水平井段岩屑床清除工具的设计与实验研究  

Design and Experimental Study of Tool to Remove Cuttings Bed along the Horizontal Well

作　　者：任威严 崔骢 戴永鹏 齐志平[1] 闫兆金 胡维[1] 宋光宁[1] 

机构地区：[1]重庆科技学院石油工程系

出　　处：《内蒙古石油化工》2014年第3期126-128,共3页Inner Mongolia Petrochemical Industry

基　　金：重庆市大学生创新训练计划(编号201211551007);重庆科技学院大学生“优秀创新人才培养资助计划”联合资助

摘　　要：水平井中岩屑床的存在将导致井下复杂事故,影响机械钻速.基于增加水平井岩屑床清除器周围流场湍流强度的原理,设计出了一种水平井段岩屑床清除工具,该工具采用岩屑床清除工具和液体加速器交互结合的方式,通过加速器加速液体流速来增加岩屑床的清除效果.室内实验结果表明,通过水平井段岩屑床清除工具的组合配置,可以改变岩屑床清除工具周围钻井液流场的紊流速度和强度,并将破坏后的岩屑携带出水平井段,可有效地减少井下复杂事故的发生.In the horizontal wells,cuttings bed occurs normally.And it always causes a lot of well hole problems,and effect the ROP.Based on the rationale of increasing the intensity of turbulence in the flow field around the tools,the paper design a new tool to remove cuttings bed by reset the clean-up tools and fluid accelerator to accelerate cuttings effectively.The results show that this kind of new tool can change the velocity and acceleration of the turbulent flow,which make the cuttings broken and to be transported out of the hole efficiently,and reduce the hole complex accidents.

关 键 词：水平井 岩屑床 井眼净化 清除工具 

分 类 号：TE243+.1[石油与天然气工程—油气井工程]