Kerogen- Kerogen is a fine-grained, amorphous organic matter. Pores within organic matter (OM) are strongly linked to hydrocarbon generation and primary migration in fine-grained source rocks and are very important for evaluating hydrocarbon storage and flow in shale reservoirs. Kerogen has four sources: lacustrine, marine, terrestrial, and recycled. The organic solvents were selected to reflect the prevalent hydrocarbon and heteroatom structures in petroleum. Well the generation of hydrocarbon type is given by a specific type of Kerogen. Petroleum was formed from organic matter. Organic matter – Materials comprised of organic molecules in monomeric (e.g., glucose) or polymeric (e.g., cellulose) form derived directly or indirectly from the organic part of organisms. This organic matter is usually a combination of marine and terrestrially-derived organic (plant) and zooplankton (animal), which constitutes more than 95% of the life in the oceans. Geochemistry of Dissolved Organic Matter in a Spatially Highly Resolved Groundwater Petroleum Hydrocarbon Plume Cross-Section. Typical organic constituents of kerogen are algae and woody plant material. It is not soluble to normal petroleum solvents, like carbon disulfide. Glucose is the starting material for the synthesis of more complex organic compounds either in plants or the animals that eat them. Petroleum is basically the fossil fuel. In general, the amount of CO 2 is dependent on the organic matter type: kerogen type III can produce more CO 2 than richness refers to the amount and type of organic matter contained within the rock. Its chemical compositioin is 75% C, 10% H, 15% other (sulfur, oxygen, nitrogen, etc.). Certain types of organic matter formed at the Earth’s surface eventually produce hydrocarbons. Organic-rich sedimentary deposits. Bitumen forms from kerogen during petroleum generation. The elastic modulus of organic matter can strongly influence the mechanical behaviour of source rocks. Geology (F.K.North) Presented to Prof. Dr. / Shouhdi E. Shalaby Effect of depositional environment. Petroleum originates from a small fraction of the organic matter deposited in sedimentary environments. Coal, oil shale, and petroleum are not sedimentary rocks per se; they represent accumulations of undecayed organic tissue that can either make up the bulk of the material (e.g., coal), or be disseminated in the pores within mudrocks, sandstones, and carbonates (e.g., oil shale and petroleum). This phenome-non can be reproduced by hydrous pyrolysis experiments in the laboratory (Andresen et al. Sci. Download Hi-Res Image Download to MS-PowerPoint Cite This: Environ. ADVERTISEMENT. Deposition of source rock-type sediments The formation of sediments rich in organic matter is restricted to certain conditions of the depositional environment. RETURN TO ISSUE PREV Article NEXT. Hydrocarbon C and H are the components that make up different types of fuel example oil, gas and coal. In this paper, the OM types are systematically identified and analyzed in the Wufeng–Longmaxi Formations from wells JY 1 and JY 2 in the Jiaoshiba gas field, Sichuan Basin. The increase of pressure and temperature slowly transformed the organic matter into hydrocarbons (kerogen, oil, gas). Thermal maturation of kerogen during petroleum for-mation can release large quantities of CO 2. Although recent advances have shed crucial light on the mechanical properties of natural organic matter under ambient conditions, the elastic properties of kerogen and bitumen at reservoir temperatures remain poorly constrained. The conversion of organic matter to petroleum 1. of petroleum source rocks ... dependent on the type of organic matter and on the thermal energy (time and temperature); the rock has already gone through in the subsurface [1]. Thus, it is critical to clarify the features of OM-hosted pores and their evolution in organic-rich mud rocks. However, instead of the pure kerogen types as we've seen on previous diagrams, in reality, most organic matter actually contains a mixture of different kerogen types. Suez University Faculty of Petroleum & Mining Engineering The Conversion of Organic Matter to Petroleum Student Belal Farouk El-saied Ibrahim Class / III Section / Engineering Geology and Geophysics The Reference / Pet. Kerogens have a high molecular weight relative to bitumen, or soluble organic matter. Depending on the amount and type of organic matter, hydrocarbon generation occurs during the mature stage at depths of about 760 to 4,880 metres (2,500 to 16,000 feet) at temperatures between 65 °C and 150 °C (150 °F and 300 °F). CONTENT TYPES. Kero-gen is distinguished from bitumen because it is insolu-ble in normal petroleum solvents whereas bitumen is soluble (Selley 1985). 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