Closed loop multiphase underbalanced drilling process
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United States of America Patent
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Feb 20, 2007
Grant Date -
Jan 15, 2004
app pub date -
Jul 10, 2002
filing date -
Jul 10, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides apparatus and methods for handling fluids returning from a well. The fluids are introduced into a separator and a separated gas stream is recovered or recycled. The gas stream may comprise more than one phase. The separated gas stream is urged through a multiphase pump before it is recovered. Alternatively, the return fluids may pass through a multiphase pump before it is introduced into the separator.
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