Guided wave downhole fluid sensor
US9726014B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Sep 25, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods, systems, and devices for downhole evaluation using a sensor assembly that includes a sensor plate, wherein a surface of the sensor plate forms a portion of an exterior surface of a downhole tool. Methods may include submerging the surface of the sensor plate in a downhole fluid in a borehole; activating the sensor assembly to generate a guided wave that propagates along the sensor plate, wherein propagation of the guided wave along the sensor plate is dependent upon a parameter of interest of the downhole fluid; and using information from the sensor assembly relating to the propagation of the guided wave along the sensor plate to estimate the parameter of interest. Methods may include isolating an opposing surface of the sensor plate from the downhole fluid. The guided wave may be an interface guided wave or may propagate in the plate between the surface and an opposing surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.