乌南油田下油砂山组沉积模式及物源分析  

Depositional model and provenance analysis for the lower Youshashan formation of Wunan Oilfield

作　　者：张琳璞[1] 王宁[1] 于成涛[2] 

机构地区：[1]中石化胜利石油管理局,山东东营257064 [2]中油辽河油田公司,辽宁盘锦124010

出　　处：《特种油气藏》2008年第4期53-57,62,共6页Special Oil & Gas Reservoirs

摘　　要：利用岩心、薄片、粒度及测井解释等资料,对乌南油田新近系下油砂山组沉积模式进行研究,同时结合重矿物、砂岩百分含量资料进行物源分析。确定鸟南油田下油砂山组主要发育洪水-漫湖相、浅水湖泊型三角洲相及风暴岩沉积相,并总结了其沉积相模式。通过对各沉积相、亚相及微相的研究,结合物源方向和特征分析砂体微相演化特点及分布规律,对砂体预测和储量计算具有指导意义。The depositional model has been studied for Neogene lower Youshashan formation of Wunan Oilfield by using core observation,thin section identification,grain size analysis and log interpretation,and the prove- nance is analyzed by combining data of heavy mineral and sand content.The lower Youshashan formation of Wu- nan Oilfield had mainly developed flood -lake facies,shallow lake -deltaic facies,and tempestite sedimentary facies.The evolution features and distribution of the microfacies of sands are analyzed through study of the sedi- mentary facies,intrafacies and microfacies in conjunction with provenance direction and characteristics.This study is of guiding significance to sand prediction and reserves estimation.

关 键 词：洪水-漫湖相 浅水湖泊型三角洲 风暴岩相 沉积模式 物源分析 下油砂山组 乌南 油田 

分 类 号：TE121.3[石油与天然气工程—油气勘探]