Application of the seismic reflection method in detecting the fine-scale geological structure of the Baoding sag,Jizhong depression
-
摘要: 保定凹陷位于渤海湾盆地冀中坳陷西缘,其西侧以太行山山前断裂为界与太行山隆起相邻,查明凹陷内深部构造和精细地质结构,对油气勘探和深部热储调查评价有着重要的意义,同时对太行山山前断裂的发育特征的研究也有一定的帮助。反射地震勘探在深部地质结构探测中具有高精度、高分辨率的优势,因此,在保定凹陷构造单元及其外围开展了深反射地震测量,采用炸药震源激发、长排列多道接收、高覆盖次数的工作方法,获得了高品质的原始地震记录。通过静校正、叠前噪声压制、反褶积和偏移叠加等高精度成像数据处理方法技术,得到能清晰反映测区深部地质结构和构造特征的反射地震剖面。地震剖面清楚地查明了凹陷内断裂构造特征,以此划分了内部次级构造单元。根据地震剖面上识别的角度不整合面,划分了基底构造层、断陷期构造层和凹陷期构造层,并据此探讨了3个构造层的构造演化过程。Abstract: The Baoding sag is located on the western margin of the Jizhong depression,Bohai Bay basin.It is adjacent to the uplift of the Taihang Mountains in the west,with the piedmont fault of the Taihang Mountains as the boundary.Identifying the deep structures and fine-scale geological structure of the sag is greatly significant for the hydrocarbon exploration and the survey and evaluation of deep thermal reservoirs in the sag.Meanwhile,it also facilitates the research on the characteristics of the piedmont fault of the Taihang Mountains.Since the exploration using the seismic reflection method feature high precision and high resolution in the detection of deep geological structure,this study conducted the seismic reflection-based exploration in the tectonic units of the Baoding sag and their periphery.First,high-quality original seismic records were obtained by means of explosive source excitation,long-array multi-channel reception,and high coverage times.Then,seismic reflection sections that can clearly reflect the deep geological structure and structural characteristics of the survey area were obtained using high-precision imaging data processing techniques,such as static correction,pre-stack noise attenuation,deconvolution,and offset stack.The obtained seismic sections allowed for determining the characteristics of faults in the sag and internal secondary tectonic units.Based on the angular unconformities identified in the seismic sections,the basement structural layer and the structural layers formed during the faulting stage and the depression stage of the Baoding sag were also determined,and,accordingly,the tectonic evolutionary process of the three structural layers were discussed.
-
-
[1] 单帅强, 何登发, 张煜颖. 渤海湾盆地西部保定凹陷构造—地层层序与盆地演化[J]. 地质科学, 2016, 51(2):402-414.
[2] Shan S Q, He D F, Zhang Y Y. Tectono-stratigraphic sequence and basin evolution of Baoding sag in the western Bohai Bay Basin[J]. Chinese Journal of Geology, 2016, 51(2): 402-414.
[3] 常健, 邱楠生, 赵贤正, 等. 渤海湾盆地冀中坳陷现今地热特征[J]. 地球物理学报, 2016, 59(3): 1003-1016.
[4] Chang J, Qiu N S, Zhao X Z, et al. Present-day geothermal regine of the Jizhong depressinn in Bohai Baybasin,East China[J]. Chinese J. Geophys., 2016, 59(3): 1003-1016.
[5] 金凤鸣, 崔周旗, 王权, 等. 冀中坳陷地层岩性油气藏分布特征与主控因素[J]. 岩性油气藏, 2017, 29(2):19-27.
[6] Jin F M, Cui Z Q, Wang Q, et al. Distribution characteristics and main controlling factors of stratigraphiclithologic reservoirs in Jizhong Depression[J]. Lithologic Reservoirs, 2017, 29(2):19-27.
[7] 王雨洁. 冀中坳陷前第三系碳酸盐岩储层类型及成岩作用[J]. 油气地球物理, 2014, 12(2): 57-61.
[8] Wang Y J. Carbonate rock reservoir types and diagenesis of the pre-tertiary in Jizhong Depression[J]. Petroleum Geophysics, 2014, 12(2):57-61.
[9] 何登发, 崔永谦, 张煜颖, 等. 渤海湾盆地冀中坳陷古潜山的构造成因类型[J]. 岩石学报, 2017, 33(4): 1338-1356.
[10] Heng D F, Cui Y Q, Zhang Y Y, et al. Structural genetic types of paleo-buried hill in Jizhong depression,Bohai Bay Basin[J]. Acta Petrologica Sinica, 2017, 33(4): 1338-1356.
[11] 韩春元, 师玉雷, 刘静, 等. 冀中坳陷保定凹陷油气勘探前景与突破口选择[J]. 中国石油勘探, 2017, 22(4): 61-72.
[12] Han C Y, Shi Y L, Liu J, et al. Prospect and breakthrough point of oil and gas exploration in Baoding sag,Jizhong depression[J]. China Petroleum Exploration, 2017, 22(4): 61-72.
[13] 葛肖虹, 刘俊来, 任收麦, 等. 中国东部中—新生代大陆构造的形成与演化[J]. 中国地质, 2014, 41(1): 19-38.
[14] Ge X H, Liu J L, Ren S M, et al. The formation and evolution of the Mesozoic-Cenozoic continental tectonics in eastern China[J]. Geology in China, 2014, 41(1):19-38.
[15] 单帅强. 太行山山前断层的构造几何学、运动学及其对渤海湾盆地发育的控制作用[D]. 北京: 中国地质大学(北京), 2018.
[16] Shan S Q. Structural geometry and kinematics of the Taihang Mountain Piedmont fault and its controlling on the development of the Bohai Bay Basin[D]. Beijing: China University of Geosciences (Beijing), 2018.
[17] 梁宏斌, 钱铮, 辛首良, 等. 冀中坳陷地热资源评价与开发利用[J]. 新能源, 2010, 13(5): 63-68.
[18] Liang H B, Qian Z, Xin S L, et al. Assessment and development of geothermal resources in Jizhong depression[J]. New Energy, 2014, 12(2): 57-61.
[19] 邱毅, 魏振乾, 刘章造, 等. 华北油田高精度三维地震采集技术[J]. 勘探技术, 2008(2): 21-29.
[20] Qiu Y, Wei Z Q, Liu Z Z, et al. High-precision 3D seismic data acquisition techniques in Huabei Oilfield[J]. Exploration Techniques, 2008(2): 21-29.
[21] 李伟. 渤海湾盆地区中生代盆地演化与前第三系油气勘探[D]. 东营: 中国石油大学(华东), 2007.
[22] Li W. Mesozoic Basin evolution and the exploration of the Pre-Tertiary petroleum in the area of Bohai Bay Basin[D]. Dongying: China University of Petroleum (Huadong), 2007.
[23] 孙冬胜, 刘池阳, 杨明慧, 等. 渤海湾盆地冀中坳陷中区中新生代符合伸展构造[J]. 地质评论, 2004, 50(5): 484-491.
[24] Sun D S, Liu C Y, Yang M H, et al. Study on complex extensional structures in the middle Jizhong Depression in the Bohai Bay Basin[J]. Geological Review, 2004, 50(5): 484-491.
[25] 张文朝, 杨德相, 陈彦均, 等. 冀中坳陷古近系沉积构造特征与油气分布规律[J]. 地质学报, 2018, 82(8): 1103-1112.
[26] Zhang W Z, Yang D X, Chen Y J, et al. Sedimentary structural characteristics and hydrocarbon distributed rules of Jizhong Depression[J]. Acta Geologica Sinica, 2018, 82(8): 1103-1112.
[27] Gao C H, Zhang X Z, Cha M, et al. Characteristics of buried hill reservoir in Jizhong depression[J]. Northwest Oil & Gas Exploration, 2011, 23(6): 6-12.
[28] 王贵玲, 高俊, 张保建, 等. 雄安新区高阳低凸起区雾迷山组热储特征与高产能地热井参数研究[J]. 地质学报, 2020, 94(7): 1970-1980.
[29] Wang G L, Gao J, Zhang B J, et al. Study on the thermal storage characteristics of the Wumishan Formation and huge capacity geothermal well parameters in the Gaoyang low uplift area of Xiong’an New Area[J]. Acta Geologica Sinica, 2020, 94(7): 1970-1980.
[30] 毛翔, 汪新伟, 郭世炎, 等. 高阳地热田及邻区地热资源形成机制[J]. 中国岩溶, 2021, 40(2): 273-280.
[31] Mao X, Wang X W, Guo S Y, et al. Genetic mechanism of geothermal resources in the Gaoyang geothermal field and adjacent areas[J]. Carsologica Sinica, 2021, 40(2): 273-280.
[32] 许德树, 冯创业. 综合物探技术在石家庄凹陷地热勘查中的应用[J]. 物探与化探, 2007, 31(5): 440-443.
[33] Xu D S, Feng C Y. The applicition of integrated geophysical technique to geothermal prospecting in ShiJiaZhuang depression[J]. Geophysical and Geochemical Exploration, 2007, 31(5):440-443.
[34] 何登发, 单帅强, 张煜颖, 等. 雄安新区的三维地质结构:来自反射地震资料的约束[J]. 中国科学:地质科学, 2018, 48(9):1207-1222.
[35] He D F, ShanS Q, Zhang Y Y, et al. 3-D geologic architecture of Xiong'an New Area:Constraints from seismic reflection data[J]. Science China:Earth Sciences, 2018, 48(9): 1207-1222.
[36] Gao X Z, Wu W T, Lu X J. Multiplicity of hydrocarbon reservoir and accumulation controlling factors within buried hills in Jizhong depression[J]. Journal of China University of Petroleum, 2011, 35(3):31-35.
-
计量
- 文章访问数: 579
- PDF下载数: 85
- 施引文献: 0
下载: