粒子冲击钻井发展现状及技术关键  

CURRENT SITUATION AND PROSPECT OF PARTICLE IMPACT DRILLING TECHNOLOGY

作　　者：徐依吉[1] 赵红香[2] 孙伟良[2] 钱红彬[3] 王明明[4] 

机构地区：[1]中国石油大学石油工程学院·华东 [2]胜利油田钻井工程技术公司 [3]江苏油田井下作业 [4]胜利油田黄河钻井四公司

出　　处：《钻采工艺》2010年第5期35-38,137,共4页Drilling & Production Technology

摘　　要：文章介绍粒子冲击钻井发展现状及工艺流程,在常规钻井机械水力联合破岩的基础上,在钻井液中增加一定质量的钢粒子。利用粒子的冲击破岩作用,提高深井超深井硬地层的钻井速度。利用有限元软件建立物理模型,模拟粒子破岩过程,研究粒子冲击钻井破岩规律;介绍粒子冲击钻井研究内容:粒子对循环管线寿命影响实验研究;根据破岩规律,设计PID钻头结构。为解决深井和超深井硬地层钻井速度慢、钻井周期长、钻井成本高等难题提供新思路。This paper mainly introduced the process of the particle impact drilling and studied the laws of rock breaking.On the base of conventional mechanical hydraulic rock breaking,the technology made use of drilling fluid to carry rigid spherical particles through a specially designed drill bit,particles impact drilling could improve the drilling speed of the hard formation.Using the finite element software established the physical model and simulated the rock breaking process.The rock breaking laws of particles impact drilling were studied and the research orientation was introduced.Based on the rock breaking laws,PID bit was designed.It afforded a new method to resolve the problems of lower drilling speed,higher drilling costs and longer cycle in the process of drilling the hard formation.

关 键 词：硬地层 粒子冲击钻井 破岩 

分 类 号：TE242[石油与天然气工程—油气井工程]