Seismic wave generation systems and methods for cased wells
US7916578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2008 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Feb 16, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/143
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vibration source (10) includes an armature bar (12) having a major length dimension, and a driver (20A) positioned about the armature bar. The driver (20A) is movably coupled to the armature bar (12), and includes an electromagnet (40). During operation the electromagnet (40) is activated such that the driver (20A) moves with respect to the armature bar (12) and a vibratory signal is generated in the armature bar. A described method for generating a vibratory signal in an object includes positioning the vibration source (10) in an opening of the object, coupling the armature bar (12) to a surface of the object within the opening, and activating the electromagnet (40) of the driver (20A) such that the driver moves with respect to the armature bar (12) and a vibratory signal is generated in the armature bar and the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.