Method and apparatus for automatic closed loop drilling system
US5332048A · kind A · utility
281Cited by
50References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1992 |
| Grant date | Jul 26, 1994 |
| Priority date | — |
| Expiry date | Oct 23, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B44/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An automatic closed loop drilling system is disclosed for providing automatic directional drilling capabilities in a bottomhole assembly. The drilling system includes at least one adjustable stabilizer that varies in response to formational and drilling conditions encountered downhole. A microcontroller is preprogrammed with a desired range of formation characteristics or with a desired inclination or target area. The microcontroller compares actual sensed data with the desired data and adjusts the position of the stabilizer blades to vary the direction of drilling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.