Interpretation of pressure test data
US11230924B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2017 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Nov 29, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V20/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and methods for obtaining initial settings of station-specific parameters descriptive of wellbore/formation properties specific to downhole pressure test stations, and obtaining initial settings of station-shared parameters descriptive of petrophysical properties of petrophysically unique formation zones. A pressure transient model of the zones is obtained by regression utilizing the pressure data of each station and the initial settings of the station-specific and station-shared parameters. The regression analytically determines a model value of at least one of the station-specific parameters and the station-shared parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.