特种油气藏2017，Vol.24Issue(5)：21-26,6.DOI:10.3969/j.issn.1006-6535.2017.05.004
牛圈湖油田西山窑Ⅱ砂组沉积特征及有利区预测
Depositional features of sand group Ⅱ in Xishanyao Formation and Prediction of Favorable Regions in Niujuanhu Oilfield
摘要
Abstract
Aiming at the features of fast reservoir lithology changes and apparent control effect of sedimentary micro-facies on hydrocarbon accumulation of the Xishanyao Formation in the Niujuanhu Oilfield of the Santanghu Basin, based on the requirement of oilfield production increase supported by fine sedimentary microfacies,we comprehen-sively applied cores,mud logging,well logging,seismic data and rock slices etc. to finely study the sedimentary microfacies of the sand group Ⅱ in the Xishanyao Formation of the Niujuanhu Oilfield. The study results indicate that the sand group Ⅱ in the Xishanyao Formation of the Niujuanhu Oilfield mainly develops braided river delta front subfacies,followed by front braided river delta subfacies. The south margin of the study area is relatively steeper, with deposit systems of alluvial fans,braided river delta and lacustrine,etc. The north margin is relatively gentler, with deposit system of directly entering lake of the braided river delta. According to analysis of seismic data,rock slices and heavy minerals,it concludes that the reservoir sand bodies are controlled by northern and southern prove-nances,and the east is mainly controlled by the southern provenance (not the northern provenance that was consid-ered by previous researchers). Three predominant reservoir regions are divided in its northeast,northwest and south areas,and they can act as the future exploration and development targets.关键词
辫状河三角洲相/物源/沉积体系/有利区预测/山西窑组/牛圈湖油田Key words
braided river delta facies/provenance/sedimentary system/prediction of favorable region/Xishanyao Formation/Niujuanhu Oilfield分类
能源科技引用本文复制引用
文静,张娜,姚孟多,刘俊田,杨志刚..牛圈湖油田西山窑Ⅱ砂组沉积特征及有利区预测[J].特种油气藏,2017,24(5):21-26,6.基金项目
中国石油科技重大专项"中小型叠合盆地石油地质条件整体评价及勘探技术研究"(2012E-34-04) （2012E-34-04）
