Seismic signal coupling device and method
US6262945A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Apr 9, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/3808
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A seismic coupling device for geophones firmly couples seismic sensors to the sea floor. The structure is open for the free flow of sea water and mud through the structure so that it moves freely through the sea water and solidly embeds itself in the ocean bottom. It is preferably made of a corrosion resistant metal, such as stainless steel, which also resists bending forces on the cable take-up reel, and provides further mechanical protection for sensor components enclosed within. A segmented ring at each end clamps around the protective enclosure which encloses the sensor package, and a further pair of segmented rings inside the ends clamps around the enclosure. A plurality of axially oriented longitudinal bars couple to the rings to form a squirrel cage around the enclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.