海洋石油管线探测多波束剖面声纳设计

针对海洋石油管线探测多波束剖面声纳的高速、大容量的实时信号处理任务,以及声纳系统进一步扩展的需求,设计并实现了一种基于IP网络互连的、以并行DSP为处理节点的多波束剖面声纳系统.该系统应用于海底石油管线探测与定位,系统中的每个处理节点与数据采集转换部分采用TCP/IP网络连接,可以通过物理上添加一个或多个处理节点成倍的提高系统的信号处理能力,而在软件上无须大的改动.通过电联调与水槽试验,验证了系统的可行性和稳定性,该设计为高速水声阵列信号实时处理系统提供了一种全新的解决思路.     

太湖地区河网水体石油类浓度预测

利用完全混合系统水文动力学模型,对太湖地区河道改造后,由于船型及船流量发生变化而导致的水体石油类浓度的变化进行了预测。通过类比分析得出：预测结果基本符合实际。     

重油凝胶色谱制备样品中痕量镍的分析研究

研究表明微波密闭消解法对重油凝肢色谱制各样品的前处理，不造成易挥发有机金属化合物的损失，对样品无污染。采用消解前定容，配合石墨炉二次进样富集样品，可以测定样品中低至10^—9级的镍。方法应用于镍在渣油中随相对分子质量分布分析中，标准样品对照数据吻合好，相对标准偏差(RSD，n＝11)为8％。     

英国乡村发展政策演变及启示

诸多成功案例表明,全球化有助于加快经济发展知识与实践的国际转移,将国际知识转移至地区经济发展实践中,为地区发展战略问题提供国际上相关解决方案。英国在其乡村发展历程中也曾经历过与目前中国相类似的发展阶段并遇到相似的发展问题,涉及乡村经济的多样化转型、对新技术和市场扩张的适应和基础设施改善等方面。因此,借鉴英国解决这些问题的经验和教训有助于解决目前中国乡村发展过程中遇到的诸多问题。本文分析了英国乡村发展政策的演变及其阶段性特征,其政策变化的特点主要体现在政策制订由自上而下转向自下而上、强调政策的综合性、注重乡村发展计划的长远性和可持续性、重视运用法律和市场手段等方面,最后从政策制订、乡村发展计划的实施以及发展项目选择等方面探讨了其对我国乡村发展的政策启示。并指出,考虑到国际乡村发展政策的趋同与差异,任何国际乡村发展政策和模式的采纳均需要根据我国特殊的文化、经济、政治传统和环境予以调整。     

Experimental research on a new encapsulated heat-generating hydraulic fracturing fluid system

1 IntroductionFracturing plays an important role in increasingthe production and injection and enhancing the final re-covery of oil and gas. At present, the use of ahydroxypropyl guar gum, borate-crosslinked, hydraulicfracturing fluid systemhas become ext…     

斋桑盆地与准噶尔盆地西北缘二叠系成藏条件对比

斋桑盆地位于“一带一路”重要的沿线国—哈萨克斯坦国东北部,二叠系成藏研究相对较少.基于斋桑盆地构造演化背景,通过与邻区准噶尔盆地西北缘在构造沉积演化、烃源岩、储盖组合以及运聚模式的对比,揭示其二叠系勘探潜力.结果表明:斋桑盆地和准噶尔盆地均为板块碰撞的产物,沉积体系受断裂控制;与风城组烃源岩类型相似,麦恰特组烃源岩有机质类型以Ⅰ和Ⅱ型为主,源岩发育于高盐度、强还原性水体环境,为一套好-很好的烃源岩;但斋桑盆地二叠系储层中孔低渗,物性相对较好,且二叠系内部发育大套地层圈闭,可形成规模地层油气藏.综合对比分析表明斋桑盆地二叠系具有良好的勘探潜力.      

玄武岩发育区砂岩储层特征及控制因素:渤海南部BZ34-9区与KL6区块对比

渤海南部BZ34-9区与KL6区块位于莱北低凸起南北两侧,均发育新生代玄武岩并得到钻井证实,但储层特征差异明显.以三维地震、薄片、SEM以及X衍射等技术手段对两个区块玄武岩时空展布,沉积体系以及储层特征进行对比.研究表明,BZ34-9区构造位于缓坡带,供源速率中等.渐新世玄武岩为沉积期及准同生期喷发且位于砂体主体部位,优质层段形成白云石包壳、沸石胶结溶蚀、混层粘土包膜等成岩响应,整体对储层发育发挥积极作用;KL6区构造近物源,供源强烈,渐新世玄武岩发育在凹陷内部,对砂体影响有限,储层以高岭石及碳酸盐胶结充填为特征,在成岩期受郯庐断裂带岩浆热液影响,绢云母、菱铁矿重结晶等现象普遍.对比分析表明玄武岩对储层的影响受控于火山喷发时机、物源供给速率、砂体及火山岩配置关系等因素.      

Calibration of LRFD Format for Steel Jacket Offshore Platforms in China Offshore Area （ 1 ） ： Statistical Parameters of Loads and Resistances

1 .IntroductionThe structural design method has evolvedfromthe workingstress method,damage stage methodtolimit state method.The more recent probabilisticlimit state design method,whichis based onreliabili-tytheory,has beengenerallyacceptedinthe designcode…     

Decomposition analysis on direct material input and dematerialization of mining cities in Northeast China

Material dematerialization is a basic approach to reduce the pressure on the resources and environment and to realize the sustainable development. The material flow analysis and decomposition method are used to calculate the direct material input (DMI) of 14 typical mining cities in Northeast China in 1995-2004 and to analyze the demateri-alization and its driving factors in the different types of mining cities oriented by coal, petroleum, metallurgy and multi-resources. The results are as follows: 1) from 1995 to 2006, the increase rates of the DMI and the material input intensity of mining cities declined following the order of multi-resources, metallurgy, coal, and petroleum cities, and the material utilizing efficiency did following the order of petroleum, coal, metallurgy, and multi-resources cities; 2) during the research period, all the kinds of mining cities were in the situation of weak sustainable development in most years; 3) the pressure on resources and environment in the multi-resources cities was the most serious; 4) the petro-leum cities showed the strong trend of sustainable development; and 5) in recent years, the driving function of eco-nomic development for material consuming has continuously strengthened and the controlling function of material utilizing efficiency for it has weakened. The key approaches to promote the development of circular economy of min-ing cities in Northeast China are put forward in the following aspects: 1) to strengthen the research and development of the technique of resources' cycling utilization, 2) to improve the utilizing efficiency of resources, and 3) to carry out the auditing system of resources utilization.