Dual-rotating eccentric drilling apparatus and method
Abstract
Apparatus and method are described for drilling a borehole. An undersized drill bit mounted eccentrically within the borehole is rotated about its axis in engagement with the bottom of the borehole by means of a downhole motor while the drill bit is simultaneously rotated in a planetary motion about the axis of the borehole.
- Inventors:
- Publication Date:
- OSTI Identifier:
- 6049389
- Patent Number(s):
- US 4267893
- Assignee:
- Union Oil Co Of California
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: Filed date 27 Aug 1979
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 02 PETROLEUM; 03 NATURAL GAS; DRILLING EQUIPMENT; DESIGN; WELL DRILLING; BOREHOLES; DRILL BITS; NATURAL GAS WELLS; OIL WELLS; ROTATION; STABILIZATION; CAVITIES; DRILLING; EQUIPMENT; MOTION; WELLS; 020300* - Petroleum- Drilling & Production; 030300 - Natural Gas- Drilling, Production, & Processing
Citation Formats
Mannon, A T. Dual-rotating eccentric drilling apparatus and method. United States: N. p., 1981.
Web.
Mannon, A T. Dual-rotating eccentric drilling apparatus and method. United States.
Mannon, A T. 1981.
"Dual-rotating eccentric drilling apparatus and method". United States.
@article{osti_6049389,
title = {Dual-rotating eccentric drilling apparatus and method},
author = {Mannon, A T},
abstractNote = {Apparatus and method are described for drilling a borehole. An undersized drill bit mounted eccentrically within the borehole is rotated about its axis in engagement with the bottom of the borehole by means of a downhole motor while the drill bit is simultaneously rotated in a planetary motion about the axis of the borehole.},
doi = {},
url = {https://www.osti.gov/biblio/6049389},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 19 00:00:00 EDT 1981},
month = {Tue May 19 00:00:00 EDT 1981}
}
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