System and method of monitoring flow in a wellbore
US8172007B2 · kind B2 · utility
23Cited by
22References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2009 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Nov 13, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/138
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system and method for releasing a marker within a wellbore. The system and method includes a sensor that detects movement or a position of the marker within the wellbore. The marker may be released in drilling fluid, for example, and may travel from the surface to the drill bit and return to the surface with cuttings. As an example, the markers are used to determine the flow of cuttings within the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.