斯伦贝谢Scanner家族新成员—R_t Scanner简介

本文详细介绍了斯伦贝谢公司最近推出来的测井仪器—Scanner家族的三分量感应测井仪R_t Scanner。该仪器可以同时测量纵向和横向电阻率以及地层倾角和方位角的信息。同时还能够得到标准的阵列感应成像测井剖面。在薄层和低阻油层解释以及储层各向异性分析中显示了独到的优势,文中给出了一个油田应用实例,最后介绍了R_t Scanner的仪器规格。     

钻井过程中水合物层化学稳定实验研究

油田试验显示,钻井液中加入Lecithin可稳定北极Cascade地区水合物层。针对这一现象开展了一系列实验研究。通过特制的实验装置,对加入不同含量Lecithin后钻井液Ⅰ、Ⅱ、Ⅲ(或加入部分水)体系中甲烷水合物形成的热力学条件和甲烷水合物的生成速度与数量进行了测定。实验结果表明:Lecithin的加入基本上不影响钻井液中甲烷水合物形成的热力学条件;对于钻井液Ⅰ和钻井液Ⅲ的实验流体体系,Lecithin是很好的甲烷水合物生成促进剂。     

Kinetic Studies on Reactions Between Monomethylhydrazine and Fe^3＋ as Well as N,N-Dimethylhydroxylamine and Fe^3＋ by Measuring Potential of Fe^3＋/Fe^2＋

The kinetic studies on the reactions between monomethyldrazine and Fe^3＋ as well as N,N-dimethyl- hydroxylamine and Fe^3＋ in nitric acid system are performed by measuring open-circuit potential of Fe^3＋/ Fe^2＋. The effect of some factors such as the concentration of MMH or DMHAN, the concentration of nitric acid, ionic strength, temperature and the concentration of Fe^3＋ on the reaction rate is also studied.     

氢氧化钾溶液淋滤托尔盖低质铝矿过程的动力学研究

所述研究为氢氧化钾溶液淋滤托尔盖地区粘土样品的过程，通过实验溶液浓度，温度和反应持续时间对样品中氧化硅转入氢氧化钾溶液百分率（提取率）的影响总结出过程的动力学规律。     

利用X62加工细长齿条的工艺方法

根据X62立式铣床的结构特点,自制了一种盘形铣刀,可利用铣床纵向行程来完成细长齿条的加工任务.     

A Cold Model Aerodynamical Test of Air-Staged Combustion in a Tangential Firing Utility Boiler

The purpose of this paper is to present the flow field in the 300MW tangential firing utility boiler that used the Low NOx Concentric Firing System （LNCFS）. Using the method of cold isothermal simulation ensures the geometric and boundary condition similarity. At the same time the condition of self-modeling is met. The experimental results show that the mixture of primary air and secondary air becomes slower, the average turbulence magnitude the relative diameter of the tangential firing enlarges of the main combustion zone becomes less and when the secondary air deflection angle increases When the velocity pressure ratio of the secondary air to the primary air （p2/p1） enlarges, the mixture of the secondary air and the primary air becomes stronger, the average turbulence magnitude of the main combustion zone increases, and the relative diameter of the tangential firing becomes larger. Because the over fire air （OFA） laid out near the wall has a powerful penetration, the relative diameter of the tangential firing on the section of the OFA is very little, but the average turbulence magnitude is great. When the velocity pressure ratio of the OFA to the primary air POFA/p1 increases, the relative diameter of the tangential firing on the section of the OFA grows little, the average turbulence magnitude becomes larger and the penetration of the OFA becomes more powerful.     

钢带试样位向及拉伸性能的探讨

从碳素结构钢热轧钢带各向异性的事实出发 ,阐述不同试样位向导致同一钢带不同的拉伸性能 ,因而影响钢带合格与否的判定。在全面考虑钢带和焊管标准的基础上 ,提出解决钢带判定的两种方法。同时 ,还对标准中存在的缺点作了说明 ,提出改进意见 ,供标准修订时参考。     

天然气压缩机气阀的动态分析

通过对往复式天然气压缩机气阀进行动态分析,导出了其动力学模型,选用多种弹力取值对气阀运动进行了数值计算,得到了反映气阀弹力与阀片运动之间的关系,揭示了气阀设计与其流通特性和动力学特性之间的规律,讨论了气阀弹力对气阀寿命以及压缩机性能的影响,为气阀的更好设计提供了理论依据.     

环己酮肟液相重排反应机理及动力学研究

研究了环己酮肟重排反应生成己内酰胺的机理及反应动力学方程。在建立用分光光度法测定环己酮肟浓度方法的基础上,实验研究了反应温度为20~45℃范围内的液相重排反应动力学。提出了此反应的化学反应动力学速率方程式: -r肟= k0exp (-E/RT)Ca肟Cb硫酸,其中环己酮肟反应级数a为2,硫酸反应级数b为1,活化能为-E/R = -19.86 kJmol-1, 频率因子k0为1.35×1027。通过实验研究证实了作为催化剂的硫酸参与重排反应的机理,认为重排反应过程中游离SO3不参与反应,仅作为水的吸收剂,此结论对环己酮肟液相重排反应的生产技术改造提供了有力依据,并在生产中得到了应用。     

关于飞行力学的再思考

对多年来国内外有关飞行力学的发展过程、研究范畴、分类，以及问题表述方式等重新进行了一些考察和思考．从学术和实践的观点，对飞行力学的体系结构和问题表述方式等进行了讨论，并提出了个人的一些看法和建议．