Technology Breakthrough and Field Application of Domestically Produced Automatic Vertical Drilling System
Automatic vertical drilling system,with the technical advantages of active anti-deflection,avoiding WOB limit and improving the quality of the wellbore,is an intelligent closed-loop drilling tool integrating machinery,electricity and hydraulics,and has become one of the core equipment for anti-deflection and ROP opti-mization in easily inclined well sections such as high steep structures.Since the successful development of the three-pad push-the-bit automatic vertical drilling system in 2010,Xibu Drilling Engineering Company Limited has made breakthroughs in control theory and system structure design after many test and applications,but not realized large-scale industrial application for its short tool life,inaccurate deviation measurement of the near-bit wellbore and unstable quality.After two years of system analysis and field tests,structural improvement and control pro-gram optimization have been carried out and the working life and quality stability of the tool greatly improved,the tool life is more than 150 h in the field application of Tarim Oilfield,Xinjiang Oilfield,Qinghai Oilfield,etc.,which provides technical value for the mature application and promotion of the domestic automatic vertical drilling system.
vertical drilling systemsignal transmissionhigh steep structuredownhole toolsanti-deviation and ROP optimization
NETL
NSTL
万方数据
维普
