shaft tunneling

Flow experiment of circulative micro-foam drilling fluid in well bore under HTHP conditions;

井筒中高温高压可循环微泡沫钻井液流动实验

The dynamics simulation of rotating rod string in well bore;

井筒内旋转抽油杆柱动力学仿真

Analysis result of high productivity gas wells in Luojiazhai shows temperature effect of well bore as the key factor affecting well head pressure.

罗家寨高产气井测试分析结果认为井筒的温度效应是影响井口压力的关键因素。

Development and application of multi-function process tubing string used for reducing liquid level in wellbore;

多功能井筒降液面工艺管柱研制与应用

Technology of blending diluting oil in ultra-deep wellbore of Tahe Oilfield;

塔河油田超深井井筒掺稀降粘技术研究

Mathematical Model of Wellbore Hot Fluid Circulation and Its Analytical Solution;

井筒热流体循环的数学模型及其解析解

Safety assessment and breaking prediction system of mine shaft;

井筒安全评价与破裂预测系统

Surface protection technology applied to improve service time of hoist guide in mine shaft;

用表面防护技术提高井筒提升罐道的使用寿命

Analysis on uneven side pressure affected to mine shaft stressed;

不均匀侧压力对井筒受力的影响分析

Design and Construction of Falling Airshaft Repairing;

跨塌风井井筒修复设计与施工

Chemical injection of re-destroyed shaft in Xinglongzhuang Coal Mine;

煤矿井筒重复破坏的化学注浆治理

The acoustic theory and borehole acoustic field distribution study and it s applied prospects;

井筒声场研究回顾与展望

Prediction of borehole hydrate in gas well;

气井井筒水合物预测研究

A new way to predict borehole flowing temperature distribution;

预测井筒流动温度分布的新方法