油气优势运移通道形成“三要素”分析——以苏北盆地高邮凹陷XJZ油田为例

Three factors controlling petroleum migration pathways:A case study of XJZ oilfield in the Gaoyou Sag, North Jiangsu Basin

李鹤永 田坤 邱旭明 刘启东 刘震 宋丽艳

Li Heyong Tian Kun Qiu Xuming Liu Qidong Liu Zhen Song Liyan

中国石化 江苏油田分公司, 江苏 扬州 225012 2. 中国石油大学 石油天然气成藏机理教育部重点实验室, 北京 102249

SINOPEC Jiangsu Oilfield Branch Company, Yangzhou, Jiangsu 225012, China 2. Key Laboratory for Hydrocarbon Accumulation Mechanism of Ministry of Education, University of Petroleum, Beijing 102249, China

油气优势运移通道研究是勘探目标评价的重要内容，其形成主要受输导层的非均质性、通道产状和运移动力3种“要素”控制。结合计算分析和针对苏北盆地高邮凹陷XJZ油田的油气运移模拟实验，进一步论述了油气优势运移通道形成中“三要素”的作用机理。“三要素”中“动力”要素是核心，控制着油气运移的趋势和方向；“产状”要素对“动力”要素起约束作用；“非均质性”要素决定着油气能否运移以及运移速度。油气优势运移通道实际上是“三要素”综合作用的结果。

The analysis of prevailingpetroleum migration pathways can help evaluate petroleum exploration targets. Three factors control migration pathways, including the heterogeneity of carrier beds, the attitude of migration pathways and fluid dynamic force. A case study was made in the XJZ oilfieldin the Gaoyou Sag, North Jiangsu Basin, to considerthe controlling effects on petroleum migration pathways. Fluid dynamic force plays a core role and controls the direction of petroleum migration. The attitude of pathways constrainsfluid dynamic force. The he-terogeneity of carrier beds determines whether petroleum can migrate and the velocity of migration. Petroleum migration pathways are determined bythe interaction of three factors.

中国石油化工股份有限公司项目“苏北盆地构造体系、演化与成藏研究”（P15077）和江苏油田分公司项目“汉留断裂带油气富集规律研究及圈闭评价”（JS14001）联合资助。

https://doi.org/10.11781/sysydz201605577