大庆石油地质与开发2025，Vol.44Issue(5)：108-115,8.DOI:10.19597/J.ISSN.1000-3754.202505004
大庆长垣南部葡萄花‒敖包塔地区葡萄花油层整体构造解释及油气聚集有利区优选
Overall structural interpretation of Putaohua reservoir and favorable area optimization for hydrocarbon accumulation in Putaohua-Aobaota area of southern Daqing Placanticline
摘要
Abstract
Putaohua-Aobaota area in southern Daqing Placanticline has abundant oil and gas resources,but the structure is complex,and overall understanding is unclear.Previous studies mostly take 3D seismic survey areas as research units,which proved inadequate for multiple seismic survey areas,large-scale studied areas and areas with uniform well distribution.This method led to inconsistent structural understanding at the boundaries between differ-ent studied areas and high ambiguity,affecting the selection of favorable areas.By using multi-survey area splicing technology based on time difference-varying spatial correction,3D fault interpretation technology based on isochro-nous variance bodies and multi-velocity fusion velocity field construction technology,current status of fault develop-ment,development sequences and structural trap types in Putaohua reservoir of Putaohua-Aobaota area are studied in detail,deepening the understandings on the overall structural characteristics.The results show that,the current structure of Putaohua reservoir is an asymmetric anticline near N-S strike,with a general strike of higher in the north and lower in the south.The structural dip angle increases from the axis to the two wings,with steep western slopes and gentle eastern slopes.The dominant fault types are normal faults and their combinations,with strike pri-marily near N-S.The reverse fault closure areas in the slope zones are favorable traps.The research provides guid-ance for the optimization of favorable evaluation targets in Putaohua-Aoguta area and surrounding oilfields.关键词
葡萄花‒敖包塔地区/葡萄花油层/构造解释/精细构造特征/有利圈闭/大庆长垣Key words
Putaohua-Aoguta area/Putahua reservoir/structural interpretation/fine structural characteristics/fa-vorable trap/Daqing Placanticline分类
能源科技引用本文复制引用
周嘉宇..大庆长垣南部葡萄花‒敖包塔地区葡萄花油层整体构造解释及油气聚集有利区优选[J].大庆石油地质与开发,2025,44(5):108-115,8.基金项目
中国石油天然气股份有限公司攻关性应用型科技专项"中高渗油田特高含水期大幅度提高采收率技术研究"(2023ZZ22). （2023ZZ22）
