摘要
在钻井作业中,为解决深井、超深井机械钻速慢的难题,设计了一种新型负压脉冲钻井工具。工具内装有高压机械自激交互式水力脉动腔,采用流速为50 m/s的高压泵对该腔进行初步的实验研究,实验结果表明,机械自激交互式脉动腔短节能够将稳定来流转换成脉动流体,形成初次振荡效果。为方便现场应用,提出了新型负压脉冲钻井工具在常规钻井中的使用方案。这种新型负压脉冲钻井工具有利于破碎井底岩石。
During drilling operation of deep or super deep well in order to solve the problem of slow drilling speed, a new type of negative pressure pulsation drilling tool is developed. It is a built-in high pressure mechanics with self-excitation hydraulic pulsation chamber. It uses a high pump of 50m/s flow rate. Test shows a sub in chamber can stabilize to change the coming flow into pulsation flow to form initiate pulsation. In order to convenience site application, an operation program is put forward for conventional drilling. It is good at breaking down hole rocks.
出处
《石油矿场机械》
2007年第6期39-41,共3页
Oil Field Equipment
关键词
负压
脉冲
钻井工具
研究
negative pressure
pulsation, drilling tool
development
