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US 2016/0102526 A1Published application
Stage tool
AssigneeWeatherford Technology Holdings, LLC
InventorsStephanie Dianne WIND, James Frederick WILKIN, Douglas Brian FARLEY
Life of this patent
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Abstract
A method of closing a stage tool in a wellbore includes releasing a closing tube into the wellbore; attaching the closing tube to the stage tool; and expanding the closing tube, thereby closing a port of the stage tool.
Claims24
A stage tool, comprising:
- a tubular body having a port;
- a sliding sleeve configured to close fluid communication through the port;
- and
- a closing tube configured to close fluid communication through the port.
1 more element
A method of cementing a casing, comprising:
- attaching a stage tool to the casing;
- opening a port in the stage tool;
- supplying cement through the port;
- releasing a closing tube into the wellbore;
- attaching the closing tube to the stage tool;
- and
- closing fluid communication of the port with a bore of the casing using the closing tube.
4 more elements
A method of closing a stage tool in a wellbore, comprising:
- supplying fluid through an opening in the stage tool;
- releasing a closing tube into the wellbore;
- attaching the closing tube to the stage tool;
- and
- allowing a sealing element on the closing tube to swell, thereby forming a seal with the stage tool.
2 more elements
Dependencies are inferred from the claim text.