| 1. | Characteristics of underground gasification of different kinds of coal
不同煤种地下气化特性研究 |
| 2. | Factors influenced to stability of coal underground gasification
影响煤炭地下气化稳定性生产因素 |
| 3. | A preliminary study on the coal underground gasification of shenbei coal field
沈北煤田煤炭地下气化初步探讨 |
| 4. | Rational knowledge and practical operation of the underground gasification of coal
对煤炭地下气化的认识与实践 |
| 5. | Probing into underground gasification of deep coal resource in liaohe oil field
辽河油田深部煤炭资源地下气化的探讨 |
| 6. | Successful practice of underground gasification of coal of xinwen coal field
新汶矿区煤炭地下气化技术的成功实践与启示 |
| 7. | A study on coal seam underground gasification in wanquan coalfield , zhangjiakou city
张家口市万全煤田煤层地下气化开发条件研究 |
| 8. | Application of with comprehensive electric magnetic method for coal underground gasification
煤炭地下气化综合电磁法监测技术的应用 |
| 9. | Research on exploit condition of coal bed underground gasification in wanquan coal field , zhangjiakou
张家口市万全煤田煤层地下气化开发条件研究 |
| 10. | Under general geological study of exploratory development of coalbed gas and underground gasification of coal bed in eastern depression of liaohe basin , authors apply the basic principle of coal geology and the data of vitrinite reflectance and technical analysis of coal to ascertain that coal classification are dominantely the lignite , long - flame coal and gas coal of coal - bearing upper section of third member of shahejie formation , and then dissertate the variational regularity between coal rank and buried depth in vertical and otherness of vertical limit of coal rank in different coal - rich regions
摘要运用煤田地质学基本理论和煤的镜质组反射率值及工业分析等有关数据，确定了辽河盆地东部凹陷古近系沙三段含煤亚段的煤种主要为褐煤、长焰煤和气煤；进而阐述了该煤段垂向上煤级与埋深的变化规律性、不同赋煤区各煤级垂向界限的差异性。 |
