Active bottomhole pressure control with liner drilling and compeltion systems

A method of controlling borehole pressure during non-drilling activities comprising circulating a non drilling fluid in the wellbore, setting or actuating wellbore equipment using the circulating non drilling fluid and operating an Active Pressure Differential device (APD device) 102 positioned in t...

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Main Authors SVEN KRUEGHER, LARRY WATKINS, GERALD HEISIG, VOLKER KRUEGER, ROGER FINCHER, PETER ARONSTAM, DETLEF HAHN, HARALD GRIMMER
Format Patent
LanguageEnglish
Published 15.06.2011
Subjects
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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Abstract A method of controlling borehole pressure during non-drilling activities comprising circulating a non drilling fluid in the wellbore, setting or actuating wellbore equipment using the circulating non drilling fluid and operating an Active Pressure Differential device (APD device) 102 positioned in the wellbore to control the wellbore pressure. The non drilling activities may comprise completion or workover activities using completion or workover fluids. The non-drilling fluid may contain gravel particles. The APD reduces a dynamic pressure loss associated with the circulating non-drilling fluid.
AbstractList A method of controlling borehole pressure during non-drilling activities comprising circulating a non drilling fluid in the wellbore, setting or actuating wellbore equipment using the circulating non drilling fluid and operating an Active Pressure Differential device (APD device) 102 positioned in the wellbore to control the wellbore pressure. The non drilling activities may comprise completion or workover activities using completion or workover fluids. The non-drilling fluid may contain gravel particles. The APD reduces a dynamic pressure loss associated with the circulating non-drilling fluid.
Author ROGER FINCHER
SVEN KRUEGHER
GERALD HEISIG
HARALD GRIMMER
LARRY WATKINS
DETLEF HAHN
VOLKER KRUEGER
PETER ARONSTAM
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– fullname: ROGER FINCHER
– fullname: PETER ARONSTAM
– fullname: DETLEF HAHN
– fullname: HARALD GRIMMER
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Snippet A method of controlling borehole pressure during non-drilling activities comprising circulating a non drilling fluid in the wellbore, setting or actuating...
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SubjectTerms 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
Title Active bottomhole pressure control with liner drilling and compeltion systems
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