Downhole release tool
AssigneeWeatherford Technology Holdings, LLC
InventorsJose A. Mejia, Jeffrey B. Wensrich, Benjamin L. Todd, Michael Moody
Life of this patent
Estimating the term…
Abstract
A downhole tool has a release device for releasing a downhole device in a wellbore. The downhole tool has a collet with an inner surface and a collet shoulder; a release rod configured to engage the collet shoulder in a locked position and disengage from the collet shoulder in a release position; and a release tube surrounding the release rod and having a release ramp proximate a nose of the release tube.
Claims39
A downhole tool having a release device for releasing a downhole device in a wellbore, the downhole tool comprising:
- a collet having an inner surface and a collet shoulder;
- a release rod configured to engage the collet shoulder in a locked position and disengage from the collet shoulder in a release position;
- and
- a release tube surrounding the release rod and having a release ramp proximate a nose of the release tube.
A method for releasing a downhole device from a downhole tool within a tubular, comprising the steps of:
- applying an uphole force to a conveyance connected to the downhole tool, and wherein the conveyance is configured for delivering the downhole tool to the tubular;
- preventing against accidental release of the downhole device in the tubular;
- and
- releasing the downhole device.
A method for releasing a downhole device connected to a downhole tool within a tubular, comprising the steps of:
- sliding a nose defined on a release tube into an inner surface defined in a collet;
- motivating the collet radially away from a release rod;
- and
- releasing the release rod.
A downhole tool apparatus for releasing a downhole device in a wellbore, comprising:
- a release tube having a nose proximate a release ramp;
- and
- a plurality of ratchet profiles defined on the release tube.
A downhole tool apparatus for releasing a downhole device in a wellbore, comprising:
- a release tube;
- an inner sleeve connected to the release tube;
- a pin connected to the inner sleeve;
- an outer sleeve defining a slot with which the pin is engaged, wherein the inner sleeve is configured to slidably move within the outer sleeve;
- and
- a radial spring surrounding the inner sleeve.
Dependencies are inferred from the claim text.