STIMULATION OF URANIUM RECOVERY BY TREATMENT OF SEEPAGE ZONES OF WELLS

Khiagda uranium producer operates the in-situ leach technology under permafrost watertight stratum up to 70 m thick. This circumstance demands continuous performance of process wells and unhampered flow of leaching solution with pumping out of pregnant solution. A shortstop in operation of wells can result in formation of an ice plug and in inactivation of scavenging wells. Productivity of scavenging wells reduces as seepage zones of the wells are subjected to physical and chemical colmatation. Stimulation of uranium recovery is an urgent problem. Repair-and-renewal operations (RRO) aimed to break mudding aggregates using integrated methods (injection, chemical treatment, air impact, pneumo-swabbing, hydraulic scraping, flushing with leaching solutions) considerably improve productivity of wells. The article estimates efficiency of some methods and characterizes their integration abilities according to the research results of 2018. Sequential implementation of appropriate methods and timely RRO results in considerable growth of uranium production.


For citation: Verkhoturov A. G., Sabigatulin A. А. Stimulation of uranium recovery by treatment of seepage zones of wells. MIAB. Mining Inf. Anal. Bull. 2019;(7):13-20. [In Russ]. DOI: 10.25018/02361493-2019-07-0-13-20.

Keywords

Geotechnology, uranium, well, leaching, seepage zone, colmatation, productivity, recovery, permafrost area.

Issue number: 7
Year: 2019
ISBN: 0236-1493
UDK: 624.131.1:622.016.25(571.55
DOI: 10.25018/0236-1493-2019-07-0-13-20
Authors: Verkhoturov A. G., Sabigatulin A. А.

About authors: A. G. Verkhoturov, Cand. Sci. (Geol. Mineral.), Assistant Professor, Head of Chair, e-mail: weral0606@yandex.ru, A .А. Sabigatulin, Graduate Student, e-mail: ya.sabik1994@yandex.ru, Transbaikal State University, 672039, Chita, Russia. Corresponding author: A.G. Verkhoturov, e-mail: weral0606@yandex.ru.

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