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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第45卷

期数:

2023年第01期

页码:

42-53

栏目:

沉积地质与油气勘探

出版日期:

2023-01-15

文章信息/Info

Title:

Hydrocarbon Sources and Accumulation Characteristics of Meso-Neoproterozoic Reservoirs in Jibei-Liaoxi Area, China

文章编号:

1672-6561(2023)01-0042-12

作者:

张剑锋¹; 肖 洪¹; 2*; 李美俊¹; 2; 王延山³; 黄双泉³; 徐建斌³; 陈喜玲³

(1. 中国石油大学(北京)油气资源与探测国家重点实验室,北京 102249; 2. 中国石油大学(北京)地球科学学院,北京 102249; 3. 中国石油辽河油田分公司勘探开发研究院,辽宁 盘锦 124010)

Author(s):

ZHANG Jian-feng¹;  XIAO Hong¹; 2*;  LI Mei-jun¹; 2;  WANG Yan-shan³;  HUANG Shuang-quan³;  XU Jian-bin³;  CHEN Xi-ling³

(1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China; 2. College of Geosciences, China University of Petroleum, Beijing 102249, China; 3. Exploration and Development Research Institute, Liaohe Oilfield Company, PetroChina, Panjin 124010, Liaoning, China)

关键词:

古油藏;  油源对比;  中—新元古界;  烃源岩;  分子标志化合物;  洪水庄组;  冀北—辽西地区

Keywords:

paleo-reservoir;  oil-source correlation;  Meso-Neoproterozoic;  source rock;  molecular marker;  Hongshuizhuang Formation;  Jibei-Liaoxi area

分类号:

P618.13

DOI:

10.19814/j.jese.2022.05027

文献标志码:

A

摘要:

在全球诸多盆地发现的中—新元古界原生油气苗和商业性油气聚集,展示了这些古老沉积地层具有良好的勘探潜力和前景。基于冀北—辽西地区烃源岩与储层沥青中三环萜烷、四环萜烷、重排藿烷、13α(正烷基)-三环萜烷和甾烷等分子标志化合物对比研究,明确了双洞背斜铁岭组和兴隆1井雾迷山组沥青分别源自洪水庄组和高于庄组烃源岩; 而韩1井骆驼岭组上、下段储层沥青表现出不同的烃类来源,分别源自高于庄组和洪水庄组烃源岩。冀北—辽西地区古老地层至少发生了3期油气充注,对应3类古油藏:第Ⅰ类古油藏源自高于庄组烃源岩,其成藏时间早,经历了长期深埋和次生改造,油藏的保存条件较差; 第Ⅱ类古油藏为早期油藏破坏调整而形成的次生油藏,其成藏规模受到了较大制约; 第Ⅲ类古油藏源自洪水庄组烃源岩,成藏时间晚,遭受构造破坏弱,有相对较好的成藏和保存条件,是研究区古老油气勘探的潜在目标。

Abstract:

The discovery of Meso-Neoproterozoic primary bitumen seepages and commercial hydrocarbon accumulations in many basins around the world shows the good exploration potential and prospects of ultra-ancient oil and gas resources. Correlation of molecular markers including regular tricyclic terpanes, tetracyclic terpanes, rearranged hopanes, 13α(n-alkyl)-tricyclic terpanes and regular steranes in determined source rocks and reservoir bitumens in Jibei-Liaoxi area were analyzed. The results show that the reservoir bitumens in Tieling Formation of Shuangdong anticline and Wumishan Formation of well XL-1 originate from source rocks of Hongshuizhuang and Gaoyuzhuang Formations, respectively; the bitumen in the upper and lower members of Luotuoling Formation in well H-1 shows different hydrocarbon sources, which originate from source rocks of Gaoyuzhuang and Hongshuizhuang Formations, respectively. Three oil charging periods occur in the ultra-ancient reservoirs in the study area, which corresponds to the formation of three types of paleo-reservoirs. Type Ⅰ paleo-reservoir mainly originates from source rock of Gaoyuzhuang Formation in the early stage(1 500-1 300 Ma), which has experienced long-term deep burial and secondary effects, resulting in poor preservation conditions; type Ⅱ paleo-reservoir is secondary reservoir formed by hydrocarbon adjustment after the type Ⅰ paleo-reservoir destroyed, resulting in a limited accumulation scale; type Ⅲ paleo-reservoir mainly originates from source rock of Hongshuizhuang Formation in the late stage(240-230 Ma), which has relative few opportunity of structure destruction. Therefore, type Ⅲ paleo-reservoir has better accumulation and preservation conditions, and is considered as the principal target of ultra-ancient petroleum exploration in the study area.

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相似文献/References:

备注/Memo

备注/Memo:

收稿日期:2022-05-17; 修回日期:2022-09-12投稿网址:http:∥jese.chd.edu.cn/
基金项目:国家自然科学基金项目(42202134); 中国石油辽河油田分公司委托项目(LHYT-KTKFYJY-2018-JS-9798)
作者简介:张剑锋(1985-),男,陕西宝鸡人,理学硕士研究生,E-mail:zhangjianfeng@cup.edu.cn。
*通讯作者:肖 洪(1990-),男,湖南醴陵人,讲师,理学博士,博士后,E-mail:xiaohong@cup.edu.cn。

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