单粒子冲击破岩实验与数值模拟.pdf

文档介绍：第卷第期石油学报
33 6
年月
2012 11 ACTA PETROLEI SINICA Nov. 2012
文章编号
:0253-2697(2012)06-1059-05
单粒子冲击破岩实验与数值模拟
况雨春1 朱志镨1 蒋海军2 伍开松1 王勤1
西南石油大学机电工程学院四川成都中国石化石油工程技术研究院北京
(1. 610500; 2. 100101)
摘要:粒子冲击破岩可提高深井、超深井硬地层的钻井速度。通过破岩实验与数值模拟相结合的方法,以冲击破岩的粒子直径、冲
击速度等与岩石破碎体积和粒子最大侵彻深度(岩石破碎坑最大深度)之间的内在规律研究为目的,进行了单粒子冲击破岩室内实
验,分析了破碎坑模式。同时,利用有限元软件建立了粒子冲击破岩的物理模型,并对粒子冲击破岩的过程进行了数值模拟。模拟
结果与室内实验数据的对比验证了模型选取的正确性并得到了粒子冲击破岩的最佳直径和初速度值的范围
, H-J-C , 。
关键词:粒子冲击钻井;冲击动力学;室内实验;数值模拟;破岩机理
中图分类号文献标识码
:TE242 :A
The experimental study and numerical simulation of single-particle impacting rock
KUANG Yuchun1 ZHU Zhipu1 JIANG Haijun2 WU Kaisong1 WANG Qin1
( of Mechatronic Engineering,Southwest Petroleum University,Chengdu610500,China;
Research Institute of Petroleum Engineering,Beijing100101,China)
Abstract:The drilling speed of deep wells in hard formations could be improved by the particle impact drilling single
particle impacting rock test was made to investigate how the diameter and impacting velocity of particles influence the breaking rock
volume and maximum depth of analyzed different patterns of crushed craters in experiments associated with numerical
simulation,and developed a physical model of particle impacting rock using the finite element analysis(FEA) addition,
we numerically simulated the process of parti