Casing-engaging well tree isolation tool and method of use

Details Casing-engaging well tree isolation tool and method of use Casing-engaging well tree isolation tool and method of use

2007-01-30

2007-01-30

Neuder, William (Department: 3672)

Wells

Processes

Assembling well part

C166S383000, C166S090100

Reexamination Certificate

active

10813832

ABSTRACT:
A casing-engaging wellhead isolation and method of the tool protects wellheads from lifting pressures induced by high fluid pressures and high flow rates used to stimulate low pressure wells. A releasable packer assembly mounted to a bottom end of a mandrel of the tool grips the casing and transfers the lifting pressures directly to the casing. Well treatment safety is thereby significantly enhanced.

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