1) critical water head pressure gradient
临界启动压力梯度
1.
Secondly,the relationship between critical water head pressure gradient and lateral deformation of rock specimen is described by a linear equation based on the deformation data;and then an empirical function is proposed for crack hydraulic aperture and the lateral deformation of specimen.
然后,通过试验中记录的变形数据,拟合临界启动压力梯度和裂隙水力开度与试样侧向变形的函数关系式,得到不同静水压力条件下由水头压力引起的裂隙水力开度的变化规律;并深入分析临界启动压力梯度、固有渗透系数和二次项系数演化的内在机制。
2) critical pressure gradient
临界压力梯度
1.
The reasons and influential factors of start-up pressure gradient,sham start-up pressure gradient and critical pressure gradient were discussed.
针对非达西渗流的两个研究领域———低速非达西渗流和高速非达西渗流的运动方程等研究成果分别总结;对低速非达西渗流试验方法以及启动压力梯度、拟启动压力梯度和临界压力梯度的产生原因和影响因素进行了论述,且分类介绍了其运动方程;简要介绍了高速非达西渗流的试验方法,并讨论了通过实验曲线建立其运动方程的一般过程,并分类介绍了运动方程;最后概述目前非达西渗流研究的各种问题。
3) threshold pressure gradient
启动压力梯度
1.
Unsteady seepage model for low permeability reservoir with threshold pressure gradient;
考虑启动压力梯度的低渗透油藏不稳定渗流模型
2.
Numerical model considering threshold pressure gradient for stress-sensitive low permeability reservoir;
考虑启动压力梯度低渗透油藏应力敏感模型研究
3.
At present,the study of threshold pressure gradient in home and abroad is only theoretical,and the experimental study is a little.
目前,国内外对启动压力梯度的研究基本都集中在理论研究层面,实验研究很少。
4) start-up pressure gradient
启动压力梯度
1.
Influence of start-up pressure gradient and stress sensitivity on productivity of low-permeability gas reservoirs;
启动压力梯度和应力敏感效应对低渗透气藏水平井产能的影响
2.
Numerical simulation of pinnate horizontal multilateral well for coal-bed gas development in consideration of start-up pressure gradient;
考虑启动压力梯度的煤层气羽状水平井开采数值模拟
3.
Numerical simulation of productivity of fractured gas well with start-up pressure gradient considered;
考虑启动压力梯度的压裂气井产能数值模拟
5) Starting pressure gradient
启动压力梯度
1.
Experiment on starting pressure gradient of oil and water two phases flow in low permeability core.;
低渗透岩心中油水两相渗流启动压力梯度试验
2.
A new solution and application of starting pressure gradient in ultra-low permeability reservoir;
特低渗油藏启动压力梯度新的求解方法及应用
3.
An experimental study on starting pressure gradient of fluids flow in low permeability sandstone porous media;
低渗透砂岩油藏渗流启动压力梯度实验研究
6) actuating pressure gradient
启动压力梯度
1.
The effects caused by oil viscosity and actuating pressure gradient on the variation regularity of productivity index and fluid productivity index vs water cut have been analyzed, and the variation regularity of the productivity index of various microfacies vs producing pressure drop has been studied.
对温米油田采液、油指数变化规律及影响因素进行了分析、研究;分析了原油粘度和启动压力梯度对采液(油)指数随含水变化规律的影响;对不同微相的采油指数随生产压差变化规律进行了研究。
2.
The relationship between the actuating pressure gradient and the cores air permeability,mobility,immobile water saturation and cores depth is analyzed.
为此,针对徐深气田复杂低渗的火山岩气藏以岩心为研究对象开展了实验研究,认识到岩样具有偏离达西定律的渗流特征,流体流动受启动压力梯度影响。
3.
Because it has generally low porosity and permeability characteristics,actuating pressure gradient,slippage effect,water blocking effects and other factors affect the flow characteristics.
低渗透气藏储量在四川盆地占有相当大的比例,但是,由于它普遍具有低孔、低渗的特点,使得启动压力梯度、滑脱效应、水锁效应等因素影响其渗流特征,使其具有与常规气藏不同的渗流机理。
补充资料：压力梯度校正因子
分子式：
CAS号：
性质：又称压力校正因子。在气相色谱法中，用以校正在色谱柱中由于载气的可压缩性所产生的压力梯度的因子。
CAS号：
性质：又称压力校正因子。在气相色谱法中，用以校正在色谱柱中由于载气的可压缩性所产生的压力梯度的因子。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条