辽河盆地西部凹陷冷家油田沙三段扇三角洲——湖底扇沉积模式

Fan Delta Sublacustrine Fan Sedimentary Models of S 3 Member in Lengjia Oilfield in Liaohe Basin

在详细研究岩心、测井以及室内化验分析等资料的基础上，结合区域构造背景，运用现代沉积学理论和方法，分析了冷家油田沙三段沉积背景和沉积相标志，认为沙三段主要为扇三角洲沉积，其次为湖底扇沉积．建立了沙三段（Ｓ３）各沉积时期的沉积模式，Ｓ３３，Ｓ２３沉积时期为水进型扇三角洲－湖底扇沉积模式，Ｓ１３沉积时期为水退型扇三角洲－湖底扇沉积模式．

On the basis of studying the materials of the drilling core, the logging and the indoor analysis, combining the tectonic background, using of the theory and method of the modern sedimentology, analysing the sedimentary background and the sedimentary facies signs of S 3 member are in Lengjia Oilfield, this paper concluded that the sedimentary types of S 3 member mainly fan delta and sublacustrire fan seeondly, established the sedimentary models of different sedimentary phases in S 3 member, S 3 3 and S 2 3 sedimentary phases develepment transgression fan delta sublacustrine fan models, S 1 3 sedimentary phase development dereliotion fan delta sublacustrine fan models.