초록 ▼

An expandable packer or anchor is disclosed. It features a gripping device integral to or mounted in a sleeve over the mandrel. Upon expansion, a sealing element engages an outer tubular and the gripping device, such as wickers on slips, preferably digs into the outer tubular. The expansion is pref

An expandable packer or anchor is disclosed. It features a gripping device integral to or mounted in a sleeve over the mandrel. Upon expansion, a sealing element engages an outer tubular and the gripping device, such as wickers on slips, preferably digs into the outer tubular. The expansion is preferably by pressure and can incorporate pressure intensifiers delivered by slick line or wire line. Release is accomplished by a release tool, which is delivered on slick line or wire line. It stretches the anchor or packer longitudinally, getting it to retract radially, for release. The release tool can be combined with packers or anchors that have a thin walled feature in the mandrel, to release by pulling the mandrel apart.

대표청구항 ▼

We claim: 1. A method of running a first tubular in a wellbore, said first tubular having an innermost diameter defined by an inner wall thereof that defines its smallest internal dimension when run in, said wellbore comprising an open hole or cased hole, comprising: inserting the first tubular in

We claim: 1. A method of running a first tubular in a wellbore, said first tubular having an innermost diameter defined by an inner wall thereof that defines its smallest internal dimension when run in, said wellbore comprising an open hole or cased hole, comprising: inserting the first tubular in to the wellbore; increasing said smallest internal dimension by increasing said innermost diameter with a swaging tool; expanding said first tubular in the wellbore with said swaging tool for support thereof without expanding the wellbore; removing said first tubular after said expansion by longitudinal extension of said inner wall of said first tubular. 2. The method of claim 1, comprising: penetrating the wellbore with at least one slip. 3. The method of claim 2, comprising: providing hardened wickers on said slip. 4. A method of running a first tubular in a wellbore, said first tubular having an innermost diameter defined by an inner wall thereof that defines its smallest internal dimension when run in, said wellbore comprising an open hole or cased hole, comprising: inserting the first tubular in to the wellbore; increasing said smallest internal dimension by increasing said innermost diameter with a swaging tool; expanding said first tubular in the wellbore with said swaging tool for support thereof without expanding the wellbore; penetrating the wellbore with at least one slip; providing hardened wickers on said slip; removing said first tubular after said expansion by longitudinal extension of said inner wall of said first tubular.