大庆油田杏1-3区三次加密试验区剩余油分布研究

通过对试验区近年完钻的检查井各单砂层水淹状况及其影响因素的分析。利用神经网络模式识别方法建立起单层剩余油识别模型，在此基础上对三次加密试验区各小层剩余油分布进行研究，总结出各类油层剩余油分布特征及成因类型，并分析了试验区剩余油潜力分布，从而为三次加密布井及射孔方案编制提供了可靠的依据。     

长庆上古生界气层CO2增能压裂工艺

长庆上古气藏物性差,压力系数低,水锁伤害大,采用常规水力压裂,入井液返排困难,气井产量低。在储层改造地质研究的基础上,通过对CO2泡沫压裂技术进行室内攻关,引进开发了CO2泡沫压裂酸性交联技术,优化了CO2泡沫方案设计及现场施工工艺,配套了CO2增能压裂工艺技术。经过现场应用,充分说明了CO2增能压裂是一项行之有效的工艺技术,对于提高单井产量和长庆气田整体开发水平都是有益的。     

单站被动定位及光电实现

目的　光电技术实现的单站被动定位具有重要的军事价值 ,本文介绍了其原理、方法和发展 .方法　本文中 ,单站被动定位分为激光和红外两部分内容讨论 .结果　明确了采用激光和红外技术的单站被动定位工作原理和存在的技术难点 ,同时 ,指出了被动定位的研究动向 .结论　文章表明单站被动定位及光电实现值得进一步研究 .     

Determination of gust action stress cycle counts for fatigue checking of line-like steel structures

The classical spectral analysis of structural response to a gusty wind is applied to the prediction of fatigue damage as expressed by the rate of accumulation of Miner's quotient, using the rainflow algorithm to establish stress-range cycle counts. A general solution in chart form is given for the effect of the broad-band (quasi-static) part of the response spectrum, together with an algebraic formulation for its combination with the effect of narrow-band (quasi-resonant) response.A procedure for integration of the long-term expectation of Miner's quotient is indicated. It is concluded that quasi-static response alone is unlikely to pose a serious fatigue problem. With generally anticipated levels of dynamic response, fatigue damage is greatly increased, but can be controlled at acceptable levels by care to avoid features especially sensitive to fatigue.     

基于参差距离的相位差变化值的解模糊方法研究

利用相位差及其变化率对辐射源进行定位是新近提出的一种快速单基无源定位方法。本文分析了利用相位干涉议得到的相位差变化值的相位模糊特点,提出了一种利用相位干涉仪的接收天线之间的参差距离对相位差变化值进行解模糊的方法,讨论了正确解模糊的条件和范围,并给出了仿真结果。     

Experience with Siberian Centralized Dispatch Regulation regarding location determination of damages sustained by intersystem high-voltage transmission lines

A set of measures that can be implemented by the Relay-Protection and Automated-Equipment Service for Centralized Dispatch Regulation (CDR) in Siberia to determine the location of damage sustained by inter-system 550-and 220-kV transmission lines maintained by the United Power System (UPS) of Siberia, and the methodology and technology of damage-location determination (DLD) are described. The damage sustained by the 500-kV high-voltage lines (HL), and the accuracy of DLD relative to zero-sequence emergency parameters are analyzed statically. __________ Translated from élektricheskie Stantsii, No. 5, pp. 59–62, May, 2006.     

从销钉起家的“正业电子”

本文介绍了参观“正业电子有限公司”的概况。     

Development of cable fault location method using fiber optic distributed temperature sensor

When ground-fault problems occur on a cable line, immediate fault location and restoration are required. Therefore, various new methods to locate the fault point instantaneously have been investigated to replace such conventional methods as the Murray loop method and the pulse radar method [1]. These methods require a long time to locate the fault point. One possible fault location method is to sense the temperature rise following a ground fault using a fiber optic distributed temperature sensor. Application of this method was found feasible through sensing the temperature rise at a ground-fault test using a thermocouple as a temperature sensor with test cables [4]. A power/optical composite cable was prepared experimentally and after verifying its thermal mechanical performance, the temperature rise at an incidence of a fault was determined and the anticipated performance was demonstrated in a ground-fault test. This article describes the outline of the test.     

H.323话机主叫方物理地址定位的研究

本文提出了一套应、救急系统对H．323话机发起的呼叫定位其主叫物理地址的方案。方案分两部分内容：H．323网关对主叫物理地址的获取以及SS7信令对该地址的传输,本文详细阐述述了为实现这两部分内容而对相关协议流程所作的修改与补充。     

手持式GPS测量在地球化学勘查中的应用

在大比例尺的化探测量中，用GPS单点绝对定点技术来进行测网的布设，减少了控制测量环节。降低了生产成本。因此，GPS绝对定点在化探测量中仍有应用的前景。但是，绝对定位时必须做到：(1)合理选择校正的控制点(三角点或四角点)；(2)正确校正参数；(3)定期地检测仪器；(4)保证仪器的高度角和有效工作时间。本次该方法应用在化探的测网布设中。实测面积7km^2，经传统测量仪器检查验收，证明文中提出的方案完全可以用于生产实践。