METHOD AND TOOL FOR DIRECTING AN ANNULAR FLOW ACROSS A WELL BORE INTERVAL
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United States of America
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Issued Date -
Nov 28, 2024
app pub date -
May 27, 2024
filing date -
May 27, 2024
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Abstract
There is disclosed a method for treating an isolated hydrocarbon interval feedable through a production tubing inside a well bore and forming an annulus therebetween. A perforated cylindrical tool having an expandable annular seal may attach to the production tubing and house a slidable element positionally responsive to an injection velocity of a well fluid. The tool may be lowered to a sealing depth for bracketing the hydrocarbon interval. Injection of the well fluid may drag a narrowing bore of the slidable element downward for expanding the annular seal against the well bore. The well fluid may also be directed from the element bore to the annulus by aligning an element flow port with a corresponding tool passage, a downstream or an upstream flow being selectable by an injection velocity for slidably aligning the corresponding flow ports having different axial locations.
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