沾化凹陷多元供烃成藏特征及成藏模式

综合构造单元划分,结合油气来源分析,对沾化凹陷多元供烃成藏单元进行划分,进而分析成藏要素,明确源-藏体系形成的动态过程。结果表明,沾化凹陷可划分为单洼单源、单洼多源和多洼多源3类7个多元供烃成藏单元。东营组沉积时期沙四上亚段烃源岩成熟,形成洼陷内部单源岩性油藏和缓坡带的单源油藏;明化镇组沉积时期各段烃源岩均进入大量排烃期,油气在陡坡-凸起带和中央低凸起上形成大规模的混源油藏。不同供烃成藏单元输导体系与储盖组合的耦合控制了油气的分布:在平面上油气呈发散式向构造高部位运移,在缓坡带、陡坡带、低凸起和潜山等有利的圈闭聚集成藏;在剖面上沙四段、沙三段形成自源型岩性油气藏,新近系的油气分布于馆陶组厚层河流相储层形成披覆构造油藏。     

长春岭沿江地区扶余油层成藏主控因素分析

长春岭沿江地区扶余油层油气成藏条件研究和典型油气藏分析表明,研究区内青山口组烃源岩成熟度低、生烃能力较差;研究区的油气成藏规模受外部油气运移数量的控制。研究区油气主要来源于其西北的三肇凹陷青山口组烃源岩;不规则零散分布的河流相砂体、断层对砂体的强烈分割作用以及多期多成因油气对圈闭的充注作用是造成研究区油气分布复杂现象的主要原因。研究区存在"源岩区高压倒灌—侧向断裂疏导—构造高部位聚集"的成藏模式。研究区油气生成、运移与圈闭的形成期在时空上形成了良好有机的配置关系;其中明水组末期是研究区油气成藏事件的关键时刻。密集断裂带及油源补给程度是研究区油气成藏的主控因素。     

曹台变质岩潜山油气的运移与成藏特征

基岩潜山油藏具有油气成藏的两种特征 ,即外来的油源和裂缝性储集空间 .辽河油田曹台潜山油藏的形成与烃源岩的演化和潜山圈闭的形成演化以及油气的运移密切相关 .在岩心观察与描述的基础上 ,利用薄片观察裂缝充填的方解石碳氧同位素分析 ,结合基岩潜山圈闭的形成与演化过程 ,探讨了辽河大民屯凹陷曹台变质岩潜山的成藏特征 .研究表明 ,潜山西侧凹陷烃源岩于沙二期 (Es2 )成熟供烃 ;潜山圈闭在沙三期末 (Es3 )定型 ,在东营早期 (Ed)成藏 ;边界断层为油气运移提供了良好的通道 ;油气以垂向运移 ,侧向注入的形式运移至潜山圈闭中 ;基岩中发育的裂缝系统为油气的储集空间 ;形成了烃源岩生烃、储集、运移和圈闭演化相互匹配良好的成藏模式 .     

渤海湾盆地不同凹陷新近系油气成藏条件差异性及聚集模式

通过对渤海湾盆地新近系生储盖、圈闭及输导等条件的研究,探讨不同凹陷新近系油气成藏条件的差异,并建立3类油气聚集模式。研究表明:渤海湾盆地新近系油气成藏具有它源供烃、储层发育、断层输导和晚期成藏等共性,但不同凹陷的成藏条件差异较大;自盆地外围凹陷向渤中凹陷,新近系的供烃层系变多变新,新烃源岩层的贡献逐渐增大,盖层质量逐渐变好,新近系油气输导方式主要有通源断层直达、次级断层调整和混合输导式3种;油气聚集模式概括为"原生供烃-通源断裂输导-构造控圈"披覆带聚集模式、"次生供烃-浅部断裂输导-断层控圈"浅凹带聚集模式及"混合供烃-复式输导-不整合控圈"斜坡带聚集模式3类;披覆带模式成藏条件最优越,适于新近系大规模油气聚集,而分别受保存条件、输导条件制约的斜坡带、浅凹带聚集模式,新近系油气相对不甚富集。     

蓬莱9-1构造花岗岩古潜山大型油气田的成藏过程

目前国内针对燕山运动期中生代侵入的花岗岩潜山油气如何成藏且成藏规模之大的研究非常匮乏。该文主要采用岩心观察、薄片鉴定、指纹化石对比及油气盆地模拟等方法,对渤海海域蓬莱9-1构造花岗岩潜山的储层特征、油源对比及成藏条件进行了详细剖析,恢复了渤海蓬莱9-1构造花岗岩古潜山大型油气田的成藏过程,并建立成藏模式。根据花岗岩风化壳的风化程度,自上而下分为：砂-砾质风化带、裂缝带与基岩带,主要储集空间为溶蚀孔隙与微裂缝,风化壳储层发育厚度几十米,甚至达200多米。古潜山油源来自渤东南洼沙三段、沙一段或东营组烃源岩。储层发育区主要分布于风化壳的高部位,新近系馆陶组是潜山油藏有利的封堵层。古潜山油藏具有“下生上储顶盖的新生古储式组合”和“高压驱烃、断层不整合输导、油气仓储式成藏”的特点。     

绥中36-1地区油气富集特征及成藏主控因素分析

SZ36-1地区已发现的油气藏平面上主要分布在辽西低凸起上,纵向上主要分布于东二下亚段。油气藏以构造油气藏为主,主要烃源岩层系为古近系沙河街组一段和三段,主要储层类型为三角洲砂体,东二下段上部区域性展布的泥岩构成盖层。油气藏以油为主,油藏多为常压下形成,油气成藏期较晚。采用油藏解剖和油气分布与成藏条件之间空间匹配关系研究的方法,对该区油气成藏的主控因素和模式进行了研究。研究表明:该区油气成藏的主控因素是断裂、储盖组合以及输导体系。油气藏横向分布主要受储层控制,而纵向分布主要受断裂控制。受断裂和凸起的影响,该区主要为凸起披覆背斜型成藏模式。     

准噶尔盆地东部吉南凹陷二叠系油藏形成条件、成藏特征与勘探方向

近年来吉南凹陷二叠系发现高产油藏,揭示了巨大油气勘探潜力。利用烃源岩与原油地球化学测试、铸体薄片观察、流体包裹体测试等多种技术手段,结合地层埋藏史和热史,研究吉南凹陷二叠系油藏形成条件和成藏特征。结果表明：①吉南凹陷二叠系存在源下、源内、源上三种成藏组合。芦草沟组发育连续分布的厚层优质咸化湖盆相烃源岩,且主体达到成熟阶段,资源基础雄厚。源下、源内和源上均发育规模储集体,且芦草沟组和梧桐沟组厚层泥岩可作为良好的区域盖层,生-储-盖配置良好。②吉阜1区块以潜山油藏为主,侧向油源、断裂输导、较大的供烃窗口是油藏形成的关键;萨探 1和萨4区块主要为构造-岩性油藏,早期高熟油藏多被破坏或调整,现今油藏以其西部、南部侧向运移过来的成熟原油及本区块低熟-成熟原油为主体,其中萨4区块油藏被破坏殆尽。萨2区块以构造和构造-岩性油藏为主,原油来源于本区块成熟烃源岩。③源上有利勘探区为断裂输导条件好、构造相对稳定、三叠系保存更完整的区域,源内勘探有利区为西部和南部构造相对稳定区域,源下有利勘探方向为源储压差大、构造相对稳定的构造高点。④源内页岩油藏和西部火山岩风化壳潜山油藏是未来勘探的重要领域。     

塔里木盆地北部于奇地区东河砂岩油气成藏与勘探前景

东河砂岩是塔里木盆地勘探热点之一.以成盆、成烃和成藏理论为指导,应用储层预测、流体包裹体分析等技术和方法,综合研究了于奇地区东河砂岩油源条件、储集条件、保存与储盖组合、圈闭条件、油气成藏期次与成藏过程.结果表明,区内油源主要来自阿克库勒凸起南部寒武系—下奥陶统烃源岩,油源较充足,具有一定的资源潜力;储集层类型以孔隙型为主,为中等容积、中等渗透性能储层,有利的储层分布区位于于奇东部地区的东南一带;储盖组合为下储上盖式,盖层封盖能力好;圈闭类型主要为非构造圈闭,至少发生了一次油气注入成藏期即喜山早期.提出今后勘探应突破传统的构造圈闭的束缚,坚持以寻找多类型圈闭特别是地层圈闭为原则.     

车镇凹陷北部陡坡带油气成藏规律研究

通过对车镇凹陷北部陡坡带地质特征和油气成藏条件的分析,发现该带具有坡陡、沉积相带窄、滑脱潜山和鼻状构造发育等特点,紧邻生油洼陷,油气资源丰富,成藏条件好。油气成藏模式主要有:它源前古近系古潜山油气成藏模式和自源古近系中深层油气成藏模式。古近系近岸水下扇、浊积扇砂砾岩体和下古生界古潜山碳酸岩是油气最主要的储集层,是该带油气勘探的重点。     

安达凹陷中浅层油气成藏主控因素研究

通过对松辽盆地北部安达地区源岩条件、排烃动力条件、油源断裂、储层、圈闭等成藏要素的综合研究,明确了安达凹陷中浅层油气成藏的主控因素及成藏规律。研究表明：（1） 成熟烃源岩的发育程度是安达凹陷中浅层油气成藏的首要控制因素,控制了油气藏的范围及规模;（2） 对于泉四段而言,在成熟烃源岩内青一段的超压发育程度是其成藏的主要控制因素;（3） 对于青山口组而言,油源断裂是基础,青二+三段储层的发育程度是其成藏的主要控制因素;（4） 安达凹陷整体相对较低的成熟度（大部分地区R_o<0.9%）及相对较薄的烃源岩（大部分地区烃源岩的厚度小于80m）造成的生烃潜力不足可能制约了姚家组的成藏。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with