1) dead-unconsolidated thin sandstone
极松散细砂岩
1.
In order to optimize the parameters of running top coal under differentcoal and gangue fragmental size,on the basis of measuring and analyzing the distribution character of top-coal fragmental size,running top-coal was studied for the coal seam with dead-unconsolidated thin sandstone roof by loose medium model experiment.
为了优化不同煤矸块度条件下的放煤工艺参数,在实测分析顶煤破断块度分布特点的基础上,采用散体模型试验的方法对煤层顶板为极松散细砂岩条件下的放煤工艺进行了研究。
2) soft fine sandstone
松散细砂岩
1.
Rational coal caving step distance setting for fully mechanized longwall top coal caving face under soft fine sandstone roof;
松散细砂岩顶板下综采合理放煤步距的确定
3) sandrock
[英]['sændrɔk] [美]['sænd,rɑk]
松散砂岩
4) packsand
松散钙质细粒砂岩
5) unconsolidated fine siltstone
疏松粉细砂岩
1.
The paper introduced serious sand production actuality of the quaternary gas reservoir located in Sebei Gas Field(SGF),which consists of unconsolidated fine siltstone formations with high content of shale.
介绍了涩北气田第四系高泥质疏松粉细砂岩气藏的出砂现状,通过多年的室内基础理论研究和现场防砂先导性试验成果总结,形成了适合涩北气田的高压一次充填防砂工艺。
2.
Sebei Gas Field(SGF)consists of unconsolidated fine siltstone formations with high content of shale.
针对涩北气田高泥质疏松粉细砂岩气藏高压一次充填防砂中所用携砂盐水用量大、摩阻高、返排难等特点,通过携砂液机理研究和大量的室内实验,研制了携砂液配方,形成了一套适合涩北气田高压一次充填防砂的清洁携砂液体系。
6) unconsolidated sandstone
疏松砂岩
1.
Fracturing sand control technology of unconsolidated sandstone reservoir;
疏松砂岩油藏压裂防砂一体化技术
2.
Study of model for elastic wave velocity of unconsolidated sandstone;
疏松砂岩弹性波速模型的研究
3.
Study on the compressibility of unconsolidated sandstone based on acoustic logging data
基于声波测井资料的疏松砂岩可压性研究
补充资料：燧石,火石,细粒砂岩
CAS：15723-40-7
分子式：SiO2
中文名称：亲有机物粘土；玛瑙；紫晶,水碧,紫水晶；玉髓；燧石,火石,细粒砂岩；大块纯石英晶体,大水晶；蔷薇水晶,蔷薇石英,鞭蓉石
英文名称：silica, crystalline - quartz；agate；alpha-quartz；amethyst；chalcedony；cherts；crystalline silica, quartz；crystallized silicon dioxide；flint；flintshot；free crystalline silica, quartz；gold bond r
分子式：SiO2
中文名称：亲有机物粘土；玛瑙；紫晶,水碧,紫水晶；玉髓；燧石,火石,细粒砂岩；大块纯石英晶体,大水晶；蔷薇水晶,蔷薇石英,鞭蓉石
英文名称：silica, crystalline - quartz；agate；alpha-quartz；amethyst；chalcedony；cherts；crystalline silica, quartz；crystallized silicon dioxide；flint；flintshot；free crystalline silica, quartz；gold bond r
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参考词条