Method for monitoring the goodness of the cement bond to a borehole casing
US4809237A · kind A · utility
17Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1987 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Oct 1, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/46
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for monitoring the relative goodness of a cement bond to a borehole casing by observing the relative change in amplitude of a converted-compressional wave as a function of depth in the borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.