川东红星地区HY1井二叠系页岩气勘探突破及意义

doi:10.7623/syxb202302002

石油学报 ›› 2023, Vol. 44 ›› Issue (2): 241-252.DOI: 10.7623/syxb202302002

川东红星地区HY1井二叠系页岩气勘探突破及意义

胡德高¹, 周林², 包汉勇², 刘皓天², 刘超², 孟志勇², 赵帅², 王建²

1. 中国石油化工股份有限公司江汉油田分公司湖北潜江 433100;
2. 中国石油化工股份有限公司江汉油田分公司勘探开发研究院湖北武汉 430070

收稿日期:2022-07-14 修回日期:2022-10-25 出版日期:2023-02-25 发布日期:2023-03-08
通讯作者: 周林,男,1985年3月生,2016年获长江大学博士学位,现为中国石油化工股份有限公司江汉油田分公司勘探开发研究院副研究员,主要从事非常规油气勘探开发工作。Email:380026198@qq.com
作者简介:胡德高,男,1965年9月生,1986年获大连理工大学硕士学位,现为中国石油化工股份有限公司江汉油田分公司教授级高级工程师,主要从事油气勘探开发与管理工作。Email:hudg.jhyt@sinopec.com
基金资助:
中国石油化工股份有限公司技术开发项目(P20059-5,P21087-2)资助。

Breakthrough and significance of Permian shale gas exploration of Well HY1 in Hongxing area,eastern Sichuan Basin

Hu Degao¹, Zhou Lin², Bao Hanyong², Liu Haotian², Liu Chao², Meng Zhiyong², Zhao Shuai², Wang Jian²

1. Sinopec Jianghan Oilfield Company, Hubei Qianjaing 433100, China;
2. Exploration and Production Research Institute, Sinopec Jianghan Oilfield Company, Hubei Wuhan 430070, China

Received:2022-07-14 Revised:2022-10-25 Online:2023-02-25 Published:2023-03-08

摘要/Abstract

摘要： 2020年底,川东红星地区建南区块针对上二叠统吴家坪组二段部署实施的第1口页岩气风险探井HY1井在压裂测试阶段获得天然气产量8.9×10⁴m³/d,实现了中国二叠系新层系页岩气勘探的重大突破。综合HY1井的钻探成果和岩心、钻井、测井、录井及X射线衍射全岩矿物分析、碳同位素等分析测试资料,系统分析了红星地区二叠系页岩气地质特征和富集主控因素。红星地区二叠系发育两套深水陆棚亚相页岩,具有优质页岩厚度薄、有机质丰度高、孔隙度高、含气量高、脆性矿物含量高的"一薄四高"特征。广泛发育的深水陆棚亚相页岩是二叠系页岩气富集的物质基础,有机-无机协同作用提供了良好的储集空间和较强的吸附能力,良好的保存条件是红星地区页岩气富集的关键。HY1井的勘探突破表明:①中国南方二叠系页岩气具有较好的勘探前景,是增储上产的重点领域;②盆外复杂构造区内相对弱变形区是页岩气勘探的重要方向;③地质工程一体化是实现二叠系页岩气勘探突破的重要保障;④薄储层、超深层页岩的改造技术和酸性页岩气藏采输气工艺是实现二叠系页岩气规模效益开发的攻关方向。研究认识对于具有相似地质背景的页岩气藏的勘探开发具有重要借鉴与指导意义。

关键词: HY1井, 二叠系, 吴家坪组, 页岩气, 勘探突破, 红星地区

Abstract: At the end of 2020, Well HY1, the first shale gas risk exploratory well in Jiannan block of Hongxing area, eastern Sichuan Basin, deployed and implemented for Member 2 of the Upper Permian Wujiaping Formation, obtained a natural gas production of 8.9×10⁴m³/d in the fracturing test stage, achieving a major breakthrough in the exploration of shale gas in the Permian in China. Comprehensively based on the exploration results as well as the core, drilling, well logging, well log, X-ray diffraction whole-rock mineral analysis, and carbon isotope of Well HY1, the paper systematically analyzes the geological characteristics and main enrichment-controlling factors of Permian shale gas in Hongxing area. Two sets of deep-water shelf subfacies shale are developed in the Permian in Hongxing area, which are characterized by thin high-quality shale, high abundance of organic matters, high porosity, high gas content and high content of brittle minerals. The widely developed deep-water shelf subfacies shale is the material basis for the enrichment of Permian shale gas. The organic-inorganic synergism provides good reservoir space and high adsorption capacity. Good preservation conditions are the key to the enrichment of shale gas in Hongxing area. The breakthrough in exploration of Well HY1 demonstrates as below. (1) The Permian shale gas in southern China has a good exploration prospect and is a key field for increasing reserves and production. (2) The relatively weak deformation area in the complex tectonic area outside the basin indicates an important direction for shale gas exploration. (3) The integration of geological engineering is an important guarantee for the breakthrough in Permian shale gas exploration. (4) The modification technology of thin reservoir and ultra-deep shale and the production and transportation technology of acid shale gas reservoir are the key to a breakthrough in the large-scale high-efficiency development of Permian shale gas. The research and understanding have great reference and guiding significance for the exploration and development of shale gas reservoirs with similar geological backgrounds.

Key words: Well HY1, Permian, Wujiaping Formation, shale gas, breakthrough in exploration, Hongxing area

中图分类号:

TE132.2

胡德高, 周林, 包汉勇, 刘皓天, 刘超, 孟志勇, 赵帅, 王建. 川东红星地区HY1井二叠系页岩气勘探突破及意义[J]. 石油学报, 2023, 44(2): 241-252.

Hu Degao, Zhou Lin, Bao Hanyong, Liu Haotian, Liu Chao, Meng Zhiyong, Zhao Shuai, Wang Jian. Breakthrough and significance of Permian shale gas exploration of Well HY1 in Hongxing area,eastern Sichuan Basin[J]. Acta Petrolei Sinica, 2023, 44(2): 241-252.

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川东红星地区HY1井二叠系页岩气勘探突破及意义

Breakthrough and significance of Permian shale gas exploration of Well HY1 in Hongxing area,eastern Sichuan Basin

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