单个系泊浮体在规则波作用下，所受的流体动压力用势流理论计算。
In regular waves, the hydrodynamic forces acting on a single floating body can be obtained from the potential flow theory.
分析了流体动态特性实验台架本身的自循环特性对海水管路系统中脉动压力测量的影响。
This paper analyzes the influence of the test device cycling characteristic for fluid dynamic characteristic on the pulsation pressure measurement in seawater pipeline system.
给出了极限井底流压和产量拐点的求解方法，分析了启动压力梯度、流体性质等因素对低渗透油藏油井产能的影响。
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.
在恒定的流体产量下，在井底静压力与井底流动压力之间的压力差值。
The difference between static bottomhole pressure and flowing bottomhole pressure (in psi) at a constant fluid production rate.
对于宾汉型塑性流体模型，得到了计算驱动压力的显式计算公式，据此可进行污泥泵型选择。
For Bingham type plastic fluid modal, the explicit formula for calculating the pumping pressure is obtained, which can be used to choose the pump type.
液压振动系统的主要特点是在桩机液压系统中的压桩油路产生流体压力变化和波动，从而使沉桩力出现高频的周期变化，产生振动压桩的效果。
The main character of the HVS is that, by means of fluctuating oil pressure, the pile-driving force can be changed in a higher frequency, and therefore better vibrating effect can be gained.
研究了连续油管柱内流体的液动压力对连续油管柱纵向振动的影响问题。
This paper studies the affection that the flowing force of fluid inside coiled tubing is correlated to longitudinal vibration of coiled tubing.
当用气体钻井打开储层时，由于钻进时井筒流动压力远远低于地层孔隙压力，储层流体就不断地流入井筒，并返出到地面。
For gas Drilling, the bottom hole pressure is far smaller than the formation pressure, so that the gas in the reservoir come out to the hole continuously and get out of the well.
另外，重要的是由于其流线型表面，使得形状阻力减小，从而降低了流动压力损失，减少流体输送能耗。
In addition, due to the streamline surface, the shape resistance is reduced, thus lowering the flowing pressure loss and the fluid transportation energy consumption.
基于其启动压力梯度，推导出了宾汉流体的运动半径和运动边界压力求取公式在此基础上推导出了垂直井在稳态状态下的产能预测公式。
Moving radius and moving boundary pressure are derived based on its star-tup pressure gradient. Productivity of vertical wells is derived on the above three parameters.
本文用混合隐式特征线法求解了井内流道中的瞬态波动压力问题，给出了弹性管和可压缩流体在井内各流道组合的压力波波动方程和定解条件。
By using the combined implicit characteristic line method, the calculation of the transient surge pressure in the flow conduit of a drilling well has been resolved in this paper.
②凝胶ZND是否能够形成隔断地层流体与井筒流体联系的隔断式凝胶段塞，所形成的凝胶段塞是否具有启动压力梯度及其调控措施仍需实验和现场试验证实；
However, it was still lack of systematic study of rheology of gel ZND. And the rationality, correctness and feasibility of the separating-type gel slug principle need to be verified yet.
②凝胶ZND是否能够形成隔断地层流体与井筒流体联系的隔断式凝胶段塞，所形成的凝胶段塞是否具有启动压力梯度及其调控措施仍需实验和现场试验证实；
However, it was still lack of systematic study of rheology of gel ZND. And the rationality, correctness and feasibility of the separating-type gel slug principle need to be verified yet.
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