摘要
太古界潜山储层岩性非均质性强,储层物性在径向和纵向上均存在较大差异,双重孔隙介质特征不明显。采用双重孔隙介质油藏模型及复合油藏模型,对渤海太古界潜山3口测试井进行实测不稳定试井分析,压力历史与模型曲线拟合效果较好,说明试井解释参数准确合理;对测试曲线对比分析,表现出表皮系数的差异性;测试数据相关性分析获得测试井地层系数和测试产能相关性趋势明显,指数式拟合相关系数达到0.9556,可对潜山层位气井产能进行预测和评价。该分析可为本区域凝析气藏的储层评价和动态开发提供可靠依据。
The Archaean buried hill reservoir is characterized by strong lithologic heterogeneity,great differences of reservoir physical properties in radial and vertical directions,and no obvious characteristics of dual porosity media.In this paper,the dual porosity medium reservoir model and composite reservoir model are applied to analyze the unstable well testing of three test wells in the study area.The fitting effect between the pressure history and the model curve is great,indicating that the well testing interpretation parameters are accurate and reasonable.The comparative analysis of the test curves shows the difference of skin coefficient.The correlation analysis of test data shows an obvious correlation trend between formation coefficient and test productivity of test wells,and the exponential fitting correlation coefficient reaches 0.9556,which can predict and evaluate the productivity of gas wells in buried hill horizon.This analysis can provide a reliable basis for reservoir evaluation and dynamic development of condensate gas reservoirs in this area.
作者
周道禧
张兴华
陈光峰
ZHOU Daoxi;ZHANG Xinghua;CHEN Guangfeng(Engineering Technology Branch,CNOOC EnerTech-Drilling&Production Co.,Tianjin 300459,China;Tianjin Branch,CNOOC(China)Ltd.,Tianjin 300452,China)
出处
《油气井测试》
2022年第2期67-73,共7页
Well Testing
基金
中海石油(中国)有限公司“七年行动计划”重大科技专项“渤海油田上产4000万吨新领域勘探关键技术”部分研究成果(CNOOC-KJ 135 ZDXM36 TJ 08 TJ)。
关键词
潜山储层
试井解释
双重孔隙介质
特征曲线
产能
储层评价
压力系数
buried hill reservoir
well testing interpretation
dual porosity media
characteristic curve
production capacity
reservoir evaluation
pressure coefficient
