摘要
Abstract
With the development of uranium mining,uranium mining technology has rapidly advanced,but various challenges have emerged.In the process of in-situ leaching of uranium,there is often a phenomenon of decreased pumping and injection volume,which seriously affects the efficiency of ura-nium leaching.In response to the problem of decreased pumping and injection volume,physical,chemical,and combined well cleaning techniques have been carried out.The washing technology can solve the blockage around the wells,but its washing effect lasts for a short time and has a small im-pact radius,which cannot fundamentally solve the problem of decreased flow rate.The liquid flow cavitation technology is widely used in petroleum extraction,which can effectively increase the pro-duction of pumping wells and reduce the pressure of injection wells.However,it has not been in-volved in the in-situ of uranium process.In this paper,by comparing the difference between uranium leaching technology and petroleum technology,the cavitation device is optimized,and the drilling wellhead device is improved in the ground test,and then the liquid flow cavitation test is carried out.During the test,the operation displacement reached 2 m3/min and the pressure was about 21 MPa,which verified the feasibility of liquid flow cavitation technology in in-situ of uranium,and provided a new idea for improving the permeability of uranium mine.关键词
液流空化/地浸采铀/解堵/增渗/空化器/洗井Key words
liquid flow cavitation/in-situ leaching of uranium/remove plugging/increase permeabili-ty/cavitation device/well washing分类
能源科技
