Buried hydrophone with solid or semi-rigid coupling
US9568625B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2014 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Feb 9, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/181
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
According to an embodiment, a seismic receiver device is described for use in a borehole surrounded by an ambient material, e.g., rock, mud, etc. The seismic receiver device includes a pressure wave measuring device which is configured to sense pressure changes associated with received seismic waves, a coating layer disposed on the pressure wave measuring device, and an outer layer disposed on the coating layer which is made of a material that is selected to have a bulk modulus number that is substantially similar to a bulk modulus number of the ambient medium. In this way, the acoustic impedance of the device is better matched to the ambient material so that more accurate seismic acquisition may be performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.