Directional drilling control using periodic perturbation of the drill bit
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United States of America Patent
Stats
-
Nov 11, 2014
Issued Date -
N/A
app pub date -
Sep 14, 2011
filing date -
Aug 31, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed herein is a system for steering the direction of a borehole advanced by cutting action of a rotary drill bit by periodically varying action of a drill bit while continuously rotating a drill string to which the drill bit is operationally attached. The steering system can include a bit perturbation device cooperating with a bent housing subsection and operationally connected to the drill string and to the drill bit. Drill bit action can be varied by periodically varying the rotation speed and/or rate of penetration of the drill bit. Periodic drill bit action results in preferential cutting of material from a predetermined arc of the borehole wall which, in turn, results in borehole deviation. Action of the drill bit can be varied independently of the rotation rate of the drill string.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2011 Application Filing Year
- E21B Class
- 2545 Applications Filed
- 2297 Patents Issued To-Date
- 90.26 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- E21B Class
- 0 % this patent is cited more than
- 11 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 11, 2026 |
