Capsule for two downhole pump modules
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United States of America Patent
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Jun 15, 2010
Grant Date -
Nov 29, 2007
app pub date -
May 17, 2007
filing date -
May 23, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Upstream and downstream pump assemblies are mounted in a capsule having a bulkhead between the upstream and downstream pump assemblies, dividing the capsule into upstream and downstream chambers sealed from each other. In a dual operation mode, well fluid flows through the inlet of the capsule into the upstream chamber, where it is pumped to a first pressure level by the upstream pump assembly and discharged into the downstream chamber. The downstream pump assembly then pumps the well fluid to a second pressure level and discharges the well fluid out the outlet of the capsule. The assembly has also an upstream pump assembly only operational mode and a downstream pump assembly only operational mode.
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