초록 ▼

An apparatus and method for installing and removing packer assemblies from a subterranean well. A packer assembly has a stop that prevents the seal assembly from relaxing. The stop is cut axially by use of a chemically reactive cutter device lowered into the well and activated by use of conventional

An apparatus and method for installing and removing packer assemblies from a subterranean well. A packer assembly has a stop that prevents the seal assembly from relaxing. The stop is cut axially by use of a chemically reactive cutter device lowered into the well and activated by use of conventional wire line equipment. Once cut, the seal assembly on the packer is allowed to relax and can be removed intact from the well.

대표청구항 ▼

1. A method for removing a tubing assembly having an axially extending passageway from a well wherein the tubing assembly contains components of at least one tubular member and at least one packer assembly and wherein the packer assembly is held in the radially expanded condition by an annular stop

1. A method for removing a tubing assembly having an axially extending passageway from a well wherein the tubing assembly contains components of at least one tubular member and at least one packer assembly and wherein the packer assembly is held in the radially expanded condition by an annular stop on the packer assembly, the method comprising:a. moving a cutter into the axial passageway to an activation position located adjacent the stop, b. retracting the packer from the radially expanded condition by activating the cutter in the appropriate position to disable the stop and thereby remove the stop and permit the packer to move out of the radially expanded position, wherein none of the components of the assembly are axially severed, and c. removing the tubing assembly from the well.