煤基质收缩 的翻译结果

  本文关键词：煤基质收缩对裂隙渗透率影响的新数学模型，由笔耕文化传播整理发布。

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矿业工程

石油天然气工业

地质学

煤基质收缩

     Testing study on the internality controlling factors of coal matrix shrinkage ability

     煤基质收缩能力内在控制因素的试验研究

短句来源

     NEW MATHEMATICAL MODEL FOR EFFECT OF COAL MATRIX SHRINKAGE ON FRACTURE PERMEABILITY

     煤基质收缩对裂隙渗透率影响的新数学模型

短句来源

     Experimental Research of Influence of Coal Matrix Shrinkage on Permeability

     煤基质收缩对渗透率影响的实验研究

短句来源

     The acquired achievements are as follows: On the basis of the theories of solid deformation and solid surface energy, developing a coal matrix shrinkage model that indicates the effects of the deformation of coal matrix shrinkage on the porosity and permeability of fractures.

     1 基于固体变形理论与固体表面能理论，建立煤基质收缩或膨胀变形与煤裂隙渗透率和孔隙度关系的数学模型。

短句来源

     The permeability influenced by slippage of gas molecule along the pore or fracture wall was corrected by using the Klinkenberg formula, and the coal matrix shrinkage induced change of permeability was quantitatively educed.

     同时 ,利用克林伯格公式 ,校正了因气体分子沿壁面滑移而受影响的渗透率 ,并定量地推导了煤基质收缩引起的渗透率变化情况 .

短句来源

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     Based on the solid deformation theory and the solid surface theory, a new mathematical model is developed for the effect of shrinkage and deformation of coal matrix on permeability and porosity of coal fractures to eliminate the error caused by calculating permeability and porosity of coal fractures directly with the coal shrinkage factor.

     文章基于固体变形理论与固体表面能理论,建立了一个新的煤基质收缩变形对煤裂隙渗透率和孔隙度影响的数学模型,消除了直接用煤体收缩系数来计算煤裂隙孔隙度和渗透率所引起的误差。

短句来源

     The study results show the change of the fracture permeability caused by the matrix shrinkage experiences the process of descending first and then ascending.

     研究结果表明,煤基质收缩引起裂隙渗透率变化经历了一个先降低后升高的趋势;

短句来源

     With real cases calculating, analyzing and comparing, it is found that the model can reflect the effect of shrinkage and deformation of coal matrix on permeability and porosity of coal fractures properly and accurately.

     最后,通过实例计算分析对比,模型能准确合理地反映煤基质收缩变形对煤裂隙渗透率和孔隙度变化的影响。

短句来源

     Experimental Research of Influence of Coal Matrix Shrinkage on Permeability

     煤基质收缩对渗透率影响的实验研究

短句来源

     Testing study on the internality controlling factors of coal matrix shrinkage ability

     煤基质收缩能力内在控制因素的试验研究

短句来源

     NEW MATHEMATICAL MODEL FOR EFFECT OF COAL MATRIX SHRINKAGE ON FRACTURE PERMEABILITY

     煤基质收缩对裂隙渗透率影响的新数学模型

短句来源

     With development of the coalbed methane,the shrinking function of the coal base material would enlarge the permeability of the seam.

     随着煤层气的开采煤基质的收缩作用增大了煤层渗透性。

短句来源

     Study on dynamic diffusion characteristics of methane in coal matrix

     煤基质中甲烷扩散动力学特性研究

短句来源

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Parallel experiments for permeability of helium and methane under confining pressure were carried out. By controlling the effective stress, the problem of permeability decreasing caused by fluid pressure decreasing and gas desorption was eliminated. The permeability influenced by slippage of gas molecule along the pore or fracture wall was corrected by using the Klinkenberg formula, and the coal matrix shrinkage induced change of permeability was quantitatively educed. The result shows that the permeability...

Parallel experiments for permeability of helium and methane under confining pressure were carried out. By controlling the effective stress, the problem of permeability decreasing caused by fluid pressure decreasing and gas desorption was eliminated. The permeability influenced by slippage of gas molecule along the pore or fracture wall was corrected by using the Klinkenberg formula, and the coal matrix shrinkage induced change of permeability was quantitatively educed. The result shows that the permeability increment induced by coal matrix shrinkage increases with the increase of absolute permeability and decreases in logarithm with the decrease of fluid pressure; The absolute permeability of helium is greater than that of methane.

在具有围限压力的情况下进行了煤岩体氦气和甲烷渗透率的平行实验 ;采用控制有效应力的方法 ,消除了因流体压力降低和气体解吸引起的渗透率变低问题 ;同时 ,利用克林伯格公式 ,校正了因气体分子沿壁面滑移而受影响的渗透率 ,并定量地推导了煤基质收缩引起的渗透率变化情况 .结果表明 :渗透率增量随绝对渗透率的增加而增大 ,随流体压力的减少而呈对数形式减少 ;煤岩体氦气的绝对渗透率大于甲烷的克氏渗透率 ,在有效应力不变的情况下 ,流体压力愈小 ,滑脱效应愈明显 ;滑脱效应引起的渗透率增量越大 ;氦气滑脱效应大于甲烷

Based on macrofracture observation, measurements of mechanic parameter and stress permeability experiment of the upper main coal reservoirs in the central and southern part of the Qinshui Basin in Shanxi Province, the mathematical models for predicting the relationship between permeability and face densities, occurrence and width of fractures were established, respectively. The recently crustal stress situation was simulated with FLAC 3D software, the mathematical model for predicting the relationship between...

Based on macrofracture observation, measurements of mechanic parameter and stress permeability experiment of the upper main coal reservoirs in the central and southern part of the Qinshui Basin in Shanxi Province, the mathematical models for predicting the relationship between permeability and face densities, occurrence and width of fractures were established, respectively. The recently crustal stress situation was simulated with FLAC 3D software, the mathematical model for predicting the relationship between the recently crustal stress and permeability was also established integrating the data of coal bed methane testing permeability, and permeability of the upper main coal reservoirs in the studied region was systematically predicted. The characteristics of coal matrix shrinkage in various coal ranks were revealed by means of adsorption/swelling experiment, the coupling mathematical model among effective stress effect, coal matrix shrinkage effect and permeability was established, and the dynamic change of permeability was simulated during the coalbed methane development.

通过对山西沁水盆地中 南部上主煤层宏观裂隙观测 ,力学参数测量和应力渗透率实验 ,分别建立了裂隙面密度、裂隙产状、裂隙宽度与煤储层渗透率之间的预测数学模型 ;利用FLAC— 3D软件 ,模拟了该区上主煤层内现代地应力状态 ,结合煤层气试井渗透率资料 ,构建了应力与渗透率之间关系预测的数学模型 ,并对该区上主煤层渗透率进行了全面预测。通过吸附膨胀实验 ,揭示了各煤类煤基质的收缩特征 ,构建了有效应力、煤基质收缩与渗透率之间的耦合数学模型 ,并对煤层气开发过程中渗透率动态变化进行了数值模拟。

Based on the adsorbing-swelling experiments of coal samples, the self-adjusting effects of lean coal to antracite were revealed. Then, the influence of the effects on coal reservoir permeability was analysed and the coupling mathematical model between the effective-stress effect, coal-matrix shrinkage effect and permeability was established. The degressive rule of high-rank coal reservoir permeability during the coalbed methane recovery and the geological significance of the discovery were discussed.

基于吸附膨胀物理模拟实验,揭示了瘦煤至无烟煤阶段煤基质的自调节特征,分别探讨了煤层气排采过程煤基质收缩和有效应力变化对煤储层渗透率的影响,构建了有效应力、煤基质收缩与煤储层渗透率之间耦合的数学模型,揭示出高煤级煤储层渗透率在煤层气排采过程中的递减变化规律,并讨论了这一发现的地质意义。

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  本文关键词：煤基质收缩对裂隙渗透率影响的新数学模型，由笔耕文化传播整理发布。