北部湾盆地西南凹陷澜洲12-D油田流一段滑塌型重力流沉积模式新认识

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中图分类号：P618.13 文献标识码：A 文章编号：2097-5465（2026）01-0043-09

Abstract：Throughtheanalysisoftectonicseinganddepositionalseting，thedepositionalsystemofthefirstmemberofheLuhe FormationinWeizhou12-DOilfieldintheSouthwestDepresionisedefied，whichisthesumpinggravityflowdepositring totheclasificationschemesofdeep-watergravityflowsedimentaryunitsathomeandabroad，andmaking fulluseofthe comprehensiveinterpretationandappicationofcore，loggingandssmicdata，theesystemsandfoursedimentaryunitsedivided andidentifiedinthestudyarea，whichareclastictongue，lobe，clasticflowblockandturbiditethinsanddevelopedunderthe systemofblocktransporation，clasticflowandturbiditycurrnt.Agravityflowdepositionmodelofslumpingtypecontrolledbyboth debrisflowandturbiditycurentisstablished.Itprovidesareliablegeologicalbasisforthesubsequentexplorationanddevelopent of the oilfield and the adjustment of the oilfield potential tapping.

Keywords;slumpinggravityflow；sedimentationmodel；reservoiroffirstmemberofLiushagangFormation；southwestsagof Weizhou

1研究区概况

南海西部存在众多的难于动用的低渗油气藏，单井产能低，开发难度大，绝大部分处于未开发状态，开发潜力巨大。（剩余8655字）