Title:
METHOD AND APPARATUS FOR CONTROLLING FLUID FLOW INTO A WELLBORE
Document Type and Number:
WIPO Patent Application WO/2012/091829
Kind Code:
A3
Abstract:
In one aspect, an injection apparatus for use in a wellbore is disclosed wherein the apparatus includes a tubular housing and a shield housing disposed outside the tubular housing, the shield housing including a chamber in fluid communication with the tubular housing. The apparatus further includes a piston disposed within the shield housing, the piston coupled to a biasing member, wherein movement of the piston controls fluid communication between the chamber and the wellbore, and wherein the movement of the piston is caused by a pressure change of a fluid within the tubular housing.
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Inventors:
SUN KAI (US)
CONSTANTINE JR JESSE J (US)
CONSTANTINE JR JESSE J (US)
Application Number:
PCT/US2011/062232
Publication Date:
August 23, 2012
Filing Date:
November 28, 2011
Export Citation:
Assignee:
BAKER HUGHES INC (US)
SUN KAI (US)
CONSTANTINE JR JESSE J (US)
SUN KAI (US)
CONSTANTINE JR JESSE J (US)
International Classes:
E21B34/14; E21B34/08; E21B43/12
Foreign References:
| US7640990B2 | 2010-01-05 | |||
| US20090078427A1 | 2009-03-26 | |||
| US20060131033A1 | 2006-06-22 |
Other References:
See also references of EP 2659089A4
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