Method and apparatus for vibrating horizontal drill string to improve weight transfer
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United States of America Patent
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Mar 21, 2017
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N/A
app pub date -
Jul 23, 2012
filing date -
Jul 22, 2011
priority date (Note) -
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Abstract
An apparatus for use in a horizontal section of a drill string is disclosed. The apparatus includes a motor that is connected to the horizontal section of the drill string. The motor is adapted to impart vibrations in the horizontal section of the drill string, where the vibrations are at about the lateral resonant frequency of the horizontal section of the drill string.
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