Method and apparatus for use in selectively fracing a well

Details Method and apparatus for use in selectively fracing a well Method and apparatus for use in selectively fracing a well

E - Fixed Constructions

21

B

E21B 33/126 (2006.01) E21B 33/124 (2006.01)

Patent

CA 2682621

There provided an isolation tool for selectively applying pressure to an outer tubular body. The isolation tool has a tubular body carrying a first sealing element and a second sealing element. The tubular body has a fluid inlet and a fluid outlet. The tubular body is movable within the outer tubular body. A pressure cavity is defined by an outer surface of the tubular body, an inner surface of the outer tubular body, and the first and second sealing elements. The fluid outlet of the tubular body is in fluid communication with the pressure cavity. The first sealing element and the second sealing element permit fluid flow into the pressure cavity and sealing against fluid flow out of the pressure cavity.

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