Prediction of the favorable blocks and the calcarenaceous sandstone reservoir characteristics of Upper Triassic in middle section of the West Sichuan depression;
川西坳陷中段须四段钙屑砂岩储层特征及有利区块预测
The calcarenaceous sandstone reservoir in the 4th Member of Xujiahe Formation in Fenggu area are of the characteristics of low GR, high resistance and high impedance.
丰谷须四段钙屑砂岩储层具有低伽玛、高电阻、高波阻抗等特点,储层含气后波阻抗值有所降低,但仍高于或接近于泥岩。
On the basis of thin sections identification and data statistics,the lithology,diagenesis,petrophysical properties and pore development properties for calcarenaceous sandstone in Fenggu area are analyzed in detail.
钙屑砂岩在川西坳陷须家河组四段分布特别广,几乎每个构造、每口井都能见到。
Through analysis of sandstone fragments in triaxial tests with different confining pressures by sieve method and specific gravity method, it is found that the distribution of sandstone fragments is fractal.
对不同围压的实验中的砂岩破碎碎屑，用筛析法和比重计法分析砂岩碎屑的分布，发现砂岩破碎碎屑是分形分布。
subfeldspathic lithic arenite
亚长石质岩屑砂屑岩
lithic arkosic wacke
岩屑长石砂岩质杂砂岩
sparry intraclastic calcarenite
亮晶内碎屑砂屑灰岩
lithic subarkosic wacke
岩屑亚长石砂岩质杂砂岩
sandy algal biosparite
砂质藻屑生物亮晶灰岩
sandy algal biomicrite
砂质藻屑生物微晶灰岩
sandy intrasparite
砂质内碎屑亮晶灰岩
sandy intramicrite
砂质内碎屑微晶灰岩
The cardium sandstone is lithic, being composed of grains of chert, quartz, quartzite, silicified argillite, and other rock fragments.
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。
Thin layers of sandy shale, and carbonaceous fragments are locally present.
局部出现砂质页岩薄层和碳质碎屑。
Detritus usually consists of gravel, sand and clay.
岩屑通常是由砂砾，沙和粘土组成的。
The sediments are detrital and largely of greywacke facies.
沉积岩为碎屑质，大部分属于杂质砂岩相。
Carbonate rocks are predominantly composed of intra-clastic dolostone, chert dolostone and sand-bearing dolostone.
碳酸盐岩以内碎屑白云岩、燧石白云儿和含砂白云岩为主。
Diagenesis and It's Comparative Study of Pyroclastic Rock, Dowsonite-Bearing Sandstone and Common Sandstone in Hailaer Basin;
海拉尔盆地火山碎屑岩、含片钠铝石砂岩与普通砂岩的成岩作用及其比较研究
The cower unit of the Eagle is a wellsorted lithic and glauconitic marine sandstone.
伊格尔砂岩的下部单元是分选良好的岩屑质和海相海绿石质。
packed intramicrite
密集内碎屑微晶灰岩
pellet-bioclastic grainstone
球粒生物屑粒状灰岩
Loose fragments or grains that have been worn away from rock.
岩屑从岩石上磨损下来的疏松的石粒或碎屑
