王窑-西河口地区长6油藏沉积相研究

Study on Chang 6 Oil-bearing Formation Sedimentary Facies in Wangyao-Xihekou District

根据大量的岩芯观察及测井曲线分析,研究区长6油层组主要为曲流河三角洲前缘亚相沉积,可将该区三角洲前缘亚相划分为水下分流河道、水下天然堤、水下决口扇、河口砂坝、席状砂以及水下分流间湾等六种沉积微相。其中水下分流河道微相和河口砂坝微相是该区长6的有利储层,水下分流河道砂体和河口坝砂体是该区今后勘探的方向。沉积相分析师研究砂体分布的关键技术,沉积相确定的正确与否直接影响着着对砂体分布规律的认识。

Based on the theory of porous media heat transfer, submarine soil moisture-heat coupling equation is esiablished. The influence of sea water temperature and seepage flow rate on the hot oil pipeline unsteady heat transfer is analyzed, the results show that： the relatively greater the see water seepage flow rate is; the longer the radius of the thermal effect in the seepage flow direction of soil temperature field around the pipeline, the shorter the radius of thermal effect vertical to the seepage flow direction, and with the flow velocity increases, the average temperature throughout the soil region increased.