Extendable/collapsible apparatus for fracture imaging and use of same
US10267140B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2016 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Feb 22, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/1429
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Fracture imaging modules having one or more 3-component sensors, are incorporated into a tool comprising two or more of the modules for detecting microseismic events in a formation from the same wellbore as is being stimulated. The modules are locked together in a compact mode to permit injection into the wellbore through a conventional lubricator which has a fixed length. Once injected into the wellbore, the modules are spaced from one another in an extended mode to form an axially spaced sensor array which increases the measurement window in the wellbore compared to sensor arrays conventionally injected through a fixed length lubricator. Following the operation, the modules are actuated to return to the compact mode for pulling out of the hole through the lubricator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.