在全面分析钻井机械的组成、钻进过程的特点和人的特性的基础上，建立钻机钻进过程人机系统可靠性模型。
Based on an analysis of the composition of drilling rig, characteristics of drilling process, and human features, a reliability model of man-machine control system for drilling process is established.
基于实钻研究，分析空气泡沫钻进技术在地质岩心钻探中应用的技术优势和社会经济意义；
The article analyses the technique superiority and social economic meanings of the air-foam drilling on the basis of the studying to productive experiment.
开展油田钻柱失效分析与预防对提高钻井速度、降低钻井成本及井下安全钻进具有重要意义。
It is very important for improving drilling rate, reducing drilling cost and safety drilling to carry out drill stem failure analysis and prevention.
岩石力学性质和可钻性是分析和评价岩石抵抗破碎和钻进的基本性质，也是合理选择碎岩工具和工艺的基础。
The mechanical property and drillability of rocks are the basic quality available for analyzing and evaluating the anti fracture and drilling resistance of rocks.
对钻头在钻进过程中的受力分析是准确预测钻头轨迹的基础。
The mechanical analysis of the bit in the process of drilling is the bas- is of bit trajectory prediction.
在分析煤层井壁失稳机理的基础上，对影响煤层井壁失稳的因素进行了逐一剖析，提出了一整套煤层安全钻进的技术措施。
Based on the analysis of mechanism of wellbore unstability, a series of drilling technical measures in coal beds are put forward.
本文通过力学分析与数学推导，对已有的三种钻进模型进行了分析推理。
By using strict mechanical analysis and mathematical treatment, three rock-bit interaction models reported in literature are analyzed.
旋转钻进是岩土工程钻探的主要钻进方式，从能量守恒原理出发，对旋转钻进的能量进行分析。
Based on the principle of conversation of energy, the energy for rotary drilling has been analyzed.
其中一种是目前国内外在钻进参数分析中常用的指数形式，另一种是本文首次应用的多项式形式。
The one is index form that has being used in analyzing drilling parameters at home and abroad. The other, a new polynomial of degree four, is given out in the thesis.
本文探讨了结构力学分析方法——非线性有限元性在预测水平井钻进中的工程应用。
This paper discusses the apply in the drilling engineering by the method of nonlinear limited element, which is about the torque of string and direction of bit and while drilling.
旋转钻进是岩上工程钻探的主要钻进方式，从能量守恒原理出发，对旋转钻进的能量进行分析。
Rotary drilling is a dominant way in geotechnical engineering borehole surveying. Based on the principle of conversation of energy, the energy for rotary drilling has been analyzed.
对行星表土钻头钻进效果和主要钻进参数的关系进行了试验分析。
Laboratory tests and analyses were carried out to investigate the relationship between the main drilling parameters and their drilling effects.
通过对空气潜孔锤跟管钻进钻具的受力分析，得到影响潜孔锤跟管钻进速度和跟管深度的因素。
By analysis of enforcement of drilling tools of air downhole hammer's following pipe, the factors affecting the drilling speed and depth of the following pipe are obtained.
前言：在分析钻进时钻头“打滑”原因的基础上，提出了利用弱包镶来解决“打滑”的思路。
Based on the analysis of "bit walk" in drilling, a concept of using weak diamond -holding matrix to get rid of "bit walk" is introduced.
通过156口调整井钻井试验，对比分析了刮刀钻头和牙轮钻头的钻进特性、牙齿磨损特性、井底流场特性及钻井效果。
Through drilling experiment in 156 adjustment Wells, the drilling behaviors, cutter wear, downhole jet flow field and drilling effect of drag bits and roller ones were comparatively analyzed.
旋转钻进是岩上工程钻探的主要钻进方式，从能量守恒原理出发，对旋转钻进的能量进行分析。
Based on the principle of conversation of energy, the energy for rotary drilling has been analyzed.
通过实验测试的方法，对超声钻进行了测试，验证了有限元分析的结果。
Experiments were done to test this ultrasonic tool and verified the FEA results.
为确定合理的钻压值，对岩石的抗钻进强度也作了初步的分析和探讨。
It is shown that the regression equation of experimental data agrees well with the theoretical equation. A preliminary analysis of the rock strength has been made to determine the ration...
经过对比分析，在松软、含水量大的地层中，气动夯管法施工水平冻结孔比钻进法更具有一定的优越性。
Through contrast and analysis, it was found that this method was obvious superior to drilling method in soft, water content big stratum, the air operated tamping pipe law construction level freeze h…
在全面分析钻井机械的组成、钻进过程的特点和人的特性的基础上，建立钻机钻进过程人机系统可靠性模型。
Based on the basic features of dynamic gas emission during boring process, a theoretical model for calculating the dynamic volume of gas emission from bore hole is set up.
结合河南省开洛高速公路非开挖铺设管线工程 ，简要分析了水平孔钻进弯曲机理 ，详细介绍了工程施工技术方法及效果。
The case study of non-excavating directional drilling technique in power engineering is introduced, flow sheet, construction equipment and pipe installation of non-excavating technique are analysed.
以施工实践为基础，结合理论分析，提出了一种在岩土锚固工程施工中广泛应用的新型钻探工艺技术———螺旋冲击回转钻进技术。
Combined with projects, this paper introduced several kinds of anchor drilling technics in side slope anchoring project by anchorage cable and anchor rod.
其次，综合运用“层次分析法”和“模糊综合评价法”对川东北矿区油气钻井的钻前风险、钻进风险和完井风险进行系统评价，得出钻前、钻进和完井阶段的风险等级状况；
Secondly, to conduct a systematic assessment on the risks of the three stages with the integrated AHP and fuzzy evaluation method to obtained their respective degrees of risk status.
其次，综合运用“层次分析法”和“模糊综合评价法”对川东北矿区油气钻井的钻前风险、钻进风险和完井风险进行系统评价，得出钻前、钻进和完井阶段的风险等级状况；
Secondly, to conduct a systematic assessment on the risks of the three stages with the integrated AHP and fuzzy evaluation method to obtained their respective degrees of risk status.
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