E3S Web Conf.
Volume 123, 2019Ukrainian School of Mining Engineering - 2019
|Number of page(s)||13|
|Published online||22 October 2019|
Innovative technology for insulating the borehole absorbing horizons with thermoplastic materials
1 Dnipro University of Technology, Department of Technic Prospecting of Mineral Deposits, 19 Yavornytskoho Ave., 49005 Dnipro, Ukraine
2 Ivano-Frankivsk National Technical University of Oil and Gas, Department Drilling of the Wells, 15 Karpatska St., 76019 Ivano-Frankivsk, Ukraine
3 Lviv Polytechnic National University, Department of Technical Mechanics and Dynamics of Machines, 12 S. Bandery St., 79013 Lvіv, Ukraine
* Corresponding author: email@example.com
The purpose of the work is to increase the insulation work efficiency by using thermoplastic mixes based on polyethylene terephthalate. The tasks set were solved by a complex method of research, including the analysis and synthesis of the literary and patent sources, as well as conducting the analytical and experimental studies. The experimental data were processed on a PC using the methods of mathematical statistics. A method for insulating the absorbing horizons with thermoplastic materials has been developed and substantiated. To implement it, the following technological operations should be performed: supply of the thermoplastic materials to the borehole bottom, melting and squeezing of thermoplastic materials into absorption channels. For various geological and technical conditions of drilling, technological schemes of insulating the absorbing horizons with thermoplastic materials are proposed. The use of the household waste based on polyethylene terephthalate has been proposed as the plugging material to insulate the absorbing horizons of boreholes. For the first time, the possibility of using the household waste based on polyethylene terephthalate as the plugging thermoplastic material has been substantiated and proved. For the first time, a method for determining the efficient range of technology application for absorbing and unstable horizons insulation with thermoplastic materials through the use of bottom hole thermal sources has been substantiated analytically.
© The Authors, published by EDP Sciences, 2019
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