Injection withdrawal tracer tests to assess proppant placement
US11294349B1 · kind B1 · utility
1Cited by
6References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 25, 2018 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | May 10, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/40585
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Placement of proppant in subterranean formations during hydraulic fracturing is assessed. A method of one aspect includes introducing a hydraulic fracturing fluid including a proppant into a subterranean formation through a well. Samples of the hydraulic fracturing fluid are recovered through the well over a period of time. A concentration of at least one tracer in each of the samples is determined. The concentrations of the at least one tracer in the samples are analyzed to assess placement of the proppant in the subterranean formation. Other methods, apparatus, and systems are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.