pressure gradient的例句大全

Classification parameters for low permeability reservoir has been found, which is based on the impact of flooding efficiency and recovery percent, regarding penetration, movable fluid saturation, the average throat radius and the starting pressure gradient.

从渗透率、可动流体饱和度、平均喉道半径和启动压力梯度对低渗透储层驱油效率、采收率的影响程度出发，建立了低渗透储层分类的参数体系。

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In MHD, tearing mode instability is suppressed by pressure gradient effect.

在磁流体中，电子压强梯度对撕裂模不稳定性起到抑制作用。

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The paper constructs a correlation formula for the pressure gradient and geothermal gradient in the lithosphere with the thermocompression coefficient.

与地温梯度一样，岩石圈中的地压梯度在空间和时间上也应是复杂多变的。

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Generally the CVD methods for C/ C are the isothermal method, the temperature gradient method, the pressure gradient method.

概括了CVD的基本方法，如等温法、压差法、热梯度法等。

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Threshold pressure gradient selection in polymer flooding process

聚合物驱油过程中的阈压梯度选择

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Transient Pressure of Percolation Through One Dimension Porous Media with Threshold Pressure Gradient

低渗透介质含启动压力梯度一维瞬时压力分析

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One-dimension water-oil displacement mathematics model considering threshold pressure gradient is established.

建立了考虑启动压力梯度的一维油水两相驱替数学模型，进行了数值求解。

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And this paper build the relationship formula between threshold pressure gradient and air permeability, water saturation.

并且建立了油水两相启动压力梯度与空气渗透率、含水饱和度的关系式。

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Influencing Factors for Threshold Pressure Gradient near the Wellbore on Tight Sand Stones Reservoirs

致密砂岩储层近井区启动压力梯度的存在原因探讨

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The relationship between permeability and the threshold pressure gradient is studied by the threshold pressure gradient experiment.

利用启动压力梯度实验，研究油层渗透率与启动压力梯度的关系；

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The method is presented to determine formation average pressure and boundary pressure with threshold pressure gradient and injection-production ratio.

给出了考虑注采比和启动压力梯度的平均地层压力和边界压力的确定方法。

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The same rock core has a lower threshold pressure gradient when larger steady threshold seepage velocities occur.

同一块岩心在初始稳定渗流速度大的情况下，岩心的启动压力梯度小。

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Many experiments justify that there is a threshold pressure gradient ( TPG) in low permeability reservoirs.

试验表明，低渗透油藏存在启动压力梯度。

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The threshold pressure gradient of low permeability sandstone was studied experimentally by measuring the pressure attenuation in an unsteady seepage flow.

为了研究低渗透砂岩的启动压力梯度，设计了一种非稳态渗流中测量压力的试验方法。

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The analysis shows that the longer the producing time, the greater the threshold pressure gradient is, and the faster the production decline is.

分析结果表明，随着生产时间增长，启动压力梯度对产量影响显著，启动压力梯度越大，井的产量下降得就越快。

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An equation is also got to calculate the threshold pressure gradient in nonlinear seepage flow by analyzing to the data got form the single-phase seepage flow experiments.

通过对岩心单相渗流实验得到的数据进行分析归纳，得到了其流体非线性渗流段启动压力梯度的计算式。

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The experiments show that microbe solution flooding can decrease the threshold pressure gradient, lessen the flow resistance, and extend the effective drainage distance.

与水驱相比，微生物驱油可降低启动压力梯度，降低渗流阻力，扩大有效驱动距离。

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Based on the experiment results, paper plots the relationship cure between threshold pressure gradient and permeability, and gets the critical Reynolds' number of a certain region;

根据实验结果，建立了启动压力梯度与渗透率的相关曲线，得出了某一地区的临界雷诺数；

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The matching ratio of gel particle and pore throat size and critical pressure gradient of particle motion have been studied by core test experiments and special structurally visual micro-model experiments.

采用填砂岩心实验和具有特殊喉道结构的微观蚀刻模型定量地研究了颗粒大小与孔喉尺寸的匹配关系以及颗粒发生运移的临界条件。

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The methods of geopressure prediction are appreciated in this paper, The results show that seismic internal transit time deviation-pore pressure gradient convertion take advantage of the known pressure data ( RFT).

研究了压力预测的方法，推导地震声波时差差值&压力梯度法的计算公式并指出它的优点是能够充分利用已知的钻井实测压力资料；

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