东营凹陷坨庄地区T165油藏低压充注的流体包裹体记录

被引：9

作者：

周振柱 ^{[1
]}

陈勇 ^{[2
]}

周瑶琪 ^{[2
]}

机构：

[1] 山东科技大学地球科学与工程学院

[2] 中国石油大学(华东)地球科学与技术学院

来源：

石油实验地质 | 2014年 / 36卷 / 04期

关键词：

油气包裹体; 方解石脉; 低压成藏; 东营凹陷; 渤海湾盆地;

D O I：

暂无

中图分类号：

P618.13 [石油、天然气];

学科分类号：

070403 [天体物理学];

摘要：

东营凹陷坨庄地区深部储层中发育被方解石充填的构造裂缝,方解石脉中油气包裹体丰富。方解石脉中包含2种不同结晶形态的颗粒,它形细晶颗粒和自形中晶颗粒,且2种晶体颗粒中流体包裹体特征也有所差异。通过流体包裹体的镜下观察、显微测温以及PVT模拟恢复了包裹体被捕获时的温压条件,分析了油气成藏的特点:①流体包裹体只记录了一期油气成藏,主要在明化镇组沉积时期;②油气成藏早期,储层压力系数小于1,表现出低压成藏的特点,断层活动产生的泵吸作用是油气充注的主要动力。此外,研究结果表明,不能简单根据储层自生矿物的岩相学特征划分成藏期次。

引用

页码：473 / 478

页数：6

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