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With establishing geological models, this paper numerically simulates the electromagnetic field, in which the receiving winding is vertical and parallel to the bole axis respectively, analyzes the amplitude of induced electrical potential in receiving hole and its variation with geological body, well-to-well distance, and transmitting frequency, and testifies the results with the data sets from three cross-well electromagnetic loggings in Shengli Oil Field.
本文以电磁场理论为基础,假设地下非均匀介质是关于发射器所在的井轴对称,发射源为处于垂直于井轴或平行于井轴放置的通以交流电的多匝线圈,对普通井及套管井井间电磁测井原理及方法、金属套管的几何参数及磁导率的确定方法、金属套管及发射频率等对井间电磁测井影响的规律等进行了系统研究。
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The invention relates to an ESD protector which comprises the first well and the second well inside the semi-conductor liner, while a separating area is between them; the N pour area is inside the second well, to couple the first node; the NLDD area is between the N pour areas, and annularly poured under the NLDD areas; when the voltage of first node is higher than the breakdown voltage, the current discharge path is limited by the NLDD area and annular pour; said breakdown voltage is lower than the breakdown voltage of oxide of logic gate.
本发明提供了ESD保护技术。一种ESD保护器件包括设置在半导体衬底中的第一阱区和第二阱区,并且隔离区位于中间。N 注入区被设置在第二阱区中,并且在第一节点处耦合在一起。NLDD区被设置在N 注入区之间,并且环形注入位于每个NLDD区之下。当第一节点的电压超过击穿电压时,电流放电路径由对应的NLDD区和环形注入所限定。在一个具体实施例中,所述击穿电压小于逻辑门氧化物的击穿电压。
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Firstly, this paper researched the mechanism of tubing string vibration when natural gas flows in horizontal well tubing string. Secondly, established whole tubing string undamped and damped vibration system model according as reasonable assumption data of one horizontal well. Apply finite element analysis software to calculate tubing string natural characters, simple harmonic dynamic behavior of stable gas production and nonlinear dynamic behavior. Finally, this paper carried out the safety varied frequency of gas well and the method of vibration reduction.
本文首先从理论和数值模拟研究了天然气在水平井油管柱内的流动诱发油管柱振动的机理,然后在合理假设的基础上结合某水平井数据建立了全井段油管柱无阻尼和有阻尼振动系统模型,利用有限元软件计算分析了油管柱固有特性、稳产简谐动力学响应和非线性动力学响应,针对油管柱振动规律提出了天然气安全调节频率范围和减振措施。
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On the basis of the analysis of several typical accidents in the operation of well cementing, different factors of cement slurry affecting the operating safety of well cementing are presented, which include the uniformity of formula materials in laboratory and on the spot, the homogeneity of mixed formula, the quality of oil well cement and additional agents, and the formula design of cement slurry.
沈伟,影响固井作业安全的水泥浆因素及其标准化工作对策从分析几个典型的固井作业事故事例出发,指出了影响固井作业安全的各种水泥浆因素,具体包括实验室与现场配方材料的一致性问题、混配均匀性问题、油井水泥及外加剂材质问题及水泥浆配方设计问题。
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But as well as being very funny and being very well performed and actually very well directed. There's a kind of poignancy and a kind of melancholy to the film.
但整个影片引人入胜的情节、两位演员的尽力表演以及导演的成功指导给影片赋予了很高的观赏价值。
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Absolute open flow is a important index of appraising oil/gas well production capacity,and often used in oil/gas well classification、proration and dimensionless parameters in other equations and so on,it denotes oil/gas productions under full openness of well bottom.
无阻流量是评价油气井生产能力的重要指标,也常用于油气井分类、配产和其它公式中参数的无因次化等,它表示井底在完全敞开的情况下油气井的产量。
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From the calculations, it can be found that the van der Waals interactions, the hydrophobic interactions, as well as the H-bonding interactions are crucial for the ligand binding. The 4-phenylamino group can produce strong van der Waals adn hydrophobic interactions with the nonpolar side chains of the residues deep in the binding cleft. The R^1 and R^2 substituents on the bicyclic chromophore can also produce strong van der Waals and hydrophobic interactions with the residues located at the exterior part of the binding pocket. Moreover, the two N atoms of the quinazoline can form H-bonds with EGFR, which will produce significant contribution to biological activities. The calculated nonbonded interactions between anilinoquinazolines and EGFR, as well as the information obtained from the predicted complexes, can interpret the structure-activities of the inhibitors well, which can afford us important information for structure-based drug design.
从模拟结果得到的抑制剂和靶酶之间的相互作用模式表明范德华相互作用、疏水相互作用以及氢键相互作用对抑制剂的活性都有重要的影响,抑制剂的苯胺部分位于活性口袋的底部,能够与受体残基的非极性侧链产生很强的范德华和疏水相互作用,抑制剂双环上的取代基团也能和活性口袋外部的部分残基形成一定的范德华和疏水性相互作用,而抑制剂喹唑啉环上的氮原子能和周围的残基形成较强的氢键相互作用,对抑制剂的活性有较大的影响,计算得到抑制剂和靶酶之间的非键相互作用能以及抑制剂和靶酶之间的相互作用信息能够很好地解释抑制剂活性和结构的关系,为全新抑制剂的设计提供了重要的结构信息。
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All these factors such as sand prevention method、sieve tube style selection、sand controlling result、oil and gas well off-take potential、oil and gas well longevity and cost of production are incident with one another as well as interaction.
油气田采用的防砂方法、筛管类型选择、防砂效果、油气井产能、油气井寿命和生产成本,这些因素既相互关联又相互制约。
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The nature of inner-party democratic supervision is a self-restraining and self-improving system, which is established by the party on behalf of the people"s interest and to the demand that "Running the state well must run the party well firstly and to run the party well, it must be strictly enforced.
党内民主监督是党内民主的基本支柱,是保证党的决策权能否正确使用、党的决策是否正确的必要条件,是党管干部原则得到正确贯彻落实的根本保证,是实现党的基本路线不动摇的重要保证。
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The clinical observation suggested that YAG lasers did well in coagulation and charring of blood vessel;MEO did well in improving the growth of epithelium mucosa in the burned surface,and did well in anti-inflammation and styptic.
通过临床观察,YAG激光凝固、炭化血管效果较好,MBO可促进创面粘膜上皮生长、止痛消炎,二者联合应用,增强了治疗效果,缩短了治疗时间,复发率低,患者痛苦小。
- 相关中文对照歌词
- Vem Provar De Mim
- Ás Vezes Sim, Ás Vezes Não
- Vícios E Virtudes
- Hoje Sou Eu Que Não Mais Te Quero
- Contrastes Da Vida
- Quase Sem Querer
- Ți-Am Promis
- Falando Às Paredes
- Geração Coca-Cola
- Well Well Well
- 推荐网络例句
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But Severus escaped the hands of those that Julianus had sent to murder him and sent a letter to the praetorian guard, giving them the signal either to desert Julianus or to kill him.
赛维鲁总算逃过了尤利阿努斯派来的杀手,并写了一封信给罗马的禁卫军,向他们发出信号,要么抛弃尤利阿努斯,要么干掉他。他们立即服从了。
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This text is in terms of this of " human nature ", it is under the influence of western literature human nature thought to probe into, awakening in human nature of novel works and all sorts of limitations that affectionate The school of Mandarin Duck and butterfly.
本文便是从"人性"这一角度,探讨在西方文学人性思想的影响下,清末民初鸳鸯蝴蝶派的言情、哀情小说作品在人性方面的觉醒与种种局限。
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So I send a team to a mental hospital, was found hanged stria ...... The ancients observed the phenomenon, although unable to explain, I felt that this might be justified.
于是我再派了一个小组到精神病院,发现了上吊纹……古人观察到了现象,虽然没法解释,我觉得这可能有道理。