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.
出处
《特种油气藏》
CAS
CSCD
2008年第4期53-57,62,共6页
Special Oil & Gas Reservoirs
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
flood-lake facies
shallow lake-delta
tempestite facies
depositional model
provenance analysis
lower Youshashan formation
Wunan Oilfield
