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Vector Double-Beam Characterization for Discrete Fractures in Geological Carbon Storage Sites

Description: 

Geological carbon storage (GCS) is an important element in carbon management for mitigating global climate change. Knowing the existence of fractures is critical in selecting GCS sites and assessing potential supercritical CO2 leakage and induced earthquakes in basement rocks. In conventional 3D seismic images, these fractures are very hard to identify because they are associated with weak image amplitudes. We develop a new vector double-beam method to characterize subsurface fracture networks. Such information is useful in GCS site selection and can be used to infer stress state and assess potential seismic hazards caused by fluid injection. Results from both synthetic seismic datasets and field datasets demonstrate that our new method is effective in characterizing fracture orientation, density, and mechanical compliance.

Session: Seismology for the Energy Transition [Poster]

Type: Poster

Date: 4/18/2023

Presentation Time: 08:00 AM (local time)

Presenting Author: Yingcai Zheng

Student Presenter: No

Invited Presentation: 

Authors