1.
physical-mechanical properties and drillability of rocks
岩石物理力学性质与可钻性
2.
Interaction Model between Formation and Bit during the Elliptic Distribution of Rock Drillability
岩石可钻性呈椭球型分布时地层与钻头相互作用模型
3.
Experimental Studies of Rock Drillability and Rock Mechanics of Deep Well-bore
深部井眼岩石可钻性与岩石力学特性实验研究
4.
Experimental Research on Affecting Factors and Classification of Frozen Soil Drillability;
冻土可钻性影响因素及其分级的试验研究
5.
The Neural Networks Method Model May Study Application in Nature Intensively in Compact Sandstone;
基于神经网络方法在致密砂岩可钻性中的建模
6.
Study on Rock Drillability of the Tamtsag Basin
塔木察格盆地岩石力学参数和可钻性实验研究
7.
Rock drillability investigation for ultra-deep well drilling at thrust structure of Kuqa depression
库车坳陷山前构造超深井岩石可钻性研究
8.
Probe into the Stratum Characteristics and the Drillability of Tabamiao Block in North Ordos
鄂北塔巴庙区块地层特征与可钻性探讨
9.
Prediction and evaluation of systematic reliability of tricone bit
三牙轮钻头系统可靠性的预测与评估
10.
The Research of New Type Drilling Machine Based on Optimization Design of Reliability;
基于可靠性最优化的新型钻机的研究
11.
A study of the multiaxial fatigue test of casing drilling and its reliability
套管钻井多轴疲劳试验与可靠性研究
12.
Discussion On Feasibility of Using Fly-Ash in Tremie Concrete of the Castin--place Pile
钻孔桩水下混凝土使用粉煤灰的可行性探讨
13.
Dynamic and Reliability Research of Drill Stem Considered Clearance between Drill Stem and Formation;
小环空条件下钻柱动力学及可靠性研究
14.
Study on Biodegradability of Drilling Wastewater and Its Treatment Technology;
钻井废水可生化性研究及处理技术探索
15.
The Theoretic Research of Feasibility of Big Track Boring Used in Coal and Gas Burst Predication;
大直径钻孔预测与瓦斯突出可行性的理论研究
16.
Investigation on the Upgrading of Self-Elevating Drilling Platform and Its Feasibility;
自升式钻井平台改造设计方案及可行性研究
17.
FEA of the Leader of the Rotating Drilling Rigs and Probe into the Reliability;
旋挖钻机立柱的有限元分析及可靠性探讨
18.
Wear Characteristic of Twist Drills in Cutting Machinable Ceramics;
可加工陶瓷切削中钻头磨损特性的研究