plastic fluid

To meet the requirements of well cementing for s mall borehole and small annular space, the composite plastic fluid loss additive PT-2 was studied.

为适合小井眼、小间隙井的固井要求，研究了复合塑性降滤失剂PT&2体系。

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a new productivity prediction equation of vertical wells in plastic fluid type heavy oil reservoirs

塑性流体型稠油油藏垂直井产能预测公式

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It was suggested that MBG looked like a Newtonian fluid or a pseudo-plastic fluid under different conditions, and under the shear rate of52.

结果表明，凉粉草胶溶液在不同的条件下呈牛顿流体或假塑性流体行为，在剪切速率52。

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Effect of heat conduction is added to the one-dimensional flow equations of spherical symmetry, and the temperature distribution during the closure of the hollow sphere is solved by finite-difference under the condition that the material is rigid-plastic fluid and the constitutive equations are thermo-visco-plastic.

在球对称塌缩一维流动的控制方程中引入传热项的影响，采用刚塑性假设并引入热粘塑性本构关系，利用有限差分法对球壳收缩过程中的温度分布进行了计算。

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in-house study of composite plastic fluid loss additive pt-2 of oil well cement

油井水泥复合塑性降滤失剂PT-2的室内研究

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