渤海中部中生界火山岩储层研究及靶区预测

渤海海域渤中凹陷围区中生界火山岩潜山成藏条件优越，但勘探程度较低，储层研究制约了勘探步伐。针对 火山岩储层发育主控因素及有利勘探区带预测等问题，本次研究综合地球物理、石油地质等方面的资料，从岩性岩相 及储集空间类型入手进行分析，认为相同条件下酸性溢流相熔岩储层较为发育，而基性溢流相熔岩及爆发相凝灰岩储 层发育与否与后期改造作用的强度密切相关，岩性岩相与构造运动共同控制渤中凹陷围区中生界火山岩储层发育。 根据分析结论，结合工区中生界火山岩岩性岩相与勘探程度，建议加强单井特征岩性岩相与区域构造运动强度分析， 优选中生界火山岩潜山勘探靶区。

Research and Targets Prediction of Mesozoic Volcanic Reservoir in#br# Central Bohai Sea Area

Buried hill of Mesozoic volcanic rocks are of excellent reservoir forming conditions，but exploration degree was not adequate which was confined by study of reservoir. Focusing on factors which affect reservoir development，combined analysis of geophysics and petroleum geology materials，we began with lithology，lithofacies and types of reservoir spaces， and concluded that acid lava reservoir was better developed while reservoir of basic lava and tuff was closely related with the intensity of secondary transformation on the same condition. Furthermore，lithology，lithofacies and structural movements controlled the devolvement of reservoirs. Based on the results of the above analysis，combined with the lithology and exploration stage of Mesozoic volcanic in study area，favorable exploration targets could be determined with analysis focused on recognition of characteristic lithology and lithofacies in single well，and analysis on intensity of regional structural moments.