Acoustic velocity measurements using tilted transducers
US9631480B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2009 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Jul 18, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/107
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus, systems, and methods may operate to emit acoustic pulses into a drilling fluid in a well bore, using a first acoustic transducer in a downhole tool, and detecting the acoustic pulses after reflection from the wall of the well bore, using a second acoustic transducer in the downhole tool. The faces of the first and second acoustic transducers are non-parallel. Further activities include emitting additional acoustic pulses into the drilling fluid using the second acoustic transducer, and detecting them using the second acoustic transducer. The acoustic velocity of the drilling fluid can be determined based on respective travel times. Additional apparatus, systems, and methods are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.