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抽油机井生产过程仿真方法的研究 总被引:1,自引:0,他引:1
针对游梁式抽油机井的生产过程建立了以机械效率为目标函数对抽汲参数和下泵深度进行优化的数学模型,并以现场数据进行了仿真研究,结果表明,该模型对实际生产具有很好的指导作用。 相似文献
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随着油气勘探开发的不断深入,现有牙轮(钢齿、镶齿)钻头已难以对一些复杂地层进行有效的钻进。针对这一现状,西南石油学院研制开发出一种新型盘式单牙轮钻头。该钻头具有井底覆盖率高、轴承寿命长等优点,在深井和超深井小井眼钻井中有着广阔的应用前景。着重讨论了在该新产品开发过程中进行的工作行为仿真研究。在适当的假设条件之下,建立了盘式单牙轮钻头工作行为仿真模型,并在此基础上开发出盘式单牙轮钻头工作行为仿真软件。通过将仿真模型的计算结果与西南石油学院钻头研究室部分台架实验结果进行对比,验证了该仿真模型的正确性。完成了不同钻井参数、不同钻头结构和不同岩石性能等条件下盘式单牙轮钻头工作行为仿真分析,为盘式单牙轮钻头的设计提供了理论依据。 相似文献
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针对多水源供水管网系统参数多及变量间存在耦合,难以实现合理实时调度而导致水压多变等问题,提出一种基于增量模型控制压力恒定的多源供水管网系统优化调度策略. 依据用户流量参数预测建立增量模型,以分界监控点压力参数恒定为目标函数推导多水源调度策略,并调节机泵输出压力,机泵启停状态及变频机泵转速为优化决策变量. 鉴于供水系统模型的非线性和混合变量的耦合性,采用蚁群算法进行优化,引进扰动因子并修正搜索转移步长和动态挥发系数来提高全局寻优能力. 算例仿真表明,该模型和方法可快速找到优化调度的最优解,跟踪流量变化和保持监测控制节点实时压力恒定的效果好,为多水源的实时协调调度提供了好的基础. 相似文献
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《系统工程理论与实践》2014,(5)
正August 10-14,2015Beijing,ChinaThe International Congress on Industrial and Applied Mathematics(ICIAM)is the premier international congress in the field of applied mathematics held every four years under the auspices of the International Council for Industrial and Applied Mathematics.From August 10 to 14,2015,mathematicians,scientists 相似文献
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《系统科学与系统工程学报(英文版)》2014,(2)
正AF:Any Field The School of Economics and Management at Tsinghua University(Tsinghua SEM)invites applications for faculty positions at all levels(Assistant Professor,Associate Professor and Full Professor)in any fields of business administration and management.Tsinghua SEM is the only school 相似文献
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《系统科学与系统工程学报(英文版)》2014,(4)
正June 22-24,2015Guangzhou,China http://iec.cnsba.com/index.htmlCo-Sponsored by:ffiEE SMC(pending)South China University of Technology The Chinese University of Hong Kong Tsinghua UniversityHosted bv:School of Business Administration,South China University of Technology,China Conference Co-Chairs: 相似文献
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The paper is about negotiating with issues that discourage innovation. The subject is environmental deterioration, with concern directed at the impediments that keep it from being innovatively resolved. The paper is organized around three issues. (1) The dominant model of environmental concern, called environmental protection, is managed predominantly via command and control approaches. (2) Command and control, by relying on analytical segmentation to subdivide the problem into digestible bits and using formal legislation to direct it, are not up to emerging challenges in the area. (3) More robust models are available but difficult to experiment with due to impediments that discourage change. These impediments are seen in ideals associated with protection, prevention, recycling, and sustainability that tend to do more to sustain harmful practices than to seek beneficial alternatives. Being able to appreciate the underlying restrictions of entropy could help stimulate a more innovative agenda. These issues are tested via a project funded by the EPA entitled ENERGY STAR Homes. 相似文献