缅甸某区块始新统沉积相对储层的控制作用分析

On How the Eocene Series Sedimentary Facies in the Studied Area in Burma Affect Reservoirs' Quality

研究区位于缅甸伊洛瓦底盆地中部,是油气勘探的有利地区。通过对研究区始新统不同沉积相带储层特征研究,认为水下分流河道为最有利的储层发育微相;分流河道、辫状河道、河口坝次之;天然堤、决口扇砂体的储层性质相对较差,反映了沉积相对储层的发育特征有一定的控制作用。

The targeted area under research situated in the middle of Irrawaddy Basin, Burma, is a favorable place for oil gas exploration. By studying the characteristics of reservoirs in different sedimentary fades of Eocene series in the researched area, this paper points out that the underwater distributary channels are the best reservoir development microfacies followed by distributary channels, braided channel and river mouth bars while natural levees and splay sand bodies have low reservoir quality which unveils the fact that sedimentary fades do influence the development of reservoirs to some extent.