초록 ▼

The fixation of a packer or other borehole device is provided by explosively bonding the device to the borehole casing in the desired location. The explosively set packer is oriented in the borehole casing on a setting tool which preferably includes a casing scraper to clean the interior surface of

The fixation of a packer or other borehole device is provided by explosively bonding the device to the borehole casing in the desired location. The explosively set packer is oriented in the borehole casing on a setting tool which preferably includes a casing scraper to clean the interior surface of the borehole casing, a removable packer to trap a gas pocket in the area where the explosive bonding is to occur and a gas transfer apparatus to form a gas pocket below the removable packer after the removable packer has been set.

대표청구항 ▼

A method of fixing a downhole device within a well casing which comprises the steps of: positioning a fixation element on a support assembly; lowering said fixation element and support assembly into a well casing; arranging an explosive within said fixation element; arranging said explosive and fixa

A method of fixing a downhole device within a well casing which comprises the steps of: positioning a fixation element on a support assembly; lowering said fixation element and support assembly into a well casing; arranging an explosive within said fixation element; arranging said explosive and fixation element respective to the casing such that when the explosive is detonated, the fixation element is explosively welded directly to the casing; detonating said explosive to thereby explosively bond said fixation element to said well casing; removing said support assembly from said well casing. An explosively fixable downhole device for permanent fixation within a well casing which comprises: a removable packer comprising expandable slips, a setting apparatus, an expandable sealing means oriented on said packer; means by which a gas pocket can be formed at a location below said removable packer; and, an explosively fixable element oriented below said removable packer and within said gas pocket comprising a deformable outer shell and means to explosively fix said outer shell directly to the well casing.