淮南朱集井田现今地温场特征及其影响因素分析

矿井热害是目前淮南煤田煤矿地质工作的主要研究内容之一。文中在汇总和分析井田内32个地面钻孔井温测井数据和2个井下巷道岩温测试数据的基础上,绘制了地温-深度关系图、地温梯度-深度关系图以及井田现今地温梯度分布图,并探讨了该区现今地温场特征及其影响因素。研究表明:朱集井田现今地温梯度介于1.7~3.8℃/hm,平均2.83℃/hm,地温整体较高,在垂向上表现为传导型增温特点,在平面上表现为南高北低、东高西低的特点;地质构造对区内现今地温场起着主要控制作用,岩性特征和地下水活动对地温场的分布也有一定的影响。     

涡北煤矿地温分布规律及其影响因素分析

涡北煤矿存在地热异常现象,测温孔地温梯度高达3.33℃/hm。为揭示矿区地温场特征,根据测温孔资料和矿山生产地质资料对主采煤层82煤底板温度与埋藏深度之间关系及地温梯度等值线分布特征进行研究。结果表明:F26,F22断层对地温分布控制作用明显,该区地温异常的原因是深循环地下水上升引起局部地温增高。     

地温场分布特征及控制因素研究——以遵义地区为例

本文以遵义市地热勘查区为研究对象,根据对钻孔测温数据进行计算,得出了遵义地区(水平及垂直)地温场的变化特征,并分析了遵义地区地温场分布的控制因素。研究结果表明该地区地温场平面变化为由东向西呈逐渐升高趋势,自北向南呈近等值区分布;在垂直方向上温度随深度的增加而增加,岩性发生变化,地温梯度随之变化。遵义地区地温场变化及地温异常主要受该地区地质构造、地层岩性、水动力作用、及放射性元素的影响。     

丁集煤矿深部地温预测

针对丁集煤矿矿井高温热害严重的问题,采用井下炮眼温度测定方法,测量地温;借助有限元ANSYS的热耦合分析程序,模拟岩巷和煤巷调热圈,修正矿井地温,确定地温梯度．预测该矿深部地温。结果表明,该矿-500m水平以上、以下的地温梯度分别为3．5、4．0℃／hm;采煤层深度为一600m以下的地温在38℃以上,属于二级热害区。该研究可为矿井深部降温提供数据参考。     

裂谷盆地复杂地温场精细表征方法

东非裂谷盆地地温场复杂，特别是E油田内部地温梯度存在很大差异，影响了油藏流体性质和开发策略。深入分析油田测试资料后认为，地温梯度在平面上呈分区性，垂向上呈分段性，常规研究方法难于刻画此特征，基于此，探索了一种能精细表征油田内部地温场差异的方法——分区分段回归法。利用该方法对E油田复杂地温场进行了精细表征。结果显示，浅层地温梯度平均为6.10℃/（100 m），平面上由南往北呈减小趋势；深部地温梯度平均为1.53℃/（100 m），平面上由南往北呈增大趋势。沉积是平面地温梯度产生差异的主要因素。     

板石区地温异常分析

高温矿区一直是影响煤炭开采的重要因素,利用钻孔测温资料,对珲春盆地板石区地温异常变化进行了研究,得出了地温梯度在平面和剖面上的变化规律,从地层、构造、岩浆活动三个方面,对地温异常的原因进行了分析,提出了矿井建设、开采阶段应注意的问题及对其有无利用价值进行勘查评价的建议.     

二连盆地白音查干凹陷古地温与油气生成的关系

白音查干凹陷的热史研究还处于初级阶段,对补测数据进行了古地温恢复、剥蚀厚度等方面的详细研究,得到以下结论:①现今凹陷地温梯度为3.06℃/100 m,低于二连盆地平均水平3.50℃/100 m,且地温梯度随构造部位的不同而各异。②洼陷镜质体反射率最大,热演化程度最高,具备了大规模生烃的条件,其中阿二段是凹陷生烃的主力层位。③古地温恢复的结果是凹陷的古地温梯度为5.21℃/100 m,明显高于现今地温梯度。④赛汉塔拉组沉积以后,凹陷遭受不同程度的剥蚀,剥蚀厚度从850 m到3 970 m不等,生油门限变浅。新生代以来地温梯度减小,生油过程中断。⑤凹陷地质背景决定了白音查干凹陷生油层大部分处于低成熟阶段,断裂带处于凹陷油气运移的指向处,大套地层遭受剥蚀,盖层及油气封堵条件遭受破坏,使低成熟—高成熟原油遭受降解氧化,形成次生降解稠油。     

马尾山硫铁矿围岩温度特征及开采层地温计算

根据安徽马尾山硫铁矿矿区三个钻孔地下水的实测温度,分析了矿体围岩温度场的特征。通过温度数据拟合得到了实测地温梯度。结合地下水的运动修正地温梯度,最终计算得到了大地热流和开采层的温度。另外,根据区域地温下延公式对开采层温度进行了计算。计算结果表明,通过修正后的地温梯度计算得到的开采层的温度与应用区域地温下延公式计算得到的温度是一致的。开采层温度略高于安全标准,但不会产生热水危害。     

伊宁凹陷古地温恢复与热演化史研究

应用包裹体测温和Easy-R.方法恢复了伊宁凹陷的古地温演化史,结果表明伊宁凹陷晚二叠世的地温梯度约为40℃/km,以后经过两次波动(分别对应于K1和E1两次构造运动)逐渐减小到现今的24℃/km.上二叠统烃源岩热演化程度主要受古地温控制,主生油期在中晚三叠世.印支期及其以前形成的圈闭,是二叠系油气聚集的主要场所.     

峰峰、大城、开平矿区深部煤层含气量预测

为获得峰峰、大城、开平矿区的深部煤层含气量,基于其浅部煤储层压力、镜质组反射率、试井实测资料以及钻孔剖面温度,采用煤级-吸附-压力方法,分析三个矿区深部储煤层温度、镜质组反射率梯度及煤储层压力梯度,结合煤的等温吸附特征,预测其深部煤层含气量.结果表明,峰峰、大城、开平矿区均处于正常地温梯度带;煤化作用受地层埋深控制,深层镜质组反射率梯度分别为0.13%/hm、0.17%/hm、0.08%/hm;煤储层压力梯度大多低于0.98 MPa/hm;煤层饱和吸附量随煤级的增加而增大,800～2 000 m煤层原位含气量预测为3.40～13.03 m3/t.     

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.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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