古地理学报 ›› 2023, Vol. 25 ›› Issue (6): 1257-1276. doi: 10.7605/gdlxb.2023.05.083

• 中国石油大学70周年校庆专辑(Ⅱ) • 上一篇    下一篇

中国古老超深层海相碳酸盐岩储集层成因研究新进展*

乔占峰1,2, 于洲1,2, 佘敏1,2, 潘立银1,2, 张天付1,2, 李文正1,2, 沈安江1,2   

  1. 1 中国石油杭州地质研究院,浙江杭州 310023;
    2 中国石油天然气集团有限公司碳酸盐岩储层重点实验室,浙江杭州 310023
  • 收稿日期:2023-04-10 修回日期:2023-05-22 出版日期:2023-12-01 发布日期:2023-09-28
  • 通讯作者: 沈安江,男,1965年生,博士,教授级高级工程师,主要从事碳酸盐岩沉积储层研究工作。E-mail: shenaj_hz@petroChina.com.cn。
  • 作者简介:乔占峰,男,1983年生,博士,高级工程师,主要从事碳酸盐岩沉积储层地质研究工作。E-mail: qiaozf_hz@petroChina.com.cn。
  • 基金资助:
    *中国石油天然气股份有限公司科学研究与技术开发项目(编号: 2021DJ0503)资助

Progresses on ancient ultra-deeply buried marine carbonate reservoir in China

QIAO Zhanfeng1,2, YU Zhou1,2, SHE Min1,2, PAN Liyin1,2, ZHANG Tianfu1,2, LI Wenzheng1,2, SHEN Anjiang1,2   

  1. 1 PetroChina Hangzhou Research Institute of Geology,Hangzhou 310023,China;
    2 Key Laboratory of Carbonate Reservoir,CNPC,Hangzhou 310023,China
  • Received:2023-04-10 Revised:2023-05-22 Online:2023-12-01 Published:2023-09-28
  • Contact: SHEN Anjiang,born in 1965,is a professor-level senior engineer with Ph.D. He is mainly engaged in research on carbonate reservoir.
  • About author:QIAO Zhanfeng,born in 1983,is a senior engineer with Ph.D. He is mainly engaged in research on carbonate reservoir geology. E-mail: qiaozf_hz@petroChina.com.cn.
  • Supported by:
    ; Scientific Research and Technology Development Project of PetroChina(No.2021DJ0503)

摘要: 中国海相碳酸盐岩具有年代老、埋藏深、后期成岩改造强的特点,随着油气勘探逐渐走向“更老”、“更深”、“更复杂”的深层和超深层,碳酸盐岩储集层成因和分布规律成为影响油气勘探开发效益的关键因素。近年来,在塔里木、四川和鄂尔多斯三大海相盆地多个领域取得了一系列的勘探新突破,古老超深层碳酸盐岩储集层地质理论和相关技术取得显著进展。地质理论进展包括: (1)近地表环境成因孔隙构成超深层碳酸盐岩储集层的基础; (2)浅埋藏阶段的孔隙保持是决定超深层储集层质量的关键; (3)构造活动驱动深部流体运动对储集层质量具有重要改造作用。技术进展包括微量稀土元素面扫、激光U-Pb定年、团簇同位素和非传统稳定同位素等储集层地球化学实验分析技术和高温高压溶蚀模拟技术。勘探的深入和分析技术手段的进步,显著提升了对三大盆地重点领域规模优质储集层发育及分布规律的认识,为下步油田勘探取得重大突破奠定了基础。

关键词: 超深层, 海相碳酸盐岩, 规模优质储集层, 储集层类型, 地质理论进展, 技术进展, 中国典型盆地

Abstract: Marine carbonate rocks in China are featured by old age,deep burial,and strongly diagenetic modification during the burial stage. As oil and gas exploration gradually extents towards “older”,“deeper”,and “more complex”deep and ultra-deep layers,the genesis and distribution patterns of carbonate reservoirs have become key factors affecting the efficiency of oil and gas exploration and development. In recent years,a series of exploration breakthroughs have been made in multiple exploration fields in the Tarim,Sichuan,and Ordos basins. Meanwhile,substantial progress has been made both in the geological theory and in the related technologies of ancient deep carbonate reservoirs. Advancements in geological theory include the following aspects: (1)porosity formecl under subaerial environment constitutes the basis of the deeply-buried carbonate reservoir size;(2)the preservation of porosity during shallow burial period is the key to the size and the quality of the deeply-buried dolomite reservoir;and(3)tectonic activity-driven deep fluid movements play an important role in modifying the quality of deeply-buried carbonate reservoir. Technological advancements include: (1)geochemically experimental analysis techniques such as surface scanning of trace rare earth elements,laser-ablation U-Pb dating,clumped isotopes and non-traditional stable isotopes;and(2)high-temperature and high-pressure dissolution simulation techniques. The deepening of exploration realm and the progress of analytical techniques have significantly improved the understanding of the development and distribution of large-scale high-quality reservoirs in deeply buried fields of the three major basins,and built the foundation for major breakthroughs in oil field exploration in the future.

Key words: ultra-deeply buried strata, marine carbonate rock, large-scale high-quality reservoir, reservoir type, advancement in geological theory, technological advancement, Chinese typical basin

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