... reactions cause a continuous increase in the proportion of sp2 (i.e., C=C) bonds with decrease of sp3 (i.e., C-C) bonds. For instance, Figure 1 shows a set of Raman spectra for coal samples varying in their maturity. Increased sp2 leads to blue shift of the G peak, whereas decreased sp3 leads to red shift...

... shale gas complex reservoir Raman Spectroscopy bitumen migrated organic matter Upstream Oil & Gas pore thermal maturity thermal maturation organic matter depositional kerogen migrated om shale sample hydrocarbon gas Raman spectra porosity gas Exposure unconventional resource...

... shifts are reflected by changes in kerogen Raman spectra characteristics (Keleman and Fang, 2001). Figure 1 shows a series of Raman spectra for a sequence of coals varying in their level of maturity. Reservoir Characterization Upstream Oil & Gas complex reservoir quantification Raman...

... Abstract Objectives/ Scope: There is a strong correlation between the ordered and disordered C-C peaks observed in Raman spectra and conventional vitrinite reflectance values that encourage the use of Raman microscopes to characterize micron-sized particles that are not detected with optical...

...-) and D- (Disordered) bands in each Raman spectrum were fit algorithmically to a multi-peak model, yielding a number of diagnostic parameters that correlate with changes occurring in samples as a result of thermal maturation and pyrolysis. Parameters extracted from analysis of Raman spectra were plotted...

... we would prioritize completion of the Upper zone with a lateral in this well. complex reservoir shale gas methane concentration solubilized methane Completion Installation and Operations Raman spectra field trial-2 gas content field trial DRR Upstream Oil & Gas upper zone...