Abundant in natural gas sources, Jurassic Shaximiao Formation in west Sichuan Basin is a red sandstone and shale mainly deposited in fluvial, deltaic shoal faces.
四川盆地西部侏罗系沙溪庙组是河流—三角洲—滨浅湖沉积为主的红色砂泥岩系，天然气资源相当丰富。
Fluvial deltaic sandstones is a main reservoir rocks in shengtuo, Gudao, Dongxin oilfield.
河流、三角洲相砂岩为胜坨、孤岛、东辛等油田的主要储集层。
The favourable reservoir sandstones in these gas pools may broadly be assigned to the deltaic front channel mouth bar, deltaic plain distributary channel bar and fluvial channel bar microfacies.
气藏内有利储集砂岩多属三角洲前缘河口砂坝、三角洲平原分流河道砂坝及河流相河道砂坝微相。
Fourthly, the main reservoir of study area is sand bodies of deltaic depositional system and fluvial-lacustrine depositional system.
研究区储层主要为河流—湖泊相和三角洲相砂体沉积。
Fourthly, the main reservoir of study area is sand bodies of deltaic depositional system and fluvial-lacustrine depositional system.
研究区储层主要为河流—湖泊相和三角洲相砂体沉积。
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