Methods and apparatus for a downhole tool

Details Methods and apparatus for a downhole tool Methods and apparatus for a downhole tool

2008-03-28

2010-11-23

Neuder, William P (Department: 3676)

Wells

Processes

Placing or shifting well part

C166S120000

Reexamination Certificate

active

07836962

ABSTRACT:
An apparatus and method for operating a packer and a fracture valve is shown. The packer may include a tubular mandrel having a longitudinal bore with an annular packing element and a first piston disposed around the mandrel, wherein the first piston is operable to set the packing element, and a second piston operable to isolate fluid communication between the first piston and the mandrel bore. The fracture valve may include a tubular mandrel having a longitudinal bore and a port, a piston operable to close fluid communication between the bore and the port, and a latch disposed between the piston and the mandrel operable to resist movement of the piston.

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EP Search Report, Application No. 09156529.1-2315, dated Jul. 14, 2009.

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