Research on no Dig Directional Drilling Pipeline Laying Technique——The reseach on directional drilling tool工程科学：英文版论文
【题名】：Research on no Dig Directional Drilling Pipeline Laying Technique——The reseach on directional drilling tool工程科学：英文版论文(Research on no Dig Directional Drilling Pipeline Laying Technique——The reseach on directional drilling toolGongChengKeXue：YingWenBanLunWen) 【关键词】：非开挖 管道 定向交叉 工程研究 【keywords】：FeiKaiWa GuanDao DingXiangJiaoCha GongChengYanJiu 【作者】：XuLi ZhangGuozheng MaWeiguo TangShizhong LiYiliang GeXindong GuZhen      【来源】： 知识词典 【期刊名称】：工程科学：英文版(GongChengKeXue：YingWenBan) 【国际标准刊号】：1672-4178        【国内统一刊号】：11-4985/N 【作者单位】：ChinaPetroleumPipelineEngineeringCo.,CNPC,HebelLangfang065000(ChinaPetroleumPipelineEngineeringCo.,CNPC,HebelLangfang065000) 【分类号】：TU990.3      【页码】：-75-82      【出版年】：2004.4 【下载地址】：下载pdf全文         The directional crossing drilling works were applied in the West-East gas pipeline(WEGTP) project.The main researehs on the directional crossing drilling include:(1)to analyze the forces applied on the drilling tool and the failure mechanism in onler to obtain the proper configuration of the drilling tool and solve the failure prevention;(2)to analyze the existing mud,to propose a viable mud composition;(3)in respect of mud mixing and environmental protection,to develop a quick evcloning mud hydration and recycling device;(4)to develop a interface picture software for direction controlling measured parameter to improve directional drilling accuracy;(5)tp develop an electronic search software incorporating large amounl of construction specifications and mud compositions,used for construction.In this paper the first one of the above mentioned points is introduced,including existing problems with directional drilling,optimization of the drilling tool,analysis of drill collar fracture failure,research on stress scattering structure of drilling tool thread and thread sticking prevention measures.etc.
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