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Keywords Hole caving;Lost circulation;Polysulfonate drilling fluid system;MMH drilling fluid.; 井塌;井漏;聚磺钻井液体系;MMH钻井液体系;
Keywords hole stabilization;hole cave;stabilizer;shale sloughing;copolymer;anti-sloughing drilling fluid; 井眼稳定;页岩坍塌;稳定剂;页岩;共聚物;防塌钻井液;
Keywords hole caving;lost circulation;anti sloughing mud;temperary plugging agent;mud performance control;Eogene;Lunpola basin;XL4 well Li Li;working in No 4 Surveying and Exploration Team of MGMR.; 井塌;井漏;防塌钻井液;钾盐钻井液;屏蔽暂堵剂;钻井液性能控制;第三纪伦坡拉盆地;XL4井;
As a result,the short hole shrinkage method with flat bottom structure was employed to mine the stope firstly,then stoping ore pillar by medium length hole caving method. 后沟金矿采用平底结构浅孔留矿法先采矿房，后用中深孔崩落法回采矿柱，经两年多的生产实践，取得较好的技术经济指标。
Keywords Polymer mud;Deep well;Coalbed;Well cleanout;Hole caving; 聚合物钻井液;深井钻井;煤层;井眼净化;防塌;
Keywords Heavy-water deposit;Mining method;Water-resisting pillar;Medium-length hole caving;Subsequent backfilling; 大水矿床;采矿方法;隔水矿柱;中深孔落矿;嗣后充填;
Keywords hole stabilization;mudstone;shale;critical point;time; 井眼稳定;泥岩;页岩;临界点;时间;
Keywords hole transpart material;styryl triarylamine;reduction; 空穴传输材料;苯乙烯基三芳胺;还原;
Keywords hole wall;dynamic pressure;manganin pressure resistance sensor; 岩石孔壁;动态压力;锰铜压阻传感器;
Keywords hole polygonal double crystal arch combined searching unit; 孔洞;多角度双晶弧形组合探头;
Keywords hole transport material;triaryl amine;oxadizole;synthesis;application; 空穴传输材料;三芳胺;恶二唑;合成;应用;
Keywords hole stabilization;temperature analysis;calculation method;thermoelasticity;temperature field; 井壁稳定;温度分析;计算方法;热弹性;温度场;
Keywords Hole Transport Materials;Anthryl Diamine Derivatives;Diphenyl Diamine Derivatives;Synthesis;Properties; 空穴传输材料;蒽二胺类衍生物;联苯二胺衍生物;合成;性能;
Keywords hole transport material;triarylamine;Ullmann reaction;HOMO energy level;glass transition temperature; 空穴传输材料;三芳胺;乌尔曼反应;HOMO能级;玻璃化转变温度;
Keywords hole trajectory;MWD;closed loop drilling;drilling fluid pulse;drilling theory;mathematical model.; 井眼轨迹;随钻测量;闭环钻井;钻井液脉冲;钻井理论;数学模型;
Keywords hole stability;drilling fluid density;sloughing pressure;fracture pressure;in-situ stress;T453 Well; 井眼稳定;钻井液密度;坍塌压力;破裂压力;地应力;T453井;
Keywords Hole top and bottom hole;Double detonating tube;Millisecond blasting;Blast hole bulling;Detonating theory; 孔口孔底;双导爆管;微差爆破;炮孔装填与排段;起爆理论;
Keywords Hole placing blast;Wider holespacing;Blasting block;Firing network parameter; 排孔爆破;宽孔距;爆破块度;孔网参数;
Keywords: GPRS; GPS; GIS; Protocol; Design?? 关键词：通用分组无线业务；全球定位系统；地理信息系统；协议；设计??
Make bulk changes to keywords, ads, and ad groups. 批量更改关键字、广告和广告组。