广西苗儿山大厚度水敏性地层冲洗液技术研究及应用OA
Research and application of drilling fluid technology for thick water-sensitive formations in the Miaoershan area of Guangxi
广西苗儿山地区铀矿找矿潜力巨大,但局部地区地层复杂,存在大厚度水敏性地层及破碎地层,钻探施工中频繁遇到孔壁坍塌及钻孔超径等难题,导致孔内事故频发,严重影响施工进度.因此,对该地区水敏性岩心进行了矿物成分和微观特征分析,分析结果表明水敏性地层含有大量蒙脱石、高岭石、水云母等粘土矿物,且微裂隙发育,水化膨胀严重.针对以上问题,通过室内实验评价,优选了新型成膜护壁材料,进一步研制了护壁性良好的成膜护壁冲洗液体系,其最优配方为:5%成膜A剂+3%成膜B剂…查看全部>>
The potential for uranium exploration in the Miaoershan area of Guangxi is enormous,but part of the formations are complex,with large thickness of water-sensitive and broken formations.During drilling construction,difficulties such as hole wall collapse and excessively large bore diameter occur frequently,leading to frequent accidents in the hole,which seriously affect the construction progress.Therefore,mineral composition and microscopic characteristics of…查看全部>>
刘俊辉;李晓东
核工业二三〇研究所,湖南 长沙 410011||湖南省伴生放射性矿产资源评价与综合利用工程技术研究中心,湖南 长沙 410011北京探矿工程研究所,北京 100083
地质学
水敏性地层成膜护壁冲洗液孔壁坍塌钻孔超径铀矿勘探
water-sensitive formationfilm-forming wall protection drilling fluidhole wall collapseexcessively large bore diameteruranium exploration
《钻探工程》 2024 (5)
154-162,9
中国核工业地质局铀矿地质项目"苗儿山—越城岭地区铀矿资源调查评价与勘查"(编号:2022-22)
评论