濮城油田东西区沙二下顶面微构造特征与剩余油分布

濮城油田沙二下是一个被断层复杂化了的断块型油气藏，通过对储层的精细描述表明，各砂岩组顶面微构造发育，其成因有2种，与构造作用有关的微构造及与构造作用无关的微构造，前者规模较大，后者规模通常较小，根据微构造的起伏变化和形态，可分为3类：正向微构造，负向微构造，斜面微构造，正向微构造是油气富集与控制剩余油分布的重要微构造。     

广州地铁一号线隧道结构变形监测及成果分析

介绍了广州地铁一号线运营以来的全线隧道结构变形监测 ,分析了隧道结构的安全状况和各种变化规律 ,并对其变形原因进行有益的探讨     

局部设有钢筋砼电梯井墙的设计探讨

本文就局部设有钢筋砼电梯井的工程计算及理论分析，阐明分析了少墙的框剪结构的设计及注意问题。     

全球趋向统一的《粉末冶金零件材料规范》

评述了ISO 5 75 5“烧结金属材料—规范”和美国MPIF标准 35的变迁和趋向统一。阐述了“最小强度值”的意义。说明了我国粉末冶金结构零件材料标准的现状     

井下沉砂器的研制与应用

针对以往机械防砂工艺存在防细砂困难、造价高和重复利用率低等缺点 ,根据旋流 离心分离原理 ,研制了井下沉砂器。沉砂器由上接头、二级滤砂管、筒体、中间接头、造旋臂、旋流体和下接头组成。中原油田分公司第五采油厂 2 2井次的现场应用表明 ,这种沉砂器可以分离大于 0 0 0 5mm粒径的细砂 ,防砂效果好 ,具有结构简单 ,安装方便 ,加工成本低的特点 ,可以保证出砂井的正常生产 ,延长检泵周期 ,节省作业费用     

复合式水力旋流器油水分离实验研究

复合式水力旋流器将动态与静态旋流分离技术有机地结合在一起 ,具有动态与静态水力旋流器的双重优点。这种旋流器由动力组件 (包括电动机、空心驱动轴、旋转栅及溢流嘴等 )、静态旋流单体、入口腔、底流腔及溢流腔等部分组成。对额定处理量为 8m3/h样机的分离特性测试表明 ,当电动机驱动轴转速低于 30 0 0r/min时 ,入口压力为 0 10～ 0 35MPa ,底流压差为0 0 5～ 0 2 0MPa ,处理量为 3～ 10m3/h ,选用单螺杆泵增压和离心泵增压两种方式 ,分离效率分别为 97%和 84 % ,均取得满意的分离效果。     

测井新技术在四川油气勘探开发中的应用

综述随着四川盆地油气勘探深入所面临的油气领域复杂和困难的技术问题，介绍应用测井新技术为四川油气开发解决了大量的技术难题，特别是在复杂缝，洞型储层的评价，井旁地质构造形态精细分析和地质，测井，地震多学科结合储层横向预测等3个方面所取得的良好应用效果。     

The suitability of round clinching tools for high strength structural steel

The use of light gauge steel framing is increasing rapidly. New methods for joining frames are being sought. One of the most promising methods is clinching. Clinching has been used for almost 20 years. There has been much research into the method, the tools, suitable materials and applications. Few articles have been published concerning clinching of high strength structural steels, which are currently the most relevant materials for house construction.This study included 11 different clinching methods. In total, 469 test pieces were produced. Despite the high strength of the materials, all the clinching methods that were examined could be used satisfactorily. The most significant result was that a round tool is appropriate for all the materials tested. In fact, in comparison with results obtained using other types of tool, when the methods were ranked by maximum shear load capacity, the round design appeared in the top three classes seven times out of nine.     

Pruning Redundant Alarm Correlation Patterns

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Simulation of Strength Distribution in Ground Ceramics by Incorporating Residual Stress Effect

Strength of ground ceramics may be affected by residual stress as well as surface flaws induced by grinding. Strength prediction for ground ceramics is convenient for mechanical design of ceramic components. In this article, a numerical procedure based on fracture mechanics was proposed to estimate strength distribution of ground ceramics by considering grinding-induced residual stress. Bending strength and residual stress of ground ceramics were measured for three grinding-conditions. By comparison of simulated results with experimental ones, it was revealed that strength characteristics in experiments were well simulated by using the proposed procedure.