东营凹陷油气充注历史的流体包裹体分析

对东营凹陷胜坨和牛庄油田油气包裹体进行了分析,结合其构造发育史、沉积埋藏史、热史和生烃史等的综合研究,探讨了东萱凹陷油气成藏充注过程中油气运移的相态、运移通道及其成藏过程的时间。首次在东营发现的沸腾包裹体说明了胜坨油田呈现“突发式”成藏的可能性和牛庄油田砂岩体油气充注的时间是东营末期至馆陶期,牛庄油田牛２１井区的油气充注时间是东营末期至现今。     

大民屯凹陷油气充注史研究

油气充注历史的研究一直是石油地质学和油藏地球化学的重点和难点,而近年来流体定年技术的兴起为人们解决油气充注期次和时间提供了定量分析手段.利用伊利石K-Ar定年技术和流体包裹体均一温度分别研究了大民屯凹陷油气充注史.前者确定出的主充注期略晚于后者的分析结果.结合生烃史模拟资料认为:伊利石K-Ar定年结果可能更精确,但其样品挑选难度大,且只能用于砂岩油藏成藏史分析.而流体包裹体均一温度可用于碎屑岩和非碎屑岩油藏成藏史的分析.大民屯凹陷下第三系和太古界潜山油藏主充注时期为沙一二—东营早期,其中北部安福屯洼陷成藏期(沙一二期)略早于南部荣胜堡洼陷(东营早期).     

含氮化合物在东营凹陷南斜坡油气运移中的应用

利用含氮化合物研究东营凹陷南斜坡油气运移方向。对南斜坡油田不同部位油藏原油中含氮化合物的丰度、异构体参数的绝对大小与相对变化进行研究,结果表明,东营凹陷南斜坡原油间运移分馏效应明显,表现为处于同一运移路径上的油藏,随着运移距离的加大,原油中含氮化合物的总量（KC）逐渐减少,1,8-DMC/2,4-DMC值增加,原油中苯并[a]咔唑相对苯并[c]咔唑富集,导致苯并咔唑参数[a]/（[a]＋[c]）值升高。根据上述几项含氮化合物指标的研究,认为：乐安油田油气一部分由博兴洼陷经石村断层充注而来,另一部分由牛庄洼陷充注;纯化油田东部的油气由牛庄洼陷自东北方向注入。     

浅海断陷盆地天然气运聚成藏史研究:以渤海海域北部JZ20-A气田为例

基于天然气的来源、运移通道、充注过程、充注期次和成藏史各要素的配置关系综合分析,结合天然气分析测试、地化分析和流体包裹体测试资料对JZ20-A气藏动态成藏过程进行研究.研究结果表明:JZ20-A气田天然气主要来源于辽中凹陷沙四—孔店段烃源岩,构造高部位是油气汇聚优势区域,该气藏天然气垂向运移距离约为3 200 m;长期持续活动的断层和不整合面构成的输导体系,将生成油气呈阶梯式运移至储层有利部位聚集成藏；研究区油气成藏期时间主要为12 Ma至今,为一期持续充注.     

饶阳凹陷古近系储层流体包裹体特征及成藏期确定

以渤海湾盆地饶阳凹陷古近系为例,利用包裹体岩相学和显微测温技术,研究古近系储层流体包裹体特征,并结合源岩热演化生烃史,综合分析研究区古近系油气成藏时间及期次。结果表明:研究区古近系储层有2期烃类包裹体,第Ⅰ期分布于碳酸盐胶结物及石英颗粒内裂纹中,发近黄色荧光,具有高盐度、高密度特征,伴生盐水包裹体均一温度主峰值为90~100℃;第Ⅱ期赋存于长石溶蚀孔缝及穿石英颗粒裂纹中,发近蓝绿色荧光,具有低盐度、低密度特征,伴生盐水包裹体均一温度主峰值为120~140℃;研究区存在古近纪东营期和新近纪馆陶末至明化镇期两期生烃,明化镇期为主要生烃期;饶阳凹陷古近系具有两期成藏过程,东营组沉积后期至抬升初期和馆陶组沉积末期至明化镇组沉积期;受控于源岩热演化生烃史,凹陷中不同地区及层系的油气成藏时期及期次存在明显差异,第一期成藏范围较局限,主要发生于生烃洼陷中心生烃层系中,第二期成藏范围广泛,为主成藏期;上部层系多为一期晚期成藏,下部层系多为两期成藏。     

柴达木盆地西南区油气充注与青藏高原隆升耦合关系的包裹体证据

准确厘定柴达木盆地内含油气储层中烃类充注历史对于全面认识青藏高原隆升构造活动影响盆地内油气的成藏和分布均具有重要意义。本文详尽地调查了柴西南地区新生界主力含油层位的流体包裹体显微测温数据及所对应的烃类充注期次及时间,全面厘清了油气充注期次与高原隆升强活动期之间的耦合关系。研究结果表明,研究区油气藏普遍存在至少2期次的油气充注,通常发生在青藏高原隆升强活动期C、D和E期(中新世以后),几乎所有的油气藏均在强活动E期发生过规模化的油气聚集,说明青藏高原隆升运动末期的构造活动是研究区油气成藏和分布的关键影响因素。由于“多期成藏、晚期富集”的油气成藏特征,早期充注的石油可能改变砂岩储层的天然亲水性,有利于晚期油气的运移和聚集,在一定程度上弥补储层在继续埋藏过程中的物性损失,预示着深层存在油气勘探潜力的可能性。     

平南油田断裂活动与油气成藏期次研究——基于流体包裹体的证据

对平南油田断裂带内包裹体及储层流体包裹体利用显微镜进行了岩相学研究,利用Linkam THMS600冷热台及JY LabRaman-010进行了测温分析,认为:平南断层是一条力学性质复杂的断层,经历过正、负反转过程;平南地区奥陶系和寒武系储层的油气成藏时间主要在明化镇期,且寒武系充注时间相对集中;靠近平南断层的地方油气充注时间要早于远离断层的地方,并且油气充注时期与断层的活动时期相吻合,说明了断层在油气聚集成藏中起到了运移通道的作用。     

哈山地区构造演化与油气充注耦合关系研究

哈山地区构造演化史、油气充注过程及构造演化与油气充注耦合关系认识不清是制约该区油气勘探推进的关键难题。研究在构造地质学理论指导下结合元素分析等方法揭示了哈山地区的构造演化历程,认为该区经历了早二叠世后碰撞拉张伸展期、晚二叠世强烈逆冲推覆期、三叠纪冲断叠加期、侏罗纪-白垩纪振荡隆升期和新生代左旋走滑调整期5个构造演化阶段。利用油包裹体荧光特性、烃类包裹体伴生的盐水包裹体均一温度分析;并结合埋藏史,确定了该区的3期油气充注,并确定其时间分别为距今250 Ma、200 Ma和130 Ma。在此基础上,分析了构造运动与油气充注的耦合关系,明确了多期逆冲推覆构造运动控制了油气的充注成藏过程,指出研究区存在3个构造运动与油气充注的耦合期,为探索研究区油气成藏演化规律和深化油气勘探提供了地质支持。     

利用流体历史分析技术研究渤海海域黄河口凹陷北部陡坡带油气成藏过程

基于流体历史分析技术的成藏过程反演对含油气系统的持续勘探具有重要意义。本文应用包裹体岩相学、均一温度、储层定量荧光等技术和方法,对渤海海域黄河口凹陷北部陡坡带沙河街组储层中的流体包裹体进行了深入研究,在此基础上,剖析了油水界面变迁,再结合生烃史和有机地球化学资料研究了北部陡坡带沙河街组储层的油气成藏史。结果显示,黄河口凹陷北部陡坡带具有2期源自沙河街组烃源岩的油气充注,第Ⅰ期充注时间为7 Ma,表现为褐色低熟的轻-中质单一液相烃类包裹体；第Ⅱ期开始于2Ma,沙河街组烃源岩大量生烃,表现为浅蓝色荧光的中质气液两相烃类包裹体,为主要成藏期。储层定量荧光样品QGF大多体现古油层荧光光谱特征,油藏规模较大,后期由于构造活动油藏泄漏,形成现今3885 m典型的油水界面。黄河口凹陷北部陡坡带的构造活动与烃源岩生排烃史的时间匹配决定了研究区两期充注,后期为主的成藏特点。新构造运动后期,古油藏规模减小,形成了现今油藏格局。     

东营凹陷沙四下亚段-孔店组储层流体包裹体特征及油气充注期次

 东营凹陷深层的沙四下亚段-孔店组是该区油气勘探的接替层系,以沙四下亚段-孔店组储层流体包裹体为研究对象,通过包裹体显微荧光观察和均一化温度测试,结合埋藏史和热史模拟,分析了研究区油气充注特征。研究结果表明,东营凹陷南坡沙四下亚段-孔店组储层经历过1 期油气充注,发生于明化镇组沉积期至现今;而北坡经历过3 期油气充注,分别发生于沙三段沉积期、馆陶组沉积期和明化镇组沉积期至今;南坡沙四下亚段-孔店组油源来自于上覆的沙三下和沙四上亚段烃源岩,北坡比南坡埋深更大,且有沙四下亚段烃源岩的贡献;不同的地质背景、油气来源及生储配置关系,导致东营凹陷南、北坡沙四下亚段-孔店组油气充注期次的显著差异。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Perspherical Approaches for Electrons in Atoms and Charged Excitons in Quantum Wells

Instead of following Fock’s expansion,we solve the Schrodinger equation for some quantum mechanical manybody systems such as electrons in atoms and charged excitons in quantum wells in a similar way in hyperspherical coordinates by expanding the wave functions into orthonormal complete basis sets of the hyperspherical hannonics(HHs)of hyperangles and generalized Laguerre polynomials(GLPs)of the hyperradius.This leads the equation to     

Advances in broadband wireless communications under high-mobility scenarios

Future mobile communication systems aim at providing very high data transmission rates, even in high-mobility scenarios such as high-speed wheel-track trains, maglev trains, highway vehicles, airplanes, guided missiles or spacecraft. A particularly important commercial application is the strong and increasing worldwide demand for high- speed broadband wireless communications （up to 574.8 km/ h test speeds or 380 km/h commercial speeds） in railways, providing data, voice and video services for applications such as onboard entertainment services to passengers, train control, train dispatch, train sensor status handling and sur- veillance. In such high-mobility scenarios, there are a number of communication challenges, including fast hand- over, location updating, high-speed channel modeling, estimation and equalization, anti-Doppler spreading tech- niques, fast power control, and dedicated network architec- ture. Because signal transmission in very high-speed scenarios will inevitably experience serious deterioration, it is imperative to develop key broadband mobile communi- cation techniques for such high-speed vehicles.     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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Scale-based spatial data model for GIS

Being the primary media of geographical information and the elementary objects manipulated, almost all of maps adopt the layer-based model to represent geographic information in the existent GIS. However, it is difficult to extend the map represented in layer-based model. Furthermore, in Web-Based GIS, It is slow to transmit the spatial data for map viewing. In this paper, for solving the questions above, we have proposed a new method for representing the spatial data. That is scale-based model. In this model we represent maps in three levels: scale-view, block, and spatial object, and organize the maps in a set of map layers, named Scale-View, which associates some given scales.Lastly, a prototype Web-Based GIS using the proposed spatial data representation is described briefly.     

英文诗歌中的喻类修辞

为了有助于提高英文爱好者的个人情操、文化素养和学习兴趣,以及专业人员对英语学习和研究进行多途径的探索,本文通过一些精选诗歌的引证和分析,着重论述了喻类修辞法在英文诗歌中的运用其及效果。     

Man Is Unable to Change the Miserable Life——Analysis of the Arrangement of Four Characters in The Glass Menagerie

Tennessee Williams is considered as one of the most important American playwrights since World War II.The Glass Menagerie is his first successful drama,which describes a tragic situation of family and means to say that Man is unable to change the miserable life,no matter whatever means he try,This essay focuses on the analysis of the arrangement of the four main characters:Laura.Amanda,Jim and Tom to reveal the theme.Laura is fragile.Amanda is brave.Jim is vital.Tom is sensible.And all of them develop and try the different means to struggle against life,but fail tragically.With the evidence,the paper comes to conclusion naturally that Man is unable to change the miserable life,and he dooms to fail.     

Characterization of root-nodulating bacteria on Retama raetam in arid Tunisian soils

The aim of this study is to investigate the diversity of Retama raetam root-nodule bacteria isolated from arid regions of Tunisia. Twelve isolates, chosen as representative for different 16S rRNA gene patterns, were characterized by 16S rRNA gene sequencing and phenotypic analysis. Isolates were assigned to Sinorhizobium, Rhizobium and Agrobacterium. Symbiotic properties of Sinorhizobium and Rhizobium isolates showed a large diversity in their capacity to infect their host plant and fix atmospheric nitrogen. Strain RK 22 identified as Rhizobium was the most effective isolate.     

An Affordable Accurate Evaluation of the Binding Conformations Predicted by Molecular Docking Studies in Bio-System

正Recently,docking has been widely used to predict the binding-modes of protein-inhibitors,when the crystal complexes structure was absent.Most docking algorithms are able to generate a large number of probable conformations,it,however,is difficult to effectively evaluate these docking poses and identify the most reasonable bindingmode.In the present study,on the basis of the crystallographic data of human 3-hydroxy-3-methylglutaryl coenzyme     

WIMAX与WI-FI技术分析及联合组网

介绍了WiMAX与Wi-Fi两种无线宽带接入技术,并对两者之间的关系及相互之间的影响做了对比及分析,并对WiMAX的关键技术进行了详细说明,最后对两者的联合组网方式做了简单的探讨。