准噶尔盆地油气运移基本方式与机理探讨 |
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引用本文: | 卢华复,王胜利,贾承造.准噶尔盆地油气运移基本方式与机理探讨[J].地学前缘,2007,14(6):143-150. |
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作者姓名: | 卢华复 王胜利 贾承造 |
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基金项目: | 国家自然科学基金资助项目(40602014) |
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摘 要: | 在准噶尔盆地,以断裂为主,联合输导层(储层和不整合)的“断控体系”是油气运移的基本固体格架。文中从油气形成和演化过程中的有机-无机相互作用入手,分析了准噶尔盆地油气运移的基本方式和机理。结果表明,油气在输导层运移过程中,随有机质热演化、成岩演化,以及距油源断裂的远近不同,伴随着的水量有着显著变化。流体性质的差异导致了不同的储层水岩反应和油气成藏机制,据此,可将油气在输导层中的运移方式划分出两种基本类型:机械-侵蚀型和机械型。而在断裂带地区,断裂对储层中高压流体系统的沟通,触发了“减压沸腾”作用,伴随着流体沸腾,油气呈幕式运移聚集。
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关 键 词: | 油气运移 方式和机理 含油气流体 断裂 准噶尔盆地 |
Discussion on basic styles and mechanism of petroleum fluid migration in the Junggar Basin |
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Abstract: | In the Junggar Basin, petroleum generally migrates along reservoir rocks (including unconformity) and faults. In this paper, the basic styles and mechanism of petroleum migration were analyzed, based on organic-inorganic interaction during hydrocarbon formation and evolution. It is shown that in reservoir rocks, based on the characteristics of petro-fluid, oil-gas migration styles vary in mechanical-solution and mechanical characteristics, respectively. The factors controlling this fluid heterogeneity inclu... |
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Keywords: | petroleum migration style and mechanism petro-fluid fault the Junggar Basin |
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