Mapping inter-well porosity using tracers with different transport properties
US11994020B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Sep 21, 2022 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Sep 21, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/22
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for mapping inter-well porosity includes injecting a Type 1 tracer into a hydrocarbon-bearing reservoir via an injector well, wherein the Type 1 tracer is a passive tracer, injecting a Type 2 tracer into the hydrocarbon-bearing reservoir via the injector well, wherein the Type 2 tracer is a porosity-sensitive tracer, detecting a breakthrough of the Type 1 tracer and a breakthrough of the Type 2 tracer in produced fluid at a producer well, and comparing the breakthrough of the Type 1 tracer with the breakthrough of the Type 2 tracer to provide a map of inter-well porosity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.