砂岩

我国砂岩型铀矿工艺特性研究

Technological characteristics of malmstone - type uranium deposit in China

大姚铜矿床位于盆地北部，是滇中砂岩型铜矿最好的矿化集中区。

Dayao copper deposit locating in the north of the basin is the best mineralizing concentration area of malmstone copper in the middle of Yunnan province .

黏土和砂岩都是不牢固的岩石构造。

Both clay and sandstone are unstable rock formations .

在居住区后面，北边和西边陡然高耸着砂岩悬崖。

Behind the habitations , the sandstone cliffs rose abruptly to the north and west .

该河边充填着具交错层理的砂岩。

This channel is filled with cross-bedded sandstone .

卡迪砂岩是岩屑砂岩，由燧石，石英、石英岩、硅化泥板岩和其它岩石碎屑颗粒所组成。

The cardium sandstone is lithic , being composed of grains of chert , quartz , quartzite , silicified argillite , and other rock fragments .

低渗透压力条件下砂岩渗透性质的CT试验

Permeability experiment of sandstone under low seepage pressures by X-ray CT test

用microsoftexcel在砂岩的三角分类图上完成碎屑成分投点

Composition plots in a triangle for the classification of sandstones by Microsoft Excel

砂岩基质酸化中HF与石英的反应动力学

Reaction Kinetics of HF and Quarz Sand During Sandstone Matrix Acidizing

以某砂岩CT试验为例，进行了岩土CT图像量化描述。

One of sandstone is taken as example to illustrate the quantitative description of the geotechnical CT image based on these techniques .

结果表明，储层岩石为长石质岩屑砂岩，成岩作用进入早成岩B亚期；

It indicates that the reservoir is of feldspathic litharenite rock , and its diagenesis is in the B substage of diagenetic pre period .

鄂尔多斯盆地DS式砂岩型铀矿综合找矿模型研究

Study on integrated DS-type prospecting model of sandstone-hosted uranium deposits in Ordos Basin

利用中低压多功能CT专用渗流实验装置，进行了三维应力状态下砂岩的渗流实时CT观测试验研究。

By using the mid-low-pressure multi-function CT special seepage experiment equipment , the experimental study on real-time CT observation of sandstone under seepage and 3D stress is carried out .

红砂岩母质红壤侵蚀作用的~（137）Cs法初步研究

Preliminary Estimate of Soil Erosion Rate on Red Soil Developed From Red Sandstone Using ~ ( 137 ) Cs Measurements

计算结果表明：美国诺模方程能够很好的用于估算砒砂岩土壤的K值，而对黄土和风沙土的估算误差较大。

The results show that the Normal Equation is suitable for estimating the value of soil erodibility factor , whereas there is relatively large estimation error for Loess and Sandy soil .

最后介绍了砂岩型铀矿综合评价中3S技术的应用流程与方法。

Finally , the application flow and methods of 3S techniques to the integrated evaluation of sandstone-type uranium deposits are introduced .

文章最后探讨了地沥青及油浸砂岩（主要还原剂为CH4）具有还原作用能力的热力学机理。

The reduction thermodynamics mechanism of the land-bitumen and oil-soaked sandstone ( take CH4 as reductant ) is also discussed .

针对渗透率低于10-3μm2天然低渗透砂岩岩心，在改造的气体渗透率测定仪上进行含水岩样中气体渗流规律的室内实验。

Gas percolation in sandstone cores with permeability lower than 10-3 μ m2 has been studied with water-bearing samples and modified gas permeability analyzer .

SU气田砂岩低电阻率气层形成原因复杂，气水层识别也非常困难。

Since the geneses of low resistivity gas zone with sandstones are complex in SU gas field , it is difficult to indentify the gas zone and water zone .

基于地震资料的AVO反演研究进一步证实了该地区Shannon砂岩储层顶部地震反射振幅随炮检距的改变而变化的规律。

AVO inversion modeling based on seismic data consequentially confirms such a pattern of amplitude variation with offset in seismic reflection on the top of Shannon reservoir sandstone .

通过螺旋CT机以及与其配套的实时三轴加载和渗透压力设备对砂岩进行各种应力状态下的应变特性试验，反映出不同应力状态下的砂岩的应变特性有很大不同。

Through the study which is based on devices including the multislice spiral CT ( MSCT ) and real-time loading machine and seepage machine , the strain properties of sandstone under uniaxial-triaxial compressive and seepage pressure conditions are found to be different from each other .

试验结果一致表明了该砂岩骨料具有潜在的ASR活性，其碱活性主要来自于玉髓状微晶石英和波状消光石英。

The experimental results congruously show that the sandstone aggregate is alkali-silica reactive , and the reactivity mainly results from chalcedonic microcrystalline quartz and undulated extinction quartz .

介绍了长庆油田低渗透砂岩油气藏CO2泡沫压裂的室内研究与现场试验情况，阐述了长庆油气田CO2泡沫压裂的施工工艺、施工参数、液体体系及试验效果。

This paper introduced interior research and spot experiment of the CO 2 bubble fracturing in sand oil and gas pools with low permeability in Changqing oilfield , set forth its construction technology , construction parameters , liquid system and construction effect .

巴喀油田中侏罗统砂岩属特低渗透裂缝孔隙型储集层，平均渗透率为0.3×10-3μm2；

Sandstone reservoir of Middle Jurassic in Baka oil field is of lowest permeability , which is fracture and pore , and the average permeability is only 0.3 × 10 - 3 μ m 2 on the ground .

如，澳大利亚西北部Kimberley盆地中未变质的古元古代砂岩中自生磷钇矿的SHRIMP定年将成岩作用限定在7Ma的误差范围之内。

The SHRIMP dating on the authigenic xenotimes in Paleo Proterozoic un metamorphosed sandstone in Kimberley Basin of Northwestern Australia limits the depositional age within an error of 7 Ma .

A-15化合物低温电阻率反常行为的探讨混合泥质砂岩通用电阻率模型综合研究

A STUDY ON THE ANOMALY OF LOW-TEMPERATURE ELECTRICAL RESISTIVITY IN A-15 COMPOUNDS Comprehensive Research on Generalized Resistivity Models in Laminated and Dispersed Shaly Sands

实践证明，用Wyllie公式计算合流体砂岩的孔隙度是行之有效的方法。

Practice proves the feasibility of calculating the porosity of fluid-filled sand - stone by Wyllie formula .

应用MATLAB工具，采用IMEX模拟器，在考虑流固耦合情况下对老19块馆陶组疏松砂岩油藏进行了数值模拟、历史拟合和剩余油分布研究；

Applying IMEX simulator and MATLAB 6.5 , under the consideration of fluid-solid coupling , researches of numerical simulation and remaining oil distribution were conducted in Guantao group Lao 19 faulted block unconsolidated sandstone reservoir .

研究结果表明，砂岩表面的初始润湿性对它们之间的相互作用有一定的影响，CTAB可以改变砂岩表面的润湿性，使亲水表面变为中性，亲油表面变为亲水表面；

The research results show ; the initial wettability of sandstone surface has certain effect on the mutual action , CTAB can change the wettability of sandstone surface from water-wet surface to neutral one , and oil-wet surface to water-wet one ;

盐湖等深流沉积。风暴重力流、纵向重力流和滑塌重力流中的“ABAB”序和“BBB”序中&细砂岩是油气聚集的有利场所。

The " ABAB "," BBB " sequences middle-fine grained sandstones in longitudinal gravity flows , slide gravity flows and storm gravity flows are favorable for oil and gas accumulation .