石油实验地质Issue(4)：442-449,8.DOI:10.11781/sysydz201404442
二连盆地赛汉塔拉凹陷白垩系火山岩储集层特征及分布预测
Characteristics and distribution prediction of Cretaceous volcanic reservoirs in Saihantala Sag, Erlian Basin
摘要
Abstract
With core, thin slice and other analysis methods, this paper analyzed the characteristics of Cretaceous volcanic reservoirs in the Saihantala Sag of the Erlian Basin from lithology, lithofacies, pore type, reservoir heterogeneity, etc. After establishing the relationship between geology and seismic data, this paper predicted some favorable reservoirs of the study region through seismic inversion and seismic attribute analysis methods such as frequency-divided inversion, correlation length analysis and so on. The results showed that volcanic rocks mainly developed in Member 3 of A’ ershan Formation of the Lower Cretaceous in the Saihantala Sag, with andesite as the main lithology. Reservoir space types included pores, apricot kernel inner pores, dissolved pores, shrinkage cracks and structural fractures;pore-fissure associations included pore type, fissure-pore type, fissure and vuggy type, fissure type; eruption facies were widely distributed while explosion and volcanic sedimentary facies distributed limitedly;the upper subfacies of eruption facies had excellent reservoir and oil-bearing property; favorable reser-voirs distributed along the Zhabu Fault and the upper part of the Member 3 of the A’ ershan Formation of the Lower Cretaceous of Sai-60 well block showed great potential; hydrocarbon accumulation model belonged to the model that faults transported hydrocarbon and reservoirs located outside source rocks.关键词
火山岩/火山岩相/火山岩储集层/储集层非均质性/储集层预测/赛汉塔拉凹陷/二连盆地Key words
volcanic rocks/volcanic rock facies/volcanic reservoir/reservoir heterogeneity/reservoir predic-tion/Saihantala Sag/Erlian Basin分类
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李浩,高先志,杨德相,朱超,韦庆亮,张丽..二连盆地赛汉塔拉凹陷白垩系火山岩储集层特征及分布预测[J].石油实验地质,2014,(4):442-449,8.基金项目
中国石油“十一五”基础研究课题“二连盆地新层系、新领域油气地质特征综合研究”（ P2010154）资助。 （）
