Downwell isolator

Details Downwell isolator Downwell isolator

1996-09-13

1998-09-08

Neuder, William P.

Wells

Processes

Placing fluid into the formation

166 50, E21B 4324

Patent

active

058031782

ABSTRACT:
A slidably sealing isolator and method for using the isolator in a wellbore tubular to control the injection and production of fluids to individual formation zones, the isolator having 1) a sliding band seal which does not need to be actuated or set in order to restrict fluid flow into a wellbore zone and is capable of slidably sealing at threaded joint portions of the wellbore tubular, and 2) a wellbore flow control means.

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patent: 5024275 (1991-06-01), Anderson et al.
patent: 5085276 (1992-02-01), Rivas et al.
patent: 5311939 (1994-05-01), Pringle et al.
patent: 5472050 (1995-12-01), Rhoten et al.

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