新疆石油地质 ›› 2021, Vol. 42 ›› Issue (3): 346-352.doi: 10.7657/XJPG20210311

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珠江口盆地油气勘探历程与启示

张文昭(), 张厚和, 李春荣, 严寒, 李凡异, 郝婧   

  1. 中海油研究总院有限责任公司,北京 100028
  • 收稿日期:2021-01-05 修回日期:2021-01-19 出版日期:2021-06-01 发布日期:2021-05-27
  • 作者简介:张文昭(1988-),女,河南南阳人,工程师,硕士,石油地质,(Tel)010-84520479(E-mail) zhangwzh12@cnooc.com.cn
  • 基金资助:
    国家科技重大专项(2016ZX05016-006)

Petroleum Exploration History and Enlightenment in Pearl River Mouth Basin

ZHANG Wenzhao(), ZHANG Houhe, LI Chunrong, YAN Han, LI Fanyi, HAO Jing   

  1. Research Institute, CNOOC, Beijing 100028, China
  • Received:2021-01-05 Revised:2021-01-19 Online:2021-06-01 Published:2021-05-27

摘要:

珠江口盆地油气勘探经历40余年,综合考虑勘探策略及地质认识转变、勘探工作量、领域性突破、储量增长等因素,其勘探历程可划分为3个阶段:围绕隆起带大构造的早期探索阶段(1974—1984年)、围绕富烃凹陷中—浅层的背斜勘探阶段(1985—1999年)和围绕深水深层的油气并举复式勘探阶段(2000年至今)。勘探实践中探索出了多项创新性地质认识、理论和技术,如油气差异富集及复式聚集理论、多源成烃和复合输导的晚期成藏模式、低位体系域深水扇认识、“源-汇-聚”综合评价体系、近源供烃、联合输导成藏模式等,丰富和发展了油气勘探理论,引领了珠江口盆地油气勘探的持续突破。

关键词: 珠江口盆地, 勘探历程, 勘探启示, 地质认识, 成藏模式

Abstract:

Oil and gas exploration in the Pearl River Mouth basin has been going on more than 40 years. Considering the changes of exploration strategy and geological understanding, exploration workload, breakthrough and reserve growth, the exploration process can be divided into three stages: (1) Early exploration stage (1974-1984) aiming at large structures in the uplift belt; (2) Anticline exploration stage (1985-1999) focusing on middle and shallow layers in the hydrocarbon-rich sags; and (3) Composite exploration stage (since 2000) paying same attention to oil and gas, deep-water regions and deep layers. A number of innovative geological understandings, theories and technologies have been formed through exploration practices, such as differential hydrocarbon enrichment and composite accumulation theory, the late-stage hydrocarbon accumulation pattern with multi-source hydrocarbon generation and complex transformation, the recognition of deep-water fan in lowstand system tract, the comprehensive evaluation system of “source-migration-accumulation” and the reservoir forming pattern of “near-source hydrocarbon supply with multiple migration networks”. These understandings have enriched the oil and gas exploration theories, and led to continuous breakthroughs of oil and gas exploration in the Pearl River Mouth basin.

Key words: Pearl River Mouth basin, exploration history, exploration enlightenment, geological understanding, hydrocarbon accumulation model

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