Method and apparatus for logging non-circular boreholes
US6065218A · kind A · utility
14Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1995 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Sep 22, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a logging method and apparatus adapted for use in non-circular boreholes which, in one embodiment, comprises the use of a first and a second sonde, each sonde having: a pad adapted for contact with the borehole wall, at least a sensor on each pad, and an extendable arm for keeping the pad against the wall of the borehole. The first and second sonde produce measurements related to the same property of the formations, and the first and the second sonde are connected so as to keep the pads aligned with a 90.degree. azimuthal spacing therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.