泌阳凹陷隐蔽油气藏勘探技术实践探索

Practice of Subtle Reserovir Exploration Techniques in Miyang Depression

泌阳凹陷是一个中新生代断陷盆地,岩性变化快,断裂发育,油藏类型多。针对泌阳凹陷勘探现状,以人机联作为手段,以三维地震资料、地质和测井资料为基础,以陆相层序地层理论为指导,建立了层序地层格架和油气藏成藏模式,然后对重点地区开展测井约束地震波阻抗反演储层预测,用三维地震解释技术识别圈闭,经综合评价优选有利目标,钻探后取得了良好的经济效益。

Miyang Depression is a Mesozoic-Cenozoic fault basin, where lithologic change is fast, fault is developed, reservoir type is various. In consideration of the situations of exploration in Miyang Depression, sequence straregraphic framework and reservoir forming modes are established by using personal-computer interaction as a tool based on geologic and logging data and guided with the theory of continental sequence stratigraphy. Reservoir prediction is made on, important areas by using wave impedance inversion of logging constrained seism. 3D seismic interpretation technique is used to identify the traps, beneficial targets are selected through integrated economic evaluation. good economic efficiency is achieved in application.