鄂尔多斯盆地杭锦旗地区晚古生代盆缘古地貌控砂及油气勘探意义

胡华蕊; 邢凤存; 齐荣; 王超; 刘晓晨; 陈林; 陈孝全

doi:10.11781/sysydz201904491

鄂尔多斯盆地杭锦旗地区晚古生代盆缘古地貌控砂及油气勘探意义

doi: 10.11781/sysydz201904491

胡华蕊^1,2,
邢凤存^1,2, ,,
齐荣³,
王超⁴,
刘晓晨^5,6,
陈林⁷,
陈孝全^1,2

1. 油气藏地质与开发工程国家重点实验室(成都理工大学), 成都 610059;
2. 成都理工大学沉积地质研究院, 成都 610059;
3. 中国石化华北油气分公司勘探开发研究院, 郑州 450006;
4. 中国石化江汉油田分公司勘探开发研究院, 湖北 430223;
5. 中国地质大学(武汉) 构造与油气资源教育部重点实验室, 武汉 430074;
6. 中国地质大学资源学院, 武汉 430074;
7. 武汉地质调查中心, 武汉 430205

基金项目:

国家自然科学基金项目（41672103，41302089）和成都理工大学中青年骨干教师培养计划项目联合资助。

详细信息

作者简介:
胡华蕊(1983-),女,博士研究生,从事沉积学、层序地层学等研究。E-mail:hhr_889@163.com。

通讯作者:
邢凤存(1978-),男,博士,副教授,从事沉积学、油气储层地质学和层序地层学等研究。E-mail:xingfengcun@163.com。

中图分类号: TE121.3
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出版历程
- 收稿日期: 2019-02-21
- 修回日期: 2019-06-28
- 刊出日期: 2019-07-28

Paleogeomorphologic features and their controls on sandbody distribution on basin margin during Late Paleozoic Era and significance for petroleum exploration, Hangjinqi area, Ordos Basin

HU Huarui^1,2,
XING Fengcun^{1,2
, ,},
QI Rong³,
WANG Chao⁴,
LIU Xiaochen^5,6,
CHEN Lin⁷,
CHEN Xiaoquan^1,2

1. State Key Laboratory of Oil and Gas Reservoir Geology(Chengdu University of Technology), Chengdu, Sichuan 610059, China;
2. Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu, Sichuan 610059, China;
3. Research Institute of Exploration and Development, SINOPEC Huabei Oilfield Company, Zhengzhou, Henan 450006, China;
4. Research Institute of Exploration and Development, SINOPEC Jianghan Oilfield, Wuhan, Hubei 430223, China;
5. Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China University of Geosciences, Wuhan, Hubei 430074, China;
6. Faculty of Earth Resource, China University of Geosciences, Wuhan, Hubei 430074, China;
7. Wuhan Center of China Geological Survey, Wuhan, Hubei 430205, China

摘要

摘要: 使用井震资料，在高精度层序地层格架建立的基础上，对鄂尔多斯盆地杭锦旗地区晚古生代古地貌进行了恢复，探讨了古地貌演化及其沉积和砂体响应。该区上石炭统太原组-中二叠统下石盒子组盒1段沉积期，古地貌具有东西向两隆三洼格局，垂向上划分出太原组-山1段沟谷超覆充填、山2段-盒1段隆洼继承性填平、盒2段-盒3段均一平整等3个古地貌演化阶段。不同地貌演化阶段控制了砂体结构演化，沟谷超覆充填阶段，太原组仅分布在泊尓江海子断裂南部，反映了该断裂的控制性，北部沟谷输砂、南部低洼区聚砂明显，砂体以垂向加积样式分布于隆起分隔的沟谷及低洼区域；隆洼继承性填平阶段，地貌逐渐平整化，断裂控制不明显，砂体连片且具有一定的侧向摆动，3个继承性低洼区为主砂体区；均一平整阶段，物源北退，地貌平整，形成了"泥包砂"且横向摆动的孤立砂体分布结构。
- 古地貌恢复 /
- 致密砂岩 /
- 晚古生代 /
- 杭锦旗地区 /
- 鄂尔多斯盆地
Abstract: The paleogeomorphology in the Hangjinqi area of the Ordos Basin during the Late Paleozoic was restored by establishing a high-resolution sequence stratigraphy framework based on seismic data. The paleogeomorphologic features and their controls on sandbody distribution were discussed. When the Carboniferous Taiyuan Formation to the first member of Permain Shihezi Formation deposited, the study area featured by two distinct uplifts and three depressions from east to west. Vertically, three evolution periods were identified. In the first period, incised valleys developed and were overlapped and filled from the Taiyuan Formation to the first member of Shanxi Formation. In the second period, uplifts and depressions were inherited and gradually filled from the second member of Shanxi Formation to the first member of Shihezi Formation. In the last period, paleogeo-morphology was gentle and flat from the second to the third member of Shihezi Formation. Different periods of geomorphological evolution controlled the sandbody structure evolution. At the first period, the Taiyuan Formation distributed in the southern of Boerjianghaizi fault, which indicates the influence of the fault. Sand transported from the incised valleys in the north to deposit in the depressions in the south. Aggradational sandbodies deposited in the incised valleys and depressions. In the second period, the paleogeomorphology gradually became more and more flat, and faults showed weak controls on sandbody distribution. Sandbodies were contiguous with a certain degree of lateral oscillation. The inherited three depressions were the main distribution area of sandbodies. In the final period, sources retreated northward, and the paleogeomorphology was flat which formed the structure of mudstone-enclosed isolated sandbodies characterized by lateral isolation.
- paleogeomorphology reconstruction /
- tight sandstone /
- Late Paleozoic Era /
- Hangjinqi area /
- Ordos Basin

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