Bi-directional flow and distributed temperature sensing in subterranean wells
US9021875B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2010 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Jun 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/2823
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of determining characteristics of fluids flowed between a wellbore and multiple zones intersected by the wellbore can include measuring a first distributed temperature profile of the fluids along the wellbore while the fluids flow in one direction through the wellbore, and measuring a second distributed temperature profile of the fluids along the wellbore while the fluids flow in an opposite direction through the wellbore. Another method can include flowing the fluids in a first direction through an annulus formed between tubular strings in the wellbore, measuring a first distributed temperature profile of the fluids while flowing the fluids in the first direction, flowing the fluids in a second, opposite direction through the annulus, and measuring a second distributed temperature profile of the fluids along the wellbore while flowing the fluids flow in the second direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.