反之则油相相对渗透率下降较快，水相相对渗透率上升较缓。
On the contrary, oil-phase relative permeability declines quickly, while water-phase relative permeability goes up slowly.
流动效率影响因素依次为：压实带中渗透率下降程度、压实带厚度。
The factors that influence core flow efficiency are flow permeability decrease in crushed zone and the thickness of crushed zone.
流量影响因素依次为：压实带内渗透率下降程度、射孔孔道形状、压实带厚度；
The flow depends on following: permeability decrease in crushed zone, the shapes of perforating tunnel, the thickness of crushed zone.
在煤层气开发过程中，随着储层压力下降，有效压力增加，煤储层渗透率下降。
During the exploitation process of the coal-seam gas, with the seam pressure decreasing and the effective pressure increasing, the coal-seam permeability declines.
在钻井、完井等井下作业过程中，造成油气层渗透率下降的现象通称为油气层损害。
The phenomenon of reservoir permeability decrease caused by drilling, completion and other underground operation is known as formation damage.
体积流过量试验结果显示，当注入150倍孔隙体积注入水时，因粘土膨胀，渗透率下降达28%。
The result from the testing by volume flow overrate demonstrates that when injected water as much as 150 fold of pore volume is used, permeability is reduced as much as 28% due to clay swelling.
测试过程中岩石变形使近井区域形成了一个渗透率下降漏斗，但下降的幅度较小，对气井产量的影响也不大。
During the test, the rock deformation built up a permeability drawdown cone around the wellbore of Well Kela 205, but the decline scope is small and its effect on productivity is not serious.
结果表明，该堵剂可使水相渗透率下降85%以上，油相渗透率下降25%以下，具有明显的选择性封堵作用及优良的耐冲刷性。
The results showed that, the permeability of water phase decreased 85% at least, the permeability of oil decreased no more than 25%. PDZ-1 has high selective plugging and a nice flushing resistance.
大量实验表明：当油藏生产原油时，随着地层中流体压力的降低，油层的孔隙度和渗透率下降，特别是在异常高压油藏中尤为显著。
Many experiments show that: when a well produces oil from a reservoir, the porosity and permeability will decrease, as fluid pressure drops, especially for reservoirs with abnormal high pressure.
水相圈闭损害主要表现在两个方面，内部表现为可动气量的减少和气相渗透率的下降，外部表现为产气量的下降和气藏采收率的降低。
Aqueous trapping display in two aspects, one is the reduction of mobile gas and the degression of gas permeability, the other is the decline of gas production rate and the decrease of gas recovery.
物理实验发现，所用的生物聚合物溶液中的悬浮微粒在多孔介质中进行运移，并被捕集，因而引起溶液在介质中的渗透率显著下降。
The suspended particles in biopolymer solution, when moving through the porous media, are captured by the latter, which reduces remark— ably the solution permeability through the media.
随着用于实验的流体矿化度的逐渐降低，岩心渗透率持续下降，且当流体矿化度急剧降低时，岩样水敏性损害加剧。
Core permeability lowers along with the decreasing salinity of fluid used in the experiment, and water sensitivity damage intensifies when fluid salinity decrease sharply.
在围压下降过程中，砂岩和单裂隙试件渗透率的恢复均存在明显的应力滞后效应。
Moreover, for sandstone and granite with a single fracture, there is obvious hysteresis effect for the restitution of permeability in the process of unloading for confining pressure.
随着异常高压气田开发过程的进行，地层压力逐渐下降，进而诱发岩石渗透率损失是不可逆的。
The permeability loss is not reversible since the reservoir pressure decreases gradually as gas exploitation is conducted in abnormal pressure gas reservoirs.
实验结果表明，温度下降、原油组分改变、流速变化均能促进有机垢的形成，导致油层渗透率显著下降。
The result shows that these parameters' changes are the main factors that cause the reservoir permeability to drop obviously.
随着油田开发的进行，地层压力逐渐下降，水平裂缝趋于闭合，渗透率大幅下降，严重影响了生产能力。
With continuing an oilfield development, its formation pressure tends to decline along with the horizontal fractures being closed, the permeability drawdown and the productivity being damaged.
结果表明，多孔介质中甲烷水合物的存在会导致其渗透率急剧下降，饱和度-渗透率曲线呈指数分布。
The result shows that the existence of methane hydrate in porous media can cause a sharp decline in its permeability, and saturation-permeability curve obeys exponential distribution.
油藏采出流体后，地层压力下降，渗透率和油井产量都会有不同程度的降低，即出现所谓的应力敏感。
One of main damage factors in low-permeability sandstone oil pool is pressure sensitivity, degree of which is dependent on rocks features.
试验结果表明该类岩心的孔隙度和渗透率随压力增大呈近指数规律下降。
It is concluded that porosity and permeability of the core are declined with the increase of pressure.
虽然降价意味着利润率下降，但公司人士相信，在被卫哲称为经济“严冬”的这段时期，这一做法将让阿里巴巴得以扩大在小型出口商中间的渗透率。
The lower prices mean thinner profit margins, but executives believed the move would let Alibaba. com expand penetration among small exporters during what Mr. Wei calls the economic 'winter.
在地应力的作用下，煤储层渗透率急剧下降，裂缝逐渐趋于闭合。
Under the effect of geostress, the coal-seam permeability decreases sharply and the fissure gradually tends closed.
在地应力的作用下，煤储层渗透率急剧下降，裂缝逐渐趋于闭合。
Under the effect of geostress, the coal-seam permeability decreases sharply and the fissure gradually tends closed.
应用推荐