At high speed, asphaltene plugging is more serious with increase of flow rate. The damage degree of asphaltene plugging is higher in low permeability core than in high one.
在较高流速下，随速度升高，沥青所造成的孔喉堵塞更加严重，在低渗岩心中沥青堵塞引起渗透率伤害程度大于高渗透岩心。
The factors that remarkably affect the permeability of sand were the ratio of course area to pump area, granularity of the dry-sand and their interaction, and their affecting degree minished in order.
显著影响型砂渗透系数的因素是通流面积与抽气面积的比值，型砂粒度以及二者之间的交互作用，其影响程度依次减小。
The space degree and permeability of two groups of rock specimens are both raised with temperature and decreased with pressure.
两组岩样随温度升高空隙度、渗透率都是呈现增大的趋势。
Based on the core and logging data, this paper analyses and evaluates density of seams, opening degree, porosity, permeability and seam spacing in the Tazhong area.
本文结合岩心、测井等资料，对塔中裂缝的密度、开启程度、孔隙度、渗透率、连通性与裂缝间距等参数进行了分析与评价。
Water injection is always difficult in low permeability reservoirs, to improve the working degree of this reservoir, Wei42 14 well group was selected to conduct the nitrogen gas flooding pilot test.
低渗透油藏的注水往往存在很大困难，为提高此类油藏的动用程度，选择卫4 2 14井组实施了氮气驱先导试验。
The quantity and distribution of remaining oil are dominated by the type of deposit rhythm, gravity and capillarity force, permeability and water flooding degree.
剩余油的数量、分布情况受油层沉积韵律类型、重力作用、毛管力作用、油层渗透率、水驱强度等多种因素的制约。
Increasing the compaction degree and preventing the cracks in concrete from occurring are the fundamental measures to improve the permeability resistance of concrete.
增加混凝土的密实度和防止混凝土开裂，是提高混凝土抗渗性能的根本措施。
Privacy technology — with special optical done, it's permeability within 30-60 degree, in order to have the function of anti-sight.
防窥视技术- - -特殊光学处理，在30 - 60度视觉内通透，以外具有防窥视功能。
The experimental result draws hole degree and permeability in the normal atmospheric temperature atmosphere is deferent because of the different rock specimen.
实验结果得出由于选用不同性质的岩样，测试出岩样在常温常压下孔隙度存在差异。
Purpose To improve the producing degree of high pour-point, low permeability and deep reservoirs.
目的提高高凝、低渗深层油藏的动用程度。
It can be applied in calculating damage degree of the stress sensitivity of permeability of this reservoir.
通过该式可以计算该储层渗透率应力敏感性伤害程度。
The study shows that:porosity development degree and permeability of coal have good consistency, and the permeability increases as the porosity development degree increases;
试验研究表明：煤体孔隙发育程度与渗透率具有较好的一致性，渗透率随孔隙发育程度的增高而增大；
One of main damage factors in low-permeability sandstone oil pool is pressure sensitivity, degree of which is dependent on rocks features.
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。
The pore water permeability coefficient of unsaturated expansive soil is controlled by suction, cell pressure, dry density and degree of saturation of soil samples.
压实膨胀黏土水渗透系数受吸力、围压、干密度、饱和度等因素控制。
The test results show that: (1) For low degree of compaction and moderate permeability of soil, sudden-ly landslides will occur at toe of slope due to the seepage of groundwater.
试验结果指出：(1)压实度较小、渗透性较佳之土壤，因地下水渗透，在坡脚产生瞬间坍方。
On-site fast permeability detecting of non-regular shaped cuttings is very important for evaluating the formation damage degree caused by the invasion fluid.
现场快速测定形状不规则岩屑的渗透率是评价入井流体对储层损害程度的一个重要手段。
Arm-wide surrounded by a high permeability flexible design, can cover the whole arm to do the curve with a high degree of close-coated.
全臂式的高透气四面伸缩设计，能使护套能以整个手臂的曲线做高度均与的紧密包覆。
Arm-wide surrounded by a high permeability flexible design, can cover the whole arm to do the curve with a high degree of close-coated.
全臂式的高透气四面伸缩设计，能使护套能以整个手臂的曲线做高度均与的紧密包覆。
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