苏北盆地海相地层残存状况及成藏类型分析

潘文蕾; 彭金宁; 翟常博; 李海华; 邱建华; 曹倩; 李风勋; 陆永德

doi:10.11781/sysydz202202231

苏北盆地海相地层残存状况及成藏类型分析

doi: 10.11781/sysydz202202231

1.
中国石化石油勘探开发研究院无锡石油地质研究所, 江苏无锡 214126
2.
中国石化石油勘探开发研究院, 北京 100083

基金项目:

中国石化油田部项目“苏北—南黄海盆地中古生界成藏条件与有利区评价” YTBXD-01-SKY21-2020

详细信息

作者简介:
潘文蕾(1969—) , 男,高级工程师,从事石油地质与勘探研究。E-mail :panwl.syky@ sinopec.com。

中图分类号: TE122.32
计量
- 文章访问数: 543
- HTML全文浏览量: 129
- PDF下载量: 70
- 被引次数: 0
出版历程
- 收稿日期: 2021-03-23
- 修回日期: 2022-02-15
- 刊出日期: 2022-03-28

Residual strata and hydrocarbon accumulation model of marine sediments in Subei Basin

1.
Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China
2.
SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China

摘要

摘要: 基于前人研究认识和勘探成果，结合区域地球物理剖面解析和钻井资料分析，探讨了苏北地区海相地层在经历了印支—燕山期挤压构造与喜马拉雅期伸展构造迭加改造下的变形及分布面貌。在此基础上，综合成藏组合分析，总结了研究区可能的油气成藏类型及其主控因素。研究认为：(1)苏北地区以淮阴—东台断裂为界，西侧残留地层以下古生界为主，纵向上基本表现为地层倒转，由北往南逐渐由老变新；东侧残留地层以上古生界为主，纵向上正常分布，同样由北往南地层逐渐变新。(2)苏北地区存在四类与海相地层有关的油气成藏类型，即早期原生残留型、晚期新生古储型、晚期古生新储型和晚期古生古储型。早期原生残留型必须同时具备早期成藏有利区及燕山期改造破坏程度弱两大要素；晚期新生古储型必须具备陆相烃灶与海相储层对接的良好配置要素；晚期古生新储型残留海相地层必须具备晚期生烃烃灶及垂向运移到陆相储层的通道两要素；晚期古生古储型残留海相地层必须具备晚期生烃烃灶及纵向区域盖层封盖良好两要素。晚期古生新储型油气藏是近期海相勘探突破的有利类型，晚期古生古储型油气藏应是海相勘探拓展的有利类型。
- 油气成藏模式 /
- 油气成藏条件 /
- 构造运动 /
- 海相地层 /
- 苏北盆地
Abstract: Based on the understandings of previous studies and exploration results, with the analyses of regional geophysical profiles and drilling data, it was discussed in this paper the deformation and distribution of marine sediments in the northern Jiangsu area under the superimposed transformation of Indosinian-Yanshanian compressional structures and Himalayan extensional structures. On this basis, the possible types of hydrocarbon accumulation and their key controlling factors of the study area were summarized by comprehensive analysis of accumulation assemblage. Results indicate that: (1) Bounded by Huaiyin-Dongtai fault, the Lower Paleozoic strata dominate the remaining strata of the west side, which basically show a stratum inversion in vertical direction and gradually change from old to new from north to south. The remaining strata of the east side are dominated by the Upper Paleozoic, which are normally distributed vertically and gradually change from old to new from north to south. (2) There are four types of hydrocarbon accumulation related to marine strata in the northern Jiangsu area, including early-stage primary-generation and residual type, late-stage new-generation and ancient-storage type, late-stage ancient-generation and new-storage type, and ancient-generation and ancient-storage type. For the early-stage primary-generation and residual type, two factors must be occurred: the favorable area for early accumulation and the weak degree of reconstruction and damage in the Yanshanian period. For the late-stage new-generation and ancient-storage type, the connection between continental hydrocarbon kitchen and marine reservoir is needed. For the late-stage ancient-generation and new-storage type, there must be late hydrocarbon generation kitchen and vertical migration channel to continental reservoir. For the late-stage ancient-generation and ancient-storage type, there must be late hydrocarbon generation kitchen and vertical regional cap rocks. The late-stage ancient-generation and new-storage type is a favorable target for recent breakthroughs in marine exploration, and the late-stage ancient-generation and ancient-storage type is favorable for further exploration.
- hydrocarbon accumulation model /
- hydrocarbon accumulation condition /
- tectonic movement /
- marine strata /
- Subei Basin

HTML全文

图 1 苏北盆地地震综合解释剖面及构造分带

测线位置见图 2。

Figure 1. Seismic interpretation profiles and tectonic division of Subei Basin

下载: 全尺寸图片幻灯片

图 2 苏北盆地海相单元构造分区及上白垩统浦口组沉积厚度

Figure 2. Marine tectonic units in Subei Basin and overlap sedimentary thickness of Upper Cretaceous Pukou Formation

下载: 全尺寸图片幻灯片

图 3 苏北盆地淮阴—东台断裂以西不同构造单元钻井地层南北向连井剖面对比

剖面位置见图 4。

Figure 3. Contrast of N-S stratigraphic profile of drilling wells in different structural units to the west of Huaiyin-Dongtai fault, Subei Basin

下载: 全尺寸图片幻灯片

图 4 苏北盆地海相残留地层分布

Figure 4. Distribution of marine residual stratum in Subei Basin

下载: 全尺寸图片幻灯片

图 5 苏北盆地淮阴—东台断裂以东不同构造单元钻井地层南北向连井剖面对比

剖面位置见图 4。

Figure 5. Contrast of N-S stratigraphic profile of drilling wells in different structural units to the east of Huaiyin-Dongtai fault, Subei Basin

下载: 全尺寸图片幻灯片

图 6 苏北盆地海相层系成藏条件及成藏模式

Figure 6. Accumulation conditions and models of marine strata in Subei Basin

下载: 全尺寸图片幻灯片

图 7 苏北盆地海相层系不同成藏类型及油气显示分布

Figure 7. Different types of accumulation and distribution of oil and gas shows in marine strata in Subei Basin

下载: 全尺寸图片幻灯片

表 1 苏北盆地海相地层成藏类型分类

Table 1. Marine accumulation types in Subei Basin

成藏期次	成藏类型	成藏主控因素	印支期构造变形位置	喜马拉雅期构造变形位置	实例
早期	原生残留型	早期成藏有利区带、构造改造程度弱	对冲弱褶皱带	弱伸展变形带	未发现
晚期	古生古储型	晚期海相烃灶、保存条件	对冲弱褶皱带	弱伸展变形带	黄桥
	古生新储型	晚期海相烃灶、输导条件	东侧冲断带	强伸展变形带	盐城朱家墩
	新生古储型	晚期陆相烃灶、源储对接	西侧冲断带	强伸展变形带	溱潼、真武

下载: 导出CSV

参考文献(25)

[1]	徐旭辉, 周小进, 彭金宁. 从扬子地区海相盆地演化改造与成藏浅析南黄海勘探方向[J]. 石油实验地质, 2014, 36(5): 523-531. doi: 10.11781/sysydz201405523 XU Xuhui, ZHOU Xiaojin, PENG Jinning. Exploration targets in southern Yellow Sea through analysis of tectono-depositional evolution and hydrocarbon accumulation of marine basin in Yangtze area[J]. Petroleum Geology & Experiment, 2014, 36(5): 523-531. doi: 10.11781/sysydz201405523
[2]	徐曦, 胡瀚文, 张加洪, 等. 中国东部新生代沉积盆地热状态与油气成藏潜力: 以苏北—南黄海盆地为例[J]. 石油实验地质, 2020, 42(6): 928-937. doi: 10.11781/sysydz202006928 XU Xi, HU Hanwen, ZHANG Jiahong, et al. Deep thermal state and hydrocarbon accumulation potential of Cenozoic sedimentary basins in East China: a case study of Subei-South Yellow Sea basin[J]. Petroleum Geology & Experiment, 2020, 42(6): 928-937. doi: 10.11781/sysydz202006928
[3]	郑华峰. 苏北盆地中、上古生界分布预测[J]. 石油物探, 2011, 50(1): 51-58. https://www.cnki.com.cn/Article/CJFDTOTAL-SYWT201101010.htm ZHENG Huafeng. Prediction on the distribution of the Mesozoic and Upper Palaeozoic in Subei Basin[J]. Geophysical Prospecting for Petroleum, 2011, 50(1): 51-58. https://www.cnki.com.cn/Article/CJFDTOTAL-SYWT201101010.htm
[4]	丁道桂, 潘文蕾, 彭金宁, 等. 扬子板块中、古生代盆地的改造变形[J]. 石油与天然气地质, 2008, 29(5): 597-606. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT200805012.htm DING Daogui, PAN Wenlei, PENG Jinning, et al. Transformation and deformation of the Meso-Paleozoic basins in the Yangtze Plate[J]. Oil & Gas Geology, 2008, 29(5): 597-606. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT200805012.htm
[5]	丁道桂, 李凤丽. 下扬子区中—新生代变格构造运动[J]. 石油实验地质, 2020, 42(5): 687-697. doi: 10.11781/sysydz202005687 DING Daogui, LI Fengli. Mesozoic and Cenozoic diktyogenese in the Lower Yangtze region[J]. Petroleum Geology & Experiment, 2020, 42(5): 687-697. doi: 10.11781/sysydz202005687
[6]	胡红雷, 朱光. 苏北地区前陆变形特征与形成机制[J]. 大地构造与成矿学, 2013, 37(3): 366-376. https://www.cnki.com.cn/Article/CJFDTOTAL-DGYK201303002.htm HU Honglei, ZHU Guang. Characteristics and formation mechanism of the foreland deformation in the Subei region[J]. Geotectonica et Metallogenia, 2013, 37(3): 366-376. https://www.cnki.com.cn/Article/CJFDTOTAL-DGYK201303002.htm
[7]	赵挺. 苏北海相中、古生界构造特征及主要成藏组合分布预测[D]. 青岛: 中国石油大学, 2017. ZHAO Ting. Structural characteristics of marine Mesozoic and Paleozoic and prediction of distribution of their main assemblage in the northern Jiangsu area[D]. Qingdao: China University of Petroleum (East China), 2017.
[8]	朱光, 刘国生, 牛漫兰, 等. 苏北地区中、古生界构造特征研究[R]. 扬州: 江苏油田科研报告, 2012. ZHU Guang, LIU Guosheng, NIU Manlan, et al. The structure characteristics of the palaeozoic group in the Subei region[R]. Yangzhou: Research Report of Jiangsu Oilfield, 2012.
[9]	刘玉瑞. 论苏北后生—同生断陷盆地性质[J]. 复杂油气藏, 2017, 10(1): 1-8. https://www.cnki.com.cn/Article/CJFDTOTAL-FZYQ201701001.htm LIU Yurui. Study on characteristics of hysterogenic reconstructive and syngenetic rift basins in Subei Basin[J]. Complex Hydrocarbon Reservoirs, 2017, 10(1): 1-8. https://www.cnki.com.cn/Article/CJFDTOTAL-FZYQ201701001.htm
[10]	徐曦, 孙连浦, 肖梦楚, 等. 下扬子区新生代断陷盆地的断裂构造特征与活动规律[J]. 高校地质学报, 2018, 24(5): 723-733. https://www.cnki.com.cn/Article/CJFDTOTAL-GXDX201805010.htm XU Xi, SUN Lianpu, XIAO Mengchu, et al. Structural characte-ristics and activity rules of faults in the Cenozoic faulted-basins in the Lower Yangtze region[J]. Geological Journal of China Universities, 2018, 24(5): 723-733. https://www.cnki.com.cn/Article/CJFDTOTAL-GXDX201805010.htm
[11]	阎泗民, 周建松, 王启飞, 等. 苏北地区井下浦口组地层研究[J]. 地层学杂志, 2001, 25(2): 144-149. https://www.cnki.com.cn/Article/CJFDTOTAL-DCXZ200102016.htm YAN Simin, ZHOU Jiansong, WANG Qifei, et al. The study of the Pukou Formation under the drills in northern Jiangsu[J]. Journal of Stratigraphy, 2001, 25(2): 144-149. https://www.cnki.com.cn/Article/CJFDTOTAL-DCXZ200102016.htm
[12]	金之钧, 刘光祥, 方成名, 等. 下扬子区海相油气勘探选区评价研究[J]. 石油实验地质, 2013, 35(5): 473-486. doi: 10.11781/sysydz201305473 JIN Zhijun, LIU Guangxiang, FANG Chengming, et al. Evaluation of selected areas for petroleum exploration in marine strata of Lower Yangtze region[J]. Petroleum Geology & Experiment, 2013, 35(5): 473-486. doi: 10.11781/sysydz201305473
[13]	郭彤楼. 下扬子地区中古生界叠加改造特征与多源多期成藏[J]. 石油实验地质, 2004, 26(4): 319-323. doi: 10.11781/sysydz200404319 GUO Tonglou. Superimposition and modification of the Mesozoic and Paleozoic basins and multi-stages of hydrocarbon accumulation with multiple source rocks in Lower Yangtze area[J]. Petroleum Geology & Experiment, 2004, 26(4): 319-323. doi: 10.11781/sysydz200404319
[14]	冯武军, 段宏亮. 下扬子区海相中—古生界烃源岩成烃序列及油气勘探前景[C]//第五届油气成藏机理与油气资源评价国际学术研讨会论文集. 北京: 中国石油学会, 2009: 319-323. FENG Wujun, DUAN Hongliang. Palaeozoic group of Marine hydrocarbon source rock hydrocarbon generation sequence and exploration prospect in lower Yangtze area[C]//The Fifth International Academic Conference on Hydrocarbon Accumulation Mechanism and Oil and Gas Resources Evaluation. Beijing: China Petroleum Society, 2009: 319-323.
[15]	周冰, 金之钧, 刘全有, 等. 苏北盆地黄桥地区富CO₂流体对油气储—盖系统的改造作用[J]. 石油与天然气地质, 2020, 41(6): 1151-1161. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202006005.htm ZHOU Bing, JIN Zhijun, LIU Quanyou, et al. Alteration of reservoir-caprock systems by using CO₂-rich fluid in the Huangqiao area, North Jiangsu Basin[J]. Oil & Gas Geology, 2020, 41(6): 1151-1161. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202006005.htm
[16]	张忠民, 龙胜祥, 徐立民. 苏北盆地古生界天然气勘探前景[J]. 天然气地球科学, 2008, 19(3): 347-350. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX200803009.htm ZHANG Zhongmin, LONG Shengxiang, XU Limin. Exploration prospects of Palaeozoic natural gas in Subei Basin[J]. Natural Gas Geoscience, 2008, 19(3): 347-350. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX200803009.htm
[17]	叶舟, 梁兴, 马力, 等. 扬子独立地块海相残留盆地油气勘探方向探讨[J]. 地质科学, 2006, 41(3): 523-548. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKX200603015.htm YE Zhou, LIANG Xing, MA Li, et al. An approach to exploration direction of oil gas in the marine residual basins of independent Lower Yangtze block[J]. Chinese Journal of Geology, 2006, 41(3): 523-548. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKX200603015.htm
[18]	叶舟, 马力, 梁兴, 等. 下扬子独立地块与中生代改造型残留盆地[J]. 地质科学, 2006, 41(1): 81-101. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKX200601008.htm YE Zhou, MA Li, LIANG Xing, et al. The independent lower Yangtze block and Mesozoic reformed residual basins[J]. Chinese Journal of Geology, 2006, 41(1): 81-101. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKX200601008.htm
[19]	郭旭升, 梅廉夫, 汤广济, 等. 扬子地块中、新生代构造演化对海相油气成藏的制约[J]. 石油与天然气地质, 2006, 27(3): 295-304. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT200603002.htm GUO Xusheng, MEI Lianfu, TANG Guangji, et al. Constraint of Meso-Cenozoic tectonic evolution of Yangtze massif on formation of marine reservoirs[J]. Oil & Gas Geology, 2006, 27(3): 295-304. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT200603002.htm
[20]	姚红生, 昝灵, 高玉巧, 等. 苏北盆地溱潼凹陷古近系阜宁组二段页岩油富集高产主控因素与勘探重大突破[J]. 石油实验地质, 2021, 43(5): 776-783. doi: 10.11781/sysydz202105776 YAO Hongsheng, ZAN Ling, GAO Yuqiao, et al. Main controlling factors for the enrichment of shale oil and significant discovery in second member of Paleogene Funing Formation, Qintong Sag, Subei Basin[J]. Petroleum Geology & Experiment, 2021, 43(5): 776-783. doi: 10.11781/sysydz202105776
[21]	陈安定. 苏北盆地部分古生界原油来自第三系源岩的证据[J]. 江苏地质, 2005, 29(4): 193-197. https://www.cnki.com.cn/Article/CJFDTOTAL-JSDZ200504000.htm CHEN Anding. Geochemical evidence of Paleozoic oil reservoir from Tertiary source rocks in North Jiangsu Basin[J]. Jiangsu Geology, 2005, 29(4): 193-197. https://www.cnki.com.cn/Article/CJFDTOTAL-JSDZ200504000.htm
[22]	侯建国, 陈安定, 肖秋生, 等. 盐城天然气藏地质特征及其勘探意义[J]. 石油实验地质, 2001, 23(2): 183-185. doi: 10.11781/sysydz200102183 HOU Jianguo, CHEN Anding, XIAO Qiusheng, et al. Geologic features of Yancheng natural gas accumulation and their significance to exploration[J]. Petroleum Geology & Experiment, 2001, 23(2): 183-185. doi: 10.11781/sysydz200102183
[23]	刘东鹰. 江苏下扬子区海相中、古生界石油天然气成藏机制、成藏过程研究[D]. 广州: 中科院研究生院, 2004. LIU Dongying. The forming of Mesozoi-Paleozoie marine oil and gas Lower Yangzi River, Jiangsu Province[D]. Guangzhou: University of Chinese Academy of Sciences, 2004.
[24]	王东燕, 彭金宁, 邱岐, 等. 下扬子句容地区上古生界油气成藏模式及控制因素[J]. 石油实验地质, 2017, 39(5): 640-646. doi: 10.11781/sysydz201705640 WANG Dongyan, PENG Jinning, QIU Qi, et al. Hydrocarbon accumulation model and controlling factors in the Upper Paleozoic in Jurong area, Lower Yangtze region[J]. Petroleum Geology & Experiment, 2017, 39(5): 640-646. doi: 10.11781/sysydz201705640
[25]	张淮, 周荔青, 李建青. 下扬子地区海相下组合油气勘探潜力分析[J]. 石油实验地质, 2006, 28(1): 15-20. doi: 10.11781/sysydz200601015 ZHANG Huai, ZHOU Liqing, LI Jianqing. Hydrocarbon exploration potential analysis of the lower marine formation assemblage in the lower Yangtze region[J]. Petroleum Geology & Experiment, 2006, 28(1): 15-20. doi: 10.11781/sysydz200601015