1.
The contact between drillstring and bore hole wall in the process of horizontal drilling is of large area and geometrically nonlinear.
长中半径水平井钻柱与井壁的接触问题是大面积接触的几何非线性问题。
2.
Nonlineaer Study on Dynamic Action of Integrated Drill String-Well Rock System;
钻柱结构与井壁岩石互作用下系统耦合非线性动力学研究
3.
Study on Nonlinear Dynamics Action of Integrated Bit-Rock-Drillstring-Well System;
钻头—岩石—钻柱—井壁互作用下系统耦合非线性动力学研究
4.
As a typical example, the contact-impact problem between the drillstring and the bore hole wall in oil field has been calculated and analysed.
文中针对石油工程中钻柱这类典型的细长杆与圆形井壁的接触碰撞问题进行了求解。
5.
Hole Stability and Drilling Fluid Optimization Technical Research for BZ13-1 Oilfield
渤中13-1油田井壁稳定与钻井液优化技术研究
6.
Structure analysis and design optimization of drilling shaft lining bottom in super-deep alluvium
特厚表土层钻井井壁底结构分析与设计优化
7.
electrically driven rotary sidewall sampler
电动钻进式井壁取心器
8.
bottom supporting drilling platform
定柱沉垫式钻井平台
9.
660m depthdrilling shaft lining structure design and analysis of main shaft Ban Ji mine
板集主井660m深钻井井壁结构设计分析
10.
Nonlinear Mechanic Analysis and Application of Drillstring for Stairs Horizontal Well;
阶梯水平井钻柱非线性力学分析与轨道设计
11.
Evaluation and Forecast of Lengthwise Vibration Fatigue Intensity of Deep Well Drillstring;
深井钻柱纵向振动疲劳强度评估与预测
12.
THEORETICAL CALCULATION AND ANSYS ANALYSIS OF LONGITUDINAL VIBRATION FOR THE DRILLING STRING OF AN EXTENDED REACH WELL
大位移井钻柱纵向振动理论计算与ANSYS分析
13.
Design of Drillbore Column Visualized Query System
钻井柱状图可视化查询系统的设计与实现
14.
Study on Dynamic Characteristics and Failure Mechanism of Drill String in Air Drilling
气体钻井钻柱动力学特性及钻柱失效机理研究
15.
Design Optimization of Drilled Shaft Lining Structure in 1000m Deep Shaft
千米深井钻井法凿井井壁结构设计优化
16.
ANALYSING DYNAMIC CHARACTERISTICS OF DRILLING STRING EDDY OF INSIDE CONTAINING DRILL FLUID
内含钻井液的钻柱涡动动力特性分析
17.
Study on Vertical Structural Stability of a Super-deep Drilled Shaft in Slurry
泥浆中超深钻井井壁竖向稳定性分析
18.
Protection Principle Analysis and Applied Research on Drilling Fluid Using in Water Sensitive-Unconsolidated Formation;
水敏/松散地层钻井液的护壁机理分析与应用研究