| 东营凹陷民丰北带古近系沙三段成岩演化及其对储层物性的影响 |
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| 引用本文： | 操应长,陈林,王艳忠,隋风贵.东营凹陷民丰北带古近系沙三段成岩演化及其对储层物性的影响[J].中国石油大学学报(自然科学版),2011,35(5):6-13. |
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| 作者姓名： | 操应长 陈林 王艳忠 隋风贵 |
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| 作者单位： | 1. 中国石油大学地球科学与技术学院,山东青岛,266555
2. 中国石油大学地球科学与技术学院,山东青岛266555;中国石化胜利油田西部新区研究中心,山东东营257015 |
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| 基金项目： | 国家油气重大专项课题，国家自然科学基金 |
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| 摘 要： | 综合利用岩石薄片、埋藏史及流体包裹体等资料,对民丰北带古近系沙三段成岩演化及其对储层物性的影响进行研究。结果表明:沙三段沉积初期至距今38 Ma成岩作用主要为压实作用,距今38～32 Ma发生第一期酸性溶解,距今32～25 Ma发生石英溶解、碳酸盐胶结及第一期油气充注,距今25～2 Ma发生第二期酸性溶解及第二期油气充注,距今约2 Ma发生晚期碳酸盐胶结,距今2 Ma至现今发生第三期酸性溶解及第三期油气充注;对储层物性演化影响较大的主要有压实作用、碳酸盐胶结、酸性溶解及油气充注;第一期油气充注发生在碳酸盐胶结的早中期,抑制了碳酸盐继续胶结,使孔隙得以保存,未发生油气充注或充注弱的储层中碳酸盐胶结强烈,孔隙多大量损失,现今物性较差。
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| 关 键 词： | 成岩演化 沙三段 民丰北带 东营凹陷 |
Diagenetic evolution of Es3 reservoir and its influence on property in the northern Minfeng sub-sag of Dongying sag |
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| CAO Ying-chang,CHEN Lin,WANG Yan-zhong,SUI Feng-gui.Diagenetic evolution of Es3 reservoir and its influence on property in the northern Minfeng sub-sag of Dongying sag[J].Journal of China University of Petroleum,2011,35(5):6-13. |
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| Authors: | CAO Ying-chang CHEN Lin WANG Yan-zhong SUI Feng-gui |
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| Institution: | CAO Ying-chang1,CHEN Lin1,2,WANG Yan-zhong1,SUI Feng-gui1,2 (1.School of Geosciences in China University of Petroleum,Qingdao 266555,China,2.Western New Prospect Research Center,Shengli Oilfield,Dingying 257015,China) |
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| Abstract: | Through the analysis of lots of rock thin sections of Es3 formation in the northern Minfeng sub-sag of Dongying sag,combined with the homogenization temperature analysis of fluid-inclusion and burial history,the process of diagenetic evolution and its influence on the reservoir property were studied.The diagenetic sequence is: from the beginning of the deposition of Es3 to 38 Ma ago,the main type of diagenesis is compaction;from 38 to 32 Ma ago,the first phase of acid dissolution;from 32 to 25 Ma ago,quartz... |
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| Keywords: | diagenesis evolution Es3 north of Minfeng sub-sag Dongying sag |
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