HYDRAULICALLY UNITARY WELL SYSTEM AND RECOVERY PROCESS (HUWSRP)
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United States of America Patent
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Issued Date -
Mar 3, 2016
app pub date -
Aug 27, 2015
filing date -
Aug 28, 2014
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Abstract
The present disclosure describes a method of recovering viscous hydrocarbons from a subterranean formation using a gravity dominated recovery process with a group of wells, the recovery process incorporating an interwell recovery phase. The group of wells is initially operated independently to establish hydraulic communication between two or more wells in the group. Once hydraulic communication is established, injection of mobilizing fluid and production of hydrocarbons continues in at least one well within the group with an excess amount of mobilizing fluid being injected into the well. At the same time, production only continues in at least one well within the group, without any injection of mobilizing fluid. The wells in the group are spaced closer together than in conventional recovery processes. The recovery process may be SAGD.
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