Apparatus and method for drilling a well
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United States of America Patent
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Jul 12, 2016
Grant Date -
Mar 6, 2014
app pub date -
May 13, 2011
filing date -
May 13, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A method for forming a controllable bend angle in a drill string in a wellbore comprises attaching an upper housing to a drill string. At least, one drive motor is anchored in the upper housing. A middle housing is operably coupled to the at least one drive motor. A lower housing is operably coupled to the at least one drive motor. The at least one drive motor is controllably operated to rotate the middle housing by a first rotation angle with respect to the upper housing, and to rotate the lower housing by a second rotation angle with respect to the upper housing, to generate a desired bend angle between the middle housing and the lower housing at a target toolface orientation between the bend angle and the upper housing.
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