D (FTIR) spectroscopy in transmission and ATR modes, as well as
D (FTIR) spectroscopy in transmission and ATR modes, as well as FTIR microscopy in the rock surface. The application of the procedures has been verified making use of the information obtained by Rock-Eval pyrolysis and differential thermal analysis with the organic matter. The removal of carbonate minerals prior to the experiment expands the capabilities with the IR spectroscopy method for studying the structure of organic matter straight in rock with out the preliminary stage of kerogen separation. FTIR microscopy (ATR, normalization process) employed for organic matter surface distribution analysis reveals the heterogeneity of organic matter and mineral composition. The obtained -Irofulven References outcomes demonstrate the prospects of FTIR spectroscopy and microscopy for non-destructive and express analysis from the chemical structure and distribution of organic matter in rocks, which includes a study kerogen composition in organic-rich shales. Bulatov et al. [8] have found the luminescent layers containing a significant quantity of alginite in the Upper Jurassic ower Cretaceous Bazhenov Formation (West Siberia, Russia). The composition in the organic matter in so-called “alginite-rich layers” differs drastically from that inside the organic-rich siliceous Bazhenov rocks. Rock-Eval pyrolysis, elemental analysis, bulk kinetics of thermal decomposition, and molecular composition of pyrolysis items indicate type I kerogen to be the predominant element with the organic matter. Evaluation of the isotope composition of carbon, nitrogen, and sulfur provides insights into their origin and formation pathways. The layers proved to be good regional stratigraphic markers due to wide distribution more than the central a part of Western Siberia. The luminescence of the layers modifications the colour and intensity through maturation; this observation may be applied for maturity evaluation of the deposits from the immature stage for the middle in the oil window. Bogdanovich et al. [9] go over the Polmacoxib Epigenetics troubles of interaction on the organic matter and the siliceous arbonate mineral matrix in organic-rich low-permeability rocks of your Upper Devonian Domanik Formation (Upper Kama Depression, Volga-Ural Basin, Russia). The authors identify intervals where organic matter can kind a complex association using the siliceous arbonate matrix using results of a complicated study with light microscopy, X-ray diffraction evaluation, scanning electronic microscopy, evaporation approach, as well as the Rock-Eval pyrolysis. In some situations, the mineral carbonate matrix and also the organic matterGeosciences 2021, 11,four ofform a one-whole high-molecular compound. It seems the organic matter is immobilized in to the structure of the mineral carbonate matrix within the course of sedimentation. At the deposition and diagenesis stage, the carbonate matter interacts with acids of the organic matter and types natural organo-mineral polymers. Water saturation, porosity, and geochemical properties of such polymers shed new light onto the issues of generating hard-to-develop nonconventional carbonate reservoirs and evaluating the related dangers. Postnikova et al. [10] recognize the forms of void space inside the sediments as well as the distribution patterns across the section on the researched wells drilled in 5 unique locations of your Bazhenov formation (West Siberia, Russia). The deposits are represented by a wide complex of lithotypes, like different types of silicites, carbonate, clay rocks, and mixtites (the mineral composition of your rocks from different lithotypes w.
