查询词典 noble gas

An experimental apparatus of the formation of natural gas hydrate formed from ice-water-gas was designed . The preliminary experiments of natural gas hydrate formed from ice-water-gas under ice point were studied.

设计了冰水气生成天然气水合物的实验装置，并对冰水气在冰点以下生成的天然气水合物进行了初步实验，得出了在冰点以下关于天然气水合物的生成条件、生成速率等方面的结论。

According to the real situation of gas-field exploitation, the hydrate generating system is simulated by the actual conditions as much as possible. Taking some gas field as example, with JEFRI sapphire hydrate device, the liquid systems of gas hydrate generating with frothing agent, electrolyte and condensate oil are studied by experiments and compared with the pure water system. The variation of critical conditions to form gas hydrate and its influence on the effects of inhibiter are discussed for the 3 hydrate systems, which provides the basis to prevent hydrate generation in the fields.

针对气田生产的实际情况，文章尽可能接近现场水合物生成体系，以某气田为例，利用JEFRI蓝宝石水合物装置，通过实验分别研究了含泡排剂、含电解质和含凝析油的天然气水合物生成液体体系，并与纯水体系进行对比，探讨了在这3个体系中天然气水合物形成的临界条件的变化以及对抑制剂抑制效果的影响，从而为水合物的现场防治提供了依据。

Gas identity and concentration can be determined by monitoring the ionization voltage and discharge current of the gas. Gas ionization voltages of SWNTs were lower 30 voltages than MWNTs obtained by CVD, and after plasma treatment, the gas ionization characteristics of MWNTs were improved.

与化学气相沉积方法得到的直立式多壁碳纳米管相比较，旋涂法单壁碳纳米管薄膜电极的气体电离阈值电压要低30V左右，等离子处理对改善直立式多壁碳纳米管的气体放电性能有帮助。

According to some examples of gas drilling in Daqing Oilfield, this text analyze of the reasons for deviation of gas drilling from many aspects such as geological factor, borehole diameter expanding, drilling parameter, hole drift angle, circulation medium of drilling, etc. Base on the analytic result and the site example of drilling, tentative diagnosis measures has been given to gas drilling control measures, this result laid a solid foundation for the design and construction of gas drilling.

根据大庆油田气体钻井实例本文从地质因素、井径扩大、钻井参数、井斜角、钻井循环介质等方面分析了气体钻井井斜的原因，基于分析结果并与大庆现场钻井实例相结合，初步给出了气体钻井井控措施，为气体钻井设计和施工提供一定的基础。

With a gradual contraction longitudinal straight inlet port applied on the Multi-Point Injection natural gas engine, the concentration of natural gas and the pressure field in the intake manifold after the injection of natural gas were investigated, then in the following intake process the volocity vector map and mass distribution of natural gas inside the cylinder were also numerically examined.

在此基础上，考察了渐缩形直进气道应用於多点电喷天然气发动时，天然气喷射后进气岐管内的天然气浓度场和压力场，以及随后天然气-空气混合气在气缸内的质理分布和速度分布。

As a result, by merely replacing the gasoline injector with natural gas injector, a large volume of natural gas is injected on the intake valve and then reflected, which makes the fuel concentration and pressure field in the intake manifold after the natural gas injection for the natural gas engine differ greatly from those for gasoline engine.

结果表明，若仅把MPI汽油机的喷油器用天然气喷射阀更换，大量的天然气喷到进气阀后反射，造成天然气发动机进气岐管内的燃料浓度场、压力场与MPI汽油机明显不同；并且进气阀被打开后，先期吸入气缸的天然气在纵向滚流的作用下被挤向进气阀底部下方，与后期吸入气缸的空气形成明显的分层充气构造。

Thus,in combination with neutron,resistivity and density logging,this paper reconstructs feature parameters K1,K2and establishes K1-K2 pattern which can qualitative evaluate gas AOF.Additionally,in the light of different reflection toward gas between neutron and density logging,a relation between test nonresistance outflow and gas-bearing content which varies with different neutron and density logging is built,thus the gas AOF can be quantitative evaluation.

采用中子、电阻率与密度测井相结合，重构指示气层含气性的特征参数K1和K2，放大气层的响应特征，建立根据特征参数定性评价气层无阻流量级别的图版；并根据中子、密度对天然气的反映，建立了基于密度、中子孔隙度差值的含气当量与测试无阻流量的关系式，实现了定量计算致密砂岩气层无阻流量的目的。

The paper commencing with analyses of the basic property of the hydrate, structure and sort, analyzes micro kinetics, formation condition, gas hydrate formation mechanism and influencing factor in high sulfur; also proceed analysis in depth for existent hydrate prediction model; according to gas dissolving, hydrate lattice deformation, synergistic action of inhibitor, carry out analytical study for existent error between normal forecast model and physical condition; introduce key parameter theory to establish and modify prediction model of hydrate formation condition to suit for high sulfur gas reservoir and inhibitor system, analyses different kinds of prevention and cure measures to influence of hydrate; finally, through field application in high sulfur gas reservoir hydrate.

本文从分析水合物的基本性质、结构与分类出发，分析了水合物生成过程中的微观动力学、生成条件、高含硫天然气水合物生成机理以及影响因素；并对现行的水合物预测模型进行了深入剖析，根据气体溶解、水合物晶格变形、抑制剂协同作用等因素对常规预测模型与实际条件之间存在的误差进行了分析研究；通过引入关键参数理论，建立并改进了适合高含硫气藏水合物生成条件预测模型及抑制剂体系的高含硫水合物生成条件预测模型，分析了各种防治措施对水合物的影响；最后通过高含硫气藏水合物实例计算，分析了含硫化氢、二氧化碳组分的天然气与常规气体对水合物生成条件的影响，并对各种水合物防治措施进行了实例计算。

Taking the eastern sag of the Liaohe basin where coal, oil and gas resources coexist and the Wangying borefield of the Fuxin basin where coalbed gas was first discovered, researched and developed in China as examples, we systematically discuss the control of volcanism on the lateral and vertical distribution of brown coal, flame coal and gas coal in the third member of the Paleogene Shahejie Formation and on the gas source conditions of each coal region. Both the methane released in the process of regional plutonic metamorphism and the additional methane generated by contact metamorphism are calculated. The physical properties and storage capacity of the coal beds changed greatly due to the formation of blackcoal and highlymetamorphosed crevice coal from igneous intrusion. The sealing capacity of intrusions with various occurrences such as dikes is highlighted.

以煤、油、气共生的辽河盆地东部凹陷和我国首次在矿井中发现、研究、开发煤层气藏的阜新盆地王营井田为例，系统地阐述了火山活动在古近系沙河街组三段对褐煤、长焰煤和气煤在平面及垂向分布的控制，进而导致各赋煤区气源条件的不同；估算了王营井田在区域深成变质过程释放甲烷气的基础上，接触变质作用所形成的附加甲烷量；指出由于岩浆侵入形成了天然焦和高变质裂隙煤，使煤层物理性质及储集能力发生了大的变化；强调了岩墙等不同产状的岩浆侵入岩体对煤层气的封闭作用。

Taking the eastern sag of the Liaohe basin where coal, oil and gas resources coexist and the Wangying borefield of the Fuxin basin where coalbed gas was first discovered, researched and developed in China as examples, we systematically discuss the control of volcanism on the lateral and vertical distribution of brown coal, flame coal and gas coal in the third member of the Paleogene Shahejie Formation and on the gas source conditions of each coal region. Both the methane released in the process of regional plutonic metamorphism and the additional methane generated by contact metamorphism are calculated. The physical properties and storage capacity of the coal beds changed greatly, due to the formation of blackcoal and highly-metamorphosed crevice coal from igneous intrusion. The sealing capacity of intrusions with various occurrences such as dikes is highlighted.

以煤、油、气共生的辽河盆地东部凹陷和我国首次在矿井中发现、研究、开发煤层气藏的阜新盆地王营井田为例，系统地阐述了火山活动在古近系沙河街组三段对褐煤、长焰煤和气煤在平面及垂向分布的控制，进而导致各赋煤区气源条件的不同；估算了王营井田在区域深成变质过程释放甲烷气的基础上，接触变质作用所形成的附加甲烷量；指出由于岩浆侵入形成了天然焦和高变质裂隙煤，使煤层物理性质及储集能力发生了大的变化；强调了岩墙等不同产状的岩浆侵入岩体对煤层气的封闭作用。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。