| 压实过程中埋深和时间对碎屑岩孔隙度演化的共同影响 |
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| 引用本文： | 刘震,邵新军,金博,李鹤永,许晓明,梁全胜.压实过程中埋深和时间对碎屑岩孔隙度演化的共同影响[J].现代地质,2007,21(1):125-132. |
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| 作者姓名： | 刘震 邵新军 金博 李鹤永 许晓明 梁全胜 |
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| 作者单位： | 中国石油大学,石油天然气成藏机理教育部重点实验室,北京,102249 |
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| 摘 要： | 在相同埋深条件下,由于经历时间不同,地层压实程度将会存在差别。从粘弹塑性体应力—应变模型(Bingham模型)推导出均速埋藏条件下地层孔隙度是埋深和经历时间的双元函数。该函数充分表明,在压实作用阶段,埋藏时间和埋深两个因素对地层孔隙度演化的影响都是非常重要的。为了充分证实这一结论,作者首先分析3个代表性沉积盆地地层孔隙度与埋深和埋藏时间的关系,阐明了除了埋深因素的作用,埋藏时间明显影响到了地层孔隙度的改变。另外,利用沉积物实验室压实物理模拟实验结果与实际盆地地层压实特征的差异性,进一步证明了压实过程中承压时间对压实程度起着重要的作用。任一深度地层孔隙度与埋深的表面关系不能掩盖地层孔隙度受埋藏过程控制的实质,即地层孔隙度受埋藏时间和深度的双重影响。
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| 关 键 词： | 埋深 埋藏时间 孔隙度 压实作用 |
| 文章编号： | 1000-8527(2007)01-0125-08 |
| 收稿时间： | 10 20 2006 12:00AM |
| 修稿时间： | 12 15 2006 12:00AM |
Co-effect of Depth and Burial Time on the Evolution of Porosity for Classic Rocks During the Stage of Compaction |
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| LIU Zhen,SHAO Xin-jun,JIN Bo,LI He-yong,XU Xiao-ming,LIANG Quan-sheng.Co-effect of Depth and Burial Time on the Evolution of Porosity for Classic Rocks During the Stage of Compaction[J].Geoscience——Journal of Graduate School,China University of Geosciences,2007,21(1):125-132. |
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| Authors: | LIU Zhen SHAO Xin-jun JIN Bo LI He-yong XU Xiao-ming LIANG Quan-sheng |
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| Institution: | Key Laboratory for Hydrocarbon Accumulation Mechanism of Education Ministry, China University of Petroleum, Belling 102249, China |
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| Abstract: | Same as the burial depth,the burial time also has great effect on the evolution of porosity of the classic rocks during compaction,which is clarified by three aspects in this paper.The first,the author draws an inference that porosity of stratum is a function of buried depth and buried time.The second,the relationship between the porosity of mudstone and the buried depth,and the relationship between the porosity and buried time in three representative sedimentary basins gives an indication of the effects of depth and burial time on the evolution of porosity for the classic rocks.The third,the results from the simulative compaction of sediment in the lab further prove that the time during compaction influences the degree of the compaction greatly.So the porosity of the classic rocks during compaction is the dual function of depth and burial time in sedimentary basins. |
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| Keywords: | depth burial time porosity compaction process |
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