System and method to measure mud level in a wellbore annulus
US11802788B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2023 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Mar 14, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Systems include a floating device disposed on a top of a column of drilling fluid in an annulus of a wellbore. The floating device includes a capsule. A transmitter or a reflector may be coupled to the capsule. The floating device may transmit signals to a surface region from the annulus or receive signals from the surface region and reflect at least a portion of the received signals. A receiver in the surface region receives transmitted signals or reflected signals from the floating device and determines a distance between the floating device and a reference point in the surface region. The distance indicates a level of the drilling fluid in the annulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.