Method of calibrating fracture geometry to microseismic events
US9618652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2013 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Sep 20, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of performing a fracture operation at a wellsite about a subterranean formation having a fracture network with natural fractures is provided. The wellsite is stimulated by injection of fluid into the fracture network. The method involves generating wellsite data including natural fracture parameters and obtaining measurements of microseismic events, modeling hydraulic fractures of the fracture network based on the wellsite data and defining a hydraulic fracture geometry of the hydraulic fractures, generating a stress field of the hydraulic fractures using a geomechanical model, determining shear failure parameters comprising a failure envelope and a stress state about the fracture network, determining a location of shear failure of the fracture network from the failure envelope and the stress state, and calibrating the hydraulic fracture geometry by comparing the modeled hydraulic fractures and the locations of shear failure against the measured microseismic events.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.