US 7,861,774 B2
Method and apparatus for wellbore fluid treatmentGeneral
US 7,861,774 B2
Method and apparatus for wellbore fluid treatment
Tech Center:
3600 Transportation, Construction, Electronic Commerce, Agriculture, National Security and License and Review
Examiner:
Kenneth Thompson
Art Unit:
3672 Wells, Earth Boring/Moving/Working, Excavating, Mining, Harvesters, Bridges, Roads, Petroleum, Closures, Connections, and Hardware
Agent:
Bennett Jones LLP
Inventors:
JIM FEHR; DANIEL JON THEMIG
Assignee:
Priority:
11/19/01
Filed:
05/22/09
Granted:
01/04/11
Expiration:
02/06/23
Abstract
A tubing string assembly is disclosed for fluid treatment of a wellbore. The tubing string can be used for staged wellbore fluid treatment where a selected segment of the wellbore is treated, while other segments are sealed off. The tubing string can also be used where a ported tubing string is required to be run in in a pressure tight condition and later is needed to be in an open-port condition.
Cooperative Patent Classification (CPC)
E21E21B43/2605E21B