Determining change in permeability caused by a hydraulic fracture in reservoirs
US10444389B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2014 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jul 16, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/1234
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method can include deriving a cloud of microseismic events corresponding to a fracturing operation in an environment by spatially locating the microseismic events in the environment via a seismic velocity model; extracting a set of fracture planes from the microseismic cloud; assigning characteristics to the fracture planes; determining a second-rank fracture compliance tensor and a fourth-rank fracture compliance tensor based on the characteristics of the fracture planes; determining a change in elastic stiffness of the environment using the second-rank fracture compliance tensor and the fourth-rank compliance tensor; and updating the seismic velocity model based at least in part on the change in the elastic stiffness of the environment or determining permeability in the environment based at least in part on fracture plane locations, orientations and apertures. Various other apparatuses, systems, methods, etc., are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.