Perm Journal of Petroleum and Mining Engineering (Mar 2019)
The study of luminescent-bitumen characteristics of organic substances of Domanik type deposits in the Perm region
Abstract
The reduction of the oil and gas resource base in the old producing areas, including the Perm region, leads to the need for a detailed study of the processes of hydrocarbons generation, migration and accumulation. Successful prediction of petroleum potential is impossible without studying the geochemical properties of oil and gas source rocks. Determination of the content of dispersed organic matter in the rock, the degree of bituminousness of the rocks, the composition of the organic matter allow us to estimate the generation potential of the sediments and use it to assess the oil and gas content of the territory. On the territory of the Perm region the Domanik type deposits are the main source of hydrocarbons for the oil and gas fields. The deposits of the Domanik type include the Sargayevsky and Domanik horizons of the Middle Frasnian substage, the Mendym horizon and the upper undifferentiated stratum of the Upper Frasnian substage, also the Famennian and Tournaisian layers. These deposits are associated with the development of the Kama-Kinel system of deflections (KKSD). The article contains a statistical analysis of the chemical and bitumen characteristics of the Domanik type sediments, the relationships between well log data and the results of luminescent bitumen research are considered, multidimensional statistical models for predicting organic carbon content based on GIS data are built, organic carbon content maps for received models are created. It was found that, within the entire strata, Domanic sediments have very good oil source properties. By the multidimensional statistical modelling and the construction of maps of organic carbon, it was revealed that the highest concentrations of organic matter in the Domanik horizon are observed in the north-east, central and southern parts of the Perm Region.
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