A Study on Organic Inclusions in Clastic Reservoir Rocks and Their Application to the Assessment of Oil and Gas Accumulations

Terrigenous clastic reservoir rocks are widespread in China,and nearly all the industrial oil and gas accumulations in eastern China occur in the clastic rocks.The study shows that organic inclusions are mostly distributed in the secondary fissures and pores which were ormed in the process of oil-rock interaction,rather than in the cements or secondary enlargements. The organic inclusions are dominantly organic gas-rich or are composed of pure hydrocarbons.Homogenization temperatures range mainly from 120℃ to 130℃，which shows a relatively high maturity of organic matter.Vertical and horizontal temperature changes provide the grounds for the investigation of basin evolution and thermal fluid-kinetics-model.Fluorescence spectral characteristics o the organic inclusions indicate that oils and gases in the area studied probably have experienced two-stage or two-time migration.Micro-fluorescence rescearch is one of the effective approaches to oil/source correlation and oil migration-stage determination.The abundance and occurrence of organic inclusions is one of the indicators of oil and gas abundance and accumulation in rock layers.With the help of other informatio,organic inclusions can provide the basis for the prospective assessment of oil and gas in clastic reservoir rocks.     

热中子测井监测含水层中不混溶相有机污染物

介绍了热中子热井的试验原理及野外和室内试验方法，阐述了热中子测井对在含水层中运移复杂的不混溶相有机污染物探测和监测有可行性及其优缺点。     

云南腾冲热泉金的有机地球化学研究——Ⅰ生物标志物浅析

本文主要通过对比分析研究热泉软泥中的金含量与有机质及含硫化合物的相关性。并测定泉水及软泥中含金量和软泥中有机碳含量，以及对抽提物中的饱和烃和芳烃族组分进行色谱—质谱分析，最后得出的结论：有机质的沉积环境为还原—强还原，有机质属于腐泥－腐殖型，接近和达到了成熟阶段。软泥中金含量与有机质的性质无明显相关关系，与有机碳含量也无明显相关关系，而与其成熟度相关密切。样品分析证实软泥中含硫化合物与金含量呈正相关性。对比分析了水及软泥中金含量，认为两者之间也无明显相关关系     

沉积盆地中的流体活动及其成矿作用

盆地流体是指在沉积盆地演化过程中活动并参与了沉积物的各种成岩－后生变化的复杂流体相，包括来自盆地内部沉积物压实和相变所释放出的流体，以及主要由盆地边缘大陆隆起区补给的下渗大气降水。流体的流动机制主要有重力驱动流和压实驱动流两种。各种沉积有机质的广泛参与，乃是盆地流体区别于其它地壳流体的最基本特征。这对流－岩反应、对盆地流体及其周围环境的物理化学参数、对成矿金属迁移的形式和能力以及对成矿金属的沉淀就位等过程都有着十分重要的影响。盆地流体具典型的低温热液地球化学特性，流体的同位素组成和流体中的溶解组份与沉积物的特征以及沉积体系的空间分布密切相关。盆地流体广泛参与了沉积物的成岩、后生、成油、成气和成矿过程。沉积体系的空间分布（不均匀介质）、同沉积断裂体系、欠压实异常高压地层以及古地形联合控制着盆地流体的流动迁移和汇聚成矿。有关的矿床类型主要包括：沉积喷流型（ｓｅｄｅｘ型）矿床、密西西比式（ＭＶＴ）铅锌矿床、大陆砂页岩型矿床以及沉积岩容矿的微细浸染型金矿床等。我国南秦岭泥盆纪地层中的沉积喷流型铅锌矿床和滇黔桂金三角二叠纪－三叠纪地层中的微细浸染型金矿床都是盆地流体成矿的典型实例     

Sediment—Hosted Gold Deposits in China_geochemistry and Prospecting

Sediment-hosted gold deposits are the major type of gold resources in china,Concen trated mostly in the two“Triangle Regios“,they are generally hosted in fine-clastic turbidite,hydrothermal chet and marl ranging from cambrian to Triassic in age,structurally controlled by domes,anticlines and second-ordered faults.They are similar to the Carlin-type gold deposits in mineral assemblage and geochemical marks,with an element association closely comparable to those of modern springs and submarine hydrothermal sediments.Organic matter may have played an important role in mineralization .The ore solution may be hydrothermally altered meteoric water developed i areas of local geothermal anomaly.     

广州珠江西航道,流溪河有机污染特征与感潮作用

珠江西航道和流溪河在广州市区上游，为广州市主要水源区。由于感潮作用，受市区严重污染的水体因涨潮上溯而上游传输。严重影响上游水质。因此，弄清感潮作用对广州水源区水质的影响程度和范围，对水源保护与利用有重要意义。本研究从下游到上游，对水源区底泥中有机物特征进行了分析，结果表明：（１）从上游到上游，受感潮作用影响逐渐减小，污染程度逐渐减轻；（２）水源区有机物特征呈有规律变化。从靠近城市的下游到远离城市的     

大港油田奥陶系碳酸盐岩生物标志化合物地球化学特征

在本项研究中，根据Ｐｒ／Ｐｈ比值，β－胡萝卜烷类化合物丰度，甾／藿比值，单甲基高位取代支链烷烃，ＯＥＰ值，升藿烷Ｃ３１２２Ｓ／（２２Ｓ＋２２Ｓ）比值等参数，对大港油田奥陶系碳酸盐岩的地球化学特征作了详细的研究，该为该套地层只于弱氧化－弱还原条件下及经历了强烈的细菌改造。     

北京市延庆县红果寺炼镁用白云岩矿床地质特征及意义

红果寺炼镁用白去是北京地区普查评价的第二个炼镁用白云岩矿床。矿体呈层状，单斜构造，赋存于雾迷山组三段地层中，出露较高，位于侵蚀基准面之上，适于露采。该矿的发现法区在北京地区此类矿产的勘查和白云岩的深层次开发利用，具一定意义。     

催化臭氧化降解有机废水及影响因素

主要论述了自制的V-O型催化荆催化臭氧化降解有机废水的研究。试验表明，以TiO2，SiO2，ZrO2作栽体，在氮气或氧气中焙烧，而制得的6种催化荆中，V-O／SiO2／N2显示了较好的催化性能和活性；通过催化荆吸附试验和在反应体系中加入一定量的自由基猝灭荆，初步探讨了其催化机理，即催化荆和臭氧反应，生成了氧化性极强的羟基自由基；催化臭氧化时间、催化荆用量、进气臭氧浓度、体系pH值等因素均对降解产生一定的影响。