雅布赖盆地侏罗系岩性油气藏勘探突破与意义

doi:10.7623/syxb202411004

石油学报 ›› 2024, Vol. 45 ›› Issue (11): 1607-1620,1637.DOI: 10.7623/syxb202411004

• 地质勘探 • 上一篇

雅布赖盆地侏罗系岩性油气藏勘探突破与意义

淡伟宁¹, 尹柯惟¹, 李玲¹, 李晓红¹, 郭柳汐¹, 鱼占文¹, 王志成², 胡延旭¹, 刘凤妍¹

1. 中国石油华北油田公司勘探开发研究院河北任丘 062552;
2. 中国石油华北油田公司勘探事业部河北任丘 062552

收稿日期:2024-05-31 修回日期:2024-06-20 发布日期:2024-12-03
通讯作者: 尹柯惟,男,1989年11月生,2015年获成都理工大学硕士学位,现为中国石油华北油田公司勘探开发研究院高级工程师,主要从事含油气盆地地质综合研究。Email:471755208@qq.com
作者简介:淡伟宁,男,1971年12月生,1996年获中国石油大学(华东)学士学位,现为中国石油华北油田公司勘探开发研究院副院长、高级工程师,主要从事石油地质与勘探研究。Email:yjy_dwn@petrochina.com.cn
基金资助:
中国石油天然气股份有限公司华北油田公司项目"雅布赖盆地油气富集因素及有利勘探方向研究"(2023-HB-A15-01)资助。

Exploration breakthrough of Jurassic lithological oil and gas reservoirs in Yabulai Basin and its significance

Dan Weining¹, Yin Kewei¹, Li Ling¹, Li Xiaohong¹, Guo Liuxi¹, Yu Zhanwen¹, Wang Zhicheng², Hu Yanxu¹, Liu Fengyan¹

1. Exploration and Development Research Institute, PetroChina Huabei Oilfield Company, Hebei Renqiu 062552, China;
2. Exploration Department of PetroChina Huabei Oilield Company, Hebei Renqiu 062552, China

Received:2024-05-31 Revised:2024-06-20 Published:2024-12-03

摘要/Abstract

摘要： 泛河西走廊盆地群发育众多中—小型盆地,该地区历经多期次改造,油气保存条件差,发育短轴小型沉积体系,储层致密,前期勘探以非常规油气为主,雅布赖盆地为其中的典型代表。为了进一步指导雅布赖盆地的油气勘探,综合岩心、岩石薄片、录井、测井及地球化学等资料,对雅布赖盆地侏罗系油气藏的储层地质条件和油气成藏特征开展了深入研究。研究结果表明:①盆地的构造-沉积演化经历了多期的成盆与改造过程,盆地两翼构造改造强,而盆地内部主体改造弱,保存条件好;②发育南、北双向三角洲沉积体系,斜坡带继承性的古地貌(沉积坡折和古沟谷)控制了砂体的展布方向和有利储层分布,储层在纵向上与最大湖泛面处的烃源岩叠置,形成自生自储的岩性油藏。雅布赖盆地的油气勘探在新油气成藏模式的指导下,部署的钻井钻遇较好储层,试油均获工业油流,一改以往勘探低效的不利局面。雅布赖盆地中—深层发育地层油气藏、潜山油气藏等潜力领域,多层系立体勘探有望实现持续突破。研究成果将有力推动雅布赖盆地勘探发现,同时也将开辟泛河西走廊盆地群中—小型盆地常规—非常规并举的油气勘探新局面。

关键词: 泛河西走廊盆地群, 雅布赖盆地, 侏罗系, 岩性油气藏, 古地貌

Abstract: The Pan-Hexi Corridor Basin group has developed numerous small- and medium-sized basins. Since undergoing multiple stages of transformation, the area has poor oil-gas preservation conditions, small short-axis sedimentary systems, and tight reservoirs. Early exploration mainly focuses on unconventional oil and gas, especially in Yabulai Basin. To guide the oil-gas exploration in Yabulai Basin, the geological conditions and hydrocarbon accumulation characteristics of Jurassic oil-gas reservoirs in Yabulai Basin are studied based on core, thin section, well log, logging and geochemical data. The result shows as follows. (1)The tectonic-sedimentary evolution of the basin has gone through multiple stages of basin formation and transformation. The two wings of the basin have undergone strong transformation, but the main body of the basin has good preservation conditions due to weak transformation. (2)The bidirectional delta sedimentary systems are developed in the south and north of Yabulai Basin, where the distribution of sand bodies and favorable reservoirs are controlled by the inherited paleo-landforms (sedimentary slope breaks and ancient valleys) of the slope zone. The reservoir is superimposed vertically with the source rocks at the maximum lake flood surface, thus forming a self-generating and self-storing lithological reservoir. Guided by the new oil-gas accumulation model, the drilling rigs deployed in Yabulai Basin encountered good reservoirs and obtained industrial oil flow during oil testing, thus improving the inefficient exploration in the past. In addition, the potential areas such as stratigraphic and buried hill oil-gas reservoirs are developed in the deep strata of the basin, and multi-layered three-dimensional exploration is expected to achieve sustainable breakthroughs. The research results will strongly promote the exploration and discovery of Yabulai Basin, and also open up a new era of conventional and unconventional oil-gas exploration in small- and medium-sized basins of the Pan Hexi Corridor Basin group.

Key words: Pan-Hexi Corridor Basin group, Yabulai Basin, Jurassic, lithologic reservoir, paleo-landform

中图分类号:

TE132.1

淡伟宁, 尹柯惟, 李玲, 李晓红, 郭柳汐, 鱼占文, 王志成, 胡延旭, 刘凤妍. 雅布赖盆地侏罗系岩性油气藏勘探突破与意义[J]. 石油学报, 2024, 45(11): 1607-1620,1637.

Dan Weining, Yin Kewei, Li Ling, Li Xiaohong, Guo Liuxi, Yu Zhanwen, Wang Zhicheng, Hu Yanxu, Liu Fengyan. Exploration breakthrough of Jurassic lithological oil and gas reservoirs in Yabulai Basin and its significance[J]. Acta Petrolei Sinica, 2024, 45(11): 1607-1620,1637.

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雅布赖盆地侏罗系岩性油气藏勘探突破与意义

Exploration breakthrough of Jurassic lithological oil and gas reservoirs in Yabulai Basin and its significance

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