| 川中中侏罗统凉高山组-下沙溪庙组储层特征 |
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| 引用本文： | 郝毅,倪超,陈薇,谷明峰,厚刚福.川中中侏罗统凉高山组-下沙溪庙组储层特征[J].四川地质学报,2013(2):154-157,172. |
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| 作者姓名： | 郝毅 倪超 陈薇 谷明峰 厚刚福 |
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| 作者单位： | 中国石油杭州地质研究院,杭州310023 |
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| 摘 要： | 以川中地区钻井岩心及露头剖面样品的镜下岩石学特征为基础,对川中中侏罗统凉高山组-下沙溪庙组储层进行了研究,认为储层类型主要为孔隙-裂缝型,而次生溶蚀孔及裂缝提供了最主要的储集空间。储层的发育主要受到沉积微相、物源方向、成岩作用、溶蚀作用以及构造破裂作用等因素控制。其中沉积微相和物源方向是储层发育的物质基础;溶蚀作用及构造破裂作用是储层改善的关键因素;而压实、压溶、胶结、交代等成岩作用则对储层的发育是不利的。
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| 关 键 词： | 中侏罗统 凉高山组 下沙溪庙组 储层特征 川中地区 |
Reservoir Characteristics and Control Factors of the Middle Jurassic Lianggaoshan and Lower Shaximiao Formations in Central Sichuan |
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| HAO Yi,NI Chao,CHEN Wei,GU Ming-feng,HOU Gang-fu.Reservoir Characteristics and Control Factors of the Middle Jurassic Lianggaoshan and Lower Shaximiao Formations in Central Sichuan[J].Acta Geologica Sichuan,2013(2):154-157,172. |
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| Authors: | HAO Yi NI Chao CHEN Wei GU Ming-feng HOU Gang-fu |
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| Institution: | (Hangzhou Research Institute of Petroleum Geology, PetroChina, Hangzhou 310023) |
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| Abstract: | This paper deals with reservoir characteristics and control factors of the Middle Jurassic Lianggaoshan Formation and Lower Shaximiao Formation based on lithologic characteristics, micro-area and experimental analysis of samples from outcrops and drilling cores in the central Sichuan basin. Study of mineral composition, structural feature, interstitial matter and physical property indicates that pore-fracture is the main reservoir type, the secondary solution pore and fracture are the main pore space. The reservoir was controlled by sedimentary facies, source direction, diagenesis, denudation, tectonic disruption and so on. Sedimentary micro- facies and source direction are environment basements of the reservoir, while solution and tectonic fracture are the key factors that improve the reservoir. Diagenesis such as compaction, pressure solution, cementation and replacement are disadvantages for the reservoir. |
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| Keywords: | Middle Jurassic Lianggaoshan Formation Lower Shaximiao Formation Reservoir Characteristic Central Sichuan |
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