF MANAGED PRESSURE DRILLING

Method for controlling bottomhole pressure in a borehole during managed pressure drilling. In the drilling procedure fluid is circulated down a drillstring and to surface through an annulus between the drillstring and an inner-wall of the borehole. A compressor/pump is used to inject gas into the re...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HAVRE, KJETIL, ALDRED, WALTER DAVID, JOHNSON, ASHLEY BERNARD, RINGER, MAURICE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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