铀矿绿色勘查泥浆随钻处理装备研究
投稿时间:2021-06-01  修订日期:2021-09-16  点此下载全文
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作者单位邮编
温得全 核工业二〇三研究所陕西 西安 710086 710086
王贵 核工业二〇三研究所陕西 西安 710086 710086
邵盛元 核工业二〇三研究所陕西 西安 710086 710086
刘治国 核工业二〇三研究所陕西 西安 710086 710086
李斌 核工业二〇三研究所陕西 西安 710086 710086
汪成勇 核工业二〇三研究所陕西 西安 710086 710086
王德鹏 核工业二〇三研究所陕西 西安 710086 710086
基金项目:中核集团青年英才项目“铀矿绿色勘查泥浆处理装备研制与应用”
中文摘要:随着环境保护和泥浆性能维护在地质勘查中越来越重要,铀矿钻探施工中对泥浆的净化处理提出了更高的要求。本文依据铀矿钻探单孔施工周期短、设备搬迁频繁和泥浆处理量小的特点分别提出了一套适合砂岩型和硬岩型铀矿勘查的泥浆随钻处理工艺,并分别研制了2套小体积、模块化和智能化的砂岩型和硬岩型铀矿绿色勘查泥浆随钻处理装备。通过现场试验论证,本装备在铀矿钻探施工中取得了良好的环保效益和经济效益,实现了一次配浆多孔使用和泥浆零排放的目标,节约材料的同时提高了施工效率,从根本上解决了钻探施工中泥浆排放污染环境的难题。经过该设备处理后的泥浆,有害固相大幅度减少,泥浆密度降低,流变性提高,保持了较好的泥浆性能,降低了埋钻、卡钻等孔内事故的发生几率,保证了孔内安全,提高了钻孔质量。设备模块化组装,搬迁运输方便,适用于各种地形和交通条件,可在铀矿钻探施工中推广应用。
中文关键词:铀矿  绿色勘查  泥浆净化处理  泥浆处理装备  环境保护
 
Development of equipment for mud treatment while drilling in uranium green exploration
Abstract:As environment protection and mud property maintenance in geological exploration are becoming increasingly important, higher requirements have been put forward for drilling mud purification in uranium exploration. In view of the characteristics of short construction period per borehole, frequent equipment movement and small mud handling capacity in uranium drilling, two mud treatment while drilling processes have been proposed each for sandstone uranium deposit and hard-rock exploration; besides, two sets of compact, modular and intelligent mud treatment while drilling equipment also have been developed for sandstone and hard-rock uranium green exploration. Field test has verified that the equipment provided good environmental protection benefits and economic benefits, achieving the goal of one mud formula for multiple holes and zero mud discharge with increase in in drilling efficiency while saving materials; thus it has solved fundamentally the problem of environmental pollution caused by mud discharge during drilling. The drilling mud treated by the equipment contained much less harmful solid phase with lower density and improved rheology; thus, it maintained good performance, leading to reduced downhole incidences such as bit burial, drilling string sticking, and ensuring the downhole safety with drilling quality. The modular structure leads to convenient movement and transportation and is suitable for all kinds of terrain and traffic conditions. It can be popularized and applied in uranium drilling.
keywords:uranium mine  green exploration  mud purification treatment  equipment for mud treatment  environmental protection
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