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中亚煤成气聚集域主要包括孟什拉克、卡拉库姆、塔吉克-阿富汗、费尔干纳、伊犁、准噶尔、塔里木、吐哈和三塘湖诸盆地。这些盆地在相似的大地构造背景下成盆,并广泛沉积了中、下佚罗统煤系烃源岩。在其中许多盆地发现了与该套源岩有关的大量煤成气和煤成油。研究证明,中亚煤成气聚集域中、下佚罗统的沉积中心、生气强度中心和暗色泥岩发育中心具有基本迭合一致性。源岩干酪报以腐殖型(Ⅲ型)为主,有机碳含量通常为1%~2%。
Central Asian coal-to-gas accumulation mainly includes Menshrake, Karakum, Tajikistan-Afghanistan, Fergana, Ili, Junggar, Tarim, Tuha and Santanghu basins. These basins formed basins in the context of similar tectonic settings and extensively deposited middle- and lower-loess coal measures of source rocks. In many of these basins, a significant amount of coal-to-gas and coal-to-oil associated with this source rock was found. Studies have shown that there is a basic congruence between sedimentary centers, gas intensity centers and dark mudstone development centers in the coal deposits of Central Asian coal-formed gas. Source rock cheese reported humus (Ⅲ type), organic carbon content is usually 1% to 2%.