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

卷:

第41卷

期数:

2019年第04期

页码:

459-474

栏目:

基础地质与矿产地质

出版日期:

2019-07-15

文章信息/Info

Title:

Characteristics and “Sweet Area(Section)” Evaluation of Continuous Tight & Shale Oil and Gas in Ordos Basin, North-central China

文章编号:

1672-6561(2019)04-0459-16

作者:

杨智¹; 邹才能¹; 付金华²; 吴松涛¹; 林森虎¹;  潘松圻¹; 王岚¹; 刘新社²; 牛小兵²

(1. 中国石油勘探开发研究院,北京 100083; 2. 中国石油长庆油田分公司,陕西 西安 710018)

Author(s):

YANG Zhi¹;  ZOU Cai-neng¹;  FU Jin-hua²;  WU Song-tao¹;  LIN Sen-hu¹;  PAN Song-qi¹;  WANG Lan¹;  LIU Xin-she²;  NIU Xiao-bing²

(1. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China; 2. Changqing Oilfield Company, PetroChina, Xi’an 710018, Shaanxi, China)

关键词:

致密油气;  页岩油气;  甜点区;  页岩层系;  非常规油气地质学;  连续型油气聚集;  共生盆地

Keywords:

tight oil and gas;  shale oil and gas;  sweet area;  shale stratum;  unconventional petroleum geology;  continuous hydrocarbon accumulation;  coexistence basin

分类号:

P618.130.2

DOI:

-

文献标志码:

A

摘要:

非常规页岩层系油气资源大面积连续分布,是未来全球油气供应的重要接替领域。提出了页岩层系油气的地质内涵,即烃源层系生成、滞留或就近聚集在生烃层系内部或紧邻生烃层系的致密储集层中,利用新技术可实现工业开采的连续分布油气资源,包括源储一体型和源储紧邻型两种资源类型。鄂尔多斯盆地是致密油气、页岩油气等非常规页岩层系油气资源的有利发育区,中生界三叠系延长组、上古生界石炭系—二叠系源储接触面积大,页岩油气、致密油气主要在源内或近源大面积连续分布,具有“普遍含油气、储层致密、低压、低丰度”的典型地质特征,具有稳定平缓的构造面貌、较高成熟源岩广布式生排烃和大面积致密储层叠置分布的有利成藏地质背景,致密油气“甜点区(段)”主要受生烃中心和厚层砂岩分布共同控制,页岩油气“甜点区(段)”主要受富有机质页岩规模、热演化程度、天然裂缝等共同控制。随着页岩层系油气的深入勘探开发,以大面积连续分布为标志特征的页岩层系油气地质理论将深入发展,成为石油天然气地质学的下一次大飞跃。

Abstract:

Continuous hydrocarbon accumulation over a large area is a distinguishing characteristic of unconventional shale stratum hydrocarbons, and has great petroleum resource potential. The geological connotation of shale stratum oil and gas is put forward, that is, continuous distribution of oil and gas resources is generated, detained or gathered close to the tight reservoirs within or adjacent to the hydrocarbon-generating stratum, and the industrial exploitation can be realized by using new technologies, including two resource types of source-reservoir integration and source-reservoir adjacency. Examples of unconventional hydrocarbon accumulations are Mesozoic Triassic shale oil province and Upper Paleozoic Carboniferous-Permian shale gas province in Ordos Basin. Tight oil and gas, and shale oil and gas in Ordos Basin are mainly distributed in source-kitchen or near-source reservoirs in large areas, which are typically characterized by hydrocarbon-bearing, tight reservoir, low formation pressure, and low resource abundance. Stable tectonic setting, widespread matured source rocks and large-scale superimposed tight reservoirs are favorable to hydrocarbon accumulation. “Sweet area(section)” of tight oil and gas is mainly controlled by the hydrocarbon-generation center and massive sandbodies. “Sweet area(section)” of shale oil and gas is mainly controlled by the organic-rich shale scale, thermal evolution and natural fractures. Research on such resources will be at the forefront of the future development of petroleum geology.

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相似文献/References:

备注/Memo

备注/Memo:

收稿日期:2019-01-07; 修回日期:2019-05-02投稿网址:http://jese.chd.edu.cn/
基金项目:国家重点基础研究发展计划(“九七三”计划)项目(2014CB239000); 国家科技重大专项项目(2016ZX05046)
作者简介:杨智(1980-),男,内蒙古五原人,高级工程师,工学博士,E-mail:yangzhi2009@petrochina.com.cn。

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