油气藏评价与开发 ›› 2019, Vol. 9 ›› Issue (5): 1-13.

• 专家论坛 •    下一篇

中国南方常压页岩气勘探开发面临的挑战及对策

方志雄   

  1. 中国石化华东油气分公司,江苏 南京 210019
  • 收稿日期:2019-08-07 出版日期:2019-10-26 发布日期:2019-10-26
  • 作者简介:方志雄(1962 —),男,博士,教授级高级工程师,享受国务院特殊津贴专家,本刊第二届编委会常务副主任,从事油气勘探开发研究工作。通讯地址:江苏省南京市建邺区江东中路315号中泰国际广场6号楼,邮政编码:210019。E-mail: fangzx. hdsj@sinopec.com
  • 基金资助:
    “十三五”国家科技重大专项“彭水地区常压页岩气勘探开发示范工程”(2016ZX05061);中国石化科技开发部项目“渝东南盆缘转换带页岩气富集主控因素研究”(P18057-2)

Challenges and countermeasures for exploration and development of normal pressure shale gas in southern China

FANG Zhixiong   

  1. Sinopec East China Oil and Gas Company, Nanjing, Jiangsu 210019, China
  • Received:2019-08-07 Online:2019-10-26 Published:2019-10-26

摘要:

常压页岩气是中国页岩气勘探开发的主要类型之一,资源潜力大,发展前景广阔。近年来,中国石化华东油气分公司持续在渝东南盆缘构造复杂带南川—武隆地区开展常压页岩气勘探开发实践,在常压页岩气基础地质理论研究、低成本工程工艺技术攻关、绿色矿山建设等方面取得积极进展,建立了常压页岩气“三因素控气”富集高产地质理论、页岩储层分类评价标准和目标评价体系,创新低密度三维地震勘探、“二开制”井身结构完井、“投球转向、连续加砂”、“三阶梯”压裂加砂、电动压裂、高效排水采气6项常压页岩气低成本工程工艺技术,初步形成常压页岩气开发技术策略,探索一体化绿色勘探开发模式,实现常压页岩气勘探多点突破和高效开发,常压页岩气展现良好的勘探开发前景。但中国常压页岩气勘探开发尚处于起步和探索阶段,仍面临理论创新、技术突破、效益开发等诸多挑战,因此,对中国常压页岩气产业发展提出了5点对策:①深化页岩气富集高产主控因素研究,强化目标评价;②加快优快钻完井配套技术攻关研究,进一步提速、提效;③加强高效压裂改造工艺技术研究,增产、降本、增效;④加强常压页岩气生产规律研究,制定效益开发技术策略;⑤全面推行页岩气地质工程最优化决策体系建设,管理提质创效。以期加快推动我国常压页岩气产业发展。

关键词: 中国南方, 常压页岩气, 五峰组—龙马溪组;, 勘探开发, 地质工程一体化, 最优化决策体系

Abstract:

Normal pressure shale gas is one of the main types of shale gas exploration and development in China. It has great resource potential and broad prospects. In recent years, Sinopec East China Oil and Gas Company has continued to carry out normal pressure shale gas exploration and practice in Nanchuan-Wulong area of the basin-margin transition zone in southeastern Chongqing. Positive progress has been made in the following aspects such as basic geological theory research, low cost engineering technology research, green mine construction of normal pressure shale gas. The enrichment and high yield geological theory of “three factors controlling gas”, and the classification and evaluation standard and the target evaluation system of shale reservoirs are established. Six low cost engineering technologies of normal pressure shale gas are proposed, that is, low density 3D seismic exploration, well completion at the “second” section, “drop ball steering+continuous sand addition”, “three steps” fracturing sand addition, electric fracturing and high efficiency drainage gas production. The development technology strategy of normal pressure shale gas is preliminarily formed. The integrated green exploration and development mode is put forward. More breakthrough and efficient development of normal pressure shale gas exploration are realized. Normal pressure shale gas shows a good prospect of exploration and development. However, the exploration and development of normal pressure shale gas in China is still in its infancy and exploration stage. There are still many challenges in aspects such as theoretical innovation, technological breakthrough and benefit development. So that five countermeasures are proposed for the development of China’s normal pressure shale gas industry: ①deepen the research on the main controlling factors of shale gas enrichment and high-yield, and strengthen the target evaluation; ②speed up the research on the supporting technology of excellent drilling and completion for the further acceleration and efficiency increasing; ③strengthen the research on high-efficiency fracturing technology to increase production, reduce cost and increase efficiency; ④strengthen the research on the production rule of normal pressure shale gas, and formulate the technical strategy of benefit development; ⑤fully implement the integrated operation mode of shale gas geological engineering, improve the management quality and create benefit. These countermeasures are counted on accelerating the development of normal pressure shale gas industry in China.

Key words: southern China, normal pressure shale gas, wufeng formation-longmaxi formation, exploration and development, geological engineering integration

中图分类号: 

  • TE122