Injection-backflow technique for measuring fracture surface area adjacent to a wellbore
US8162049B2 · kind B2 · utility
3Cited by
42References
18Claims
0Family size
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Inventor
Key dates
| Filing date | Jun 11, 2010 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Jun 11, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/008
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An injection backflow method for measuring fracture surface area adjacent to a wellbore measures an initial temperature profile along the length of a wellbore. A tracer composition is injected into the wellbore at an initial concentration. The tracer composition includes a reactive tracer and a secondary tracer that is less reactive than the reactive tracer. The tracer composition diffuses within subterranean reservoir for a time. A secondary tracer concentration and a reactive tracer concentration are measured as a function of time. A reservoir fracture surface area is calculated using a reservoir fluid flow model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.