DEVELOPMENT OF HYDROTHERMAL MINERAL DEPOSITS WITH THE TRANSPORT OF STEAM-WATER MIXTURE: NEW CHALLENGES

The main problems connected with the transport of steam–water mixture revealed in the course of development of hydrothermal mineral deposits include: instability of transport at low flow rates and considerable hydraulic resistance at high flow rates. The domestic experience of steam–water mixture pipeline design using MODEL software for modeling dispersed–annular flows is analyzed. The key provisions of the software are presented, and its high efficiency in pipeline design for high-rate mixture flow is emphasized. Based on the analysis of the domestic and foreign experience gained in development of hydrothermal mineral deposits, the article sets new challenges which call for a scientific basis to be provided for steam–water transport at low rates with regard to the modern knowledge on the stability of steam–water flows. Using such scientific basis, it is expedient to create a new computation procedure for pipeline pressure difference in order that gravity component is duly taken into account, which will enable prediction of unstable modes in operation of wells and appropriate decision-making on elimination of such modes at the pipeline design stage.

The study was supported by the Russian Federation for Basic Research, Project No. 16-05-00398 a.

Keywords

Geothermal reserves, hydrothermal deposit, steam–water mixture, well, pipeline.

Issue number: 2
Year: 2019
ISBN: 622.977:532.55
UDK:
DOI: 10.25018/0236-1493-2019-02-0-43-49
Authors: Shulyupin A. N., Chermoshenceva A. A., Varlamova N. N.

About authors: Shulyupin A.N. (1), Doctor of Technical Sciences, Deputy Director for Research and Innovation, e-mail: ans714@mail.ru, Chermoshenceva A.A., Candidate of Technical Sciences, Assistant Professor, e-mail: vnn-dvgups@mail.ru, Kamchatka State Technical University, 683003, Petropavlovsk-Kamchatsky, Russia, Varlamova N.N. (1), Graduate Student, Senior Engineer, 1) Institute of Mining of Far Eastern Branch of Russian Academy of Sciences, 680000, Khabarovsk, Russia.

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