• 涂料自动供给确保涂覆一致性。

    Automatic Constant liquid flow supply that ensures the average coating.

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  • 临界地层特征参数随地层发生变化

    The critical flow pressure is a characteristics parameter which does not change with reservoir pressure.

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  • 随着井底某一临界值, 岩石骨架开始出现屈服

    When the flowing bottom hole pressure decreases to a critical value, the matrix will begin to yield .

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  • 完全圆形截面能够提供最大最小损失

    The full round port area provides maximum flow capacity and minimum head loss.

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  • 本文方法思路清晰原理正确充分发挥了监测资料作用。

    This method has a clear train of thought and a correct principle, and it takes full use of flowing pressure testing data.

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  • 达西定律表明油井地层井筒井底具有相关性

    Darcy's law indicates that formation pressure of an oil well has some correlativity with wellbore fluid producing volume and bottom hole flowing pressure.

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  • 无限大地层—口间歇试采生产地层分布井底变化规律

    The rule of reservoir pressure distribution and bottom hole flowing pressure alteration of a periodic trial-produce well in infinity subterranean formation.

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  • 增加导致激波扩张上游移动,喷管矢量不断增加

    Along with the increase of the secondary flow pressure ratio, the shock move toward upstream divergent section and the thrust vector angle gradually increases;

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  • 通常人们采用气井某一时刻稳定产能方程结合废弃井底来计算废弃地层

    The abandonment formation pressure(AFP) of gas well is usually calculated by stable productivity equation and abandonment flowing bottom hole pressure.

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  • 量化方法突破经验进行参数调整的传统方法的局限,能够确保调整到位

    The quantitative approach breakthroughs the past parameter adjusting by practical experience, which can ensure the accurate flowing pressure only for one time.

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  • 提出油气井临界井底安全产量概念科学地管理油气井有着一定的现实意义

    The paper presents the conception of bottom-hole critical flowing pressure and secure production of oil well. It is of practical significance for management of oil well.

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  • 多相理论为基础结合我国油田的具体情况介绍一种计算油井井底方法

    On the basis of new research results in vertical multiphase flow and taking into account our oilfield conditions, a method for predicting flowing bottom-hole pressure in pumping Wells is presented.

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  • 而且水平井段,降低更大限度发挥水平段的产能提高了单井量。

    But also down to the horizontal, reducing the flow pressure, the greater level of play to a new level of capacity, increased liquid production of single well.

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  • 特性两相稳定性研究中的重要特征参数,不同类型的不稳定有不同的降特性与之对应。

    Two phase flow pressure drop characteristic is an important parameter in the study of two phase flow stability.

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  • 给出极限井底产量拐点求解方法,分析了启动梯度性质等因素对渗透油藏油井产能影响

    The effects of reservoir fluid property in high and low pressure and the starting pressure gradient on the percolation laws were taken into account in this model.

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  • 分析认为周期气量、注气速度浸泡时间和生产过程中的井底方式都是影响单井吞吐效果重要因素

    The study shows that cyclic steam injection rate, soaking time, flowing bottom hole pressure and blowdown mode are important factors influencing the effectiveness of single well steam stimulation.

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  • 油田进入大面积开发后,进行定点定点恢复测试中,存在着由于无法准确的测试稳定流压,造成解释结果偏差问题

    The fixed-point and the non - fixed-point buildup test at full development of oilfield can't accurate test stability flowing pressure that results in deviation.

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  • 利用牛顿力学水力学运动学原理计算吸入口以上泡沫平均密度,并应用于实际生产及二量试井,取得了好的效果。

    Both the average density of bubble fluid above the pump intake and flowing pressure can be obtained using the theory of Newton mechanics, hydraulics and kinematics. The method ha...

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  • 注水开发过程中,采用较高的注采保证主力油层,选择油井合理流压生产差,对实现较时期的高产稳产十分重要的。

    To ensure prolonged stable high production, it is necessary to use a high injection-production ratio so as to ensure that enough water is injected into the main pay…

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  • 在综合考虑油层渗透率、地层、井底油井量产生影响因素的基础上,建立基于上述网络算法的抽油井入动态预测模型

    Considering oil penetrable rate, stratum pressure, liquid pressure, etc, which affect oil well yield, a network model of oil well drifting forecast was established.

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  • 根据西南威远气田大水量气井现场测试数据,建立了举升油管油套环空气两相优化模型。将油管内的持液率模化为气相、液相无因次速度和液相无因次粘度的函数;

    An optimal model is proposed for predicting the pressure drop of two-phase flow in gas well tubing and annulus, based on the measured data from the gas field of southwest Sichuan, China.

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  • 利用模型可以对火烧油层注气井曲线进行解释求解扩散比以及各区波及半径参数

    With this model, the pressure drop curve of well testing is interpreted, and mobility ratio, diffusion ratio, sweep radius of each area and some other parameters are solved.

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  • 侧板后掠角大小位置变化时,对进气道质量捕获恢复系数隔离段出口均匀都有一定的影响

    Changes of sidewall sweep Angle and cowl position can influence inlet performance such as mass capture, total pressure recovery coefficient and uniformity of isolator exit flow field.

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  • 侧板后掠角大小位置变化时,对进气道质量捕获恢复系数隔离段出口均匀都有一定的影响

    Changes of sidewall sweep Angle and cowl position can influence inlet performance such as mass capture, total pressure recovery coefficient and uniformity of isolator exit flow field.

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