哥伦比亚亚诺斯盆地成藏组合与勘探潜力

为明确亚诺斯盆地的勘探潜力,需对盆地进行成藏组合分析。首先对盆地进行地质评价,然后进行成藏组合
评价,最后对每个二级成藏组合的油气地质特征和资源潜力进行研究,指出下一步的勘探方向。亚诺斯盆地成藏条件
优越,根据储层含油气情况,将盆地划分为证实的中部、潜在的上部和下部共3 套一级成藏组合。根据盆地的构造、生
储盖与油气富集特征等6 项原则,进一步将中部成藏组合划分为上白垩统、古新统、始新统和渐新统4 套二级成藏组
合。研究认为,盆地所有成藏组合内待发现可采资源量为3.06×108 t 油当量,以上白垩统成藏组合的资源规模最大。
对于盆地下步勘探,应以上白垩统和始新统成藏组合为主,内斜坡带和前渊带为主要目标区带。首次应用的成藏组合
分析步骤和划分原则等研究方法对其他盆地的成藏组合研究具借鉴作用。     

南美地区油气地质特征及常规油气资源潜力

在分析南美油气地质特征的基础上,进行南美主要含油气盆地待发现常规油气资源评价,总结待发现油气资源分布规律,探讨其勘探前景。结果表明,受4大板块碰撞影响,南美沉积盆地可分成弧前、弧后、前陆、内克拉通和被动陆缘盆地5种类型。南美油气成藏条件优越,烃源岩以中新生界海相-陆相泥岩为主,生烃潜力大。储层以白垩系和第三系碎屑岩和碳酸盐岩为主,分布广泛。盖层中新生界区域性泥岩和盐岩为主,封堵能力强。采用以成藏组合为基础评价单元的资源评价方法,将南美65个盆地共划分出152个成藏组合,并进行了资源评价。预测南美65个主要含油气盆地的待发现石油可采资源量为263716MMB,待发现凝析油可采资源量为7405MMB,待发现天然气可采资源量为559020BCF。待发现油气资源在平面上呈“两带”展布、“两中心”富集特征;在纵向上主要富集于白垩系和第三系。被动陆缘盆地和前陆盆地是南美未来油气勘探的两个重点领域,其中深海和前陆冲断带是主要勘探方向,巴西、委内瑞拉是重点关注国家。     

典型大西洋型深水盆地油气地质特征及勘探潜力:以巴西桑托斯盆地为例

巴西桑托斯(Santos)盆地是典型的大西洋型深水盆地:盆地经历同裂谷→过渡→后裂谷(漂移)3个演化阶段.裂谷期Guaratiba组湖相黑色页岩为盆地主要的烃源岩,后裂谷期Itajai-Acu组深水页岩是盆地次要的烃源岩;盆地主要发育第三系Marambaia组浊积砂岩、白垩统Santos组浊积砂岩、Guaruja组碳酸盐岩和Guaratiba组砂岩和灰岩共4套储集层,油气主要富集在Guaratiba组砂岩和灰岩储集层中;盆地过渡期发育的Ariri组盐岩层是盆地良好的区域性盖层,第三系层间泥页岩为盆地局部层间盖层;以主要含油气储集层为核心,将盆地划分为下部、中部和上部3套成藏组合,运用油藏规模序列法预测3套成藏组合待发现可采资源量分别为17.673×109,14.138×109和6.821×109桶,综合分析认为盆地下部勘探潜力区为东部的下部成藏组合和西部的中、上部成藏组合.     

中亚地区费尔干纳盆地油气地质特征

对中亚地区费尔干纳盆地的地层、沉积和石油地质特征等进行了综合研究.该盆地的烃源岩为下第三系、上白垩统和中下侏罗统的海相与湖相泥岩、页岩和泥灰岩,有四套含油气层系,主要油气储集层为下第三系的滨浅海相和三角洲相砂岩和碳酸盐岩,多套泥岩、膏岩和泥灰岩为区域性和局部盖层,油气主要运移期和聚集期发生在早上新世,油气圈闭和油气田(藏)主要有构造型、构造-地层复合型和地层型等3种,目前油气主要分布在南部边缘构造带的两个含油气区.全盆地最大的油气田--明布拉克油气田的发现,使盆地油气潜力评价价值更高,可为整个中亚地区的油气勘探开发提供借鉴和指导作用.     

松辽盆地月亮泡地区岩性油藏成藏规律研究

通过对研究区各成藏组合沉积微相的研究及典型油藏剖面的解剖,分析了在西部英台—白城沉积体系控制下的月亮泡地区垂向上不同含油气组合岩性油藏的成藏主控因素、成藏规律及相应的勘探思路,丰富和完善了松辽盆地斜坡区岩性油藏的研究。研究表明:三角洲前缘相变所造成的岩性变化是上白垩统姚二+三段成藏的主要控制因素,嫩江组区域性水进形成的稳定泥岩为姚二+三段的成藏提供了良好的区域盖层,一定厚度的直接盖层是姚一段、青山口组及泉四段成藏的主要控制因素,而三角洲前缘相带良好的储盖组合及沉积微相相变造成的砂体侧向尖灭是这3套油层发育岩性油藏的又一重要原因;青山口组大套泥岩中发育的超压为形成"源下成藏"的泉四段提供了油源及排烃动力条件。     

泰国呵呖高原盆地油气成藏组合与资源潜力

针对海外含油气盆地勘探程度较低、资料相对匮乏的问题,以呵呖高原盆地为例开展了成藏组合及油气资源潜力研究,研究中以构造沉积演化成藏的递进控制作用为核心,获得了以下认识。晚古生代新生代,盆地构造演化可划分为两期构造层序TS1和TS2;其中,TS1构造层序内主要充填浅海相滨岸、陆棚、碳酸盐岩台地沉积,TS2构造层序内主要充填陆相冲积扇、河流、湖泊沉积;沉积相控制下盆地内发育两套主要的生储盖组合,结合盆地的主要圈闭类型,进一步划分出已证实二叠系和远景三叠系两个一级成藏组合,4套二级成藏组合;在下一阶段的勘探中,纵向上应侧重于二叠系一级成藏组合的天然气勘探,平面上应重视以Phu Phan隆起为主的盆地中部及以Khorat次盆北部和Sakhon Nakhon次盆西部为主的盆地西部地区,前者发育二叠系一级成藏组合最有利油气勘探区,后者为三叠系一级成藏组合最有利油气勘探区。     

南美东缘被动陆缘盆地石油地质特征与资源潜力评价

为明确南美东缘被动陆缘盆地群油气资源潜力,在系统分析19个被动陆缘盆地群石油地质特征的基础上,首次以成藏组合为单元评价被动陆缘盆地群资源潜力,探讨下步勘探方向:1)南美东缘整体经历"裂谷"—"过渡"—"被动陆缘"3个构造演化阶段;2)发育2套主要烃源岩,即白垩系裂谷期湖相烃源岩和被动陆缘期海相烃源岩;白垩系(占总可采储量69%)和第三系(占总可采储量29%)是2套主要的储集层;盖层为白垩系层间泥岩、第三系海相泥页岩,中段盆地群发育一套白垩系膏盐岩区域性盖层;油气主要富集在中段含盐盆地(可采储量占总量96.32%);盆地群主要发育上部、中部和下部3套大的成藏组合;3)预测总待发现油气可采资源量为132 451百万桶,平面上主要分布在坎波斯、桑托斯、埃斯普利托桑托、圭亚那和马尔维纳斯盆地;纵向主要集中在上部成藏组合;坎波斯盆地上部成藏组合,是最有利的勘探区域,其次为桑托斯盆地的中部和下部成藏组合。     

BN洼陷岩性油气藏成藏主控要素分析

B盆地勘探风险大程度低,一直以寻找构造油气藏为主。2010年在其北部斜坡带首次发现Baobab N岩性油藏,拓展了盆地勘探新领域;其成藏具典型代表性,可为盆地其他凹陷岩性勘探提供指导。通过成藏要素分析,结合油藏和砂体展布特征,探讨了BN岩性油藏的成藏主控要素。研究表明:BN岩性油藏受构造和岩性双重因素控制。洼陷发育优质烃源岩,且与砂体直接接触,具较好的生储盖组合。控制油气沿其周缘分布,具构造背景的砂体利于油气充注,而扇中辨状水道微相控制油气富集,具良好封堵能力的断层与反转构造有机配置为BN洼陷岩性成藏最重要的控制因素。对于强反转裂谷盆地来说,保存条件要求相对苛刻,上覆M组厚层泥岩质纯厚度大;且不同程度地发育超压,为油气藏保存提供优越的条件,控制岩性体最终成藏。     

滴南凸起-阜北斜坡中上侏罗统-下白垩统油气成藏条件分析

作为准噶尔盆地腹部较早开发的地区之一,近年来在滴南凸起下白垩统及白家海凸起-阜北斜坡区的中上侏罗统地层内相继发现了高产油气藏,揭示了该区中上侏罗统-下白垩统具有良好的生、储、盖成藏条件,丰富的圈闭类型和有效的疏导体系。在成藏条件上,东道海子凹陷、阜康凹陷的石炭统、二叠系平地泉组以及侏罗系的八道湾组、三工河组、西山窑组等多套烃源岩为侏罗-白垩系成藏提供了充足的油气,河流、三角洲沉积体系控制下的中上侏罗统头屯河组、齐古组以及下白垩统的清水河组、呼图壁河组分布有多套有效的储盖组合,长期继承性的断裂系统及砂体和不整合面作为油气的疏导体系,在成藏条件分析的基础上总结了滴南凸起-阜北斜坡地区3种油气成藏模式。     

澳大利亚西北陆架油气成藏主控因素与勘探方向

以澳大利亚西北陆架勘探现状和油气田最新资料为基础,采用油气地质综合分析方法,探讨油气成藏主控因素与有利勘探方向。研究结果表明:成藏主控因素为"源盖控区,大型浪控海相三角洲控藏"。北卡那封(North Carnavon)盆地发育滦金(Rakin)台地与埃克斯茅斯(Exmauth)台地两大有利区和古新统海相浊积砂岩潜在油气富集体。波拿巴(Bonaparte)盆地已有巨型油气田中发现的萨胡尔(Sahul)台地、武尔坎(Vulean)次盆和玛丽塔(Malita)地堑等较成熟探区再有重大发现的潜力仍然巨大,上白垩统Puffin组水下扇和斜坡扇浊积砂岩与阿什莫尔(Ashmon)台地中新统生物礁是该盆地两大新领域。布劳斯(Browse)盆地存在围绕盆地富烃凹陷卡斯威尔(Caswell)次盆分布的4大油气富集有利构造带和Puffin组浊积砂岩潜在有利勘探目标层位。柔布克(Roebuck)盆地勘探程度极低,各成藏条件有待于厘定。     

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