| 1. | Optimizing drilling parameters of high - located holes and raising gas drainage rate
优化高位钻孔参数提高瓦斯抽放率 |
| 2. | Optimization of neural network vibration drilling parameter based on genetic algorithm
基于遗传算法的神经网络振动钻削参数优化 |
| 3. | Drilling parameters instrument is the important implement to monitor and analyze the drilling process , and to make scientific decision - making about drilling process
钻井参数仪表是钻井工程中监测钻井过程、进行科学分析和科学决策的重要工具。 |
| 4. | The reliable detection of this transition zone depends on the fact that if all drilling parameters remain relatively constant . the following indicators are noted
对这种变化层位的监测，主要取决于所有的钻井参数是否能维持相对稳定的常数，为此对下列显示要引起注意。 |
| 5. | Through the orthogonal experiments these drill parameters influencing drilling efficiency , such as granularity , concentration , number of water grooves and edge thickness , were optimized
试验证明，采用优化参数的套钻可高效地对陶瓷复合构件进行钻孔加工，质量完全满足技术要求。 |
| 6. | The domestic ones left behind hi reliability , accuracy and man - computer interface . aiming at the problem of existing drilling parameters monitoring system , a new monitoring method of drilling parameter is explored
总体上看，国内外钻井参数的测量原理和方法都还有待改进和完善，国内钻井参数仪表在可靠性、精度和人机界面等方面与国外相比又还有一定差距。 |
| 7. | The research mainly includes in cakalating quantitatively the steerable force ' s quantity , direction and tool face ' s direction , as well as the steerable tool ' s working situations and drilling parameters that effect on the steerable properties of steerable tool and well path controlling , which is necessary to follow the geologic target while drilling
利用固体力学的有限元法研究了钻跟踪地质目标的导向钻具组合的力学性能，包括定量计算实施随钻民踪顺目标钻并所需的导向力的大小和方向及导向工具面方向。 |
