土耳其卡赞碱矿对接井分层同时开采设计方案探讨
投稿时间:2020-04-22  修订日期:2020-07-13  点此下载全文
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作者单位E-mail
刘汪威 中国地质科学院勘探技术研究所 liuww88@qq.com 
基金项目:中国地质调查局地质调查项目“土耳其卡赞-贝帕扎里天然碱矿探采方法技术合作”(编号:DD2019090602)
中文摘要:土耳其卡赞天然碱矿采用了对接井水溶开采的方法,目前已成功完成了100余组对接井组,创造了显著的社会与经济效益。为了提高矿山的利用率,根据现有情况和地质条件,本文针对卡赞四期钻井工程,提出了3种分层同时开采碱层的可选方案进行探讨。在总体方案已基本确定的情况下,提出了分层同时开采的布井原则,并对3种方案进行了简要阐述及各项指标对比。本文选择了第三种(1口水平井+2口垂直井)具有钻井工作量少、工期较短及投资费用较低等优点的可选方案,详细阐述了垂直井施工、水平井施工及溶采操作,并提出了一些技术问题与建议。该分层同时开采方案对于天然碱矿的多层同时开采及回采率提高具有一定的指导作用和借鉴意义。
中文关键词:天然碱矿  水溶采矿  水平井  对接井  分层同时开采  土耳期卡赞碱矿
 
Simultaneous slicing design scheme discussion in intersected solution mining well sets for Kazan Soda trona mine in Turkey
Abstract:In Kazan Soda trona mine, Turkey, the method of solution mining with intersected well sets has been adopted, and around 100 intersected well groups were constructed successfully, which brings about remarkable social and economic benefits. In order to improve the utilization rate of mine, based on the current situation and geological conditions, three alternative schemes for simultaneous slicing of trona layer for Kazan phase IV drilling project were put forward in the paper. In the case that the overall scheme has been basically determined, the principle of well distribution of simultaneous stratified mining is put forward, and the three schemes are briefly expounded and the indexes are compared. As a result, the 3rd alternative scheme (1 horizontal well + 2 vertical wells) with the advantages of less drilling work, shorter construction period and lower investment cost is selected, and three aspects of the scheme were illustrated in detail, including vertical well construction, horizontal well construction and solution mining operation, and some related technical problems and suggestions were put forward too. The simultaneous slicing scheme could be served as a guidance and reference for the simultaneous multi-layer mining of trona mine and the improvement of recovery rate.
keywords:trona mine  solution mining  horizontal well  intersected well set  simultaneous slicing  Kazan Soda trona mine in Turkey
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