孤北洼陷孔店组与沙河街组四段的多重地层划分
|
摘要
对孤北洼陷孔店组、沙四段生物、岩石、电性及地震地层等多重地层划分进行详细的研究,研究结果表明孔三段属灰紫色冲积产物,孔二段发育典型的暗色泥岩,沙四下亚段为红色砂、泥岩,沙四上亚段主要是灰色泥岩,夹有砂岩;电测结果表明:进入沙四下亚段时电阻率曲线相应抬起,沙四上亚段整体是一个低阻段,沙四段顶界划在下斜坡电阻的底部。孤北洼陷地层划分时要注重多重地层划分的方法,单一资料用于划分地层难于反映真实面貌。
Based on the study of the paleontologic, lithological, electrical, seismic stratigraphic features of the Kongdian Formation and the Member 4 of the Shahejie Formation (Sha4), a detailed study of the multiple stratigraphic division was made. And the research results are applied to the practice of logging field, showing that the Member 3 of Kongdian Formation(Kong3) is composed of purple alluvium, the Member 2 of Kongdian Formation(Kong2) consists of typical dark-colored mudstone, the Lower Submember of Sha4 is formed chiefly of grey mudstone intercalated with sandstone. The results of electric logging indicate that when entering the Lower Submember of Sha4, electric resistivity carves rise correspondingly and the Upper Submember of Sha4 is, as a whole, a low resistivity member. The top boundary of Sha4 is placed at the basal part of the lower slope electric resistivity. It is pointed out at the same time in this paper that during the stratigraphic division of the Gubei Depression, much attention must be paid to the methods for the multiple stratigraphic division and it is difficult to reflect true aspect if only using a single method to divide strata.
Based on the study of the paleontologic, lithological, electrical, seismic stratigraphic features of the Kongdian Formation and the Member 4 of the Shahejie Formation (Sha4), a detailed study of the multiple stratigraphic division was made. And the research results are applied to the practice of logging field, showing that the Member 3 of Kongdian Formation(Kong3) is composed of purple alluvium, the Member 2 of Kongdian Formation(Kong2) consists of typical dark-colored mudstone, the Lower Submember of Sha4 is formed chiefly of grey mudstone intercalated with sandstone. The results of electric logging indicate that when entering the Lower Submember of Sha4, electric resistivity carves rise correspondingly and the Upper Submember of Sha4 is, as a whole, a low resistivity member. The top boundary of Sha4 is placed at the basal part of the lower slope electric resistivity. It is pointed out at the same time in this paper that during the stratigraphic division of the Gubei Depression, much attention must be paid to the methods for the multiple stratigraphic division and it is difficult to reflect true aspect if only using a single method to divide strata.
引文
李德生.1981.渤海湾盆地的地质构造特征与油气分布规律.见:李德生.1992.李德生石油地质论文集.北京:石油工业出版社.267—283
柳永清,李寅,刘晓文.1997.层序地层旋回地层与多重地层划分———以京西冀北下古生界为例.中国区域地质,16(1):81—88
宋传春,江志德.1996.车西地区沙四,沙三段界线的多重地层划分.复式油气田,(4):50—54
王秉海,钱凯编.1992.胜利油区地质研究与勘探实践.东营:石油大学出版社.1—346
吴崇筠,薛叔浩.1993.中国含油气盆地沉积学.北京:石油工业出版社.1—484
Li De-sheng.1981.Feature of geologic structure and distributionrule in Bohai-gulf Basin.In:Li De-sheng ed.Symposiumon pe-troleumgeology.Beijing:PetroleumIndustry Press.267—283
Liu Yong-qing,Li Yin&Liu Xiao-wen.1997.Sequence stratigraph-ic,cyclic stratigraphic and multiple stratigraphic division:a casestudy of the Lower Paleozoic in western Beijing and northernHebei.Regional Geology of China,16(1):81—88
Song Chuan-chun&Jiang Zhi-de.1996.Multiple stratigraphic divi-sion of the Member3-Member4of Shahejie Formation in theChexi area.Multiple Gas and Oil Field,(4):50—54
Wang Bing-hai&Qian Kai eds.1992.Geologic research and explora-tion practice about Shengli Oil Field.Dongying:The PetroleumUniversity Press.1—346
Wu Chong-yun&Xue Shu-hao.1993.Sedi mentary geology of oil-and gas-bearing basin in China.Beijing:Petroleum IndustryPress.1—484
柳永清,李寅,刘晓文.1997.层序地层旋回地层与多重地层划分———以京西冀北下古生界为例.中国区域地质,16(1):81—88
宋传春,江志德.1996.车西地区沙四,沙三段界线的多重地层划分.复式油气田,(4):50—54
王秉海,钱凯编.1992.胜利油区地质研究与勘探实践.东营:石油大学出版社.1—346
吴崇筠,薛叔浩.1993.中国含油气盆地沉积学.北京:石油工业出版社.1—484
Li De-sheng.1981.Feature of geologic structure and distributionrule in Bohai-gulf Basin.In:Li De-sheng ed.Symposiumon pe-troleumgeology.Beijing:PetroleumIndustry Press.267—283
Liu Yong-qing,Li Yin&Liu Xiao-wen.1997.Sequence stratigraph-ic,cyclic stratigraphic and multiple stratigraphic division:a casestudy of the Lower Paleozoic in western Beijing and northernHebei.Regional Geology of China,16(1):81—88
Song Chuan-chun&Jiang Zhi-de.1996.Multiple stratigraphic divi-sion of the Member3-Member4of Shahejie Formation in theChexi area.Multiple Gas and Oil Field,(4):50—54
Wang Bing-hai&Qian Kai eds.1992.Geologic research and explora-tion practice about Shengli Oil Field.Dongying:The PetroleumUniversity Press.1—346
Wu Chong-yun&Xue Shu-hao.1993.Sedi mentary geology of oil-and gas-bearing basin in China.Beijing:Petroleum IndustryPress.1—484
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心