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低渗透
相关语句
  low permeability
    Fluid-Solid Coupling Theory of Exploiting Coal Methane and Improving Coal Methane Production by Gas Injection in Low Permeability Reservoir and Its Application
    低渗透煤层气开采与注气增产流固耦合理论及其应用
短句来源
    TYPES AND CHARACTERISTICS OF LOW PERMEABILITY SANDSTONE PESERVOIRS IN CHINA
    中国低渗透砂岩储层类型及地质特征
短句来源
    DISCUSSING ON DYNAMIC RESERVE OF LOW PERMEABILITY GAS RESERVOIR CALCULATED BY PRESSURE BUILD-UP DATA
    压力恢复资料计算低渗透气藏动态储量探讨
短句来源
    LOW PERMEABILITY RESERVOIRS IN TAIBEI SAG,TURPAN-HAMI BASIN:CHARCTERISTICS AND CONTROLLING FACTORS
    吐哈盆地北部凹陷带低渗透储层特征及控制因素
短句来源
    Ascertainment of Partially Rich Oil Gathered Blocks of Low Permeability in Yanchaug Group of East Gansu Area
    陇东地区延长组低渗透油层局部富集区块的确定
短句来源
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  “低渗透”译为未确定词的双语例句
    Testing Study of Improving Seepageflow Laws of Lowseepage Coalbed by Hydratic-cutting Seams
    水力割缝提高低渗透煤层渗透性实验研究
短句来源
    5. By comparison coal seam gas prediction production with trial well production in Xin Ji Coal Mine, Anhui province, the correction, reliability, and practicability of the software are verified.
    五、利用安徽省淮南新集煤层气开发试验区现场试井资料和生产动态数据,通过耦合与非耦合两种情况模拟的结果与实际试井实测结果比较,双重介质流固耦合模型计算的气、水产量变化规律与实际更为接近,比较真实地反映低渗透煤储层特征煤层甲烷的运移规律,更有利于指导低渗透煤层气的开采。
短句来源
    It is illustrated that the new way is easy to explain early stage pressure data,and remove non-unique of matching to improve interpretation accuracy.
    用实例解释说明了新型典型曲线拟合法的应用步骤,表明该方法不仅易于解释早期压力资料,而且能消除拟合的不唯一性,可提高解释精度。 此研究工作对于低渗透致密气藏试井解释具有重要的实际意义。
短句来源
    The vertical permeability and the distribution of the interbeds have a direct innuence on the speed of gas breakthrough and water coning, the determination of perforation interval of the production wells and the prediction of the production indexes.
    低渗透夹层的垂向渗透性及分布范围直接影响着气窜及底水锥进速度,对开发井射孔井段的选择及开发指标预算起着重要作用。
短句来源
    The research on oil base fracturing fluid is very significant in China for water base fracturing fluid has great damage to the water sensitivity light formation with high shale content.
    而水基压裂液对泥质含量高的水敏性低渗透地层伤害极大,故研究油基压裂液在我国具有重大的现实意义。
短句来源
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  low permeability
However, a large volume and high energy consumption are needed in biotransformation, while the low permeability and stability must be solved in the membrane process.
      
For low permeability membranes, instability with respect to monotonic finite-wavelength perturbations is characteristic.
      
In this system a water layer overlies a superheated-steam layer in a reservoir with relatively low permeability located between two parallel high-permeability strata.
      
It is proposed that low permeability of plasma membranes to water in fraction-I seeds results from the predominantly closed aquaporin channels, whereas a higher permeability of weak seeds (fraction II) is due to open channels.
      
Increased magnesium concentration in the secondary cardioplegia did not provide additional benefit to the ischemic myocardium, possibly due to the low permeability of the sarcolemmal membrane to magnesium.
      
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The average radon emanation rate of the whole surface over one year was used for evaluating the radon release of uranium tailings pile as follows:δ = ∫∫δ(s · t)dsdt/ ∫∫dsdtThe effective of radon protection cover depends on the shape and property of the tailings pile, the pro perties of covering and the control of air vadose in the pile. It was indicated that the covering with low diffusion coefficient, small porosity and bad permeability was suitable to cover the pile. The analytical formula of the covering...

The average radon emanation rate of the whole surface over one year was used for evaluating the radon release of uranium tailings pile as follows:δ = ∫∫δ(s · t)dsdt/ ∫∫dsdtThe effective of radon protection cover depends on the shape and property of the tailings pile, the pro perties of covering and the control of air vadose in the pile. It was indicated that the covering with low diffusion coefficient, small porosity and bad permeability was suitable to cover the pile. The analytical formula of the covering layer thickness was given.

对铀尾矿堆的氡析出进行评价应采用全年全面积的平均氡析出率(?),即覆盖铀尾矿堆的防氡效率取决于该堆的性状、覆盖材料的性质和对空气渗流的控制程度。扩散系数小、孔隙度低、渗透性差的材料适于做覆盖材料。最后,文中给出了覆盖厚度的解析表达式。

Low permeability sandstone reservoirs generally are defined as oil reservoirs with gaspermeability of less than 50md,in China. They can be further graded into three types basedon values of permeability and development scheme. Accroding to their geological occurrence,low permeability sandstone reservoirs in Chinacan be classified into three categories:primary low permeability reservoirs,secondary lowpermeability reservoirs and fractured low permeability reservoirs. Reservoir description andevaluation would be...

Low permeability sandstone reservoirs generally are defined as oil reservoirs with gaspermeability of less than 50md,in China. They can be further graded into three types basedon values of permeability and development scheme. Accroding to their geological occurrence,low permeability sandstone reservoirs in Chinacan be classified into three categories:primary low permeability reservoirs,secondary lowpermeability reservoirs and fractured low permeability reservoirs. Reservoir description andevaluation would be different in different types of low permeability sandstone reservoirs.The characteristics of low permeability sanstone reservoirs in China are small diameterof pore throats,high capillary pressure,low oil saturation,high clay content,and easily sub-jecting formation damage to reduce producibility. The maturity of sediments of reservoirs islow,and their diagenetic maturity is high.Many low permeability sandstone reseroirs are lowresistance oil reservoirs,lithologic trap reservoirs,and have natural fractures. As discribedabove,they will result in some of difficulty for reservoir study and development.

低渗透砂岩储层系指空气渗透率小于50md的含油砂岩储层,按其渗透率大小及开采方式可细分为三类;另根据地质成因,我国低渗透砂岩储层分为三种类型,即原生低渗透储层、次生低渗透储层和裂缝性低渗透储层。不同成因类型的低渗透砂岩储层,其储层描述与评价方法各异。我国低渗透砂岩储层的地质特点:沉积物成熟度低,成岩成熟度高;孔喉半径小,毛管压力高;原始含油饱和度低;粘土矿物含量高,在钻井、完井和开采过程中极易造成伤害。大多数低透储层测井反映为低电阻率,以岩性圈闭及岩性一构造圈闭油藏为主,天然裂缝比较发育。因此,认识和开采此类油藏难度较大。

Low permeability gas pool,especially carbonate one has big change in vertical and horizontal,and complex pore structure,strong heterogeneity. So it's difficult to calculate gas reserve by traditional dynamic method in early development stage. A method of using early stage pressure build-up data to calculate muti-well system raserve in low permeability gas reservoir is proposed. The principle of this method is that the control raserve and reserve abandance of every well are obtained to draw the so gram of the...

Low permeability gas pool,especially carbonate one has big change in vertical and horizontal,and complex pore structure,strong heterogeneity. So it's difficult to calculate gas reserve by traditional dynamic method in early development stage. A method of using early stage pressure build-up data to calculate muti-well system raserve in low permeability gas reservoir is proposed. The principle of this method is that the control raserve and reserve abandance of every well are obtained to draw the so gram of the gas pool reserve abundance according to the pressure differential curve of unstable testing, then the reserve is obtained by surface integral. The application in Tr' gas reservoir of Moxi indicates that the reserve calculated by this method is well coincident with the reserve of gas pool appraising program.

低渗透气藏,尤其是碳酸盐岩低渗透气藏,其储集层纵横向变化大,孔隙结构复杂,非均质性强,这就决定了在气藏开发早期很难用传统的动态法来计算气藏储量。为此,作者提出一种利用早期压力恢复资料计算低渗透气藏多井系统储量的方法。此方法是根据矿场不稳定试井的压差曲线法求得单井控制储量及储量丰度,并作出气藏储量丰度等值线图,然后根据面积积分求得储量。通过在磨溪雷一~1气藏的应用,表明用此法计算的储量与气藏评价方案的储量对比吻合很好。

 
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