鄂尔多斯盆地洪德地区中生界地层沉积构造演化及勘探前景

doi:10.3969/j.issn.1006-6535.2026.04.002

特种油气藏 ›› 2026, Vol. 33 ›› Issue (4): 9-15.DOI: 10.3969/j.issn.1006-6535.2026.04.002

鄂尔多斯盆地洪德地区中生界地层沉积构造演化及勘探前景

叶青^1,2, 张忠义³, 张涛⁴, 刘宝学^1,2, 张晓磊⁵, 梁治国^1,2, 侯云超⁵, 程俊生^1,2

1.中国石油录井技术研发中心,辽宁盘锦 124010;
2.中国石油长城钻探工程有限公司,辽宁盘锦 124010;
3.怀柔实验室新疆研究院,新疆乌鲁木齐 830000;
4.中国石油长庆油田分公司第五采油厂,陕西西安 710200;
5.中国石油长庆油田分公司勘探开发研究院,陕西西安 710018

收稿日期:2025-04-14 修回日期:2026-05-26 出版日期:2026-08-25 发布日期:2026-10-15
作者简介:叶青(1989—),男,高级工程师,2012年毕业于东北石油大学资源勘察工程专业,现主要从事石油天然气地质综合研究工作。
基金资助:
中国石油“十四五”前瞻性项目“岩性地层油气藏成藏规律与关键技术研究”(2021DJ04)

Sedimentary-tectonic evolution and exploration prospects of the Mesozoic strata in the Hongde Area,Ordos Basin

Ye Qing^1,2, Zhang Zhongyi³, Zhang Tao⁴, Liu Baoxue^1,2, Zhang Xiaolei⁵, Liang Zhiguo^1,2, Hou Yunchao⁵, Cheng Junsheng^1,2

1. CNPC Mud Logging Technology R & D Center,Panjin,Liaoning 124010,China;
2. CNPC Greatwall Drilling Co.,Ltd.,Panjin,Liaoning 124010,China;
3. Xinjiang Research Institute,Huairou Laboratory,Urumqi,Xinjiang 830000,China;
4. Oil Production Plant 5 of PetroChina Changqing Oilfield Company,Xi'an,Shaanxi 710200,China;
5. Exploration and Development Research Institute,PetroChina Changqing Oilfield Company,Xi'an,Shaanxi 710018,China

Received:2025-04-14 Revised:2026-05-26 Online:2026-08-25 Published:2026-10-15

摘要/Abstract

摘要： 鄂尔多斯盆地西缘洪德地区中生界地层经历多期构造运动,构造复杂多样。为揭示该地区中生界地层油气成藏规律并指导下步勘探方向,通过井震结合、地震层拉平及构造演化分析等方法,对研究区地层沉积构造演化特征进行分析。结果表明:洪德地区中生界地层主要经历构造抬升期(三叠世末期)、稳定沉降期(侏罗世)、快速沉降期(早白垩世)、构造反转期(晚白垩世)4个构造演化时期;主要发育印支期、喜山期2套断裂系统,印支期,断裂以北东、北西向为主,控制断块型圈闭的形成,喜山期,受挤压作用力影响,发育北东东向走滑断层,将工区分为多个北东向展布的菱形断块;早白垩世是油气藏的主要充注期,来自盆地中部的长7段优质烃源岩大量供烃,西侧高部位大面积成藏,早白垩世天环坳陷的持续沉降造成构造西低东高,早期油藏遭受破坏,晚白垩世发生构造反转,盆地西缘抬升,油藏发生二次调整,形成现今构造-岩性油藏,具有含油饱和度低、含油幅度低、油藏低阻、油水关系复杂的特征;印支期形成的断块型构造圈闭是规模油气成藏的有利区带,晚白垩世形成的微幅度构造圈闭是精细勘探的重要领域。研究结果对洪德地区中生界地层的后续勘探具有一定指导意义。

关键词: 构造演化, 印支期, 成藏规律, 油气勘探, 洪德地区, 天环坳陷, 鄂尔多斯盆地

Abstract: The Mesozoic strata in the Hongde Area on the western margin of the Ordos Basin have experienced multiple tectonic movements,resulting in complex and diverse structures.To clarify the hydrocarbon accumulation patterns of the Mesozoic strata in this area and to guide subsequent exploration,an integrated workflow combining well-seismic integration,seismic horizon flattening,and tectonic evolution analysis was applied to investigate the sedimentary-tectonic evolution characteristics.The results show that the Mesozoic strata in the Hongde Area have experienced four tectonic evolution stages:a tectonic uplift stage(end of the Triassic),a stable subsidence stage(Jurassic),a rapid subsidence stage(Early Cretaceous),and a tectonic inversion stage(Late Cretaceous).Two fault systems were mainly developed,namely the Indosinian and Himalayan fault systems.During the Indosinian stage,faults were dominated by north-east-trending and north-west-trending orientations,controlling the formation of fault-block traps.During the Himalayan stage,affected by compressional stress, the north-east-east-trending strike-slip faults developed and divided the study area into multiple north-east-trending rhombic fault blocks.The Early Cretaceous was the main hydrocarbon charging period,with abundant hydrocarbon supply from high-quality source rocks of the Chang 7 in the central basin;large-scale accumulations formed on the western structural highs.Continuous subsidence of the Tianhuan Depression during the Early Cretaceous resulted in a structural configuration that is low in the west and high in the east,with early reservoirs damaged.Tectonic inversion occurred in the Late Cretaceous,and uplift of the western margin led to secondary adjustment of reservoirs,forming the present structural-lithologic reservoirs,which are characterized by low oil saturation,low oil-bearing amplitude,low-resistivity reservoirs,and complex oil-water relationships. Fault-block structural traps formed in the Indosinian stage are favorable zones for large-scale hydrocarbon accumulation,whereas low-amplitude structural traps formed in the Late Cretaceous are key domains for refined exploration.The results provide guidance for subsequent exploration of the Mesozoic strata in the Hongde Area.

Key words: tectonic evolution, Indosinian stage, hydrocarbon accumulation pattern, oil and gas exploration, the Hongde Area, Tianhuan Depression, the Ordos Basin

中图分类号:

TE122.3

叶青, 张忠义, 张涛, 刘宝学, 张晓磊, 梁治国, 侯云超, 程俊生. 鄂尔多斯盆地洪德地区中生界地层沉积构造演化及勘探前景[J]. 特种油气藏, 2026, 33(4): 9-15.

Ye Qing, Zhang Zhongyi, Zhang Tao, Liu Baoxue, Zhang Xiaolei, Liang Zhiguo, Hou Yunchao, Cheng Junsheng. Sedimentary-tectonic evolution and exploration prospects of the Mesozoic strata in the Hongde Area,Ordos Basin[J]. Special Oil & Gas Reservoirs, 2026, 33(4): 9-15.

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鄂尔多斯盆地洪德地区中生界地层沉积构造演化及勘探前景

Sedimentary-tectonic evolution and exploration prospects of the Mesozoic strata in the Hongde Area,Ordos Basin

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