Downhole acoustic density detection
US10036242B2 · kind B2 · utility
2Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2014 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Jan 27, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Fluid densities can be monitored in real-time in a wellbore, such as during downhole stimulation operations, using an acoustic pressure-sensing system. The measured acoustic signal can be used to determine pressure fluctuations of a fluid in non-laminar flow. An estimated density of the fluid can be calculated based on the pressure fluctuations of the fluid and a known flow rate of the fluid. The flow rate of the fluid can be known, such as when being held constant by surface equipment or when measured at the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.