Method and device for determining a rheological transition level
US8833156B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 22, 2010 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Sep 19, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C13/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method for determining the thickness of an upper layer of a fluid mass comprising at least this upper layer and a lower layer lying thereunder, such as a waterway with a navigable upper layer and a viscous mud layer located thereunder, wherein the viscosity of the fluid of the lower layer is greater than the viscosity of the fluid of the upper layer, wherein a body freely movable in the fluid mass is moved through the fluid mass at a velocity such that the body enters a state of equilibrium substantially at the interface between the lower and upper layer; the depth position of the body is determined at successive points in order to know the thickness of the upper layer at these points; and the resistivity of the fluid in the vicinity of the body is measured at successive points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.