油气化探中芳烃油气性的辨识   总被引：2，自引：2，他引：2  

宋继梅  李武  胡斌 《物探与化探》2006,30(1):45-47,54

在分析全国各大油田典型油气的基础上,提出各种油气的三维荧光光谱和固定波长同步荧光光谱特征峰和共性峰。钻井过程常常加入磺化沥青或原油,通过对磺化沥青的三维荧光光谱和固定波长同步荧光光谱特征峰的分析,可以进行干扰因素的识别;原油的加入将抬高整口井钻井岩屑的荧光强度,可以视其为背景而消除。湖相和海相沉积物等含有丰富的多环芳烃,采用恒定能量同步荧光光谱分析效果更佳。此外,处理数据时还要考虑具体的地质情况。  相似文献   

阿克库勒凸起于奇地区YQ3井奥陶系碳酸盐岩油气成藏研究   总被引：3，自引：0，他引：3  

旷理雄  郭建华  黄太柱  肖秋苟 《新疆地质》2006,24(4):418-422

于奇地区是塔河油区外围重要的油气勘探地区．以成藏理论为指导，应用荧光薄片及流体包裹体分析等技术和方法，综合研究分析了于奇地区YQ3井区中下奥陶统鹰山组碳酸盐岩油气成藏条件及成藏主控因素．研究结果表明，YQ3井区鹰山组储层类型为洞穴型、裂缝．孔洞复合型和裂缝型，洞穴、溶蚀孔隙和中小型裂缝普遍发育，但洞穴充填相当严重；区域封盖和直接封盖能力较好，但海西晚期构造运动对本井区油气保存影响较大；至少发生了4次油气注入成藏期。即海西晚期、燕山期、喜山早期和喜山中期，其中最重要的油气注入成藏期为海西晚期和喜山期；油气藏形成主要受到3种因素的控制，即油气源区是控制本井区油气分布和富集的主要因素，盖层等保存条件是控制本井区油气分布和富集的关键因素，有效储集体发育程度是控制本井区油气分布和富集的重要因素．  相似文献   

新化学蒸气发生体系原子荧光光谱法测定粮食样品中痕量镉   总被引：6，自引：6，他引：6  

李刚  刘玉华 《岩矿测试》2006,25(1):27-30

利用Co^2＋对镉的测定具有明显的增敏作用，采用Cd—KBH4-NaIO3-HCl新化学蒸气发生体系原子荧光光谱法测定粮食中痕量镉。在最佳的仪器和试剂条件下，确定了在Cd—KBH4-Co—NaIO3-HCl最有效的测定体系中，Co^2＋的最佳用量为2mg／L。对Cu、Ni、Zn、Mn、Au、Pt、Pd、Sb、Hg和Fe等元素的干扰情况及消除方法进行了研究。比较了高压罐酸分解和灼烧酸分解两种粮食样品的分解方法。方法检出限为0．035μg／L。对小麦、大米、玉米等多种国家一级标准物质进行测定，结果与标准值相符合。方法精密度（RSD，n=12）为4．84％。此方法适用于多种粮食物料中痕量Cd的测定。  相似文献   

AFS-2202双道原子荧光计测定砷锡铋汞中应注意的几个问题     

齐素芬 《岩矿测试》2006,25(2):197-198

介绍了应用AFS-2202双道原子荧光计测定砷、锡、铋、汞的日常工作中经常出现的问题及其解决办法。  相似文献   

应用同步辐射微束X射线荧光光谱法研究单个大气PM2．5颗粒物的源特征   总被引：3，自引：0，他引：3  

李晓林岳伟生  刘江峰万天敏  张桂林李燕  黄宇营何伟 华魏 《岩矿测试》2006,25(3):206-210

将高灵敏度的同步辐射微束x射线荧光光谱分析方法与计算机模式识别技术相结合，用于上海市大气PM2.5，单颗粒物的源识别。分析了污染排放源的PM2.5，单颗粒物，结果表明，来自不同污染排放源的颗粒物具有不同的能谱特征。同时分析了环境空气监测样品PM2.5，单颗粒物，结果表明，在上海市中心区大气PM2.5，的污染源主要以机动车尾气为主，而在吴淞工业区大气PM2.5，的污染源主要以钢铁工业尘和燃煤烟尘为主。  相似文献   

X射线荧光光谱法测定土壤样品中氯的不确定度评定   总被引：11，自引：7，他引：11  

陈爱平王烨  王苏明 《岩矿测试》2006,25(3):270-275

用实例对x射线荧光光谱法测定土壤样品中氯的不确定度进行了评定。测量结果的不确定度由仪器综合稳定性、制样、标准物质、回归工作曲线、重复测量等所引入的不确定度分量组成。在对各个不确定度分量进行量化的基础上，通过合成得到测量结果的标准不确定度，再乘以95％置信概率下的扩展因子2，得到测量结果的扩展不确定度。  相似文献   

应用于原子荧光光谱分析的空心阴极灯灯电流与激发光强度关系的实验   总被引：1，自引：1，他引：1  

黄跃 李可赵志华  王莉坤魏建山 《岩矿测试》2006,25(4):384-386

应用XGY-6080型全自动双通道原子荧光光谱仪，研究了As、Bi、Sb、Hg、Se、Te、Pb、Sn、Ge、Cd和Zn等元素的高效特种空心阴极灯的一些性能特点，分析和讨论了各元素灯主、辅阴极电流与激发光强度之间的关系，为进行原子荧光光谱分析时空心阴极灯供电电流的选择提供一些参考依据。  相似文献   

Merging energy‐based design criteria and reliability‐based methods: exploring a new concept     

Siddhartha Ghosh  Kevin R. Collins 《地震工程与结构动力学》2006,35(13):1677-1698

This paper examines the potential development of a probabilistic design methodology, considering hysteretic energy demand, within the framework of performance‐based seismic design of buildings. This article does not propose specific energy‐based criteria for design guidelines, but explores how such criteria can be treated from a probabilistic design perspective. Uniform hazard spectra for normalized hysteretic energy are constructed to characterize seismic demand at a specific site. These spectra, in combination with an equivalent systems methodology, are used to estimate hysteretic energy demand on real building structures. A design checking equation for a (hypothetical) probabilistic energy‐based performance criterion is developed by accounting for the randomness of the earthquake phenomenon, the uncertainties associated with the equivalent system analysis technique, and with the site soil factor. The developed design checking equation itself is deterministic, and requires no probabilistic analysis for use. The application of the proposed equation is demonstrated by applying it to a trial design of a three‐storey steel moment frame. The design checking equation represents a first step toward the development of a performance‐based seismic design procedure based on energy criterion, and additional works needed to fully implement this are discussed in brief at the end of the paper. Copyright © 2006 John Wiley & Sons, Ltd.  相似文献   

Scattering of elastic wave by a cylindrical shell deeply embeded in saturated soils   总被引：1，自引：0，他引：1  

徐平夏唐代  韩同春 《地震学报(英文版)》2006,19(2):191-198

The compression of soil grain and pore fluid as well as viscid coupling of pore fluid and soil skeleton is considered, the scattering problem of incident plane P1 wave （fast compressional wave） by an infinite cylindrical shell deeply embedded in isotropic saturated soils is studied by adopting the amended Biot model, amplitude equations about potential functions of scattering and refracting fields are obtained, and the effect of dimensionless frequencies and shell thickness on the back-scattering spectra and dynamic stress concentration factors of two types of cylindrical shells with high and low rigidity are numerically computed and analyzed.  相似文献   

Response spectra for differential motion of columns paper II: Out-of-plane response     

M.D. Trifunac  V. Gicev 《Soil Dynamics and Earthquake Engineering》2006,26(12):1149-1160

It is shown that the common response spectrum method for synchronous ground motion can be extended to make it applicable for earthquake response analyses of extended structures experiencing differential out-of-plane ground motion. A relative displacement spectrum for design of first-story columns SDC (T, T_T, ζ, ζ_T, τ, δ) is defined. In addition to the natural period of the out-of-plane response, T, and the corresponding fraction of critical damping, ζ, this spectrum also depends on the fundamental period of torsional vibrations, T_T, and the corresponding fraction of critical damping, ζ_T, on the “travel time,” τ (of the waves in the soil over a distance of about one-half the length of the structure), and on a dimensionless factor δ, describing the relative response of the first floor. The new spectrum, SDC, can be estimated by using the empirical scaling equations for relative displacement spectra, SD, and for peak ground velocity, v_max. For recorded strong-motion acceleration, and for symmetric buildings, the new spectrum can be computed from Duhamel's integrals of two uncoupled equations for dynamics equilibrium describing translation and rotation of a two-degree-of-freedom system. This representation is accurate when the energy of the strong-motion is carried by waves in the ground the wavelengths of which are one order of magnitude or more longer than the characteristic length of the structure.  相似文献