Sentence examples for low gas content from inspiring English sources

A typical low-rank coal bed is characterized by multiple layers, large thicknesses, high permeability and low gas content.

Gas drainage can transform outburst-prone coal seams with high gas content into non-outburst coal seams with low gas content.

With the application of the technologies of gas drainage in the roof, the difficulties in gas control for high intensive top-coal caving mining operations, known as "low gas content, high gas emission", are solved.

Gas drainage can transform outburst coal seams with high gas content into non-outburst seams with low gas content, thereby promoting the safe and efficient exploitation of coal (as shown in Fig. 1).

The major constraints of tight oil are low maturity, heavy oil quality, low gas content, low formation pressure, and poor fluid mobility as well as difficulty in exploiting and producing.

Moreover, the Longmaxi shale in well Heye1 is characterized by low gas content and mainly adsorbed gas, indicating great loss of free gas resulting from poor preservation in the brittle zone in complicated structure areas.

Although the origins of the CBM gas pool in the Huaibei Coalfield remain controversial, the findings of this study along with the mining practices indicate that the deposition of thick redbeds can be treated as indicative of low gas contents in the coal mines, which has a significant meaning for the engineering of coal mine gas control.

For working faces of coal seams with low gas contents, which have higher intensification, the designed production capacity can be achieved according to the pattern of 'one coal mine, one mining area, and one working face'.

Generally, the seam which has the lowest gas content and little or no outburst risk is the perfect choice.

When the Longmaxi shale is located in the brittle zone, the bore hole often does not have commercial productivity and shale gas components are mainly adsorbed gas with very low free gas content.

In the case that there is only one seam or no protective seam is available, a roadway needs to be special excavation in the roof of the seam and a large number of cross-measure boreholes need to be drilled from the roadway into the seam for gas drainage to ensure that the seam is extracted in the condition of low seam gas content.