| 准噶尔盆地不整合结构的地球物理响应及油气成藏意义 |
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| 引用本文： | 吴孔友,查明,洪梅.准噶尔盆地不整合结构的地球物理响应及油气成藏意义[J].石油实验地质,2003,25(4):328-332. |
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| 作者姓名： | 吴孔友 查明 洪梅 |
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| 作者单位： | 石油大学, 山东, 东营, 257061 |
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| 基金项目： | 国家自然科学基金项目(40102008)和石油大学博士基金项目共同资助. |
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| 摘 要： | 准噶尔盆地自成盆期以来经历了多期次构造运动,形成数个不整合。这些不整合在剖面上可分为5种类型,它们在地震上具有明显的反射特征。在纵向上,不整合分为3层结构,每层结构发育着多种岩石类型,它们在测井曲线组合上具各自不同的响应。不整合纵向的分层结构构成油气运移的双重通道,同时为油气聚集提供良好的储集空间和圈闭条件。尽管不整合的成藏条件有共同之处,但由于形成各类不整合时的应力强度、应力作用方式及地层变形程度等存在差异,导致不同类型的不整合还具有各自不同的油气成藏模式。
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| 关 键 词： | 运移通道 成藏模式 地球物理响应 不整合结构 准噶尔盆地 |
| 文章编号： | 1001-6112(2003)04-0328-05 |
| 收稿时间： | 2003-03-10 |
| 修稿时间： | 2003年3月10日 |
RELATIONSHIP OF RESERVOIR FORMATION WITH UNCONFORMITIES AND THEIR GEOPHYSICAL RESPONDENCE IN THE JUNGGAR BASIN |
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| Affiliation: | University of Petroleum, Dongying, Shandong 257061, China |
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| Abstract: | Several unconformities were formed as a result of several tectonic movements in the Junggar Basin. Five types of unconformity were recognized, with different reflection characters in seismic sections for each one. Unconformity structures are vertically divided into three layers, and every layer is consisted of several kinds of rocks with different logging responses in electrofacies. These unconformities not only are the pathways for oil and gas migration, but also provide accommodation for oil and gas accumulation. Although reservoir-forming conditions of the unconformity have the similar parts, the different types of unconformity show different oil and gas reservoir-forming patterns due to different stress behaviours and deformation levels when the unconformities were formed. |
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| Keywords: | migration pathway reservoir-forming pattern geophysical response unconformity structure the Junggar Basin |
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