Relative volume percentage of movable fluid of more than one hundred of super-low permeability core samples is tested by using nuclear magnetic resonance technique.
利用核磁共振无损检测技术对一百余块低渗、特低渗透岩样进行了可动流体相对体积的实验测试。
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。
Owing to a small fluid flowing rate, it is difficult to measure and interpret the physical parameters of low permeability tight rocks by use of conventional core analysis method.
对于低渗透致密岩石的物性参数，由于流体流动速率很小，采用常规的岩心分析方法难以测量和解释。
The experimental data of fluid flow in porous core with low permeability were analyzed with simulation theory and plotted as a log log typical curve.
用无因次分析法对低渗透岩心的实验数据进行了分析，得出新的渗流规律。
It indicates that core experiments of petrophysical parameters for low porosity and permeability reservoir are important in establishing logging interpretation models and formation evaluation.
表明开展低孔隙度低渗透率储层的岩石物理实验，对于建立测井解释模型，进而评价该类储层，具有重要的研究价值。
So the transformer core material is required to be the one with properties of low losses at high frequency, high dynamic permeability, high saturation induction and low remanence.
要求变压器铁芯具有低的高频损耗，高动态磁导率，高饱和磁感应强度和低的剩磁比。
Therefore, the experiments of core NMR of the low-permeability reservoir in Tazhong oilfield are done adopting the published experimental method in the paper.
为此，本文借鉴已发表的实验方法对塔中地区低渗透储层岩心进行核磁共振实验。
Therefore, the experiments of core NMR of the low-permeability reservoir in Tazhong oilfield are done adopting the published experimental method in the paper.
为此，本文借鉴已发表的实验方法对塔中地区低渗透储层岩心进行核磁共振实验。
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