Down hole, hydrodynamic well control, blowout prevention
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United States of America Patent
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Apr 9, 2002
Grant Date -
N/A
app pub date -
Feb 19, 1999
filing date -
Feb 20, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The system and method of the present invention permits control of down hole fluid pressures during under balanced drilling, tripping of the drill string, and well completion to substantially avoid 'killing' of the well and thereby damaging the producing formations in the well bore. The system and method utilizes separate and interconnected fluid pathways for introducing a downwardly flowing hydrodynamic control fluid through one fluid pathway and for removing through the other fluid pathway a commingled fluid formed by mixing of the hydrodynamic control fluid and the well bore fluids flowing upwardly in the well bore.
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