Method and apparatus for investigating a borehole with a caliper
US9217324B2 · kind B2 · utility
4Cited by
19References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2009 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Jan 14, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/46
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Embodiments of the present invention relate to a caliper and method for mapping the dimensions and topography of a formation such as the sidewall of a borehole. Examples of formations in which embodiments of the invention can be used include, but are not limited to, an oil, gas, pile borehole or barrette that has been drilled or excavated into the earth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.