Известия Томского политехнического университета: Инжиниринг георесурсов (Nov 2020)
DEFINITION OF DEFORMATIONS OF STEEL VERTICAL CYLINDRICAL RESERVOIR WITH VOLUME OF V=10000 m³ FOR OIL USING TERRESTRIAL LASER SCANNING
Abstract
The relevance of the topic is caused by the need to develop new approaches to assessing and forecasting structural changes in the space of critical engineering structures. The solution to this problem is associated with a large number of uncertain factors, such as incomplete laboratory data on the properties of materials, as well as field dynamic and static tests of such structures, lack of analytical information and monitoring studies. The article analyzes the results of field studies of deformations of a steel vertical cylindrical tank with a volume of V=10000 m³ for storage of salable and substandard oil and compares it with a numerical analysis of its stress-strain state. The purpose of the study is to analyze the data on the actual deformation of the object obtained as a result of terrestrial laser scanning, and assess its stress-strain state. The object of the study is the change in the stress-strain state of a steel vertical tank with a volume of V=10000 m³ for storage of salable and substandard oil located on the site of the oil treatment facility and gas turbine power plant of the Suzunskoe field of LLC RN-Vankor. Methods. The initial data for modeling the behavior of the structure were materials of terrestrial laser scanning of the examined area. The stress-strain state of the structure was investigated using a software package based on the finite element method. Laser scanning technology was used to assess changes in the spatial-coordinate position and construct an accurate 3D model of the observation object. The object was scanned with a Leica Scanstation C10 terrestrial laser scanner, then the point cloud was processed in the Leica Cyclone 8.0 software package, the determination of the reservoir deformations was carried out in the 3D Reshaper software, ANSYS was used to analyze the stress-strain state of the object under study. The results. The stress-strain state of the reservoir is estimated. A digital calculation model was created. The simulation results are compared with the position of the structures in the space obtained by laser scanning.
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