煤层形态

沉积成因的煤层形态与厚度异常的研究

A Study on the Abnormality of the Formation and Thickness of Coal Bed of Sedimentary Origin

这两种薄煤层在形态上有相似之处，容易混淆。

These two kinds are morphologically similar and easy to be mixed up .

分析表明，高斯曲率法可相对真实地反映煤层曲面形态变化，用该方法预测煤层天然裂隙发育区是切实可行的。

It is concluded that the Gaussian curvature method can reflect the shape variation of coal seam curvature , and the method is effective to forecast natural fracture zones in coal seam .

日本钏路煤田的煤层割理形态类似于孤立的直线节理。

The coal cleat pattern in the Kushiro coalfield , Japan , shows some analogy to isolated straight joints .

本文从煤层瓦斯存在形态的研究入手，分析煤层不同区域和生产技术条件下的瓦斯赋存特征与瓦斯涌出的规律性，确定瓦斯抽放主导参数，建立主体抽放系统。

By beginning with the study of the gas existing states in the seam , the paper analyses the law of the existing feature and the discharging of gas in the seam in different areas and under the different production specifications .

银的赋存特征研究煤层内瓦斯赋存形态

On occurrence of silver phase behavior of the natural gas in coal beds

煤层压裂裂缝的形态特征没有固定的深度界限。

The pattern features of the cracks fractured in seam would not have a fixed depth limitation .

煤层流变引起煤层形态、煤厚及煤体结构的变化，并形成各种构造煤。

The rheology of coal seams may cause changes of the coal shape , thickness and structure and moreover , forms various kinds of tectonic coal .