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US 12,442,263 B2Granted
Liner deployment tool
AssigneeWeatherford Technology Holdings, LLC
InventorJeffrey D. Herndon
Life of this patent
Estimating the term…
Abstract
A gravel pack system includes a liner assembly for positioning in a wellbore. A deployment assembly includes a cross-over tool to facilitate gravel packing without manipulation of the work string. The system includes an isolation packer assembly which is deployed at the upper end of the liner assembly upon exit of the workstring from the wellbore.
Claims20
A method of running an operation in a wellbore extending through a subterranean formation, the method comprising:
- running a workstring into the wellbore, the workstring initially having:
- a liner assembly including a liner, an inner string extending through the liner;
- a gravel pack valve attached to the inner string;
- and
- an isolation packer assembly attached to the inner string;
- positioning the workstring at a selected location in the wellbore adjacent the subterranean formation;
- gravel packing a wellbore annulus around the liner;
- setting a packer to seal the wellbore annulus around the liner;
- detaching the liner from the workstring;
- pulling the workstring with the inner string upwards in the wellbore;
- positioning the isolation packer at an upper end of the liner;
- fastening the isolation packer to the upper end of the liner;
- sealing against flow across the isolation packer;
- detaching the isolation packer from the inner string;
- and pulling the inner string from the wellbore.
12 more elements
A wellbore assembly for use in a wellbore extending through a subterranean formation, the assembly comprising:
- a workstring;
- a liner releasably attached to a lower end of the workstring, the liner for positioning at a selected location in the wellbore, the liner defining an inner bore extending therethrough, the liner having a seal bore defined in the inner bore;
- an inner string having an inner bore extending therethrough for allowing fluid flow therethrough, a gravel pack valve positioned on the inner string for controlling fluid flow therethrough, the inner string extending through the inner bore of the liner and defining an inner string annulus between the inner string and the liner, the inner string annulus for allowing fluid flow therethrough;
- an isolation packer releasably attached to a lower end of the inner string, the isolation packer having an inner bore and at least one port for selectively allowing fluid flow across the isolation packer,
- the isolation packer movable, when the workstring is released from the liner, to a position adjacent the seal bore, for sealingly engaging the seal bore to prevent fluid flow across an annulus between the isolation packer and the liner;
- and
- a fastener for coupling together the isolation packer and the liner when the seal bore and isolation packer are sealingly engaged.
4 more elements
Dependencies are inferred from the claim text.