利用测井技术评价松辽盆地南部油页岩   总被引：9，自引：1，他引：8  

贺君玲  邓守伟  陈文龙  贾裕鲲  高金琦 《吉林大学学报(地球科学版)》2006,36(6):909-914

为了利用松辽盆地南部已有钻井的测井资料评价油页岩,分析了松辽盆地南部嫩二段油页岩的测井响应特征,充分利用测井资料连续性的优势,采用5口井93块油页岩岩心的有机碳、含油率化验分析数据和测井响应特征,建立嫩二段油页岩的有机碳含量与含油率之间定量关系式T^a=0.548 6TOC+0.18和△logR、自然伽玛与有机碳含量之间的定量关系式TOC=6.262 8×△logR+1.05,进而建立利用测井资料定量评价油页岩含油率模型T^a=0.546 8a×△logR＋0.548 6×△TOC＋0.18。通过模型计算出的油页岩段的含油率与油页岩实测含油率数据基本一致,而且计算出的含油率值连续。  相似文献   

硫酸（亚硫酸）盐渍土单次盐胀和冻胀发育规律研究     

王俊臣  李劲松  王常明 《吉林大学学报(地球科学版)》2006,36(3):410-416

对盐胀和冻胀规律的研究有助于深入认识硫酸（亚硫酸）盐渍土的工程性质。通过对天山北麓水磨河流域细土平原区硫酸（亚硫酸）盐渍土盐胀和冻胀试验研究发现：（1）随着温度的降低,试样盐胀和冻胀率逐渐增大。试样冻结前土体产生的膨胀是盐胀,试样冻结后产生的膨胀是盐胀和冻胀,当土体达到-15℃以后,土体盐胀和冻胀趋于稳定。（2）硫酸钠含量不变的情况下,随着含水量的增大,其起胀温度降低。土体起胀温度取决于土体中硫酸钠析水结晶温度、硫酸钠结晶含量的多少、土体结构、内摩阻力、粘聚力、土颗粒间的引力、土体孔隙间和孔隙接触间吸收结晶硫酸钠的程度。（3）硫酸钠含量增加,其单次盐胀和冻胀率变化区间增大。  相似文献   

甜瓜种子萌发和幼苗生长对NaCl胁迫的响应   总被引：19，自引：7，他引：12  

陈年来  马国军  张玉鑫  王春林 《中国沙漠》2006,26(5):814-819

在盆栽条件下研究了NaCl胁迫对黄河蜜和白沙蜜甜瓜种子萌发和幼苗生长的影响。结果表明:NaCl胁迫对甜瓜种子吸水和累计发芽率影响较小,但明显延缓后期吸水和发芽进程。50 mmol·L-1以上NaCl浓度下,甜瓜种子相对发芽指数、相对活力指数和胚根生长量均下降。NaCl胁迫抑制甜瓜幼苗高度、株叶面积增长和干物质积累,抑制作用具有浓度和时间依赖性。NaCl胁迫对甜瓜幼苗形态生长的抑制作用强于对物质积累的抑制作用,对根系干物质积累的抑制作用高于对地上部干物质积累的抑制作用,对白沙蜜的抑制作用强于对黄河蜜的抑制作用。甜瓜种子和幼苗能适应的临界NaCl浓度在100~150 mmol·L-1之间,厚皮甜瓜可能更适合作为咸水灌溉和盐碱地生产的经济作物。  相似文献   

泥岩夹层对层状盐岩体中储库稳定性影响     

尹雪英  杨春和  李银平 《岩土力学》2006,27(Z1):344-348

针对盐矿常为不同岩层交替而成的互层盐岩体的基本特点,利用宏观平均意义下考虑细观弯曲效应的三维Cosserat介质扩展本构模型的FLAC3D接口程序,对湖北云应地区的ZK1075,ZK1083,ZK1099溶腔进行了计算,不仅考虑了刚度异于盐岩的泥岩对复合体弹性特征的影响,并且考虑了由于各层内部位移协调引起泥岩夹层先行破损,进而引起复合体变形和破坏。计算结果表明,云应地区的层状盐岩体中的刚度、强度较大的泥岩夹层对层状盐岩复合体具有强化作用,对盐岩溶腔造腔后的稳定性有利。  相似文献   

石油钻井工程中岩层蠕变速率及蠕变参数分析     

陈锋  唐代绪  杨春和 《岩土力学》2006,27(Z1):493-496

石油勘探开发工程中,盐膏岩层及含膏泥岩由于具有较低的渗透特性,往往是大型油气藏的封闭层。由于盐层具有较大的流变特性,盐层钻井技术成为钻井工程中的重大技术难题。通过对某一勘探井盐岩层及含膏泥岩井眼不同时间间隔下的井眼测试,获得了井眼地层盐岩及软泥岩等岩层的蠕变速率。采用幂指数流变本构模型对盐岩及软泥岩的蠕变速率进行了分析,通过反演获得了该地质区块盐岩及软泥岩的蠕变参数。该参数能进一步用于对盐岩钻井过程中钻井液密度的优化分析中。  相似文献   

4A沸石分子筛对KNO3和NH4NO3的吸持作用     

郑红  张蓓蓓  马鸿文  王军玲  姜浩  彭辉 《现代地质》2006,20(4):663-667

实验研究了4A沸石分子筛经熔融盐处理后对KNO₃和NH₄NO₃的吸持作用。结果表明：在实验条件下,KNO₃处理后的4A沸石中含钾(以K₂O计)15.01%,含NO^-₃ 9.23%;NH₄NO₃处理后的4A沸石中含NO^-₃ 10.78%,含NH⁺₄ 0.94%。熔融盐处理后的样品X射线衍射峰相对强度发生了变化,红外光谱中1 640 cm^-1附近水的吸收带强度减弱,1 390 cm^-1附近出现的NO^-₃离子的强吸收带及825 cm^-1附近出现的NO^-₃离子的弱吸收带,以及热重-差热曲线中KNO₃和NH₄NO₃的热失重和分解热效应均证明沸石中吸持盐的存在。处理后4A沸石分子筛的基本骨架结构没有被破坏,吸持盐的4A沸石对营养盐的储备大大提高,是潜在的缓释肥料。  相似文献   

Gas-Phase Formation of Water-Soluble Organic Compounds in the Atmosphere: A Retrosynthetic Analysis     

Betty K. Pun  Christian Seigneur  Daniel Grosjean  Pradeep Saxena 《Journal of Atmospheric Chemistry》2000,35(2):199-223

Atmospheric particles contain a myriad of organiccompounds, including many multifunctional,water-soluble organic compounds. Many of thesecompounds are postulated to be secondary of origin. This work investigates the possible precursors ofseveral classes of multifunctional, water-solublesecondary organic compounds by analyzing the pathwaysleading to their formation, based on known gas-phasereactions. The analysis is termed `retrosynthetic'due to the backward direction of the analysis, fromproducts to precursors. Pathways for multi-functionalcompounds were generated combinatorially, consideringthe formation of one functional group at a time.Many multifunctional organic compounds with carboxylicacid, carbonyl, and hydroxy functional groups werefound to be first- or second-generation products ofcommon anthropogenic and biogenic volatile organiccompounds such as alkanes, alkenes, aromatics, andcyclic alkenes. The estimated yields of water-solubleorganic compounds from primary precursors ranged fromless than 1% to over 10%, based on stoichiometricconsiderations. The SOA formation index, whichcombines the concepts of yields and rates, was used tocompare the feasibility of the retrosyntheticpathways. Many of the candidate pathways involve theisomerization reaction of alkoxy radicals andoxygenated intermediate products such asmonocarboxylic acids and hydroxyaldehydes.  相似文献   

Determination of thermal maturity and organic matter type by principal components analysis of the distributions of polycyclic aromatic compounds   总被引：1，自引：0，他引：1  

Michael A. Kruge 《International Journal of Coal Geology》2000,43(1-4)

The thermal maturity and organofacies sensitivity of polycyclic aromatic compound (PAC) distributions was explored by examination of the aromatic fractions of solvent extracts from a diverse set of 53 shales, coals and kerogen macerals which have undergone either natural or artificial maturation and which represent all three principal sedimentary organic matter (OM) types. Systematic changes with maturation were observed in the following groups of isomers: tri- and tetramethylnaphthalenes, methyl- and dimethylphenanthrenes, methyl- and dimethyldibenzothiophenes, methylpyrenes, and methylchrysenes. The maturity differences were quantified by mathematical ratios of the relative concentrations of the more thermally stable isomers to the less stable, on the basis of theoretical considerations and empirical observations. The PAC maturity parameters, unlike those derived from saturated biomarker stereoisomers, are typically effective across the entire oil generation window. To compensate for the effects of OM type on the maturity parameters, they were combined using principal components analysis. The resulting first principal component was in good agreement with independent indicators of maturity. The relative distributions of C₀–C₃ alkylphenanthrenes, dibenzothiophene, methyldibenzothiophenes and methyldibenzofurans were evaluated by a separate principal components analysis. The results permitted an independent grouping of the samples by OM type and suggested additional, simple molecular ratios that allow graphical recognition of OM type, including the ratio of dibenzothiophenes to dibenzofurans and a ratio using C₂-alkylphenanthrene isomers.  相似文献   

坚持地质勘查 加快成果转化 创办新型产业     

Liaoning Chemical Geology Prospecting Institute 《化工矿产地质》2000,22(2):111-114

辽宁化工地质勘查院充分利用自身找硼的技术优势 ,从多渠道广泛吸收地质勘查资金 ,争取到并完成了 5个社会地质项目。为加速地质成果转化 ,适时地把握住机遇 ,克服重重困难 ,经必要的商业包装 ,慎重选择合作伙伴 ,在相关领导的支持下 ,成功创办了勘查开采一体化的新地勘企业长茂矿业有限责任公司。同时 ,加大改革力度 ,通过机构改革、精干地质找矿专业队伍、成立物业公司等方面工作及加大科学管理力度 ,积极推进事转企的过渡。在工程勘察及其它多种经营方面 ,又上了一个新的台阶。  相似文献   

盆地流体中有机组分的成矿效应   总被引：12，自引：0，他引：12  

刘建明  叶杰  刘家军  谭骏  朱和平 《矿物岩石地球化学通报》2000,19(3):141-148

盆地流体含有丰富的有机组分。有机质-金属耦合作用是盆地流体金属成矿机制的关键,具有极其重要的意义。有机质的成矿作用主要表现为：1)沉积有机质对盆地流体物理化学特征的制约;2)有机组分对金,属成矿元素在盆地流体中的迁移能力、迁移形式以及沉淀就位机制的制约;3)富有机质的地层作为地球化学还原障和H2S障对于流体中金属沉淀就位的制约;4)沉积有机质的演化对于盆地流体运移的制约(通过油气的阵发性析出和二次孔隙的产生)。  相似文献