Earth, Atmosphere & Environment Sciences
Title : | Experimental and numerical studies on fracture propagation and matrix deformation in deep seated basalts. |
Area of research : | Earth, Atmosphere & Environment Sciences |
Focus area : | Seismology |
Principal Investigator : | Dr. Vikram Vishal, Department of Earth Sciences, Indian Institute of Technology Bombay, Maharashtra, Mumbai, Maharashtra Phone no-022-25767254 ; |
Timeline Start Year : | 2019 |
Timeline End Year : | 2021 |
Details
Executive Summary : | Injection induced seismicity in deep
geological formation may cause fluid overpressure. The excess fluid pore pressure brings
the reservoir close to failure conditions, likely to lead to the formation of secondary
fractures. The fracture formations during fluid injection and post-injection seismicity are
extremely important and the mechanics is not completely understood due to the
involvement of natural and external factors. However, the fracture formation and
interaction with native reservoir facture/faults may also favor earthquakes due to sliding
of the fracture and the modification of stress fields. The objective of this study is to
understand mechanisms of fracture initiation/formation, propagation and induced
seismicity. To understand these processes, the mechanical behavior of reservoir rock at
different stress states is extremely important. The aim of this project is to perform
laboratory based experiments followed by development of the validated numerical models
which can accurately predict the long term behavior of the deep sub-surface strata for
various applications. The following key objectives are formulated:
Determine the rock-response at native deep sub-surface conditions
Identify the evolution of weak zones in deep rock samples with loading and
unloading
Investigate relationship between fracture formation and stress fields at varying rock
strata conditions.
Investigate the mechanics triggering the seismicity in deep underlying reservoir.
Evolution of rock response under fluid flow states for deeper reservoirs.
The above objectives will be achieved through various experimental and numerical
techniques available at the institutes |
Co-PI: | Dr. Sachchida Nand Pandey Institute post-doctoral fellow Department of Earth Sciences Indian Institute of Technology Bombay, Maharashtra, Mumbai, Maharashtra E-mail ID:, Phone no: 9884790556, Dr. S. P. Pradhan Department of Earth Sciences Indian Institute of Technology Roorkee, Uttar Pradesh Roorkee, Uttar Pradesh, Uttarakhand, India -247667 :, Phone no:+91 1332 284851 |
Total Budget (INR): | 15,00,000 |
Organizations involved