04384625 is referenced by 129 patents and cites 13 patents.

A deviated borehole is drilled with a rotary drilling technique in which the drill string is vibrated at a suitable frequency and amplitude to reduce the friction of the drill string against the lower side of the borehole and to promote the free movement of the drill string therein.

Title
Reduction of the frictional coefficient in a borehole by the use of vibration
Application Number
6/210912
Publication Number
4384625
Application Date
November 28, 1980
Publication Date
May 24, 1983
Inventor
Thomas B Dellinger
Duncanville
TX, US
Wilbur F Roper
Dallas
TX, US
Agent
J F Powers Jr
M G Gilman
C A Huggett
Assignee
Mobil Oil Corporation
NY, US
IPC
E21B 17/00
E21B 31/00
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