Abstract
The studied deposit is located on the territory of the Republic of Tatarstan (Russia). The reservoir formation is represented by bituminous sandstone. The deposit is being developed by steam-gravity drainage (SAGD). The researchers noted that the reservoir has the variability of petrophysical parameters in thickness. The correct adjustment of the lithological model will allow us to assess the variability of the reservoir characteristics by its thickness, which can better predict its reservoir and elastic properties. The article presents the results of the modeling of the mineralogical composition of rocks and the coefficient of total porosity. Results received using the statistical reverse method of constructing a volume model. This method is based on geophysical well logging used to predict the content of rock-forming components of the studied sediments. The use of core data, in particular X-ray phase analysis, made it possible to evaluate the results of the lithological model.
Highlights
Since the beginning of the 70s of the 20th century, research and experimental-industrial work has been carried out on the deposits of heavy oils and natural bitumen in the Republic of Tatarstan (Russia)
The article is devoted to developing an algorithm for constructing a volumetric lithological model of bitumen-saturated rocks of the Ufa stage of the Permian system
To carry out logging data to uniform conditions, a double difference parameter was calculated for the neutron gamma logging (NGL) GR methods
Summary
Since the beginning of the 70s of the 20th century, research and experimental-industrial work has been carried out on the deposits of heavy oils and natural bitumen in the Republic of Tatarstan (Russia). Based on the study of foreign experience, TatNIPIneft researchers decided that thermal methods of impact on the formation can be used to develop such deposits [1]. The object of study is occurring of the Permian. It is developing by the method of steam-gravity drainage. This method of developing the efficiency of hydrocarbon extraction largely depends on the possibilities of fluid movement in the productive reservoir. In this regard, determining the mineralogical composition and petrophysical characteristics of the reservoir rock and the surrounding formations is becoming more relevant. The article is devoted to developing an algorithm for constructing a volumetric lithological model of bitumen-saturated rocks of the Ufa stage of the Permian system
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