High frequency inspection of downhole environment
US9664030B2 · kind B2 · utility
2Cited by
11References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 5, 2014 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Apr 11, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Among other things, there are disclosed embodiments of a well-logging tool that inspects features of the down-hole environment using ultrasonic signals with a frequency in the range of 3-5 MHz. The ultrasonic signals are encoded, and their time-of-flight and amplitude provide information on features of interior surface of the casing on the order of 1 mm, and on the quality of the cement bond behind the casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.