Active bottomhole pressure control with liner drilling and completion systems

One exemplary APD Device is used with a liner drilling assembly to control wellbore pressure. The APD Device reduces a dynamic pressure loss associated with the drilling fluid returning via a wellbore annulus. Another exemplary APD Device is used to control pressure in a wellbore when deploying well...

Full description

Saved in:
Bibliographic Details
Main Authors Krueger, Sven, Heisig, Gerald, Hahn, Detlef, Krueger, Volker, Aronstam, Peter, Grimmer, Harald, Fincher, Roger, Watkins, Larry
Format Patent
LanguageEnglish
Published 06.09.2011
Online AccessGet full text

Cover

More Information
Summary:One exemplary APD Device is used with a liner drilling assembly to control wellbore pressure. The APD Device reduces a dynamic pressure loss associated with the drilling fluid returning via a wellbore annulus. Another exemplary APD Device is used to control pressure in a wellbore when deploying wellbore equipment, including running, installing and/or operating wellbore tools. The APD Device is set to reduce a dynamic pressure loss associated with a circulating fluid. The APD Device can also be configured to reduce a surge effect associated with the running of the wellbore equipment. Still another APD Device is used to control pressure in a wellbore when completing or working over a well. Exemplary completion activity can include circulating fluid other than a drilling fluid, such as a gravel slurry. The APD Device can reduce the dynamic pressure loss associated with circulation of both drilling fluid and non-drilling fluid.