Discussion on increasing slim hole drilling speed;
提高小井眼钻井速度研究
corrosion and protection in drilling;
钻井过程中存在的腐蚀与防腐措施
The mud logging measures and show zone distinguishing under the drilling condition of nitrogen packed-in drilling fluid;
充氮气钻井条件下的录井对策及显示层识别
The multi-branch well drilling technical overview and the latest progress;
多分支井钻井技术综述与最新进展
Oil and gas well drilling operation is taken as an example to analyze the feasibility of applying Activity-Based Cost to the petroleum and natural gas industry in China, probes into the cost driver of drilling cost of influencing the well drilling operation of oil-gas.
以钻井作业为例,对我国石油、天然气生产行业运用作业成本法的可行性进行了分析,探讨了影响油气钻井作业成本的成本动因。
In CBM well drilling construction,oil drilling techniques are basically adopted.
在煤层气钻井施工中,基本上采用石油钻井工艺。
By analying the cost and safety of drilling wells,summing up the experience,in order to apply the XJ350I workover rig widely in these re- gions.
陆良、保山两气田气层埋藏浅,使用钻机钻井成本居高不下,为了降低钻井成本,从2001年开始在两气田使用 XJ350Ⅰ型修井机钻井,通过对钻井中的成本及安全性等方面的分析、总结,为 XJ350Ⅰ型修井机在钻井中能更好地应用提供依据。
BP model in artificial nerve net model is adopted to predict stuck operating mode in drilling well and artificial nerve net software in predicting system is developed in the paper.
采用人工神经网络模型中BP模型对现场的钻井工况进行卡钻预测 ,并开发了人工神经网络实时卡钻预测系统软件。
In view of difficulties of strata division in the no rock-core drilling wells,delamination features of rock stratum units are identified based on section index characters of Carboniferous and Permian strata in Beijing.
针对无岩芯钻井地层时代划分的困难,文章通过对北京石炭系和二叠系层型剖面标志特征的分析,识别了岩石地层单位的分层标志特征,论述了钻井岩屑地质编录的要求和地层钻探特征,建立了太原组、山西组和石盒子组地球物理测井的物性标志特征,阐明通过岩屑地质编录结合物探测井资料能够较好地对钻井进行地层时代划分。
3 coal bed is 450m to 475m,the well structure being second section.
文章总结了14项钻井注意事项,有针对性,可推广。
Applying finite element method,the dynamic characteristics of drill string with cone bit in straight hole were simulated,and the whirl,deformation and the dynamic stress in air drilling were compared with the ones in drilling fluid drilling.
应用有限元方法,仿真了空气钻井时斜直井眼中带牙轮钻头钻柱的动力学特性,比较了空气钻井和钻井液钻井条件下钻柱的涡动、变形以及动态应力状况,探讨了空气钻井钻柱失效的动力学机理。