Flexible conductive shield for downhole electromagnetic noise suppression
US10459110B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Apr 26, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods, systems and devices for evaluating an earth formation, including an electromagnetic (EM) well logging apparatus for investigating a formation from a fluid-filled borehole intersecting the formation. Apparatus include a carrier body having a pocket formed in an outer surface, the pocket being defined by a plurality of walls and a bottom; a pad configured to emit EM energy, the pad having an outer face, a plurality of sides complementary to the plurality of walls, and an inner face positioned adjacent to the bottom, wherein the pad is movably disposed in the pocket such that a gap separates at least one wall of the plurality of walls and at least one side of the plurality of sides; and at least one electrically conductive member forming an electrical connection between the carrier body and the pad and covering the gap. The pad may be slideably disposed in the pocket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.