准噶尔盆地夏盐11井区侏罗系三工河组储层特征及主控因素研究

Reservoir characteristics and control factor research of Jurassic Sangonghe in Well block XiaYan 11 Junggar Basin

准噶尔盆地腹部夏盐11井区侏罗系三工河组为碎屑岩储集层,主要岩性为灰色细砂岩为主,孔隙类型以剩余粒间孔为主,次为粒内溶孔。总体说来,储集层物性较差。本文分别从沉积环境、岩石颗粒、碎屑粒度分选、深度、成岩作用及粘土矿物等因素探讨对储层物性的影响。最终结果表明,沉积环境决定着优质储层的发育和分布。

Jurassic Sangonghe in Well block XiaYan 11 Junggar Basin belly Reservoir is composed of clasolite,mainly gray fine sandstone.Pore types are inter-partical and dissolution pores for second.In General,ascribes poor reservoir properties.This article studies reservoir properties factors such as depositional environment,rock particles,Clastic size sorting,depth,diagenesis and clay minerals,etc.The net results demonstrate that depositional environment determines the development and distribution of good reservoirs.