鄂尔多斯盆地中生界低渗透岩性油藏形成规律综述

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鄂尔多斯盆地中生界低渗透岩性油藏形成规律综述

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中图分类号: TE122.3+1

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文章访问数: 1969
HTML全文浏览量: 4
PDF下载量: 532
被引次数: 0

Summary of Formation Rule for Low Permeability Lithologic Reservoir of Mesozoic in Ordos Basin

摘要

摘要: 鄂尔多斯盆地中生代为典型的大型内陆坳陷湖盆，含油层系主要为三叠系延长组和侏罗系延安组。长7优质烃源岩为中生界油藏的主要源岩，异常高压为中生界低渗透储层油气大规模运移的主要动力，孔隙性砂体和裂缝系统是中生界石油运移的主要通道，多种输导体系和异常压力的有效组合控制了油藏的展布特征。利用储层成岩流体包裹体、自生伊利石测年和沥青期次等多种方法对成藏期次进行了分析，认为中生界油藏的形成为连续充注一期成藏的特点，成藏期可分为早、中、晚三个阶段，分别对应于早白垩世早期、中期和晚期，主成藏期为早白垩世中期的中期成藏阶段。总结出鄂尔多斯盆地延长组低渗透岩性油藏的形成规律，在长7优质烃源岩欠压实作用和生烃增压共同产生异常高压生的作用下，原油通过互相叠置的相对高渗砂体向上、向下运移，在长4+5、长6、长8形成大规模岩性油藏，并通过微裂缝和前侏罗纪古河输导体系，在长2及侏罗系形成了构造—岩性油藏。
- 鄂尔多斯盆地 /
- 低渗透岩性油藏 /
- 成藏期次 /
- 成藏动力 /
- 输导体系 /
- 中生界
Abstract: :Ordos Basin is the typical inland depression lake basin of Mesozoic. Yanchang Formation of Upper Triassic and Yan'an Formation of Jurassic are the main oilbearing strata. Chang 7 high quality source rocks are the principal source rocks of Mesozoic oil reservoir, abnormal high pressure is the principal migration force of Mesozoic low permeability reservoir, porosity sandstone and fracture system are the main migration pathway of mesozoic hydrocarbon, the effective combination of several carrier
system and abnormal high pressure controlled the reservoir distribution. By using the methods of the diagenetic fluid inclusion of reservoirs, authigenic illite dating and bitumen with different periods, analysis of the petroleum accumulation period, considered that the formation of Mesozoic oil reservoir is oil migration and accumulation. The accumulation poriod can be divided into early stage, middle stage and late stage, respectively corresponded to early period, middle period and late period of early cretaceous, The main accumulation stage is the middle stage of accumulation poriod in middle period of early Cretaceous. The formation rule for low permeability lithologic reservoir of Mesozoic in Ordos Basin has been summrized. Under the effect of abnormal high pressure which was generated by low compaction and hydrocarbongenerating pressurization of Chang 7 source rocks, hydrocarbon migrated up and down by overlying high permeability sandstone, formed largescale lithologic reservoir in Chang 4+5, Chang 6 and Chang 8, and by the passage system of micro fracture and anterior Jurassic paleoriver sand, formed structural lithologic reservoir in Chang 2 and Jurassic reservoir.
- Ordos Basin /
- low permeability lithologic reservoir /
- hydrocarbon accumulation period /
- petroleum accumulation force /
- carrier system /
- Mesozoic

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[1]	徐宁宁, 张守鹏, 王永诗, 邱隆伟. 鄂尔多斯盆地北部二叠系下石盒子组致密砂岩成岩作用及孔隙成因 . 沉积学报, 2022, 40(2): 422-434. doi: 10.14027/j.issn.1000-0550.2021.027
[2]	马立元, 邱桂强, 刘春燕, 胡才志, 罗源. 鄂尔多斯盆地红河油田延长组储层致密化与石油成藏的关系 . 沉积学报, 2020, 38(3): 620-634. doi: 10.14027/j.issn.1000-0550.2019.086
[3]	潘星, 王海红, 王震亮, 刘一仓, 高徐辉, 王联国, 肖胜东. 三角洲平原砂岩差异成岩及其对储层分类的控制作用——以鄂尔多斯盆地西南部殷家城地区延安组为例 . 沉积学报, 2019, 37(5): 1031-1043. doi: 10.14027/j.issn.1000-0550.2018.182
[4]	胡鹏, 于兴河, 陈宏亮, 赵晨帆, 周进松, 韩小琴, 李亚龙. 障壁坝砂体储层特征与成岩孔隙定量演化模式——以鄂尔多斯盆地延长探区本溪组为例 . 沉积学报, 2019, 37(2): 390-402. doi: 10.14027/j.issn.1000-0550.2018.121
[5]	刘福田, 李荣西, 刘新社, 杨鸣一, 赵帮胜, 吴小力, 覃小丽. 鄂尔多斯盆地苏里格西部气田“源控”主导的天然气成藏研究 . 沉积学报, 2019, 37(6): 1129-1139. doi: 10.14027/j.issn.1000-0550.2019.052
[6]	邓守伟. 松辽盆地德惠断陷火石岭组天然气成藏机理 . 沉积学报, 2019, 37(2): 432-442. doi: 10.14027/j.issn.1000-0550.2018.131
[7]	沈卫兵, 庞雄奇, 陈践发, 王阳洋, 张科, 高兆富, 贾颖超, 陈泽亚. 塔里木盆地塔中隆起奥陶系碳酸盐岩油气运聚主控因素及成藏模式 . 沉积学报, 2018, 36(5): 1008-1022. doi: 10.14027/j.issn.1000-0550.2018.101
[8]	刘鹏. 渤南洼陷古近系早期成藏作用再认识及其地质意义 . 沉积学报, 2017, 35(1): 173-181. doi: 10.14027/j.cnki.cjxb.2017.01.017
[9]	郑庆华, 柳益群. 鄂尔多斯盆地镇北地区延长组长4+5致密油层成岩作用及成岩相 . 沉积学报, 2015, 33(5): 1000-1012. doi: 10.14027/j.cnki.cjxb.2015.05.016
[10]	. 利用天然气包裹体方法划分天然气成藏期次——以鄂尔多斯盆地东南部上古生界储层为例 . 沉积学报, 2013, 31(04): 693-698.
[11]	. 鄂尔多斯盆地延长组长10期沉积环境与沉积体系 . 沉积学报, 2011, 29(6): 1105-1114.
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[14]	郭彦如刘化清李相博完颜容郑希民. 大型坳陷湖盆层序地层格架的研究方法体系 ———以鄂尔多斯盆地中生界延长组为例 . 沉积学报, 2008, 26(3): 384-391.
[15]	罗忠. 层序界面对砂岩成岩作用及储层质量的影响——以鄂尔多斯盆地延河露头上三叠统延长组为例 . 沉积学报, 2007, 25(6): 903-914.
[16]	. 鄂尔多斯盆地镇北地区长3砂岩的成岩作用及其对储层的影响 . 沉积学报, 2006, 24(05): 690-697.
[17]	王琪, 禚喜准, 陈国俊, 史基安, 王多云. 鄂尔多斯盆地盐池—姬源地区三叠系长4+5砂岩成岩演化特征与优质储层分布 . 沉积学报, 2005, 23(3): 397-405.
[18]	史基安, 王金鹏, 毛明陆, 王琪, 郭正权, 郭雪莲, 卢龙飞. 鄂尔多斯盆地西峰油田三叠系延长组长6—8段储层砂岩成岩作用研究 . 沉积学报, 2003, 21(3): 373-380.
[19]	陈庆春, 林玉祥, 唐洪三. 临南地区石油运移方向与成藏期次研究 . 沉积学报, 2001, 19(4): 611-616.
[20]	赵孟为, Hans Ahrendt, Klaus Wem mer. K－Ar测年法在确定沉积岩成岩时代中的应用——以鄂尔多斯盆地为例 . 沉积学报, 1996, 14(3): 11-21.

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文章访问数: 1969
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被引次数: 0

鄂尔多斯盆地中生界低渗透岩性油藏形成规律综述

刊出日期: 2012-10-10

中图分类号: TE122.3+1

关键词:

摘要: 鄂尔多斯盆地中生代为典型的大型内陆坳陷湖盆，含油层系主要为三叠系延长组和侏罗系延安组。长7优质烃源岩为中生界油藏的主要源岩，异常高压为中生界低渗透储层油气大规模运移的主要动力，孔隙性砂体和裂缝系统是中生界石油运移的主要通道，多种输导体系和异常压力的有效组合控制了油藏的展布特征。利用储层成岩流体包裹体、自生伊利石测年和沥青期次等多种方法对成藏期次进行了分析，认为中生界油藏的形成为连续充注一期成藏的特点，成藏期可分为早、中、晚三个阶段，分别对应于早白垩世早期、中期和晚期，主成藏期为早白垩世中期的中期成藏阶段。总结出鄂尔多斯盆地延长组低渗透岩性油藏的形成规律，在长7优质烃源岩欠压实作用和生烃增压共同产生异常高压生的作用下，原油通过互相叠置的相对高渗砂体向上、向下运移，在长4+5、长6、长8形成大规模岩性油藏，并通过微裂缝和前侏罗纪古河输导体系，在长2及侏罗系形成了构造—岩性油藏。

Summary of Formation Rule for Low Permeability Lithologic Reservoir of Mesozoic in Ordos Basin

Publish Date: 2012-10-10

Keywords:

Abstract: :Ordos Basin is the typical inland depression lake basin of Mesozoic. Yanchang Formation of Upper Triassic and Yan'an Formation of Jurassic are the main oilbearing strata. Chang 7 high quality source rocks are the principal source rocks of Mesozoic oil reservoir, abnormal high pressure is the principal migration force of Mesozoic low permeability reservoir, porosity sandstone and fracture system are the main migration pathway of mesozoic hydrocarbon, the effective combination of several carrier
system and abnormal high pressure controlled the reservoir distribution. By using the methods of the diagenetic fluid inclusion of reservoirs, authigenic illite dating and bitumen with different periods, analysis of the petroleum accumulation period, considered that the formation of Mesozoic oil reservoir is oil migration and accumulation. The accumulation poriod can be divided into early stage, middle stage and late stage, respectively corresponded to early period, middle period and late period of early cretaceous, The main accumulation stage is the middle stage of accumulation poriod in middle period of early Cretaceous. The formation rule for low permeability lithologic reservoir of Mesozoic in Ordos Basin has been summrized. Under the effect of abnormal high pressure which was generated by low compaction and hydrocarbongenerating pressurization of Chang 7 source rocks, hydrocarbon migrated up and down by overlying high permeability sandstone, formed largescale lithologic reservoir in Chang 4+5, Chang 6 and Chang 8, and by the passage system of micro fracture and anterior Jurassic paleoriver sand, formed structural lithologic reservoir in Chang 2 and Jurassic reservoir.

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鄂尔多斯盆地中生界低渗透岩性油藏形成规律综述

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Summary of Formation Rule for Low Permeability Lithologic Reservoir of Mesozoic in Ordos Basin

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鄂尔多斯盆地中生界低渗透岩性油藏形成规律综述

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Summary of Formation Rule for Low Permeability Lithologic Reservoir of Mesozoic in Ordos Basin

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鄂尔多斯盆地中生界低渗透岩性油藏形成规律综述

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Summary of Formation Rule for Low Permeability Lithologic Reservoir of Mesozoic in Ordos Basin

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鄂尔多斯盆地中生界低渗透岩性油藏形成规律综述

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Summary of Formation Rule for Low Permeability Lithologic Reservoir of Mesozoic in Ordos Basin

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