porosity

Chinese translation: 孔隙度，孔隙率

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English term or phrase:	porosity
Chinese translation:	孔隙度，孔隙率
Entered by:	Yurek

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00:54 Oct 24, 2008

English to Chinese translations [PRO]
Science - Petroleum Eng/Sci
Additional field(s): Geology

English term or phrase: porosity

Definition from Canadian Association Petroleum Producers:
The volume of spaces within rock that might contain oil and gas (like the amount of water a sponge can hold); the open or void space within rock – usually expressed as a percentage of the total rock volume. Thus porosity measures the capacity of the rock to hold natural gas, crude oil or water.

Example sentence(s):

The porosity profile in any individual well depends on the maximum effective stress, which is generally determined by the maximum burial depth. U.S. Geological Survey
Carbonate reservoirs have lower values of median and maximum porosity for a given burial depth, probably because of greater chemical reactivity of carbonate minerals relative to quartz and the resulting lower resistance to chemical compaction and associated cementation. GeoScienceWorld
Porosity and permeability reduction due to burial and compaction acts differently on different sediment types. Sandstone is more resistant to porosity and perm reduction due to compaction, whereas shales and siltstone are generally more prone to perm reduction. All Experts

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孔隙度，孔隙率

Definition:
又称孔隙率。土或岩石的孔隙体积与包括孔隙在内的土或岩石的总体积之比。

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Yurek
China

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孔隙度，孔隙率

Yurek

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孔隙度，孔隙率

Definition from 孔隙度:
又称孔隙率。土或岩石的孔隙体积与包括孔隙在内的土或岩石的总体积之比。

Example sentence(s):

计算每种材料的孔隙度，方法是用能倒入烧杯中的水的体积除以材料的总体积。然后用百分数表示结果。例如，如果能在 350 ml 的砾石中加入 90 ml 的水，孔隙度则为 90 ml ----------- = .2571 = 25.71% 350 ml - 孔隙度
又称储层孔隙率。衡量油气储层岩石中所含孔隙体积多少的一种参数,孔隙度反映岩石储存流体的能力,通常用(D表示。单位是用百分数或小数表示的比值,依其所指孔隙类型的不同,又可分为总孔隙度和有效孔隙度。最常用的是有效孔隙度故因而直称其为孔隙度,它是评价储油层和计算储量的一个重要指标。影响孔隙度的因素主要是颗粒大小的差异(分选程度)、排列方式(主要反映压实程度)、颗粒形状、胶结程度及类型、粘土含量等,而与颗粒直径的大小无关。由等直径球粒堆积成的理想体,无论其粒径大小,只要它们的排列方式相同,其孔隙度是一样的,数值介于25 9％～47 6％之间。天然砂岩的孔隙度最大不超过40％,一般为16％～30％；碳酸盐岩孔隙度在3％～30％之问；松散粘土的孔隙度可以高达40％～50％以上,甚至更高。储油层按其孔隙度的大小可划分为以下五等：>20％,极好；15％～20％,好；l0％～l5％,中等；5％～l0％,差； - 储层孔隙度
根据超压体系的地质特征，综合考虑超压、机械压实作用、胶结作用及溶解作用对储层孔隙度的影响，建立了超压地层的储层孔隙度预测模型。渤海湾盆地歧北凹陷的应用结果表明，储层孔隙度的预测误差随填隙物体积分数的增加而增加，当储层填隙物体积分数小于10.0%时，预测误差小于2.0%，达到了国外多元线性储层孔隙度预测模型的精度。该模型所用的参数较少，可用于新区盆地储层孔隙度的预测。 - 超压地层储层孔隙度的预测方�

Yurek
China
Local time: 19:59
Native speaker of:

Chinese
PRO pts in category: 4

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