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81.
陈金荣 《江汉石油职工大学学报》2012,(4):3-5
长期以来,江陵凹陷油气勘探以深层新沟嘴组和白垩系为重点,对荆沙组地层未作系统分析与评价,其基本成藏条件研究不深入,勘探潜力不明确。近期沙26-8井在荆沙组的钻探取得重大突破,明确荆沙组具有一定的成藏条件,使得荆沙组成为研究重点和储量增长新的勘探目的层。 相似文献
82.
保山盆地永铸街气田沉积物源分析 总被引:3,自引:0,他引:3
根据研究区的基本资料和相应成果,在分析保山盆地基本构造格局的基础上,发现因保山盆地主控断层的西边在盆地演化过程中一直处于隆升状态,从而造成不同地带砾岩的分布和含量存在差异,在钻测井、地震资料中的体现也不相同.通过多种方法对永铸街气田的主物源方向进行论证后,认为永铸街气田的物源来自西边. 相似文献
83.
Rare Earths, Trace Element Characteristics of High-Mg Volcanic Rocks of Yixian Formation in Sihetun West Liaoning Province and Its Apocalypse 总被引:3,自引:1,他引:3
The high-Mg volcanic rocks of the Yixian Formation in the Sihetun area have the obvious characteristics of mantle-derived lava in rare earth, trace element characteristics with high Mg# (62~70) and high content of compatible elements. In the meantime, the volcanic rocks also have the obvious characteristics of Crust-source material in rare earth, trace element characteristics with high ∑REE (158.78×10-6~359.66×10-6), high (La/Yb)N (14.61~29.60), high La/Nb(2.37~7.52) and high Ba/Nb(67.58~205.96), obvious positive anomaly of Pb and negative anomaly of Nb, Ta in trace element spider-gram. In Sr-Nd-Pb isotope the (87Sr/86Sr)i ratio is higher than 0.706 and the εNd(t) ratio is from -3.4 to -13, both reflect enriched Mantle characteristics. The characteristics above of the volcanic rocks combined with the content of Sr, Ba, Y, Yb and the ratio of Sr/Y show that the volcanic rocks have the property of the Sanukite rocks in Setouchi Japan beside subduction zone, and illuminate that the Sanukite rocks can be formed not only in island-arc near subduction zone but also in intro-plate. The analysis indicates that the high-Mg volcanic rocks in the Sihetun area result from the collective function of mantle-derived lava and crust-source materials. The result illuminates that the West Liaoning region is very special in tectonic geochemical background in Cretaceous in East China, and is an ideal region for us to further study the characteristics of magmatic activity as well as the process of Crust-Mantle interaction in Eastern China. 相似文献
84.
介绍了利用地震资料预测地层破裂压力的方法。该法主要是先从地震资料中提取地层速度 ,然后预测地层孔隙压力 ,在此基础上按一定的模式进行地层破裂压力的预测。该方法在塔里木和吐哈油田两个构造上应用 ,预测精度达 90 %以上 ,能满足工程需要。 相似文献
85.
A distributed motion coordination strategy for multiple nonholonomic mobile robots in cooperative hunting operations 总被引:1,自引:0,他引:1
Hiroaki 《Robotics and Autonomous Systems》2003,43(4):257-282
This paper presents a distributed smooth time-varying feedback control law for coordinating motions of multiple nonholonomic mobile robots of the Hilare-type to capture/enclose a target by making troop formations. This motion coordination is a cooperative behavior for security against invaders in surveillance areas. Each robot in this control law has its own coordinate system and it senses a target/invader, other robots and obstacles, to achieve this cooperative behavior without making any collision. Each robot especially has a two-dimensional control input referred to as a “formation vector” and the formation is controllable by the vectors. The validity of this control law is supported by computer simulations. 相似文献
86.
鄂尔多斯分地西缘延安组层序地层划分 总被引:1,自引:0,他引:1
利用层序地层学基本原理,对小(准)层序进行了重新定义,它既可以是向上变浅的层序,也可以是向上变深的层序;根据构造作用面、煤层或煤组具有的等时性,对鄂尔多斯地盆地西缘侏罗纪延安组进行了层序地层研究,划分为21个小层序,5个小层序组,组成了三个体系域;初始充填体系域主要由辫状河沉积体系组成,超覆充填体系域由曲流河——三角洲——浅湖沉积体系组成,退覆充填体系域由曲流河——三角洲沉积体系组成.表明它是一个完整的三级层序,经历了盆地形成、发展、萎缩的过程. 相似文献
87.
Advantageous shale lithofacies of Wufeng Formation-Longmaxi Formation in Fuling gas field of Sichuan Basin,SW China 总被引:1,自引:0,他引:1
《石油勘探与开发》2016,43(2):189-197
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90.
《Journal of Materials Processing Technology》2014,214(4):979-987
Dissimilar linear friction welding of Ti–5Al–2Sn–2Zr–4Mo–4Cr with bimodal and lamellar microstructures was produced. The microstructure evolution of the joint was investigated via OM, SEM, XRD, TEM and microhardness analysis. The temperature field of joint was calculated by a numerical model. The typical microstructures of weld center were recrystallized β grains with some acicular α′′ martensites. In the case of thermo-mechanically affected zone, some partial re-crystallization grains formed in severely deformed microstructures, where a mass of dislocations were observed. However, dislocations were rarely found in the recrystallized β grains of weld center, the temperature field of weld joints calculated was consistent with the microstructural evolution. 相似文献