渤海湾盆地A油田新近系明下段沉积特征及演化模式

doi:10.13278/j.cnki.jjuese.201704105

摘要/Abstract

摘要： 渤海湾盆地A油田新近系明下段Ⅱ—Ⅴ油组是其主力含油层位。通过观察分析岩心资料的沉积构造特征、岩矿特征和粒度特征、测井形态、地球物理属性等特征，综合判定其主要发育曲流河和浅水三角洲两种沉积相类型，油田范围内曲流河主要发育河道、决口扇、天然堤和泛滥平原4种沉积微相，浅水三角洲主要发育水下分支河道、水下天然堤、河口坝和分流间湾4种沉积微相。通过分析沉积相特征，结合高分辨率层序地层学观点，对A油田明下Ⅱ—Ⅴ油组的垂向演化特征进行了探讨，结果表明：处于长周期上升半旋回的Ⅴ油组曲流河呈条带状分布；处于长周期下降半旋回初期的Ⅳ油组浅水三角洲平面呈坨状，内部砂体连通性差；处于长周期下降半旋回中期的Ⅲ油组浅水三角洲平面呈朵叶状，砂体以侧向叠置为主；处于长周期下降半旋回晚期的Ⅱ油组浅水三角洲平面呈鸟足状，砂体以垂向叠置为主。最终提出该油田沉积演化模式。

关键词: 渤海湾盆地, 明下段, 曲流河, 浅水三角洲, 沉积演化模式

Abstract: Ⅱ-Ⅴ oil groups are the main oil layers in the lower part of Minghuazhen Formation(N₁m^L) in Oilfiled A, Bohai. By observation and analysis of the characteristics of sedimentological structure, rock and ore, particle size in core, well logging types, geophysical attributes characteristics,the sedimentary environments mainly include meandering river and shallow water delta. The meandering river mainly develops 4 kinds of sedimentary microfacies, which are channel, splay, natural levee and flood plain. But the shallow water delta mainly develops 4 kinds of sedimentary microfacies, which are underwater distributary channel, the underwater natural levee, the mouth bar and interdistributary in oil field range. Through the analysis of the characteristics of sedimentary facies, combined with high resolution sequence stratigraphy, and discussed the vertical evolution characteristics of Ⅱ-Ⅴ oil groups in the lower part of N₁m^L in Oilfiled A, Bohai, we find that meandering river of Ⅴoil group in a long period of ascending half cycle has the characteristic of strip distribution, and shallow water delta distributes a lump taye in the plane, and the internal sandbody has a poor connection, which is developed in Ⅳ oil group in the early stage of a long period of descending half cycle. The shallow water delta distributes a lobate taye in the plane, sand lateral stack, which is developed in Ⅲ oil group in the middle stage of a long period of descending half cycle. The shallow water delta distributes a bird-foot taye in the plane, sand vertical stack, which is developed inⅡoil group in the last stage of a long period of descending half cycle. Finally, it puts forward the model of sedimentary evolution of the oil field.

Key words: Bohai oilfiled, N₁m^L, Meandering River, shallow water delta, sedimentary evolution model

中图分类号:

P631.18

赵汉卿, 张建民, 李栓豹, 周连德, 江远鹏. 渤海湾盆地A油田新近系明下段沉积特征及演化模式[J]. 吉林大学学报(地球科学版), 2017, 47(4): 1021-1029,1046.

Zhao Hanqing, Zhang Jianmin, Li Shuanbao, Zhou Liande, Jiang Yuanpeng. Sedimentary Characteristics and Evolution Models of Lower Part of Minghuazhen Formation in Neogene System in Oilfield A, Bohai Bay Basin[J]. Journal of Jilin University(Earth Science Edition), 2017, 47(4): 1021-1029,1046.

参考文献

[1] 赵翰卿. 大庆油田河流-三角洲沉积的油层对比方法[J]. 大庆石油地质与开发,1988,1 (4):25-31. Zhao Hanqing. Formation Correlation of Fluvial-Deltaic Deposition in Daqing Oil Filed[J].Petroleum Geology&Oilfield Development in Daqing,1988,1(4):25-31.
[2] 周银邦,吴胜和,计秉玉,等. 曲流河储层构型表征研究进展[J]. 地球科学进展,2011,26(7):695-702. Zhou Yinbang, Wu Shenghe, Ji Bingyu, et al. Research Progress on the Characterization of Fluvial Reservoir Architecture[J].Advances in Earth Science,2011,26(7):695-702.
[3] 吴小红,吕修祥,周心怀,等. BZ34油区明下段浅水三角洲沉积特征及其油气勘探意义[J]. 东北石油大学学报, 2009, 33(5):32-36, 40. Wu Xiaohong, Lü Xiuxiang, Zhou Xinhuai, et al. Discovery of the Shallow Delta Sediment in Minghuazhen Formation in BZ34 Oil Fields and Its Significance in Oil and Gas Exploitation[J]. Journal of Northeast Petroleum University, 2009, 33(5): 32- 36, 40.
[4] 朱伟林, 李建平, 周心怀,等. 渤海新近系浅水三角洲沉积体系与大型油气田勘探[J]. 沉积学报, 2008, 26(4):575-582. Zhu Weilin, Li Jianping, Zhou Xinhuai, et al. Neogene Shallow Water Deltaic System and Large Hydrocarbon Accumulations in Bohai Bay, China. [J]. Acta Sedimentologica Sinica, 2008,26(4):575-582.
[5] Lemons D R, Chan M A. Facies Architecture and Sequence Stratigraphy of Fine-Grained Lacustrine Deltas Along the Eastern Margin of Late Pleistocene Lake Bonneville, Northern Utah and Southern Idaho[J]. AAPG Bulletin,1999,83(4): 635-665.
[6] 徐长贵, 姜培海, 武法东,等. 渤中坳陷上第三系三角洲的发现、沉积特征及其油气勘探意义[J]. 沉积学报, 2002, 20(4):588-594. Xu Changgui, Jiang Peihai, Wu Fadong, et al. Bohai Discovery and Sedimentary Characteristics of the Neogene Delta in Bozhong Depression and Its Significance for Oil and Gas Exploration[J]. Acta Sedimentologica Sinica, 2002, 20(4):588-594.
[7] 刘招君,董清水,王嗣敏,等. 陆相层序地层学导论与应用 [M]. 北京:石油工业出版社,2002:1-87. Liu Zhaojun, Dong Qingshui, Wang Simin, et al. Introduction to Continental Sequence Stratigraphy and Application [M]. Beijing:Petroleum Industry Press,2002:1-87.
[8] 刘招君, 胡菲, 孙平昌, 等. 再论陆相三级层序内四分方案及其在油气勘探中的应用[J]. 吉林大学学报 (地球科学版), 2013, 43(1): 1-12. Liu Zhaojun, Hu Fei, Sun Pingchang, et al. Re-Discussion on the Four Division Scheme About Continental Sequence Stratigraphy and Its Application on Oil and Gas Exploration[J]. Journal of Jilin University(Earth Science Edition), 2013, 43(1): 1-12.
[9] 赵汉卿,刘招君,姚树青,等. 基于测井曲线的小波变换定量层序地层单元划分[J].世界地质,2013,32(2):372-378. Zhao Hanqing, Liu Zhaojun, Yao Shuqing, et al. Quantitative Division of Sequence Stratigraphic Units Based on the Wavelet Inversion of Logging Curve[J]. Global Geology,2013,32(2):372-378.
[10] 楼章华,卢庆梅,蔡希源,等. 湖平面升降对浅水三角洲前缘砂体形态的影响[J].沉积学报,1998,16(4):27-31 Lou Zhanghua, Lu Qingmei, Cai Xiyuan, et al. Influence of Lake Level Fluctuation on Sand Body Shapes at Shallow Water Delta Front[J]. Acta Sedimentologica Sinica,1998,16(4):27-31.
[11] 施辉,刘震,张勤学,等. 柴达木盆地西南区古近系浅水三角洲形成条件及砂体特征[J].中南大学学报(自然科学版),2015,46(1):188-198. Shi Hui, Liu Zhen, Zhang Qinxue, et al. Shallow-Water Delta Forming Condition and Sandbody Characteristics in Paleogene of Southwestern Qaidam Basin[J]. Journal of Central South University (Science and Technology),2015,46(1):188-198.
[12] 常文会,赵永刚,卢松. 曲流河环境沉积微相和测井相特征分析[J].天然气工业,2010, 30(2):48-51. Chang Wenhui, Zhao Yonggang, Lu Song. Features of Sedimentary Microfacies and Electrofacies of Meandering River Deposits[J]. Natural Gas Industry, 2010, 30(2):48-51.
[13] 王行运,高云文.樊家川油田河流相储层砂体沉积模式[J].西北大学学报(自然科学版), 2006, 36(4):631-634. Wang Xingyun, Gao Yunwen. The Sediment Mode of the Fluvial Facies Sand Body in Fanjiachuan Oilfield[J]. Journal of Northwest University (Natural Science Edition), 2006, 36(4):631-634.
[14] 吕延防,韦丹宁,孙永河,等. 南堡凹陷断层对中、上部含油组合油气成藏的控制作用[J].吉林大学学报(地球科学版), 2015, 45(4): 971-982.Lü Yanfang, Wei Danning, Sun Yonghe, et al. Control Action of Faults on Hydrocarbon Migration and Accumulation in the Middle and Upper Oil-Bearing Group in Nanpu Sag[J]. Journal of Jilin University(Earth Science Edition), 2015, 45(4): 971-982.
[15] 赵翰卿. 松辽盆地大型叶状三角洲沉积模式[J].大庆石油地质与开发,1987,6 (4): 1-9 Zhao Hanqing. Sedimentary Model of Large Scale Leaf-Shaped Delta in Songliao Basin [J].Petroleum Geology &Oilfield Development in Daqing, 1987, 6(4):1-9.
[16] 加东辉,吴小红,赵利昌,等. 渤中25-1 南油田浅水三角洲各微相粒度特征分析[J].沉积与特提斯地质,2005,25(4):87-94.Jia Donghui, Wu Xiaohong, Zhao Lichang, et al. The Grain Size Analysis for the Shallow Water Delta Microfacies: An Example from One Well in the Bozhong 25-1 Southern Oil Field[J]. Sedimentary Geology and Tethyan Geology, 2005,25(4):87-94.
[17] 朱筱敏,赵东娜,曾洪流,等. 松辽盆地齐家地区青山口组浅水三角洲沉积特征及其地震沉积学响应[J].沉积学报, 2013, 31(5):889-897.Zhu Xiaomin, Zhao Dongna, Zeng Hongliu, et al. Sedimentary Characteristics and Seismic Sedimentologic Responses of Shallow-Water Delta of Qingshankou Formation in Qijia Area,Songliao Basin[J]. Acta Sedimentologica Sinica, 2013, 31(5):889-897.

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