Subsea production wellhead assembly
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United States of America Patent
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Nov 10, 1992
Grant Date -
N/A
app pub date -
Jun 27, 1991
filing date -
Jun 27, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A concentric riser parallel bore subsea well assembly for controlling production from a subsea wellhead to a floating production facility. The invention utilizes a concentric riser and tubing string in combination with a dual parallel bore production tree. The production tree communicates with a parallel bore tubing hanger that communicates with the production tubing string and the casing annulus.
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