Well casing inserting and well bore drilling method and means
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United States of America Patent
Stats
-
Oct 1, 1985
Grant Date -
N/A
app pub date -
Oct 25, 1983
filing date -
Oct 25, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A well bore casing inserting and drilling method and apparatus comprising the simultaneous drilling and casing setting of an oil and/or gas well bore by supporting a drill bit and actuating motor therefor from the lower end of the well casing whereby the well casing is lowered into the well bore simultaneously with the penetration of the earth by the drill bit assembly, the motor and drill bit being releasably secured within a housing whereby the motor and drill bit may be retrieved through the internal bore of the casing for repair or replacement of the drill bit or other operational components of the apparatus.
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