The driller adopts the percussion and reverse circulation drilling pattern, with the higher drilling efficiency and wider formation suitability.
钻机采用了冲击反循环方式，钻进效率高，适应地层面广。
Such a structural pattern is relatively close to the actual situation of drilling, thus providing a new basis for the next exploration deployment.
这一构造模式较为接近钻井实际情况，可对下一步的勘探部署提供新的参考。
The bottom hole pattern of a well is the aggregation of the pits on the bottom rock cut by the bit teeth in the course of drilling.
井底模式就是钻头在钻凿岩石的过程中，钻头牙齿在井底岩石上打出凹坑的集合。
With some well drilling engineering in Changqin Oilfield as the background, this paper introduces a pattern identification method for signal demodulation with mud pulse testing slope sensor.
以长庆油田某钻井工程为背景，介绍了泥浆随钻测斜仪信号解调的模式识别方法。
Analysis of the side-wall pattern shows that the side-cutting process of the roller bit is related to not only the teeth surface design but also the rock property and the drilling parameters.
井壁模式分析说明，牙轮钻头的侧向切削过程不仅与齿面结构有关，而且与岩石性质、钻井参数有关。
According to the character of drilling in exploration engineering, we have manufactured a new pattern diamond bit.
根据勘探工程钻进的特点，研制开发了一种新型的金刚石钻头。
Calculation results show that they accurately reveal the distribution pattern of pressure in wellbore during under-balanced drilling operation.
计算结果表明，该套公式较为精确地模拟了欠平衡钻井过程中井眼压力分布的规律。
Magnesium ribbon anodes are installed in radial pattern beneath the tank bottom by directional drilling and then connected electrically with the bottom.
它运用定向顶管施工方法把镁带牺牲阳极呈辐射状水平地直接埋设在罐底下，然后与罐底板连通。
This article is concerned with the study on the pump pressure distribution against drilling-time and the load pattern of slush pumps.
本文论述了钻井泵载荷谱的编制方法、泵压对钻时的分布规律及载荷谱的应用。
This article is concerned with the study on the pump pressure distribution against drilling-time and the load pattern of slush pumps.
本文论述了钻井泵载荷谱的编制方法、泵压对钻时的分布规律及载荷谱的应用。
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