Apparatus and method for detecting fracture geometry using acoustic telemetry
US9557434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2013 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Mar 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/646
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An electro-acoustic system for downhole telemetry employs a series of communications nodes spaced along a string of casing within a wellbore. The nodes allow wireless communication between transceivers residing within the communications nodes and a receiver at the surface. The transceivers provide node-to-node communication of data indicating elastic waves generated as a result of the formation of subsurface fractures. The data is processed which generates a map of fracture geometry. A method of evaluating fracture geometry in a subsurface formation uses a plurality of data transmission nodes situated along the casing string which send signals to a receiver at the surface. The signals are analyzed which generates a subsurface map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.