Method for selective treatment of a producing formation, device for the implementation thereof and hydraulic fracturing port
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United States of America Patent
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Feb 6, 2024
Grant Date -
Aug 18, 2022
app pub date -
Oct 15, 2020
filing date -
Nov 1, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
The proposed technology relates to methods and devices for selective treatment of wellbores that allows treating several intervals of a productive formation in a single trip. The proposed device for implementing the method includes a mechanical anchor, hydraulic fracturing port, packers and a perforator disposed in the device's bottom part. It is lowered into a well casing to the depth of productive formation. Working fluid is supplied to the perforator via a tubing string, the well casing is perforated, and caverns are washed out. The device is positioned so that the perforation interval is situated between the packers, fixed in the well casing by the anchor, and working fluid is then cut off. Hydraulic fracturing fluid is supplied, and the productive formation's interval is isolated from the well casing's annulus by activation of the packers. Hydraulic fracturing is executed, and the device is removed from the well casing.
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