Известия Томского политехнического университета: Инжиниринг георесурсов (May 2019)
Statistical analysis of quality of hardvtovrecover oils
Abstract
Relevance of the research is determined by the need to study the quality parameters of hard-to-recover oils, considered as the main base of oil production growth in the medium term due to the depletion of easily accessible oil. Insufficient knowledge of the qualitative features of these oils creates the difficulties for assessing the prospects and identifying the ways of development of domestic oil and gas complex. The main aim of the study is to analyze the qualitative indicators of various types of hard-to-recover oils using the index of oil quality proposed by the authors, including a study of the features of physicochemical properties and the conditions of occurrence of different types of oils, belonging to different classes of quality (low, medium and high). The methods used in the study: classification of oils by complex quality index and totality of measured physical and chemical characteristics and conditions of occurrence and study on the base of statistical analysis methods of the characteristics of different classes of hard-to-recover oils determined by the results of the classification. The results. The authors proposed a new quality index of hard-to-recover oils. It used for the classifications of hard-to-recover oils for physical and chemical parameters and the index of the oil quality. The paper introduces a brief description of different types of hard-to- recover oils, belonging to different classes of quality. The peculiarities of physical and chemical properties of hard-to-recover oils of low, medium and high quality classes were studied on the base of the analysis of 19000 samples of oils. The research results can be used in the development of new and improvement of existing methods and technologies of oil extraction, refining and transportation of oil with abnormal physical and chemical properties or with complicated conditions of occurrence.
