巴彦浩特盆地石炭系沉积相及沉积演化  

Carboniferous Sedimentary Evolution and Reservoir Estimation in Bayanhot Basin

作　　者：卫平生[1] 李天顺[2] 李安春[3] 王建功[2] 

机构地区：[1]中国科学院海洋研究所 [2]中国石油勘探开发研究院西北分院,兰州730020 [3]中国科学院研究生院,北京100039

出　　处：《沉积学报》2005年第2期240-247,共8页Acta Sedimentologica Sinica

摘　　要：研究了巴彦浩特盆地石炭系的沉积类型及特征,探讨了石炭系不同阶段的沉积演化。巴彦浩特盆地石炭系发育泻湖—潮坪、三角洲—扇三角洲及滨—浅海三大沉积体系。沉积演化经历了早期蒸发性海湾、中期浅海盆地、晚期陆缘广海的过程。泻湖相堡坝亚相、三角洲相前缘亚相以及滨海相席状砂亚相是砂岩储层分布和发育的最有利相带。This paper researched sedimentary styles and characteristics and discussed about Carboniferous sedimentary evolution of different stages, and, furthermore, analyzed characteristics and distribution of carboniferous clastic reservoir, and main controlling elements of geophysical attribution in order to carry out integrative estimation of reservoir in Bayanhot basin. Bayanhot basin has three depositional systems including lagoon-tidal flat, delta-fan delta and offshore shallow sea. Sedimentary evolution underwent three stages included in the evaporation sea bay of the earlier stage, shallow sea basin of the middle stage, extensive sea of the continental margin. Sand bar sub-facies of lagoon, front delta, sheet sandstone of offshore sea are the best sedimentary facies belts for the oil ＆ gas accumulation.

关 键 词：巴彦浩特盆地 石炭系 沉积演化 

分 类 号：P512.2[天文地球—地质学]