Method for enhanced recovery of viscous oil deposits
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United States of America Patent
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Oct 27, 1998
Grant Date -
N/A
app pub date -
Apr 25, 1996
filing date -
Apr 25, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Methods and apparatus for enhanced and improved viscous oil recovery are disclosed. A horizontal well is drilled through the viscous oil formation. A specially designed steam stinger is used to inject steam substantially uniformly into the entire horizontal extent of the well borehole without direct steam impingement on the production liner in the viscous oil formation. Heat from the steam mobilizes and lowers the viscosity of the heavy crude wherein the crude is then produced to the surface via conventional lift arrangements.
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