鄂尔多斯盆地陇东地区洪德区块侏罗系延安组油藏富集规律
Oil enrichment law of the Jurassic Yan’an Formation, Hongde block, Longdong area, Ordos Basin
- 2022年43卷第5期 页码:1167-1179
收稿:2021-09-11,
修回:2022-08-11,
纸质出版:2022-10-01
DOI: 10.11743/ogg20220513
移动端阅览
收稿:2021-09-11,
修回:2022-08-11,
纸质出版:2022-10-01
移动端阅览
因邻区侏罗系有油气发现,鄂尔多斯盆地陇东地区洪德区块成为了新的勘探目标。以洪德侏罗系延安组为例,综合岩心、测井、地震和试井资料,开展了沉积体系、构造和古地貌研究,分析了古地貌、构造和沉积储层对延安组油藏的控制作用。结果表明,延安组与延长组间存在3个局部不整合面,分别介于富县组和延长组、延(延安组)10油层组和延长组及延9油层组和延长组之间。前侏罗纪古地貌可划分为5类单元,分别为古河谷、河间丘、古阶地、斜坡带和低残丘。其中,斜坡带和低残丘利于成藏;古阶地及古河谷的延10油层组也具有一定成藏潜力。此外,多支沟交汇且经河水反复冲刷的坡嘴位置,砂体泥质组分含量低,也利于成藏。油藏可见明显的油顶及油-水界面。断裂带与砂体走向在平面上互相切割;断层上盘利于成藏,而下盘因无有效封闭遮挡,往往不利于成藏;正断裂较逆断裂更容易成藏。优质沉积储层是延安组成藏的必要不充分条件。基于古地貌、构造及沉积储层三级控藏要素组合,提出了适用于洪德地区侏罗系延安组成藏的判别方法。
The Jurassic in the Hongde block, Longdong area, Ordos Basin, has been less explored until some oil discoveries were made in the same system of nearby blocks. The Yan’an Formation in the Hongde block is taken as the subject of study to reveal conditions for possible oil accumulations in the formation based on relevant core, logging, seismic and testing data as well as analyses of sedimentary systems, tectonics and paleo geomorphology-the three most likely controlling factors for oil pooling. The results indicate that from the Yan’an Formation to the Yanchang Formation in the area there are three local unconformities respectively between the Fuxian Formation and the Yanchang Formation, the Yan 10 sub-member (Yan’an Formation) and Yanchang Formation, and the Yan 9 sub-member (Yan’an Formation)and Yanchang Formation. Five types of pre-Jurassic paleomorphologic units are also recognized:the paleovalley, inter-channel hill, ancient terrace, slope belt and low residual hill. Among them, the slope belt and low residual hill are conducive to hydrocarbon accumulation,and the ancient terrace and valley in the Yan 10 sub-member also have certain hydrocarbon accumulation potential. In addition, favorable conditions for oil accumulation also exist in the slope mouth where sandbodies have low shale content as several tributaries converged here and washed shale away. Oil caps and oil-water contacts are easily recognized. From a plan view, fault zones are intersecting sandbodies. The hanging walls of faults form perfect traps for oil, while the footwalls, without effective sealing, are usually barren in terms of oil pool. Normal faults are comparatively better oil pool holders than reverse ones. High-quality sedimentary reservoirs are necessary but insufficient conditions for the Yan’an Formation to contain oil pools. Based on the understanding, a method for identifying reservoirs in the Jurassic Yan’an Formation in the Hongde block is proposed.
赵小萌 , 郭峰 , 彭晓霞 , 等 . 鄂尔多斯盆地安边地区延10砂质辫状河相储层特征及主控因素 [J]. 岩性油气藏 , 2021 , 33 ( 6 ): 124 - 134 .
Zhao Xiaomeng , Guo Feng , Peng Xiaoxia , et al . Reservoir characteristics and main controlling factors of Yan 10 sandy braided fluvial facies in Anbian area, Ordos Basin. Lithologic Reservoirs [J], 2021 , 33 ( 6 ): 124 - 134 .
赵虹 , 党犇 , 党永潮 , 等 . 鄂尔多斯盆地安塞志丹地区侏罗系延安组下部组合沉积演化及其对油气的控制 [J]. 西北大学学报(自然科学版) , 2020 , 50 ( 3 ): 490 - 500 .
Zhao Hong , Dang Ben , Dang Yongchao , et al . Depositional system and its evolution of the Lower Yan’an Formation Jurassic in Ansai District, Ordos Basin [J]. Journal of Northwest University(Natural Science Edition) , 2020 , 50 ( 3 ): 490 - 500 .
时志强 , 韩永林 , 赵俊兴 , 等 . 鄂尔多斯盆地中南部中侏罗世延安期沉积体系及岩相古地理演化 [J]. 地球学报 , 2003 , 24 ( 1 ): 49 - 54 .
Shi Zhiqiang , Han Yonglin , Zhao Junxing , et al . Depositional system and paleogeographic evolution of the middle Jurassic Yan'anian stage in the central and southern Ordos Basin [J]. Acta Geoscientica Sinica , 2003 , 24 ( 1 ): 49 - 54 .
程逸凡 , 董艳蕾 , 朱筱敏 , 等 . 准噶尔盆地春光探区白垩纪古地貌恢复及其控砂机制 [J]. 古地理学报 , 2020 , 22 ( 6 ): 1127 - 1142 .
Cheng Yifan , Dong Yanlei , Zhu Xiaomin , et al . Cretaceous paleogeomorphology restoration and its controlling mechanism on sand‑bodies in Chunguang exploration area, Junggar Basin [J]. Journal of Palaeogeography(Chinese Edition) , 2020 , 22 ( 6 ): 1127 - 1142 .
蒋代琴 , 文志刚 , 汤仁文 , 等 . 鄂尔多斯盆地吴起地区古地貌对侏罗系下部油藏形成和富集控制机制分析 [J]. 地质力学学报 , 2018 , 24 ( 5 ): 627 - 634 .
Jiang Daiqin , Wen Zhigang , Tang Renwen , et al . Analysis on the formation and enrichment control mechanism of the lower Jurassic Reservoirs by Paleo‑geoorphology of Wuqi area in the Ordos Basin [J]. Journal of Geomechanics , 2018 , 24 ( 5 ): 627 - 634 .
王霞 , 刘凤林 , 范柏江 , 等 . 鄂尔多斯盆地吴起曾岔地区前侏罗纪古地貌与油藏成藏规律 [J]. 兰州大学学报(自然科学版) , 2020 , 56 ( 1 ): 8 - 15 .
Wang Xia , Liu Feng‑lin , Fan Bo‑jiang , et al . Palaeogeomorphic features of pre‑Jurassic and accumulation regularity of oil reservoir of Zengcha Area in Wuqi County, Ordos Basin [J]. Journal of Lanzhou University(Natural Sciences) , 2018 , 24 ( 5 ): 627 - 634 .
王科 , 赵俊峰 , 薛锐 , 等 . 鄂尔多斯盆地延安组河流沉积类型及演变-来自典型露头精细解剖的证据 [J]. 沉积学报 , 2021 , 45 ( 2 ): 1 - 14 .
Wang Ke , Zhao Jun‑feng , Xue Rui , et al . Fluvial sedimentary types and their evolution in the Yan’an Formation in the Ordos Basin: Evidence from the detailed anatomy of typical outcrops [J]. Acta Sedimentologica Sinica , 2021 , 45 ( 2 ): 1 - 14 .
张倩 , 李文厚 , 刘文汇 , 等 . 鄂尔多斯盆地侏罗纪沉积体系及古地理演化 [J]. 地质科学学报 , 2021 , 56 ( 4 ): 1106 - 1119 .
Zhang Qian , Li Wenhou , Liu Wenhui , et al . Jurassic sedimentary system and paleogeographic evolution of Ordos Basin [J]. Chinese Journal of Geology(Scientia Geologica Sinica) , 2021 , 56 ( 4 ): 1106 - 1119 .
刘世峰 . 高桥地区黄土塬全数字地震采集技术应用研究 [D]. 西安 : 西安石油大学 , 2011 .
Liu Shifeng . The Application Research of Whole Seismic Acqui‑ sition Technology in the Loess Tableland of Gaoqiao Area [D]. Xi'an : Xi'an Shiyou University , 2011 .
赵俊兴 , 陈洪德 . 鄂尔多斯盆地侏罗纪早中期甘陕古河的演化变迁 [J]. 石油与天然气地质 , 2006 , 27 ( 2 ): 152 - 158 .
Zhao Junxing , Chen Hongde . Evolution of Gan‑Shaan paleo‑ channel during Early and Middle Jurassic in Ordos basin [J]. Oil & Gas Geology , 2006 , 27 ( 2 ): 152 - 158 .
刘玄春 . 鄂尔多斯盆地环县地区侏罗系富县组-延10油层组古地貌分析及沉积相特征研究 [D]. 成都 : 成都理工大学 , 2018 .
Liu Xuanchun . Paleogeomorphic analysis and sedimentary facies characteristics of Jurassic Fuxian‑Yan 10 reservoir group in Huan‑ xian area, Ordos Basin [D]. Chengdu : Chengdu University of Technology , 2018 .
Harmon R S , Wicks C M . Perspectives on karst geomorphology, hydrology, and geochemistry: A tribute to Derek C Ford and William B White [M]. Boulder : Geological Society of America , 2006 , 1 - 5 .
朱静 , 李文厚 , 韩永林 , 等 . 陇东地区前侏罗纪古地貌及油藏成藏规律研究 [J]. 沉积学报 , 2010 , 28 ( 6 ): 1229 - 1237 .
Zhu Jing , Li Wenhou , Han Yonglin , et al . Research on palaeo‑ geomorphic features of Pre‑Jurassic and accumulation regularity of oil reservoir in the area of eastern Gansu,Ordos Basin [J]. Acta Sedimentologica Sinica , 2010 , 28 ( 6 ): 1229 - 1237 .
赵虹 , 党犇 , 郑小杰 , 等 . 安塞油田前侏罗纪古地貌特征及其与油气富集关系 [J]. 西北大学学报(自然科学版) , 2012 , 42 ( 2 ): 270 - 275 .
Zhao Hong , Dang Ben , Zheng Xiaojie , et al . Pre‑Jurassic palaeo‑ geomorphology and the relations with oil and gas accumulation in Ansai Oilfield [J]. Journal of Northwest University(Natural Science Edition) , 2012 , 42 ( 2 ): 270 - 275 .
Martin R . Paleogeomorphology and its application to exploration for oil and gas (with examples from western Canada) [J]. AAPG Bulletin , 1966 , 50 ( 10 ): 2277 - 2311 .
赵俊兴 , 陈洪德 , 杨华 , 等 . 鄂尔多斯中南部中下侏罗统储层成因类型与油气聚集关系 [J]. 成都理工大学学报(自然科学版) , 2005 , 28 ( 3 ): 246 - 251 .
Zhao Junxing , Chen Hongde , Yang Hua , et al . Genetic types and their relationship with oil‑gas accumulation of the Lower and Middle Jurassic reservoirs in Ordos Basin [J]. China. Journal of Chengdu University of Technology(Science & Technology Edition) , 2005 , 28 ( 3 ): 246 - 251 .
李树同 , 张海峰 , 王多云 , 等 . 聚油古地貌成因类型及其有利成藏条件分析——以鄂尔多斯盆地上里塬地区前侏罗纪古地貌为例 [J]. 沉积学报 , 2011 , 29 ( 5 ): 962 - 969 .
Li Shutong , Zhang Haifeng , Wang Duoyun , et al . Genetic type of oil‑gas accumulation paleogeomorphology and favorable con‑ ditions for petroleum accumulation:Taking the paleogeomor‑ phology of Pre‑Jurassic in Shangliyuan area,Ordos Basin as an example [J]. Acta Sedimentologica Sinica , 2011 , 29 ( 5 ): 962 - 969 .
赵俊兴 , 陈洪德 , 时志强 . 古地貌恢复技术方法及其研究意义——以鄂尔多斯盆地侏罗纪沉积前古地貌研究为例 [J]. 成都理工学院学报 , 2001 , 32 ( 3 ): 260 - 266 .
Zhao Junxing , Chen Hongde , Shi Zhiqiang . The way and impli‑ cations of rebuilding palaeogeomorphology, Taking the research of palaeogeomorphology of the Ordos Basin before Jurassic deposition as example [J]. Journal of Chengdu University of Technology , 2001 , 14, 32 ( 3 ): 260 - 266 .
程艳红 . JW地区侏罗系成藏规律及控制因素研究 [D]. 秦皇岛 : 燕山大学 , 2016 , 34 - 37 .
Cheng Yanhong . Study on the forming rulesand controlling factors of the JW Jurassic reservoirs [D]. Qinhuangdao : Yanshan University , 2016 , 34 - 37 .
刘联群 , 刘建平 , 李勇 , 等 . 鄂尔多斯盆地彭阳地区侏罗系延安组油气成藏主控因素分析 [J]. 地球科学与环境学报 , 2010 , 32 ( 3 ): 263 - 267 .
Liu Lianqun , Liu Jianping , Li Yong , et al . Main factors influencing oil reservoir in Jurassic Yan'an Formation in Pengyang Area,Ordos Basin [J]. Journal of Earth Sciences and Environ‑ ment , 2010 , 32 ( 3 ): 263 - 267 .
宋凯 , 吕剑文 , 凌升阶 , 等 . 鄂尔多斯盆地定边—吴旗地区前侏罗纪古地貌与油藏 [J]. 古地理学报 , 2003 , 5 ( 4 ): 497 - 507 .
Song Kai , Lü Jianwen , Ling Shengjie , et al . Palaeogeomorphic features of the Pre‑Jurassic and oil reservoir of Dingbian‑Wuqi area in Ordos Basin [J]. Journal of Palaeogeography(Chinese Edition) , 2003 , 5 ( 4 ): 497 - 507 .
时保宏 , 秦馨雨 , 张才利 , 等 . 鄂尔多斯盆地姬塬地区延长组6段油藏差异成藏因素 [J]. 石油与天然气地质 , 2021 , 42 ( 5 ): 1112 - 1123 .
Shi Baohong , Qin Xinyu , Zhang Caili , et al . Insights on factors causing differential enrichment of Chang 6 Member in Jiyuan area, Ordos Basin [J]. Oil & Gas Geology , 2021 , 42 ( 5 ): 1112 - 1123 .
刘畅 , 张道旻 , 李超 , 等 . 鄂尔多斯盆地临兴区块上古生界致密砂岩气藏成藏条件及主控因素 [J]. 石油与天然气地质 , 2021 , 42 ( 5 ): 1146 - 1158 .
Liu Chang , Zhang Daomin , Li Chao , et al . Upper Paleozoic tight gas sandstone reservoirs and main controls, Linxing block, Ordos Basin [J]. Oil & Gas Geology , 2021 , 42 ( 5 ): 1146 - 1158 .
刘池洋 , 王建强 , 张东东 , 等 . 鄂尔多斯盆地油气资源丰富的成因与赋存-成藏特点 [J]. 石油与天然气地质 , 2021 , 42 ( 5 ): 1011 - 1029 .
Liu Chiyang , Wang Jianqiang , Zhang Dongdong , et al . Genesis of rich hydrocarbon resources and their occurrence and accumulation characteristics in the Ordos Basin [J]. Oil & Gas Geology , 2021 , 42 ( 5 ): 1011 - 1029 .
任战利 , 祁凯 , 李进步 , 等 . 鄂尔多斯盆地热动力演化史及其对油气成藏与富集的控制作用 [J]. 石油与天然气地质 , 2021 , 42 ( 5 ): 1030 - 1042 .
Ren Zhanli , Qi Kai , Li Jinbu , et al . Thermodynamic evolution and hydrocarbon accumulation in the Ordos Basin [J]. Oil & Gas Geology , 2021 , 42 ( 5 ): 1030 - 1042 .
相关作者
相关机构
京公网安备11010802024621
