The idea that the casing shoe resistance and the crushing strength of the LCM must be considered when design the density of the drilling fluids is presented. It holds that the surface pressure should be junior to the crushing strength of LCM, in order to prevent the formed bridge plug from crushing.
提出设计井内堵漏钻井液密度时，必须同时考虑套鞋处破漏压力和桥接材料的抗压强度对井内压力的限制；认为提高压力敏感性裂缝地层承压能力的堵漏作业时，井口压力应不超过桥接材料的抗压强度，以保证裂缝内已形成的堵塞隔墙不被破坏。
BP is also building a pair of cofferdams that could sit over the leaks like inverted funnels, with piping allowing the oil up to a drilling ship at the surface.
BP公司也正建造两个能像倒转的漏斗般盖住漏油处的潜水箱，从而通过管道将漏油抽取进海面的钻井船内。
By integrating drilling and well logging data, the Jurassic system was divided into 6 Ⅲ sequences and 17 systematical domains. The sequence boundary was identified by using the terminal correlation of seismic reflection, regional lithologic interface, changes of paleontologic distributive characters, number of logging curve and its style discontinuity. The systematical domain was divided based on the recognition of the first flooded surface and maximum flooded surface and in combination with analysis of parasequence superimposed style.
综合钻井、地震等资料，将滴南凸起侏罗系划分为6个三级层序和17个体系域，应用地震反射终止关系、区域性的岩性界面、古生物分布特征的变化、测井曲线数值和形态突变等进行了层序边界的识别；在依据岩性和测井曲线的变化识别首次湖泛面和最大湖泛面，并结合准层序叠置样式分析的基础上，进行了体系域的划分。
Days and total footage of 28140 m. In the cementing operation, it is first time to adopt three new techniques; surface casing cementing operation without drilling rig, simplex and double seal cementing for long barehole interval and one~ step displac...
在固井作业中，首次使用了无钻机时间固表层作业、长裸眼单级双封固井和防腐液一次替入等三项创新技术，油层套固井采取了十项关键技术，保证了作业质量，提高了作业效率，油层固井质量一次合格率达到100％，质量全优。
The ideal rock sample is the conical surface rock sample that can joint crest of teeth in single row drilling experiment.
在单齿圈破岩试验中，理想的岩样是与牙齿齿顶线相贴合的锥面岩样。
Methods Ten mature Wistar rats were divided into normal control group (5 rats) and adenovirus (E1, E3-Deleted and carried math1 and enhanced green fluorescent protein report gene, Ad-Math1-EGFP) scala vestibuli transfer group (5 rats). Right ears of the Ad-Math1-EGFP transfering group rats were deliveried 5μl Ad-Math1-EGFP (physical tite 2.1×10^11v. p./ml) into cochleas through the way of drilling scala vestibuli of cochlear basal turn. As a control, the normal group received nothing to inner ear. In order to estimate functional condition of vestibule and cochlea, the click-evoked potentials on the surface of the cervical dura mater, auditory brain stem response and swimming time were recorded in all rats at 7 days after treatment, and then histologic and morphologic observation were carried out after animals were sacrificed. Results All animals'morphologic observation showed that inner ear hair cells were normal after transfer.
将10只成年Wistar大鼠分为正常对照组和缺失E1、E3基因片段且构建有Math1基因和绿色荧光蛋白报告基因的复制缺陷型腺病毒(adenovirus-Math1-enhanced green fluorescence protein，Ad-Math1-EGFP)前庭阶导入组，每组5只，实验组大鼠在右耳通过耳蜗底回前庭阶打孔的方法导入物理滴度为2.1×10^11v.p/ml的上述腺病毒5μl，对照组大鼠不做任何处理。7天后对动物进行颈髓硬膜外短声诱发电位(click-evoked potentials on the surface of the cervical dura mater，CDM-CEP)、听性脑干反应阈值检测和游泳试验，评价前庭和耳蜗功能，然后将动物处死进行组织形态学观察。
The results of calculation and real drilling data are matched well by using the methods of point controlling-surface and surface-directing point.
运用以点带面和以面促点的研究方法，对研究成果与实际钻井开展匹配分析。
In the experiments, the nozzle, produced by laser drilling, is employed to acquire high drilling reproducibility, low hole taper and laser dril ling with cleaning surface.
并利用激光打孔后的孔作为喷嘴，获得了重复率高、倾斜度小和工件表面干净的激光打孔。
L Drilling spindle is equipped with a high-pressure water equipment, water pressure 2.0Mpa, traffic 24.3L/min, cooling center drill center drill extend life, improve the center hole surface roughness.
l 采用100L/min，40m大扬程水泵冷却铣刀，冲刷各部铁屑，机床不积屑。
Engineering drilling rig dedicated filter dust collection box We have a sound process such as: machining, stamping, surface treatment, filter assembly, rubber products, such as workshops, technical, quality inspection and other quality management department and advanced production lines, rely on rich technical force and high-quality skilled workers, with Germany, the United States HV, South Korea AK company imports high-quality filter paper and other filters, to sophisticated technology, advanced equipment, perfect detection means, a sound management system to meet user demand for a variety of filters.
、工程钻机集尘箱专用滤芯本厂拥有完善的工艺流程如：机加工、冲压、表面处理、过滤器组装、橡胶制品等车间，技术、质检等质量管理部门及先进的生产流水线，依靠雄厚的技术力量和高素质的技术工人，凭借德国、美国H.V、南韩AK公司优质滤纸及其它进口滤材，以精湛的工艺、先进的设备、完善的检测手段、健全的管理体系满足用户对各种过滤器的需求。
RESULTS: The dentine surface characteristics in the contrast group showed anomaly dentine structure with some detritus and residum. The dentinal tubules were not completely exposed. The characteristics of the drilling group appeared rougher with irregular particles scattered throughout the surface. The well-defined smear layer was detected. The dentine tubule orifices were plugged. The cavity surface of the Carisolv group showed that the smear layer was consistently removed and the dentinal tubules of carious area were sufficient exposed.
结果：对照组牙本质崩解破坏，可见碎屑和残渣，牙本质小管形态不完整；机械法去龋组牙本质表面有不规则的颗粒和碎片，有玷污层形成，牙本质小管口堵塞；Carisolv去龋组未见碎屑和残渣以及玷污层，牙本质小管清楚可见。
The drilling shoe is the key technology of surface casing drilling.
套管钻井技术是一项世界范围内钻井领域降低钻井成本的革命性新技术，钻鞋是表层套管钻井最核心的技术。
Results showed that Ti accumulated on the diamond's surface, and also formed compound with C. Aiming for verifying the performance of brazed diamond tool, single diamond grit abrasion test and tool drilling test were conducted.
为验证钎焊工具的性能，分别进行单颗磨粒磨损试验和套料钻钻孔试验，单颗磨粒磨损试验中，单颗磨粒在重负荷工作条件下，仍有正常磨耗的过程。
Guangdong Guangzhou Petroleum Machinery Factory established in 1958, began to develop, design and manufacture Surface Mounted Control System for BOP Stacks, High Pressure Test Unit and Specialized spare parts for oil and natural gas well-drilling and exploration industy.
广东省广州石油机械厂注册成立于1958年，80年代初开始独立设计、制造和销售地面防喷器控制装置、气动试压台、电动液控节流管汇控制台等石油机械和备件，产品销往全国各大油田，业内享有盛誉，还出口到世界多个国家和地区。
The model shows reasonable result in the phenomena caused at the initial stage of drilling on the inclined surface.
分析模型合理地解析了斜面钻孔初期的受力现象。
In one embodiment, the sensors are mounted on a surface of the directional drilling hinged pad that comes in contact with the borehole wall.
在一个实施例中，传感器(31)安装在定向钻井铰接垫(40)的表面上，所述表面与井眼壁接触。
It is working platforms, installed on the side of the table at both ends and guide rails parallel with the table on the edge, hanging by drilling-iron and locking screw installed on the rails; Rails with dovetail, drilling in the rails-level mobile; drilling board-including wandering, wandering board with transmission mechanism, slip surface at the end of a board with the rails of the dovetail dovetail compatible slot, mechanical slip on stage with the main supporting frame, the main support shelf with vertical sliding platform equipped with vertical sliding MOUNTING subsidiary, the subsidiary machinery slip through the shelves support Taiwan with the horizontal direction of the drilling power head.
它由工作台、安装在工作台两端及一侧的导轨，导轨与工作台的边缘平行，钻架通过吊铁和锁紧螺钉安装在导轨上；导轨上设有燕尾，钻架可在导轨上水平移动；钻架包括溜板、溜板上装有传动机构，溜板底面上设有与导轨上的燕尾相配合的燕尾槽，机械滑台上装有主支撑架，主支撑架上装有纵向机械滑台及控制系统，控制系统连接一控制活动按钮站，纵向机械滑台上装有附属支撑架，附属支撑架上通过机械滑台装有水平方向的钻削动力头。
Slim hole sidetracking horizontal well can fully utilize old well and surface equipment. it can be used in casing failure well for producing remaining oil to improve recovery, reduce drilling cost. it can improve oil field whole economic effect and be applied successfully in JiDong oil field.
冀东油田钻采工艺研究院，河北唐山 063004）摘要：小井眼侧钻水平井由于能最大限度地利用老井和地面设施，用于套管损坏井开采剩余油，提高油田采收率，降低钻井成本，提高油田整体经济效益等优势，在冀东油田得到了成功应用。
Through comparison analysis on the induction resistivity curves of two logging methods mentioned above, this paper concludes that there is little difference inside the formation, but at the boundary and the nearby area the former resistivity is larger than the latter due to the significant influence by boundary surface load, the infiltrated depth of drilling fluid, and the angle between borehole and formation.
在比较了水平井中随钻测井和电缆测井感应电阻率曲线之间的区别后，得出以下结论：两者在储层内部相差较小；在界面处及其附近的响应特征受地层界面表面电荷、钻井液侵入深度大小及井眼与地层夹角大小的影响较大。
For the microtremor survey method, first, microlremors are observed simultaneously by a number of seismometers deployed in an area on the ground surface, then, phase velocity of surface wave is calculated from the observed microtremors using stationary stochastic process theory, the subsurface shear wave velocity structure is estimated by phase velocity inversion, finally, the interface depth of underground rock changes can be acquired combining with a small amount of drilling data.
微动勘探方法是通过放置在工作区内的数台拾震仪，按照某种阵列同步地记录天然场微动信号，然后以平稳随机过程理论为依据，从微动信号中提取面波的频散曲线，通过对频散曲线的反演得到地下横波的速度结构，最后结合少量勘探钻孔资料得出地下岩性变化的界面深度。