岩性油气藏 ›› 2025, Vol. 37 ›› Issue (5): 111121.doi: 10.12108/yxyqc.20250510
• 地质勘探 • 上一篇
张云峰1, 史晓东2, 刘宗堡3, 杨雪微4, 王鸿军2, 郝彬5
ZHANG Yunfeng1, SHI Xiaodong2, LIU Zongbao3, YANG Xuewei4, WANG Hongjun2, HAO Bin5
摘要: 利用岩心、录井、测井和生产动态等资料,基于构造特征和砂体几何学特征,对松辽盆地龙虎泡油田白垩系构造-岩性圈闭类型进行了识别和划分;从源岩条件、油源断层输导及构造和砂体配置关系对成藏主控因素进行了研究,总结了不同类型圈闭的油气成藏模式。研究结果表明:①龙虎泡油田白垩系构造-岩性圈闭主要发育于葡萄花油层,发育水下分流河道、河口坝、前缘席状砂3种微相,具有北部物源控制的三角洲前缘亚相薄窄砂体特征。②研究区构造-岩性圈闭可分为西部斜坡带断层-岩性圈闭、东部鼻状构造带鼻状构造-岩性圈闭和中部洼陷区断鼻-岩性圈闭三大类,可进一步细分为断层-条带砂体型、断层-片状砂体型、断层-透镜砂体型,鼻状构造-条带砂体型、鼻状构造-片状砂体型、鼻状构造-透镜砂体型,断鼻-条带砂体型和断鼻-片状砂体型等8个亚类。③研究区构造-岩性圈闭的成藏受“源-断-储-势”联合控制,青山口组一段源岩提供了充足的油气资源,油源断裂提供了油气垂向运移通道,构造与砂体配置关系控制了圈闭内的油气富集。④研究区发育“油源断层垂向输导+有利沉积微相富集”的断层-岩性圈闭成藏模式、“砂体侧向输导+正向构造富集”的鼻状构造-岩性圈闭成藏模式以及“断-砂复合输导+连片砂体/厚层砂体富集”的断鼻-岩性圈闭成藏模式。
中图分类号:
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