通过岩芯相—测井相—地震相—分析化验数据对比,结合砂砾岩沉积野外考察实践综合归纳分析,认为上乌尔禾组同生逆断层控制的冲积扇—扇三角洲砂砾岩沉积体系整体呈进积式沉积,具"冲积扇扇根(槽流带)—冲积扇扇中/扇三角洲平原(辫流带)—扇三角洲前缘(水下分流带)—前扇三角洲/滨浅湖(夹杂水下扇)"相序特征,发育槽流、泥石流/砂质碎屑流、辫状河道、水下分流河道、扇面水道五种典型砂砾岩沉积微相类型.同生逆断层带不断抬升剥蚀的累积效应,使近物源区冲积扇扇根沉积整体减薄,同时使同生逆断层控制沉积相带分异的趋势越来越明显.泥质含量是控制挤压背景下砂砾岩储层质量的关键因素,贫泥砂砾岩储层成岩压实减孔效应弱,剩余粒间孔发育,且粗粒级颗粒内部多发育压碎缝沟通粒间孔隙,储层质量最佳.依据储集空间组合类型将有利储集相带分为原生粒间孔—压碎缝发育带、原生粒间孔—次生溶孔发育带两大类.前者主要分布于构造高部位近断裂带—中上斜坡带;后者主要分布于中下部斜坡带.%Based on the analysis of core facies, logging facies, seismic facies and analysis assay data, with the field practice induction of glutenite sedimentary,this paper draw conclusions that:Fan-fan delta glutenite sedimentary sys-tem under the control of contemporaneous reverse thrust show the progradation deposition on the whole in P 3 w. Indica-ting the phase-sequence characteristics called "Alluvial fan toe ( channel flow )-Alluvial fan middle/Fan delta plain (braided stream)-Fan delta front(distributary belt) - former fan delta/shallow lake (be mixed up with subaqueous fan)".with the development of such five typical glutenite sedimentary microfacies types as channel flow, debris flow/sandy debris flow, braided channel, underwater distributary channel, sectoral waterway. The cumulative effect of con-temporaneous reverse fault belt continuous uplifting and denudation, make the sedimentary of fan toe in alluvial fan thinning, with more and more obvious trend of contemporaneous reverse fault controlling the sedimentary facies differ-entiation. Shale content is the key control factors of glutenite reservoir quality under the extrusion background. The di-agenetic compaction cut hole effect in poor mud glutenite reservoir is weak, with the higher residual intergranular pore development and the higher development level of crush seam in coarse particles communicating intergranular pore, the reservoir quality of poor mud glutenite is best. Based on combination of reservoir space,the favorable reservoir facies belt can be divided into two types:primary intergranular pore-crush seam development zones and primary intergranu-lar pore-secondary dissolution pore development zones. The former mainly distributed in the fault zone-upper slope belt near structural high position, the latter mainly distributed in middle-lower slope belt.
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