Wells – Processes – Placing fluid into the formation
Reexamination Certificate
2008-10-30
2011-11-29
Stephenson, Daniel P (Department: 3676)
Wells
Processes
Placing fluid into the formation
C166S322000
Reexamination Certificate
active
08066071
ABSTRACT:
Apparatus for multi-zone wellbores that can by-pass upper hydrocarbon bearing zones and deliver fluid to lower hydrocarbon bearing zones. The apparatus can include at least one housing, and at least one port can be formed through the housing. An inner sleeve can be positioned within the housing. At least one cavity can be radially disposed on an outer diameter of the inner sleeve, and each cavity can be located within an annulus formed between the inner sleeve and the housing. A ball can be disposed within each cavity, and the ball can be adapted to selectively engage the port.
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Daniel Gregory
Krush Robert
Sharma Ashish
Stringfield Barry Scott
Matthews David
Schlumberger Technology Corporation
Stephenson Daniel P
Warfford Rodney
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