Drills are primary tools in drilling and play an important role in machine manufacturing industry.
钻头是孔加工的主要刀具，在机械制造业中占重要地位，传统的麻花钻在。。。
Mined in the Chaquicocha Norte deposit. The primary sulfide body beneath the oxide zone needs further drilling on its western margin to delineate limits.
在氧化矿区下面的原生硫化矿体需要在其西部边缘作进一步的钻探已确定其边界所在。
Taking the plate tectonics as leading theories, combining outcrop, seismic techniques, drilling and logging datum, inter-verifing manifold researching methods, The paper has amply researched the region. discussed the coupling relation of basin-mountain and the geodynamics system; analyzed geologic tectonic characteristics of the basin; confirmed superposed alteration in Mesozoic of the basin; recompartmentalized tectonic units of the researching region and the basin; studied the tectonic evolution of the basin since Mesozoic; ascertained four large tectonic layers and five tectonic evolution process stages in different ways of formation and tectonic alteration; established different tectonic stages、compages、models and sedimentary filled processes, based on the organic geochemistry and oil-gas geologic characteristics in middle Cenozoic of the basin, the conclusions have been summarized in the paper, such as:The primary source rock in lower Permian and subordinate source rock in upper Triassic are developed in the region with better quality, and secondary hydrocarbon is possible; The bearing system which is comparted by three large tectonic layers and two unconformity surfaces formed in Palaeozoic、upper Palaeozoic to Triassic and Cenozoic developing in the region, compounded with reservoirs of different lithology is developed in the region, while the property of tectonic fracture reservoir is better; Based on the analyzing petroleum accumulation elements and preserving conditions, the deep depressing belt in the north of Luoyang depression、Shiling-Yiyang folded fault belt in Yiyang depression and wide anticline belt in Yichuan depression are advantageous petroliferous region, Zhaizhen anticline in Luoyang depression and Shimen wide anticline on footwall of overthrust in Yichuan depression are optimum tectonic traps.
本文以板块构造理论为指导思想，采用露头区野外地质与盆地地震、钻井、测井资料密切结合，多种测试方法互检的研究方法，探讨了盆山耦合关系及其所控制的地球动力学系统；分析了研究区域和盆地地质结构构造特征，确定了中生代盆地的叠合改造性质，并重新划分区域构造单元和盆地构造单元，深入研究了洛阳—伊川盆地自中生代以来的构造演化；确定了成盆作用和构造改造作用的四大构造层和五期不同方式、方向的构造演化过程；建立了不同构造阶段的构造组合和样式及与构造相关的沉积充填过程；在此基础上通过多种有机地球化学指标，研究盆地中新生代油气地质特征，认为本区发育下二叠统区域主力烃源岩、上三叠统区域非主力烃源岩，两套烃源岩质量均较好，并具备二次生烃条件；认为本区发育古生界、上古生界—三叠系和新生界三大构造层、两个不整合界面分隔、不同岩性储集层叠置组合和构造裂隙型储集层的复式储集体系，其中构造裂隙型储集层储集性能较好；依据油气成藏条件和保存条件分析，认为洛阳凹陷北部深凹带、宜阳凹陷内石陵—宜阳褶断带以及伊川凹陷伊川宽阔背斜带为较有利含油气区，有利的构造圈闭是洛阳凹陷翟镇背斜和伊川凹陷的石门逆冲断层下盘的宽缓背斜
This paper, based on the fuzzy relevancy theory, relates the practical data, analyzes the efficiency per hour, waiting ratio and working ratio, and concludes that working ratio is the primary factor to DREupm, and then the efficiency per hour and waiting ratio, offering a reference for drilling management.
本文试用灰色系统理论中的灰色关联分析方法，结合实际资料，以小时效率、停待率和纯钻率为子因素进行分析后认为，纯钻率是影响钻探台月效率的首要因素，小时效率次之，停待率最后，从而为钻探生产管理决策提供依据。
Guided by petroleum and natural gas geology, seismic stratigraphy, sequence stratigraphy and reservoir geology and on the basis of drilling data and logging data on hand, seismic data has been fully used and study on seismic stratigraphy and sequence stratigraphy has also been done in this paper so as to carry out sedimentary facies study and depositonal system study of primary target strata in the block.
论文在石油天然气地质学、地震地层学、层序地层学、储层地质学等理论指导下，以现有钻井资料、测井资料为集约条件，在充分利用地震资料的前提下，通过地震地层学研究和层序地层学研究，开展了研究区内主要目的层的沉积相研究和沉积体系研究，对已有钻井的岩心资料，进行了大量的分析化验工作，开展了主要目的层系碎屑岩储层的岩石学特征、储层成岩作用、储层物性及影响因素研究，在此基础上，进行了储层的分类评价和有利储集相带预测的研究工作。
The application of this kind of drilling fluids shows that the permeability restoration rate of Jurassic core rock is 82.3%. The primary recovery of shale is 95.7%, and the secondary recovery is 71.0%.
利用现场井浆，测量侏罗系岩心的渗透率恢复值为82%，页岩的一次回收率为95.7%，二次回收率为71.0%。
A primary discussion range of application of four phase separator used in drilling
钻井用四相分离器应用范围的初步探讨
Based on the principle of HAZOP analysis and in accordance with the characteristic of offshore drilling engineering, HAZOP analysis method of offshore drilling platform is primary studied.
针对海上钻井工程的特点，运用HAZOP分析的基本原理，对海上钻井平台HAZOP分析进行了初步的研究。
Research on influence of overburden primary key stratum movement on surface subsidence with in-situ drilling test
覆岩主关键层运动对地表沉陷影响的钻孔原位测试研究
Distinguishing the primary factors from environmental influential factors affecting logging-while-drilling resistivity is a perquisite to environmental correction.
准确地识别随钻电阻率测井环境影响因素的主次是有针对性地进行环境影响校正的前提。
Application of drilling concrete pile in the basic construction of great bridge's primary-pier
嵌岩灌注桩在大桥主墩基础施工中的应用
Optimal Release Conditions of No-Power Gliding Bomb Primary Analysis on the Disturbances of Drilling to Initial Geostress Field
无动力滑翔弹最优抛射初始条件研究钻孔对初始应力场扰动影响的初步研究
The technology of hole trajectory primary section is the key of drilling in re-entry horizontal wells.
侧？水平井轨迹起始段工艺技术，是侧？水平井？井工艺的关键技术。
Stone, Whether Or Not Roughly Trimmed Or Merely Cut By Sawing Etc., Readymade Garment and underwear, Building materials and supplies, Refractory Bricks, Blocks And Similar Refractory Ceramic Constructional Goods, Except Those Of Siliceous Fossil Meals Or Similar Siliceous Earths, Hydrometers, Thermometers, Pyrometers, Barometers, Hygrometers And Psychrometers Etc.; Parts And Accessories Thereof, Converters, Ladles, Ingot Molds And Casting Machines Used In Metallurgy Or In Metal Foundries, And Parts Thereof, Lathes For Removing Metal, Including Turning Centers, Machine Tools, Other Than Lathes, For Drilling, Boring, Milling, Threading Or Tapping By Removing Metal, Machine Tools For Deburring, Honing Or Otherwise Finishing Metal Or Cermets By Means Of Grinding, Abrasive Or Polishing Products, Nesoi, Machine Tools For Planing, Shaping, Broaching Etc., Gear Cutting, Gear Finishing Etc., And Other Machine Tools Working By Removing Metal Etc., Nesoi, Pig Iron And Spiegeleisen In Pigs, Blocks Or Other Primary Forms, Iron And Steel 0 Z'W {-~!
主要进口商品：非电热工业或实验室用炉及烘箱〔包括焚烧炉〕，金属铸造用型箱；型模底板；阳模；型模等；其它金属、金属陶瓷、玻璃、矿物、橡胶和塑料模具，实验室、化学、农业、运输等用陶瓷器，碱金属、碱土金属；稀土金属、钪及钇；汞，花岗岩、玄武岩、砂岩等建筑用石，成衣及内衣，建筑材料及供应品，耐火砖、块、瓦及类似耐火陶瓷建材制品〔但硅质化石粉或类似硅土制的除外〕，液体比重计、温度计、气压计、湿度计等及其零附件，金属冶炼及铸造用转炉、浇包、锭模及铸造机及其零件，切削金属的车床〔包括车削中心〕，切削金属的钻床、镗床、铣床、攻丝机床〔车床除外〕，其它金属或金属陶瓷的磨削、研磨、抛光等精加工机床，切削金属的刨床、插床、拉床、切齿机及其他机床，生铁及镜铁，锭、块或其他初级形状，钢铁
In 2007, according to the plan of CNPC, gas drilling experiments were carried out extensively in Xujiaweiziensis DaQing. Air drilling, nitrogen drilling and atomization/foam drilling were all applied, and the primary attempt was actualized in the intended interval of Yingchengzuensis. It took out remarkable effect, therefore improved and developed the gas drilling technology. Thus the elementary matching technology of gas (atomization/foam) drilling that is fit for sand shale and vulcanite in Region Xujiaweiziensis of DaQing was formed, which will offer valuable experience for the further application and expansion of gas drilling.
根据中油股份公司的安排部署，2007年气体钻井在大庆徐家围子地区进行了大规模试验，应用了空气、氮气和雾化泡沫钻井工艺，并在营城组目的层进行了气体钻井尝试，取得了显著的效果，使气体钻井技术得到了进一步完善和发展，初步形成了一套适合大庆徐家围子地区深层砂泥岩、火山岩地质特点的气体钻井配套工艺技术，为气体钻井的进一步推广应用积累了宝贵经验。