Assessment of the possibility of using solvent reagents at the stage of field development design to optimize the production of high-viscosity oil
This paper examines results of laboratory experiments, namely rheological studies of hight-viscosity oil from Smolkino located in west of Samara region. Also in this article results of the analysis of the oil composition of the Smolkino field are given. Based on compositional analysis of this high-viscosity oil, it is necessary to have aromatic hydrocarbons and surfactants of dispersing type in solvents to destroy the thixotropic structure of the oil and, consequently, to effectively reduce it’s viscosity. The example of testing the «Akris» composition of the company «Akribia Lab» at the Strelkovskoye field is given. The oil of this field has a similar component composition with the Smolkino oil. It is concluded that the use of chemical compositions, solvents, demulsifiers etc is a more preferable option for developing deposits with similar oils. In order to justify the use of solvent reagents, eight samples of chemical compositions containing surfactants and aromatic hydrocarbons were studied, and the effect of the solvents studied on the rheological properties of the high viscosity oil of Smolkino was also studied. Based on the results of the work, two reagents were selected, which showed the maximum efficiency in terms of reducing the viscosity of oil. Curves of the flow of crude oil and samples with the addition of reagents are presented. In the conclusion of scientific work it is possible ti draw conclusions about the need to take into account the properties of oil, the effectiveness of solvent reagents, the Akris line, and the need for further research in the field of development of oilfield chemistry.