The gas porosity of section plane was characterized with scanning electron microscopy (SEM).
用扫描电镜(SEM)表征了材料剖面气孔的形态结构。
Tests show that coal with larger porosity, lower strength and higher velocity of gas desorption is more dangerous in hazard of outburst.
试验表明突出危险煤较非危险煤孔隙率大，强度小，且具有更大的瓦斯解吸速度。
Porosity is the result of gas in the metal.
气孔是金属中的气体存在的结果。
Gas reservoir in Xujiahe Section 2 in west Sichuan are low porosity, low permeability, deep, high formation pore and fracture pressure, etc.
川西须家河组2段气藏属于低渗低孔致密深层气藏，地层压力和破裂压力高。
The reasons resulting in the shrinkage porosity, gas-hole and impacted sand in bronze castings were analyzed.
分析了锡青铜叶轮铸件出现的缩孔、气孔、冲砂等缺陷的原因。
It is theoretically considered that reservoir gas-bearing makes interval transit time porosity and density porosity increase and neutron porosity decrease.
理论上认为，储层含气使声波时差孔隙度和密度孔隙度增大，使中子孔隙度减少。
Recognizing that the solubility of gas is greater in the liquid state than in the solid state, the subject of weld porosity is relevant to fusion zone discussion.
认识到溶解度的气体是更大的，在液体状态，比在固体状态下，受焊缝孔隙率是相关的熔合区的讨论。
The research shows that anti pressure of the gas is concerned with the permeability of porous medium (the porosity and the hole diameter), the infiltration speed, and the infiltration length.
研究表明气体反压力与多孔介质的透过率(即孔隙率和孔径)、渗流速度、渗流长度有关。
The variation of CHGR with depth is available from the calibration of the porosity, gas saturation of electric log interpretation of the reservoir and hydrocarbon gases expansion coefficient.
经储集层段测并解释孔隙度、含气饱和度及天然气膨胀系数等校正，可作出岩石含烃浓度随深度剖面变化的成果图。
The effects of composition and pressure of its precursor on the properties, such as gas permeability, porosity, and electric resistivity, were studied.
研究了配料组成和前驱体成型压力对多孔碳板的气体透过性能、孔隙率、和电导率等指标影响。
Dazhangtuo underground gas storage takes the sands of condensate reservoir as storing beds. The beds have the characteristics of pressure shortfall and high porosity and permeability.
大张坨地下储气库是以凝析油气藏的砂岩作为储层的，该储层具有压力亏空和孔隙度、渗透率高的特点。
The gas effect on porosity derived from acoustic formation factor formula should not be neglected.
本文通过考察天然气对声波地层因素公式求孔隙度的影响，表明这种影响是不可忽视的。
But it will fail to recognize the gas bearing bed buried deeper by the two methods as its porosity log feature is not obvious, especially when density porosity is lower than neutron porosity.
但是，对埋藏较深的气层而言，由于其孔隙度曲线特征并不明显，故用常规方法识别十分困难，特别是当密度孔隙低于中子孔隙度时，上述两方法识别气层均失败。
And study the influence of welding speed and active gas for welding porosity defect.
着重研究了焊接速度与活性气体对气孔形成的影响关系。
That part of the effect of gas on the neutron porosity measurement that is not explained by differences in hydrogen index.
天然气对中子孔隙度测量的影响不能由含氢指数的差别来解释。
The corroboration of effective reservoir lower limit in reserves calculation respects parameters influence effective reservoir thickness, porosity and gas saturation directly.
在储量计算的有关参数中，有效储层下限的确定直接影响有效储层厚度、孔隙度和含气饱和度三个参数。
This article studies this composite technology by taking the geologic features of low porosity and low permeability of tight gas sands in West Sichuan.
结合川西地区致密砂岩气藏低孔渗的地质特点，对复合技术进行了研究。
The relationship between the irreducible water saturation and the porosity and gas column height is put forward in the paper.
文章给出了束缚水饱和度与孔隙度和自由水界面以上高度的关系。
It is considered that Baojiaochang Carboniferous reservoir is featured by low porosity, low permeability and high gas saturation based on the comprehensive evaluation.
综合评价，芭蕉场石炭系储层为为低孔、低渗、高含气饱和度储层。
Many gas reservoirs in Sichuan basin belong to crack porosity one, of which non-uniform is much high.
四川盆地大多数气藏属于裂缝孔隙型气藏，气藏非均质性强。
In high temperature sintering , on the one hand, big across hole is formed by gas closed in porosity that passes through molten glass phase, and mechanical properties is declined.
高温烧结时，一方面，熔化的玻璃相被封闭气孔中的气体穿过形成贯穿大孔洞，削弱高温烧结时的力学性能；
The porosity and permeability of coal-bearing strata have important influence to the exhaust and mining of coal bed gas, but the production of coal bed gas is precondition of its richen.
煤系地层孔隙性和渗透率对煤层气的抽放、排采具有重要影响，但煤层气的生成却是其富集的先决条件。
Different porosity reading on the neutron porosity log for the same formation due to gas in the pore space.
由于孔隙空间存在着气体，同一地层的中子孔隙度测井和密度孔隙度读数不同。
The pore size distribution, the average pore size, the porosity and the gas flux were determined.
采用自制装置分别测定了孔径分布、平均孔径、孔隙率和气体通量。
The gas seepage in the medium is influenced by characteristic particle size, particle size distribution index and porosity simultaneously.
这种介质中的气体渗流同时受到介质的特征粒径、粒径分布指数和孔隙率的影响。
The effective porosity and original gas saturation of gas reservoir are the important parameters in calculating gas reserves.
气层“两度”是指有效孔隙度与原始含气饱和度，它是计算天然气储量的重要参数。
During the Carbonate gas reservoir's numerical simulation process, it is often short of exact and quantitative fracture model, especially porosity and permeability models.
碳酸盐岩油气藏在数值模拟的过程中往往缺少准确定量的裂缝模型，尤其是裂缝孔隙度和渗透率模型。
Positive results have been achieved by applying the new method to the gas exploration in low porosity dolomite reservoirs in Shanganning basin.
该方法用于寻找陕甘宁盆地低孔隙白云岩气藏，获得了明显的地质效果。
Positive results have been achieved by applying the new method to the gas exploration in low porosity dolomite reservoirs in Shanganning basin.
该方法用于寻找陕甘宁盆地低孔隙白云岩气藏，获得了明显的地质效果。
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