In situ injection or production via a well using selective operation of multi-valve assemblies with choked configurations
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United States of America Patent
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Aug 22, 2023
Grant Date -
May 12, 2022
app pub date -
Jan 24, 2022
filing date -
Sep 27, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
Oil recovery can include providing a tubing string and isolation devices to define isolated intervals for an existing well previously operated using plug-and-perf and primary production. Valve assemblies are installed in respective isolated intervals, each valve assembly including at least two valves. The valve can be operated in open and closed configurations, and at least one open configuration provides choked flow via an elongated passage. The valves can have a housing and a shiftable sleeve. The valve assemblies can be operated to provide a desired openness based on the injectivity or other properties by shifting the sleeves of the valves. Different flow resistance levels can be provided to facilitate enhanced operations for water flooding and other oil recovery processes.
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