Boring or penetrating the earth – Means carried by housing insertable in inaccessible hole to...
Reexamination Certificate
2008-03-25
2008-03-25
Wright, Giovanna C (Department: 3672)
Boring or penetrating the earth
Means carried by housing insertable in inaccessible hole to...
C175S058000, C175S249000, C175S251000
Reexamination Certificate
active
10969165
ABSTRACT:
The present invention is directed to an apparatus and method for coring a borehole in a hard rock sidewall of a well bore in a subterranean formation for testing purposes. The apparatus includes a drive motor for operation down hole, a flexible drive shaft coupled to the drive motor and a coring bit coupled to the flexible drive shaft, such that the coring bit is directly driven by the drive motor. The apparatus also includes a control circuit for controlling advancement of the coring bit into the subterranean formation. The apparatus also includes a rotating carousel for storing multiple core samples. The method includes the steps of activating the drive motor to rotate the output shaft; coupling the output shaft of the drive motor to the flexible drive shaft and rotating the coring bit with the flexible drive shaft.
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International Search Report for PCT/US05/36472 Mailed Oct. 26, 2006.
Arian Abbas
Jones Randall
Ludwig Wes
Mackay Bruce
Smith Ken
Baker & Botts L.L.P.
Halliburton Energy Service,s Inc.
Morico Paul R.
Wright Giovanna C
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