准噶尔盆地达巴松凸起石炭系油气成藏与盆北1井勘探突破

doi:10.7623/syxb202411003

石油学报 ›› 2024, Vol. 45 ›› Issue (11): 1592-1606.DOI: 10.7623/syxb202411003

• 地质勘探 • 上一篇

准噶尔盆地达巴松凸起石炭系油气成藏与盆北1井勘探突破

阿布力米提·依明¹, 刘海磊¹, 蒋文龙¹, 潘进¹, 丁修建², 王学勇¹, 苏东旭¹, 朱永才¹, 李宗浩¹, 王江涛¹, 蒋中发¹, 李昂³, 钱亮蓉²

1. 中国石油新疆油田公司勘探开发研究院新疆克拉玛依 834000;
2. 中国石油大学(华东)地球科学与技术学院山东青岛 266580;
3. 吉林大学地球科学学院吉林长春 130061

收稿日期:2024-07-02 修回日期:2024-08-28 发布日期:2024-12-03
作者简介:阿布力米提·依明,男,1970年9月生,2021年获中国石油大学(华东)博士学位,现为中国石油新疆油田公司勘探开发研究院教授级高级工程师,主要从事风险勘探工作。Email:ablmt@petrochina.com.cn
基金资助:
中国石油天然气集团有限公司油气与新能源分公司科技专项(2023YQX10106)资助。

Carboniferous hydrocarbon accumulation of Dabasong uplift and exploration breakthrough of Well Penbei1 in Junggar Basin

Ablimit Yiming¹, Liu Hailei¹, Jiang Wenlong¹, Pan Jin¹, Ding Xiujian², Wang Xueyong¹, Su Dongxu¹, Zhu Yongcai¹, Li Zonghao¹, Wang Jiangtao¹, Jiang Zhongfa¹, Li Ang³, Qian Liangrong²

1. Research Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Xinjiang Karamay 834000, China;
2. School of Geosciences, China University of Petroleum(East China), Shandong Qingdao 266580, China;
3. College of Earth Sciences, Jilin University, Jilin Changchun 130061, China

Received:2024-07-02 Revised:2024-08-28 Published:2024-12-03

摘要/Abstract

摘要： 准噶尔盆地西部古隆起邻近生烃灶,石炭系具有良好的油气勘探潜力。为探索石炭系的勘探潜力,先后部署莫深1井、达探1井和盐探1井等多口风险井,均未获得勘探突破。2023年,盆北1井获得高产工业气流,证实了准噶尔盆地西部古隆起大型构造内的石炭系具备天然气高产条件,这对进一步推动盆地西部古隆起的石炭系油气勘探具有重要意义。为深化石炭系油气成藏的整体研究,基于对达巴松凸起石炭系油气藏形成的地质条件开展的系统梳理和分析认为,石炭系油气藏中的天然气主要来自石炭系和二叠系烃源岩,原油主要来自二叠系烃源岩。盆北1井石炭系上段主要发育含角砾岩屑凝灰岩,其储集空间以晶内溶蚀孔最为发育,为高孔、中—低渗储层。盆北1井石炭系气藏为构造背景控制下的层状气藏,油气沿构造顶部的高孔隙度火山岩富集,油气充注期次多、强度大。建立了盆北1井"石炭系—二叠系双源供烃、古凸起富集、构造-岩体共同控藏"的成藏模式,该成藏模式显著拓宽了研究区石炭系的勘探领域。盆北1井的勘探突破和相关研究为深化油气藏认识和持续开展准噶尔盆地西部深层古隆起领域风险探井部署奠定了基础。

关键词: 准噶尔盆地, 达巴松凸起, 石炭系天然气, 双源供烃, 成藏模式

Abstract: The Carboniferous palaeohighs in the western Junggar Basin, adjacent to hydrocarbon kitchens, present significant potential for oil and gas exploration. To explore the Carboniferous exploration potential, several high-risk wells, including Moshen1, Datan1, and Yantan1, were drilled, without achieving breakthroughs. In 2023, Well Penbei1 obtained a high-yield industrial gas flow, confirming that the large-scale Carboniferous palaeohigh in the western Junggar Basin have favorable conditions for high-yield production of natural gas. This is of important significance for promoting Carboniferous hydrocarbon exploration in the western Junggar Basin. To further carry out an overall study on the Carboniferous hydrocarbon accumulation, the paper systematically summarizes the geological conditions in Dabasong uplift. It is found that natural gas in the Carboniferous reservoirs primarily originates from the Carboniferous and Permian source rocks, while the oil mainly comes from the Permian source rocks. Breccia-bearing tuff is mainly developed in the Upper Carboniferous of Well Penbei1, characterized with the most developed intergranular dissolution pores, thus forming high-porosity, medium-to-low permeability reservoirs. The research of hydrocarbon accumulation process proves the Carboniferous layered gas reservoir formed under the tectonic setting in Well Penbei1, where the hydrocarbons accumulate in high-porosity volcanic rocks at the top, characterized by multi-stage intensified oil and gas charging. On this basis, a hydrocarbon accumulation model is established and described as "dual-source hydrocarbon supply from the Carboniferous and Permian sources, hydrocarbon enrichment in palaeohighs, and hydrocarbon accumulation co-controlled by tectonic and volcanic rock", which significantly broadens the exploration of the Carboniferous reservoir. The breakthrough in hydrocarbon exploration in Well Penbei1 and related researches have laid a solid foundation for further understanding oil reservoirs and ongoing risk-based deployment of palaeohighs in deep areas of the western Junggar Basin.

Key words: Junggar Basin, Dabasong uplift, Carboniferous natural gas, dual-source hydrocarbon supply, accumulation model

中图分类号:

TE132.1

阿布力米提·依明, 刘海磊, 蒋文龙, 潘进, 丁修建, 王学勇, 苏东旭, 朱永才, 李宗浩, 王江涛, 蒋中发, 李昂, 钱亮蓉. 准噶尔盆地达巴松凸起石炭系油气成藏与盆北1井勘探突破[J]. 石油学报, 2024, 45(11): 1592-1606.

Ablimit Yiming, Liu Hailei, Jiang Wenlong, Pan Jin, Ding Xiujian, Wang Xueyong, Su Dongxu, Zhu Yongcai, Li Zonghao, Wang Jiangtao, Jiang Zhongfa, Li Ang, Qian Liangrong. Carboniferous hydrocarbon accumulation of Dabasong uplift and exploration breakthrough of Well Penbei1 in Junggar Basin[J]. Acta Petrolei Sinica, 2024, 45(11): 1592-1606.

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准噶尔盆地达巴松凸起石炭系油气成藏与盆北1井勘探突破

Carboniferous hydrocarbon accumulation of Dabasong uplift and exploration breakthrough of Well Penbei1 in Junggar Basin

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