Method and apparatus for lateral well drilling with enhanced capability for clearing cuttings and other particles
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United States of America Patent
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Dec 29, 2015
Grant Date -
Oct 15, 2009
app pub date -
Apr 14, 2009
filing date -
Apr 14, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
Apparatus for clearing particles from a lateral drilling operation in strata beside a well. The drilling apparatus is part of a down hole unit and is configured for extending from a lateral opening of the unit into a lateral passage in the adjacent strata, and the operation of the drilling apparatus discharges particles from the lateral passage toward the lateral opening. The invention deflects or redirects the particles discharged from the lateral passage, away from the lateral opening, to prevent clogging or blocking of an internal passage or elbow through the down hole unit, using a pressurized fluid such as a gas or an emulsion. The pressurized fluid can also be configured for carrying the particles upwardly through the well to the surface, and for reducing or removing a hydrostatic head in the well.
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