Unconventionals and Shale Gas Reservior
During Phase 8, the anisotropy properties and rock physics modelling of shales was studied. Well logs from Barnett formation provided by Marathon oil have been analyzed through creating rock physics templates, microstructural parameters estimation and seismic modelling.
The quantitative characterization of anisotropy for organic shales was also studied. Aspect ratio and Orientational Distribution Function (ODF) are used to analyze anisotropy originated from shapes and preferred orientation. The model is able to estimate elastic stiffness of organic shales if the mineralogy and kerogen content are known.
The 3D hydraulic fracturing process was simulated to calculate the real-time velocity model of fracturing domain and analyze the influence of fracturing process on microseismic propagation.
In Phase 9, We will continue to develop methodologies including rock physics modelling of non-source shales and soure shales, Seismic response and inversion scheme to estimate the organic content, porosity and brittleness parameters. We will also endeavour to develop a GUI tool to incorporate these functions.