Real-time processing and control of DAS VSP surveys
US11555939B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2016 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Apr 2, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/3248
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for processing DAS VSP surveys in real-time is provided. The system includes a DAS data collection system coupled to at least one optical fiber at least partially positioned within a wellbore and configured to repeatedly activate a seismic source of energy. The system further includes an information processing system connected to the DAS data collection system. A seismic dataset is received from the DAS data collection system. The seismic dataset includes a plurality of seismic data records. Two or more of the plurality of seismic data records are combined into a stack. A quality metric indicative of a desired signal-to-noise ratio or incoherence of the stack is determined for each processed seismic dataset collected from a repeated source. Instructions are sent to the DAS data collection system to stop activating the seismic source, in response to determining that the quality metric has reached a predefined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.