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- open flow pressure [经] 放喷压力
- For volumetric gas reservoir,gas well absolute open flow(AOF) is reduced with the decrease of formation pressure. 对于定容气藏,气井的绝对无阻流量随地层压力的下降而降低。
- If water cone happens,absolute open flow will be decr... 若发生水锥,无阻流量比产水前降低得更多。
- The gas starting pressure phenomenon can cause the open flow capacity of gas well to be decreased , the abandonment pressure of gas reservoir increased and the recovery factor of gas reservoir dropped. 气体启动压力规律的存在使气井的无阻流量变小、气藏的废弃压力提高 ,造成了气藏采收率的降低。
- This paper shows that there exists structure of inco-mmensurable temporal and spatial periods in open flow Lattice. 指出了在开流格点中,存在着时间空间不可约周期结构。
- This paper introduces the method of casing pressure drop which can be used to measure pump inlet pressure and flow pressure at well bottom. 阐述了套压降低法测泵口压力和井底流压的基本原理、测试方法以及相关的资料处理和计算方法。
- The results showed: The cooling had significant influence on the near wall flow pressure, and the influence was different with cooling schemes. 结果表明:冷却气流对喷管壁面压力分布影响较大,不同冷却结构的壁面压力分布特点不同。
- Water profiles, velocities and net space areas at open flow segments are computed too. 对明流段的计算得到了水面线、流速及净空等水力学要素。
- Critical flow pressure reflects the impact of capillary pressure and boundary effect and gas percolation, and causes non-Darcy gas flaw. 临界流动压力反映了毛细管力与边界层作用对气体渗流的影响,并使气体表现出非达西渗流特征。
- Second, the open flow of new scenic spots: a major new stream ancient cultural sites, water park, a large Xingkai Lake foreshore beach. 二是新开流景区:主要以新开流古文化遗址、水上乐园、大兴凯湖滨浴场构成。
- Pressure mould former has its special characteristics developed by our company. It depands on the pulp flow pressure and quickly dewatering in forming zone. 压力圆网成型器是本公司开发的一种很有特点的园网成型器。它主要依靠浆流本身的压力,在成形区内快速脱水成形。
- Palace, it is on the wall, built the coral and high window is bright, but the spire of amber roof is black, they automatically open flow. 它的墙是用珊瑚砌成的,它那些尖顶的高窗子是用最亮的琥珀做成的;不过屋顶上却铺着黑色的蚌壳,它们随着水的流动可以自动地开合。
- Independent of flow pressure change and temperature change in a given range, MFC/MFM show the excellent repeatability, controllability and wide operating pressure range. MFC/MFM具有不因温度和压力的波动而失准,重复性好,自动测量控制,工作压力范围宽等特点。
- Index equation and binomial expression are the main methods to determine the absolute open flow capacity of a gas well at present. 目前确定气井绝对无阻流量的方法主要是指数式和二项式。
- A concept of “gas flow pressure"is proposed and the existance of the pressure in ventilation network in gassy mines is demonstrated in theroy and in practice. 提出了“瓦斯风压”的概念,从理论、实践上论述了“瓦斯风压”在瓦斯矿井通风网络中的存在。
- Conventional application of modified isochronal testing is mainly to determine the current open flow capacity of the gas well,and thus making a reasonable working system. 修正等时试井的传统应用,主要确定气井当前无阻流量,进而制定合理工作制度。实际上,还可以根据延续生产动态资料,分析气井生产动态特征,评价稳产水平和能力;
- At last, the approximate calculation methods of pore water pressure and flowing pressure are presented. 给出土坡稳定性分析中对孔隙水压力和动水压力的近似计算方法。
- The selection of pipe wall thickness,the calculation and design key points of the melt flow,melt pipe flow pressure fall and melt flow speed in the design of melt pipes were introduced in detail. 介绍了熔体管道设计中管道壁厚选择、熔体流量、熔体管道流动压力降和熔体流速等计算方法和设计要点。
- IPR curve is a kind of characteristic curve deseribing the basis relationship between oil well production and bot-tomhole flowing pressure. IPR曲线是描述油井产量与井底流动压力的基本关系曲线。
- The case study indicates that such a method is more reliable than before, and provides more precise bases for further open flow potential estimation and proration measures implementation. 应用实例证明了新方法是比较可靠的,为以后计算气井无阻流量和开采配产作业提供了准确的依据。