永8复杂断块油藏水平井地质优化设计

永8块为复杂断块油藏，若全部采用直井开发，不但井网密度大、开采时间长，而且直井防砂后产量低，开发效益不明显。水平井开发的可行性论证认为，出砂的复杂断块油藏适合用水平井开发；水平段应与大断层保持一定的距离且位于正韵律油层的中上部。采用直井和水平井相组合的布井方式，可充分发挥直井钻遇油层层数多和水平井与油层接触面积大、产量高的优势，从而提高复杂断块油藏的开发效果。     

液压集成块校核软件的编制和应用

本文叙述了液压集成块校核软件的编制思想和方法，并重点介绍了编制过程中所使用的相关技术，同时给出部分源程序。     

灰度图像的子块压缩方法

从灰度图像的局部几何特性出发，把图像中像素灰度相近或相同的区域当作一个整体处理，从而达到图像压缩的目的。计算机仿真实验表明，该方法可以获得产高的压缩比和峰值信噪比，有效地消除方块效应，很好地保持目标细节，具有较高的实用价值。     

濮城油田濮67块低渗凝析难动用气藏挖潜技术研究

濮67块具有埋藏深、物性条件差、储量难动用程度低等特点，目前气藏采出程度很低，开发效果差。通过对濮67块天然气储量再认识，落实了该块储量；通过对濮67块各砂组剩余天然气分布规律的研究，明确了剩余气的下步挖潜方向；并开展了配套的剩余天然气挖潜技术研究，通过在生产中应用，取得了较好的增产效果，提高了气藏的采收率。     

Specification methods for material-handling control algorithms in flexible manufacturing systems

Good methods are needed to specify, test, and debug material-handling control logic. This article surveys a number of representative methods for defining and describing control algorithms for programmable material-handling equipment used in flexible manufacturing systems. The methods are evaluated with regard to their suitability for communication between people and as bases for interfaces to automatic program generators. It is concluded that no single method is entirely satisfactory. Three methods (position diagrams, function block diagrams, and operation networks) have potential to be combined into an effective hybrid approach that minimizes the need for the user to switch between various conceptual models.     

Slow eroding biodegradable multiblock poloxamer copolymers

Biodegradable multiblock poloxamers (BMPs) with gel duration of 8 h to several weeks were prepared by varying their molecular weights from 4000 to 40 000 g mol^?1. The molecular weight of the BMP was controlled by changing the poloxamer to coupling agent ratio. Assuming a micelle packing model of the BMP gel, as in the case of a poloxamer gel, the micelle properties and critical gel concentration of BMPs were investigated on the basis of the scaling concept. The findings suggest that the control of molecular weight by hydrolyzable groups can be a facile approach to optimize the gel properties for biomedical applications. Copyright © 2005 Society of Chemical Industry     

MIMO系统中简单的扩展空时块编码分集技术研究

本文提出一种多输入多输出（MIMO）天线系统中简单的扩展空时块编码（SSTBC）分集技术，采用沃尔什码来区分各天线发送数据子流。采用这种方法，在系统带宽一定时，不降低发送信息速率，同时接收机简单。不同天线的发送信息经过了所有收一发天线对之间的空间子信道，获得了所有路径的部分空间分集增益，仿真结果表明，这种增益的获得不受限于接收分集阶数，并且随发射天线的增加以一定的线性关系增加。     

Role of chain symmetry and hydrogen bonding in segmented copolymers with monodisperse hard segments

Thermoplastic segmented polyurethane and polyurea copolymers whose monodisperse hard segments are based on only a single diisocyanate molecule are discussed. The solid-state structure-property behavior of these materials demonstrates that a proper selection of the level of symmetry and/or cohesiveness of the hard microdomains may allow elimination of the traditional requirement of chain extension to obtain melt processable segmented urethanes, and more specifically, urea copolymers with useful structural properties.     

面块切片解释方法应用实例探讨

面块切片是一种新的三维数据显示、解释方法，将它应用于安棚油田地震资料解释中和BBT油田识别小断层中。与常规解释方法相比，不仅大大提高了地震资料的解释效率，而且在识别小断层和小构造方面效果明显。     

交联聚合物驱油技术研究及应用

交联聚合物驱油技术是聚合物驱油技术的发展和改善，与单纯聚合物相比，该体系具有抗剪切、耐温耐盐、在多孔介质中阻力系数大等特点，能较大程度改善油藏非均质程度，提高原油采收率。以其作为驱油体系具有创新性，可更好地适应高含水期油藏特性，是一种集调剖和驱替于一体的新型驱油技术。文中对交联聚合物的交联机理进行了探讨，给出了室内评价结果，分析了该技术在孤岛油田渤19块的应用效果，现场应用表明，该技术增油降水效果显著，是比较理想的提高EOR的新方法。