ND油田火山岩油藏开发技术研究与应用

Study and Applications of Volcanic Reservoir Development Technology in Santanghu Area

在油藏地质综合研究的基础上，形成了火山岩有效储层识别方法，有效层测井解释符合率由58．3％提高到85．7％；形成了火山岩有效储层预测方法，储层预测符合率从60％提高到76．7％；形成了火山体刻画技术，为优化钻井和措施调控提供了理论基础。在前期注水效果分析的基础上，初步形成了火山岩注水开发技术，ND油田轴部区整体注水后，预计可提高采收率6％～8％。研究结果为STH盆地火山岩有效开发提供了技术保障。

On the base of reservoir and geology synthesis researches,the reservoir recognition method of volcanic reservoirs was carried out,and the coincidence rate of effective logging explanation was raised from 58.3% to 85.7%;The anticipation methods of volcanic reservoir were formed,and the coincidence rate of reservoir forecast was raised from 60% to 76.7%.The technique of volcano body depiction was formed,and it provided a theoretical basis for optimizing drilling and measures.Based on the initial effect taken from previous well groups,the tentative technique of water flooding in development of volcanic reservoirs is formed.The predictive EOR efficiency would enhance 6%~8% after water flooding is applied in the whole axial region.It provides technical support for volcanic rock development in Santanghu Area.