1)barrier-discharge阻水流量
1.First,the mechanism of local head loss is clarified from the theory of plane flow and vortex;and the relationship between local head loss coefficient and barrier-discharge of pile permeable groins is derived.首先,应用平面绕流与旋涡理论阐明其局部水头损失的机理,导出了桩柱透水丁坝局部水头损失系数与阻水流量的关系式。
2)coefficient of obstructed-discharge distribution阻水流量分配系数
3)absolute open flow无阻流量
1.The absolute open flow of natural gas wells is an important index reflecting the potential productivity of gas wells and an important basis to determine the yield of gas wells scientifically and rationally.天然气井绝对无阻流量是反映气井潜在产能的重要指标,是科学、合理地确定气井产量的重要依据,该指标目前广泛采用一点法产能试井方法来确定,而一点法产能试井资料的解释普遍采用经验方法。
2.The BP artificial nerve network method is only in want of the primary data of the target gas well when forecasting absolute open flow and much practical testing data of a few gas wells as the samples in the same reservoir.与现在流行的求取压裂气井无阻流量的方法相比,BP人工神经网络方法具有极大的优越性和适用性,它勿需考虑压裂后气井的复杂渗流规律,也不需数值模拟。
3.Absolute open flow is a important index of appraising oil/gas well production capacity,and often used in oil/gas well classification、proration and dimensionless parameters in other equations and so on,it denotes oil/gas productions under full openness of well bottom.无阻流量是评价油气井生产能力的重要指标,也常用于油气井分类、配产和其它公式中参数的无因次化等,它表示井底在完全敞开的情况下油气井的产量。
英文短句/例句
1.Calculation and Application of Absolute Open Flow of Horizontal Gas Wells水平气井无阻流量的计算方法及应用
2.The Calculation of AOF of Gas Well Based on Non-linear Least Squares Method基于非线性最小二乘法的气井无阻流量计算
3.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。
4.THE STUDY OF SINGLE POINT TEST APPLICABILITY'S CONDITION ON QD GAS FIELD气井无阻流量计算一点法在QD气田的适用条件研究
5.Gas well productivity is important is an important method for determination of ripen flow potential and working system, prediction of prediction performance and study of related gas reservoir engineering.气井产能评价是确定无阻流量和工作制度、预测生产动态及其它气藏工程研究的重要手段。
6.The horizontal well productivity test is mainly to obtain the productivity equation and absolute open-flow capacity, and to select nozzle for production.水平井产能试井主要是求取产能方程和绝对无阻流量，优选生产油嘴。
7.Work on new superconductors, materials that can transmit electricity with very little resistance, thus preserving the amount used.对新型超导体研究，该材料几乎能无阻力地传递电流，维持使用的量。
8.dashpot rotameter带阻尼器的旋转流量计
9.d.c. bridge for measuring resistance测量电阻用的直流电桥
10.thermistor fuel flowmeter热敏电阻式燃油流量计
11.A New Method for Mass Flow Measurement Based on Acoustic Damping of a Rheologic Medium基于流变介质声阻尼的质量流量测量新方法
12.Study of constant-current source for measuring DCR of large electric power equipment电力设备直流电阻测量用恒流源研究
13.The wave of the future is coming and there is no stopping it.未来发展潮流已定，谁也无法阻挡。
14.Study of Armature Equivalent Resistance in Brushless DC Motor无刷直流电动机电枢等效电阻的研究
15.CONGESTION COST ALLOCATION BASED ON THE POWER FLOW CHANGE IN THE CONGESTION INTERFACE;基于阻塞支路潮流变化量的阻塞成本分摊
16.Co-axial cylinders viscomter: A type of viscomter for measuring the viscosity of non-newtonian liquids such as offset and letterpress inks.同轴圆筒流阻度计:流阻度计的种。它量度非 顿流动液体如活版和柯式油墨等的流阻度。
17.We must try to keep all lines of communication open.我们必须尽量保持通讯全线畅通无阻。
18.Method of measurement of current noise generated in fixed resistorsGB/T7016-1986固定电阻器电流噪声测量方法
相关短句/例句
coefficient of obstructed-discharge distribution阻水流量分配系数
3)absolute open flow无阻流量
1.The absolute open flow of natural gas wells is an important index reflecting the potential productivity of gas wells and an important basis to determine the yield of gas wells scientifically and rationally.天然气井绝对无阻流量是反映气井潜在产能的重要指标,是科学、合理地确定气井产量的重要依据,该指标目前广泛采用一点法产能试井方法来确定,而一点法产能试井资料的解释普遍采用经验方法。
2.The BP artificial nerve network method is only in want of the primary data of the target gas well when forecasting absolute open flow and much practical testing data of a few gas wells as the samples in the same reservoir.与现在流行的求取压裂气井无阻流量的方法相比,BP人工神经网络方法具有极大的优越性和适用性,它勿需考虑压裂后气井的复杂渗流规律,也不需数值模拟。
3.Absolute open flow is a important index of appraising oil/gas well production capacity,and often used in oil/gas well classification、proration and dimensionless parameters in other equations and so on,it denotes oil/gas productions under full openness of well bottom.无阻流量是评价油气井生产能力的重要指标,也常用于油气井分类、配产和其它公式中参数的无因次化等,它表示井底在完全敞开的情况下油气井的产量。
4)open flow potential无阻流量
1.Influence factors of open flow potential in condensate gas well;凝析气井无阻流量影响因素分析
2.One of the most important means for effective recovery of gas reservoir during its middle and late development stage is to calculate the open flow potential,investigate the deliverability and thus to adjust working condition of gas wells.在气藏开发中后期生产管理中适时确定生产井的无阻流量,了解生产井的生产能力,及时调整生产井的工作制度是合理开发气藏的主要手段之一。
3.For gas well, the open flow potential of exploration well according to the gas open flowback production is estimated firstly.对于探井依据放喷排液时的产气量,初步估算测试井的无阻流量,若太原、山1、山2、盒1无阻流量估算大于3×104m3/d,盒2、盒3层无阻流量估算大于5×104m3/d,则进行修正等时试井,否则只进行"一点法"试井。
5)open flow capacity无阻流量
1.Gas well open flow capacity is an important basis of determining gas well reasonable yield, and is also the main considerable factor of formulating development technological countermeasure.气井无阻流量是确定气井合理产量的重要依据 ,也是制定开发技术对策的主要考虑因素 ,如何在气田开发早期或勘探评价阶段就准确获知气井无阻流量 ,是我们研究的重要课题。
2.A new method is introduced in this paper to determine absolute open flow capacity of gas wells.在气井二项式产能方程的基础上,提出了利用单点测试资料建立气井产能方程、确定气井绝对无阻流量的新方法。
3.The purpose of this study is to enhance the accuracy in determing open flow capacity values of gas wells in Lower Paleozoic of Changqing gas field by "single point testing" method.使单点法确定的气井无阻流量误差一般小于 10 %。
6)open-flow capacity无阻流量
1.Steady-state productivity model for fractured gas well andvarying factor single point method for computing open-flow capacity;气井压后稳态产能模型及求取无阻流量的变系数一点法
2.Based on these,the applied conditions for the 4 methods are presented,which is as a guide for determination of open-flow capacity in different oil wells.讨论了4种确定气井无阻流量方法的理论依据和实际意义,计算精度与应用条件,优点与不足,不同方法之间的内在联系。
延伸阅读
理想流量计试探与流量仪表的选用理想流量计试探 1．检测件无阻碍物； 2．检测件可夹装在管道外部，可随意移动在任何地点测量而无须截断管道与流体； 3．仪表的流量计算方程简单明确，可外推到未知领域而无须实流校验； 4．频率脉冲输出信号，数字式仪表，便于远传抗干扰及与计算机联网； 5．仪表输出信号不受流体介质物性的影响； 6．仪表输出信号不受流体流动特性的影响； 7．仪表复现性高； 8．仪表范围度宽，线性好； 9．仪表可靠性高，价格适宜，维修技术不复杂； 10.无须个别实流校验，或只须“干校”，或在一、二种介质中校验可推广到各种介质； 11.检测件输出信号直接反映质量流量。 可以说至今并没有出现上述的理想流量计，所有流量计都多少具备一些上述条件，只不过有的多些，有的少些。所有流量计制造厂试制新产品都力图能更多地具备上述条件。 流量仪表的选用 流量仪表的选型对仪表能否成功使用往往起着很重要的作用，由于被测对象的复杂状况以及仪表品种繁多，产品质量难以掌握等情况，使得仪表的选型感到困难。没有一种十全十美的流量计，各类仪表都有各自的特点，选型的目的就是在众多的品种中扬长避短，选择自己最合适的仪表。 一般选型可以从五个方面进行考虑，这五个方面为仪表性能方面、流体特性方面、安装条件方面、环境条件方面和经济因素方面。五个方面的详细因素如下： 1.仪表性能方面 准确度、重复性、线性度、范围度、流量范围、信号输出特性、响应时间、压力损失等； 2.流体特性方面 流体、温度、压力、密度、粘度、化学腐蚀、磨蚀性、结垢、堵塞、混相、相变、电导率、声速、导热系数、比热容，等熵指数； 3.安装条件方面 管道布置方向，流动方向，检测件上下游侧直管段长度、管道口径、维修空间、电源、接地、辅助设备（过滤器、消气器）、安装、脉动等； 4.环境条件方面 环境温度、湿度、电磁干扰、安全性、防爆、管道振动等； 5.经济因素方面 仪表购置费、安装费、运行费、校验费、维修费、仪表使用寿命、备品备件等。 仪表选型的步骤如下： 1. 依据流体种类及五个方面考虑因素初选可用仪表类型(要有几类型以便进行选择); 2. 对初选类型进行资料及价格信息的收集,为深入的分析比较准备条件; 3. 采用淘汰法逐步集中到1-2种类型,对五个方面因素要反复比较分析最终确定预选目标。
