大庆油田三元复合驱液与储层矿物反应性研究     

殷义栋  鲁安怀  李艳  丁瑞  王浩然  杨晓雪 《岩石矿物学杂志》2015,34(6):811-820

三元复合驱技术能够显著提高石油的采收率,但在生产过程中三元复合注入液易与储层矿物反应,破坏储层并结垢,造成井下堵塞、采收率降低等问题,因此研究三元复合驱液在储层中的溶、运、堵过程及反应机理成为当务之急。本文利用X射线衍射(XRD)、X射线光电子能谱(XPS)、场发射环境扫描电镜(ESEM)及X射线能谱仪(EDS)测试手段精细表征了大庆油田储层矿物钾长石、石英、高岭石与强碱三元复合驱液作用的反应过程及变化特征,并通过反应动力学计算得到了相应的Si、Al溶出动力学方程及矿物溶蚀再沉积规律,深入探讨了反应机理。结果显示,钾长石与强碱复合驱液作用60 d后Si溶出量约为Al的3倍,生成三水铝石和硅酸盐沉淀物;石英的Si溶出量呈线性增加,60 d后超过300×10-6,表面生成碳酸盐颗粒;高岭石60 d后Al溶出量约为Si的3倍,结晶度下降25.26%,生成水钙沸石;强碱对矿物的溶蚀破坏程度与其浓度呈正相关。  相似文献   

滇池北岸大清河湿地景观植物配置研究     

肖雪缘  陈坦  李煜  樊国盛 《湿地科学与管理》2015,(1):8-12

通过对大清河湿地植物分层次的筛选,根据生态学、湿地学、植物学、美学相关理论,依据植物的生态习性及湿地的区域划分,将大清河湿地划分为深水区、浅水区、沼泽区、水边及岸带区和陆地区五大区域,并分层次进行相应的植物配置,提出挺水植物+浮水植物+沉水植物、挺水植物+浮水植物、挺水植物片植、单层乔木片植、草本+挺水植物、乔木+灌木+草本6种配置模式。  相似文献   

河南省大青一带地球化学特征及找矿前景     

苏小岩  赵志强  李自民  方斌  张阗  别建芳 《华南地质与矿产》2008,(3):1-6

河南省大青地区沿乔端-瓦穴子断裂带和二郎坪群火神庙组分布着以银、铅、锌为主的带状异常,过去未引起重视。通过地质大调查项目实施,对本区地球化学特征进行了研究,并重点检查了以银、铅、锌为主的异常。在火神庙组的变石英角斑岩中发现了银、铅、锌多金属矿化带,伴生有金、铜等金属矿化,并对其成因进行了初步分析。鉴于区域上存在众多的以银、铅、锌为主的综合异常和相似的地质环境,找矿产潜力很大,随着矿产资源评价工作的全面展开,本区找矿定会有较大的发现和突破。  相似文献   

普洱大箐铜矿地质及成因     

张荣伟 《云南地质》2008,27(3):351-356

矿体产于断层破碎带中,受断层和地层层位控制。根据矿床地质特征研究,发现大箐铜矿与兰坪金满铜矿具有一定相似性,认为大箐铜矿应属中低温热液型构造铜矿床。  相似文献   

内蒙古中部大青山新地沟-卯独庆金矿床的 构造-蚀变-成矿作用   总被引：1，自引：0，他引：1  

赵维宽  徐九华  席忠  李德亭  贾长顺 《地质通报》2008,27(4):575-583

新地沟和卵独庆金矿赋存于新太古界色尔腾山群柳树沟岩组中,是典型的与韧性-脆韧性剪切变形有关的绿岩型金矿.构造-蚀变岩石的主要类型有千糜岩化石英绢云片岩、千糜岩化绿泥绢云片岩、糜棱岩化绿泥石英片岩、绢云绿泥长英质糜棱片岩、长英质碎裂岩、黄铁绢英岩质构造片岩等.构造-蚀变岩石的岩石地球化学特征与中基性火山岩类似.其稀土元素总量∑REE(44.9×10-6～155.4×10-6)、LREE/HREE比值(7.0～26.1)、δEu(0.6～1.2)也显示了中基性火山原岩的特点.构造-蚀变-成矿流体的特征为富CO2的低盐度的较高密度的流体,具有造山型金矿的特点.前寒武纪绿岩带建造变质镁铁质火山岩分布的地区构造-蚀变作用强烈的地段是重要的找矿有利地区.  相似文献   

Field experiment of subgrade vibration induced by passing train in a seasonally frozen region of Daqing   总被引：1，自引：1，他引：0  

Ling Xianzhang    Zhang Feng  Zhu Zhanyuan    Ding Lin  Hu Qingli . School of Civil Engineering  Harbin Institute of Technology  Harbin  China . Institute of Subgrade  Prevention Engineering  China . Information & Engineering Technology College  Sichuan Agricultural University  Ya’an  China . School of Architectural Engineering  Heilongjiang University  Harbin  China Professor  PhD  Associate Professor 《地震工程与工程振动(英文版)》2009,8(1):149-157

The vibration characteristics and attenuation of the subgrade caused by passing trains in a seasonally frozen region of Daqing, China are investigated. Three field experiments were conducted during different times through the year, in normal, freezing and thawing periods, respectively, and the influence of the season, train speed and train type, is described in this paper. The results show that: (l) the vertical component is the greatest among the three components of the measured vibration near the rail track, and as the distance to the railway track increases, the dominant vibration depends on the season. (2) Compared with the vibration in the normal period, the vertical and longitudinal vibrations increase while the lateral vibration decreases in the freezing period. However, in the thawing period, the vertical and longitudinal vibrations decrease, and the lateral vibration increases. (3) As train speeds increase, the subgrade vibration increases. (4) The vibration induced by a freight train is greater than by a passenger train. These observations provide a better understanding of the vibration and dynamic stability of the subgrade and may be useful in developing criteria for railway and building construction in cold regions.  相似文献   

内蒙古大青山造山带含假蓝宝石尖晶石片麻岩的成因网格及动力学   总被引：5，自引：3，他引：2  

刘建忠  强小科 《岩石学报》2000,16(2):245-255

内蒙古大青山造山带中存在着一类特殊的岩石类型极度富铝贫硅的含假蓝宝石尖晶石片麻岩。含假蓝宝石尖晶石片麻岩的岩石学和矿物学的研究表明,变晶序列为Ｓａｐ＋Ｓｉｌ＋Ｇｔ＋Ｐｌ＋Ｂｉ（早期）→Ｓｐ＋Ｇｔ＋Ｓｉｌ＋Ｐｌ＋Ｐｅｒｔｈ＋Ｂｉ（峰期）→Ｃｏｒｄ＋Ｃｏｒｕ＋Ｍｔ＋Ｐｌ＋Ｍｉｃ＋Ｂｉ（峰后）。利用Ｇｉｂｂｓ相律和Ｓｃｈｒｅｉｎｅｍａｋｅｒｓ分析方法对该岩质系的矿物演化历史进行了理论推导,结果表明其与实  相似文献   

地下水化学动力学法在大庆前进水源地求参中的应用   总被引：2，自引：1，他引：1  

曹剑峰  沈媛媛  平建华  杜全友  刘梅侠 《吉林大学学报(地球科学版)》2006,36(1):96-102

大庆前进水源地自20世纪80年代运行以来,随着开采活动的加剧,地下水系统状态已发生改变,水资源重新评价势在必行。依据已有水文地质和水质分析资料,运用地下水化学动力学理论和方法,通过水化学指标（组分活度α、矿物饱和指数β）的计算分析,结合有限的抽水试验资料,分区计算出渗透系数K、导水系数T、地下水实际流速U、渗透速度V和地下水年龄t等5项水文地质参数,定量的认识水文地质条件,认证了水源地泰康组承压含水层具有渗透性强、导水性强、地下水循环交替快、可更新能力强等特点。不仅为地下水资源评价提供了参数,也为水源地持续合理地开发管理提供了定量依据。  相似文献   

http://www.sciencedirect.com/science/article/pii/S1674987110000022   总被引：9，自引：0，他引：9  

Gregory A. Davis  Brian J. Darby 《地学前缘(英文版)》2010,1(1):1-20

<正>The Early Cretaceous Hohhot metamorphic core complex(mcc) of the Daqing Shan(Mtns.) of central Inner Mongolia is among the best exposed and most spectacular of the spatially isolated mcc's that developed within the northern edge of the North China "craton".All of these mcc's were formed within the basement of a Late Paleozoic Andean-style arc and across older Mesozoic fold-and-thrust belts of variable age and tectonic vergence.The master Hohhot detachment fault roots southwards within the southern margin of the Daqing Shan for an along-strike distance of at least 120 km.Its geometry in the range to the north is complicated by interference patterns between(1) primary,large-scale NW-SE-trend-ing convex and concave fault corrugations and(2) secondary ENE-WSW-trending antiforms and synforms that folded the detachment in its late kinematic history.As in the Whipple Mtns.of California, the Hohhot master detachment is not of the Wernicke(1981) simple rooted type:instead,it was spawned from a mid-crustal shear zone,the top of which is preserved as a mylonitic front within Carboniferous metasedimentary rocks in its exhumed lower plate.~(40)Ar—~(39)Ar dating of siliceous volcanic rocks in basal sections of now isolated supradetachment basins suggest that crustal extension began at ca.127 Ma, although lower-plate mylonitic rocks were not exposed to erosion until after ca.119 Ma.Essentially synchronous cooling of hornblende,biotite.and muscovite in footwall mylonitic gneisses indicates very rapid exhumation and at ca.122—120 Ma.Contrary to several recent reports,the master detachment clearly cuts across and dismembers older,north-directed thrust sheets of the Daqing Shan foreland fold-and-thrust belt.Folded and thrust-faulted basalts within its foredeep strata are as young as 132.6±2.4 Ma,thus defining within 5—6 Ma the regional tectonic transition between crustal contraction and profound crustal extension.  相似文献   

松辽盆地火山岩相:相序、相模式与储层物性的定量关系   总被引：65，自引：22，他引：43  

王璞珺  吴河勇  庞颜明  门广田  任延广  刘万洙  边伟华 《吉林大学学报(地球科学版)》2006,36(5):805-812

松辽盆地火山岩相序主要受岩性控制。酸性岩喷发旋回多以爆发相开始、侵出相结束;中基性岩多以喷溢相开始、火山沉积相结束;酸性岩夹中基性岩的相序复杂,常见喷溢相±爆发相→火山沉积相。风化壳层之上和沉积夹层之上的火山岩是新的喷发旋回的开始,而火山沉积相和侵出相的出现往往标志着一个火山喷发旋回的结束。相模式能够直观反映火山岩相和亚相之间的叠置关系,是地震-岩相解释和储层预测的地质基础。火山岩15亚相中能够成为Ⅰ类储层的通常仅4种:火山颈,热碎屑流,喷溢相上部和侵出相内带亚相。岩相研究使得勘探的目标集中为:火山岩气藏勘探→找有效储层→识别可以作为Ⅰ类储层的4种火山岩亚相发育带。  相似文献