松辽盆地宋站地区沙河子组储层砂体特征与分布预测

为了有效预测宋站地区沙河子组有利储集层,依据岩心、测井、地震以及其他分析测试等资料,并结合前期沉积相研究的认识,对沙河子组储层岩石类型、物性、含气性以及地球物理响应特征进行了研究。研究区沙河子组储层岩石类型主要为砂砾岩,孔隙度一般小于10%,渗透率普遍小于1×10-3μm2,认为沙河子组砂砾岩为低孔—低渗型储层。研究发现:区内主要发育的辫状河三角洲和扇三角洲两种沉积相带均可作为有利储集相带,其发育的砂砾岩体普遍含气,且砂砾岩厚度越大,其产气能力越强,表明沉积环境和砂砾岩厚度是影响储层发育的关键因素。并通过地震反演等技术对研究区砂体厚度和平面展布进行预测,提出研究区有利储层分级划分方案。     

X-Mode Frequency Modulated Density Profile Reflectometer on EAST Tokamak

An extraordinary-mode(X-mode) frequency-modulated continuous-wave(FMCW) profile reflectometer has been built on EAST.In the reflectometer,continuous waves with frequency sweeping from 12.5 GHz to 18 GHz were generated through a Hyperabrupt Tuned-varactor Oscillator(HTO) source and a four times active multiplier was used to increase the frequency to V-band(50 GHz to 72 GHz).The polarization of horn lens antenna is perpendicular to the magnetic field line at the edge plasmas.According to the V-band frequency range and polarization,the system cover density range from 0.5 × 1019m 3to 3.0 × 1019m 3(when toroidal magnetic field is 1.8 T),with time resolution of 12.5 ~ 50 μs.The density profile could be calculated by assuming the edge profile through an empirical equation.The maximum spatial error deduced by the method is about 4 cm.This reflectometer has been successfully applied in 2010 autumn EAST campaign,the temporal evolution of density profiles was acquired during the low confinement mode to high confinement mode transition.The density pedestal of EAST Tokamak was observed and the top value and gradient of the density pedestal were estimated.     

计算机监控在发酵过程中的应用

一、在发酵过程中要解决的问题———必须要有一个较好的温控系统目前，国内啤酒厂大都引进国外啤酒发酵新技术，由原来传统的旧式池子发酵改为露天圆型锥体发酵罐发酵，但由于锥罐存在罐保温性能差、冬夏季节差、冷媒温度及压力变化、温度传感器安装位置及插入长度不同、...     

嵌入式实时操作系统pSOSystem及其开发环境pRISM＋

本文介绍了嵌入式实时操作系统ｐＳＯＳｙｓｔｅｍ的系统结构、软件模块、系统调度策略及其集成开发环境ｐＲＩＳＭ＾＋的软件硬件开发工具。     

迎接数字时代对印前企业的挑战

计算机技术和数字技术的发展,给印刷企业带来了新的机遇和挑战,传统的印前、印刷和印后各个环节和工艺面临巨大的冲击。     

Comparison of methods for turbulence Doppler frequency shift calculation in Doppler reflectometer

The Doppler reflectometer(DR), a powerful diagnostic for the plasma perpendicular velocity(u⊥) and turbulence measurement, has been widely used in various fusion devices. Many efforts have been put into extracting the Doppler shift from the DR signal. There are several commonly used methods for Doppler shift extraction, such as the phase derivative, the center of gravity, and symmetric fitting(SFIT). However, the strong zero-order reflection component around 0 k Hz may interfere with the calcula...     

建筑设计中传统文化的思考

现代文明离不开传统文化的积累,研究传统文化的目的是为了加深传统文化的了解,继承传统文化中有益的部分,更好地用于现时文化的发展.建筑文化要发展,也只有以地理环境,社会环境为基础,不断地总结和发展传统文化.才能健康发展.     

客户用电安全服务的实践与探索

随着城市配电网的不断完善,客户端用电设备健康水平高低已成为配电网安全运行的重要影响因素。供电企业根据自身特点,针对不同的客户群体采取差异化服务的方式,在加强客户用电安全服务、提高供电可靠性方面进行了有益的探索．在保障配电网安全运行的同时也赢得了社会和客户对供电服务的认可。     

基于太赫兹量子阱光电探测器的成像技术研究进展

太赫兹(THz)波对非极性材料有较好的穿透性,对生物医学组织无电离效应,因而非常适合无损检测、生物医学成像等应用。THz量子阱光电探测器(THz QWPs)具有响应速度快、响应率高、噪声等效功率低、体积小的特点。相较于其他探测器,THz QWPs作为成像系统接收器时,系统具有成像分辨率高、成像速度快、成像信噪比高、结构紧凑等优势。本文综述了基于THz QWPs的成像研究进展,并对成像系统核心指标的影响因素进行了分析和总结。采用更稳定的装置固定THz QWPs,提升器件响应速度、探测灵敏度、阵列规模,可以有效提升系统各项核心性能。     

The Design of the Plasma Control System in KTX

KTX(Keda Torus for eXperiment)is a new reversed field pinch device.The KTX plasma control system(PCS)can provide real-time,stable,flexible plasma control which is designed by ASIPP(Institute of Plasma Physics,Chinese Academy of Sciences),based on the Linux cluster system and EPICS(Experimental Physics and Industrial Control System)framework,and developed from DIII-D(Doublet III-D)PCS.The control of the equilibrium field in KTX uses a PID(Proportional-Integral-Derivative)feedback controller.The control of the gas injection is an open loop control.The plasma control simulation system is one part of the plasma control system,which is used to test the plasma control algorithm if it is revised and updated.The KTX PCS has been successfully tested using HT-7(Hefei Torus 7)experiment data in simulation mode.In the next phase,an error field feedback control and KTX simulator will be added to the KTX PCS,and the KTX PCS will be applied in experiments in the future.