摘要
为消除PDC钻头的黏滑振动现象,降低滑动导向钻进摩阻,提高机械钻速,延长PDC钻头的使用寿命,研制了一种新型钻井提速工具——三维振动冲击器。三维振动冲击器结构紧凑,无橡胶件和电子元器件,耐高温高压,工作安全可靠;轴向冲击减小了整个钻柱的摩阻力,增强了PDC钻头吃入硬地层的能力,周向冲击消除了钻进过程中的黏滑现象,有利于钻头均匀切削,在中海油临兴致密气区块5口井的现场试验中,工具的工作寿命超过150 h,较邻井提高机械钻速45%以上,可以与螺杆钻具配合使用。研制的三维振动冲击器改善了定向钻进工具面的控制,有效提高了定向能力和定向钻进速度。
To eliminate the stick-slip vibration ol PDC bit, reduce the friction ol sliding drilling, improve the rate ol penetration and prolong the service life ol PDC bit, a new type ol drilling speed increase tool-3D vibration impactor has been developed. The 3D vibration impactor has compact structure, no rubber parts and electronic com-ponents ,presenting high temperature and high pressure capacity, safety and reliability. The axial impact could re-duce the friction of the drill string, and enhance the PDC bit bite into the hard layer. While the circumferential im-pact eliminates the phenomenon ol stick-slip in the drilling process and lacilitates the unil＇orm cutting ol the PDC bits. In the field test ol the 5 wells in Linqing tight gas block ol CNOOC, the tool structure is reliable and the work-ing lile is more than 150 h, providing over 45% increase in ROP. The tool could be used in conjunction with the PDM. The developed three-dimensional vibration impactor had improved the directional drilling tool surface control, and ellectively improved the directional ability and directional drilling speed.
作者
张林强
赵俊
王鹏
李汉兴
朱磊
Zhang Linqiang Zhao Jun Wang Peng Li Hanxing Zhu Lei(China United Coalbed Methane Co. , Ltd. CNOOC Research Institute)
出处
《石油机械》
2017年第5期61-65,共5页
China Petroleum Machinery
基金
中海石油(中国)有限公司综合科研项目"临兴-神府致密气开发先导试验区钻采关键技术研究"(KY20160117)
"定向钻井提速工具研究"(CX20160312)的部分研究内容
关键词
三维振动
冲击器
钻井提速
PDC钻头
机械钻速
three-dimensional vibration
impactor
drilling speed increase
PDC bit
ROP
