气云区有利构造的地球物理研究

渤中29-4构造由于＂气云＂极其发育,构造难以落实,一直没有继续钻探评价。通过应用相干体切片技术,精确识别各层段＂气云＂的分布范围,合理落实构造;亮点技术有效识别储层;地层切片技术刻画储层平面形态;最终指导勘探井位部署,获得了一个中级油气田的发现。     

2010年长江九江段洪水分析

2010年长江九江段先后发生两次超警戒洪水过程.本文通过对洪水成因分析,揭示长江流域暴雨洪水发生的区域、范围,不同流域洪水的发生与组合对长江九江段水位可能产生的影响.     

空压站控制的应用实践

根据实际情况，分析了空压站现有运行状况，介绍了喘振的产生原因及克服方法。由此，确定了补充、完善数据检测及增加设备监测与故障诊断系统方案。实践证明，此方案具有数据采集及实时保护、在线监测预报、信号分析、故障诊断、记录等功能，为系统的检测维修提供了一定的依据。     

涡流桨搅拌槽内流动非稳定性的大涡模拟

The aim of this work is to investigate the flow instabilities in a baffled, stirred tank generated by a single Rushton turbine by means of large eddy simulation （LES）. The sliding mesh method was used for the coupling between the rotating and the stationary frame of references. The calculations were carried out on the ＂Shengcao-21C＂ supercomputer using a computational fluid dynamics （CFD） code CFX5. The flow fields predicted by the LES simulation and the simulation using standard κ-ε model were compared to the results from particle image velocimetry （PIV） measurements. It is shown that the CFD simulations using the LES approach and the standard κ-ε model agree well with the PIV measurements. Fluctuations of the radial and axial velocity are predicted at different frequencies by the LES simulation. Velocity fluctuations of high frequencies are seen in the impeller region, while low frequencies velocity fluctuations are observed in the bulk flow. A low frequency velocity fluctuation with a nondimensional frequency of 0.027Hz is predicted by the LES simulation, which agrees with experimental investigations in the literature. Flow circulation patterns predicted by the LES simulation are asymmetric, stochastic and complex, spanning a large portion of the tanks and varying with time, while circulation patterns calculated by the simulation using the standard κ-ε model are symmetric. The results of the present work give better understanding to the flow instabilities in the mechanically agitated tank. However, further analysis of the LES calculated velocity series by means of fast Fourier transform （FFT） and/or spectra analysis are recommended in future work in order to gain more knowledge of the complicated flow phenomena.     

辽东湾坳陷挤压型和拉张型走滑转换带特征及其控藏作用

走滑转换带对油气成藏具有明显的控制作用,辽东湾坳陷发育的走滑转换带控制了该区大中型油气藏的形成。利用三维地震精细构造解释并结合钻探结果,将走滑转换带分为右旋左阶—挤压型走滑转换带和右旋右阶—拉张型走滑转换带,并明确了两种转换带对油气成藏的控制作用。研究认为:挤压走滑转换带可形成规模较大的背斜型圈闭,油气保存条件好,成藏深;拉张型走滑转换带油气运移条件好,成藏浅,可分为张—扭转换区、拉张调节区和走滑单控区,张—扭转换区和走滑单控区多形成背斜、半背斜圈闭,拉张调节区多形成断块圈闭。