新疆北部福海地区上古生界岩相古地理

新疆北部福海地区位于哈萨克斯但古板块的北部边缘，邻接西伯利亚古板块。构造活动强烈，属岛弧及弧后盆地构造环境。上古生界沉积盆地类型不断变化，有洋盆、残留海盆地、岛弧盆地、陆缘弧盆地及陆内裂陷盆地等；岩相类型齐全，深海、浅海、滨海、三角洲及河、湖、沼泽等相均有发育。沉积相带分布复杂，同一地区多种亚相交替发育形成混合亚相带。晚石炭世，海水彻底退出，全为陆相沉积，古气候也相应发生剧变。早二叠世末期基本上结束了古生代的沉积历史，普遍缺失晚二叠世的沉积。     

Design of a nonlinear distributed parameter observer for a pressure swing adsorption plant

As an integral part of an advanced process monitoring and control scheme, the reconstruction of the spatial concentration, temperature, and pressure profiles of an oxygen production plant is studied by the design of a nonlinear observer with distributed parameters. The considered pressure swing adsorption process consists of two adsorbers and each adsorber of two layers. The design of the nonlinear observer with distributed parameters is illustrated for a single adsorption layer, which is described by six quasilinear partial differential equations and related boundary conditions. Thereby, a late lumping approach is used in order to design the injected correction functions in the observer equations and to introduce tuning parameters with a physical meaning. The observer is extended to the entire adsorption process and its simulation shows an excellent convergence behavior.     

晚三叠世末期楚雄盆地云龙凹陷海相沉积的分子地球化学证据

在楚雄盆地云龙凹陷山品村和背阴山上三叠统剖面泥质烃源岩中检出较丰富的24-正丙基C30甾烷和4-甲基C30甾院。“三芴”系列分布以二苯并噻吩绝对占优为特征,除二苯并噻吩外,还检出高含量的苯并萘噻吩系列化合物。这表明．在晚三叠世未期,云龙凹陷海相沉积环境是客观存在的。图3表1参16     

稳定性染色体畸变在远期辐射效应研究中的应用

染色体畸变分析可作为一种估算受照剂量的生物学方法,或作为指标用来评价辐射损伤。在各类染色体畸变中,以双着丝点和环较易识别,且在正常人群中极为罕见,故常被用作观察指标。但此类染色体畸变(即双着丝点或环)是不稳定的,随着受照后时间的延长,畸变率逐渐减低。这是因为含有非稳定性畸变的细胞,其结构上的缺陷,可使细胞分裂过程受到阻     

新构造运动对天然气晚期成藏的控制作用

天然气藏的形成是一个散失与聚集的动态平衡过程 ,因此晚期成藏更有利于天然气的保存。对我国中部、西部天然气成藏特征分析表明 ,新构造运动对天然气的晚期成藏起着非常重要的控制作用 ,主要表现在 4方面 :1晚期成盆有利于气源岩晚期供气 ,晚期快速沉降作用有利于气源岩的晚期快速熟化 ;2新构造运动为天然气晚期成藏提供了新的动力 ;3晚期圈闭的形成控制着天然气的晚期成藏 ;4晚期断裂的形成为浅层气晚期成藏提供了运移通道     

库车河阿艾阿仑——库台克力克侏罗系古气候及沉积环境分析

通过对库车河阿艾阿仑——库台克力克侏罗系地层特征的野外观察及沉积环境分析将阿艾阿伦——库台克力克侏罗系划分为下侏罗统阿合组、阳霞组,中侏罗统克孜勒努尔组、恰克马克组以及上侏罗统奇古组,喀拉扎组。该区经历了由亚热带、暖温带——亚热带半干旱、半潮湿——干旱炎热的亚热带型气候变化。根据沉积特征对沉积环境分析可推测阿合组主要为辫状河流沉积时期,阳霞组、克孜勒努尔组为主要的曲流河和辫状河发育期;恰克马克组为曲流河沉积时期;齐古组为湖泊发育期,而喀拉扎组由于变为干旱型气候而成为干旱气候条件下的湖泊沉积环境。     

GEOCHEMICAL CHARACTERIZATION OF POTENTIAL JURASSIC/CRETACEOUS SOURCE ROCKS IN THE SHUSHAN BASIN, NORTHERN WESTERN DESERT, EGYPT

Some 180 core and cuttings samples of shales and limestones from the Middle Jurassic – Late Cretaceous succession (Khatatba, Masajid, Alam El-Bueib, Alamein, Kharita, Bahariya and Abu Roash Formations) were collected from wells Ja 27–2, Tarek-1 and Jb 26–1 in the central, structurally-low part of the Shushan Basin and from well Lotus-1 in the structurally-elevated western part of the basin. All samples were screened for total organic carbon (TOC) content. Selected samples were then analyzed by Rock-Eval pyrolysis, and extracted for biomarker analyses. Visual kerogen analysis and vitrinite reflectance measurements were also undertaken and oil - source rock correlations were attempted. The results indicate that the thermal maturity of the samples can be correlated closely with burial depth. Samples from the central part of the basin are more mature than those from the west. Samples from the central part of the basin (except those from the Albian Kharita Formation) have reached thermal maturities sufficient to generate and expel crude oils. Extracts from the Middle Jurasic Khatatba and Early Cretaceous Alam El-Bueib Formations can be correlated with a crude oil sample from well Ja 27–2.
In well Lotus-1 in the west of the basin, four distinct organic facies can be recognized in the Jurassic-Cretaceous interval. One of the facies ("facies 4") has a sufficiently high TOC content to act as a source rock. Thermal maturities range from immature to peak oil generation, and the top of the oil window occurs at approximately 8000 ft.     

新疆三塘湖盆地侏罗系烃源岩的显微组分组成及生烃组分剖析

运用有机岩石学全岩分析方法，对新疆三塘湖盆地中、下侏罗统煤系烃源岩进行了显微组分组成与生烃组分剖析。三塘湖盆地烃源岩显微组分中富含镜质组、贫腐泥组，明显具有高等植物陆源有机质占绝对优势的特点。显微组分含量与组成在各层段中呈现均不衡性，八道湾组为该区的主力烃源岩，孢子体和角质体是煤成油的最主要的生烃组分，渗出沥青体、微粒体的出现为该区烃类生成提供了证据。     

四川盆地下二叠统,上三叠统水动力场与天然气保存

下二叠统和上三叠统储集层是四川盆地油气主力产层。在对其水动力场控制因素分析研究的基础上，对实测地层压力资料进行数据处理，分别建立了Ｐ１和Ｔ３地层压力预测模型。地层埋深，孔隙度，构造抬升率和褶皱强度等为现今水动力场的主要控制因素，其中地层埋深对地层压力的影响最大。