| 常用剥蚀厚度恢复法在东营凹陷南坡西部“红层”的应用 |
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| 引用本文： | 张,顺 陈世悦 吴智平,王永诗,李,伟,罗,阳 侯旭波,张,林.常用剥蚀厚度恢复法在东营凹陷南坡西部“红层”的应用[J].中国地质,2015(2):720-736. |
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| 作者姓名： | 张 顺 陈世悦 吴智平 王永诗 李 伟 罗 阳 侯旭波 张 林 |
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| 作者单位： | 中国石油大学地球科学与技术学院;中石化胜利油田地质科学研究院;中石化胜利油田西部新区研究中心;中石化胜利油田物探研究院 |
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| 基金项目： | 国家自然科学基金项目(41372107);国家重大油气专项课题(2008ZX05006)联合资助 |
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| 摘 要： | 东营凹陷南坡西部是指东营凹陷南坡石村断层以西的部分,孔店期—沙四早期沉积主要是以红色陆相碎屑岩为主的地层,即为通常所说的"红层"。受后期构造活动的影响,沙四下—孔一地层遭受不同程度的剥蚀,根据剥蚀厚度恢复方法的应用结果及适用性分析认为:厚度趋势法主要用于对剥蚀厚度区间和剥蚀范围进行标定,选用泥岩声波时差法和沉积速率比值法对剥蚀厚度数值的区间进行厘定。在凸起区及纯化构造带"红层"顶部削截明显区可直接使用厚度趋势法;靠近林南断层上升盘和高青平南断层上升盘的区域,选用声波时差法恢复"红层"顶部剥蚀厚度的效果好于其他构造带;平方王潜山构造带优选沉积速率法恢复"红层"尤其是沙四下亚段剥蚀厚度;优化的孔隙度法适合对孔隙度较大凸起区的沙四下亚段剥蚀厚度进行较为准确的标定;包裹体测温法和镜质体反射率法的恢复结果为少数单井数据点,仅作为参考。
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| 关 键 词： | 东营凹陷 不整合 剥蚀厚度 “红层” |
The application of the erosion thickness restoration method to red beds in the western part of the south slope in Dongying Depression |
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| ZHANG Shun,CHEN Shi-yue,WU Zhi-ping,WANG Yong-shi,LI Wei,LUO Yang,HOU Xu-bo,ZHANG Lin.The application of the erosion thickness restoration method to red beds in the western part of the south slope in Dongying Depression[J].Chinese Geology,2015(2):720-736. |
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| Authors: | ZHANG Shun CHEN Shi-yue WU Zhi-ping WANG Yong-shi LI Wei LUO Yang HOU Xu-bo ZHANG Lin |
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| Institution: | ZHANG Shun;CHEN Shi-yue;WU Zhi-ping;WANG Yong-shi;LI Wei;LUO Yang;HOU Xu-bo;ZHANG Lin;College of Geo-Resources and Information, China University of Petroleum;Geophysical Research Institute of Shengli Oilfield;Research Center of New District in West China of Shengli Oilfield;Geological Scientific Research Institute of Shengli Oilfield; |
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| Abstract: | Abstract: The sedimentary rocks from Kongdian Formation to the early period of the fourth member of Shahejie Formation in the western part of the south slope of Dongying Depression consist of a set of red beds mainly comprising red terrestrial clastic sediments. Based on an analysis of applicability of erosion thickness with different restoration methods and a comparative evaluation of different methods for restoring erosion thickness, the authors have found that the tectonic cross section method can be mainly used to define the erosion thickness interval and eroding range of calibration, the mudstone acoustic time and deposition rate method is suitable for the identification of the numerical interval of erosion thickness, the acoustic interval transit time method is better than other methods in the area near the uplifted block of Linnan fault and Gaoqingpingnan fault, the optimization deposition rate method is better than other methods in Pingfangwang area, and the optimized porosity method is more accurate in the red layers, especially in the lower member of Es4 formation. The results from inclusion thermometry testing method and vitrinite reflectance method can only be regarded as the single well data points for reference. |
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