特种油气藏 ›› 2022, Vol. 29 ›› Issue (6): 73-82.DOI: 10.3969/j.issn.1006-6535.2022.06.009

• 地质勘探 • 上一篇    下一篇

辽河坳陷成熟探区油气深化勘探认识及实践

李晓光, 陈昌, 韩宏伟   

  1. 中国石油辽河油田分公司,辽宁 盘锦 124010
  • 收稿日期:2022-06-08 修回日期:2022-11-25 出版日期:2022-12-25 发布日期:2023-01-10
  • 作者简介:李晓光(1966—),男,企业首席专家,教授级高级工程师,1989年毕业于石油大学(华东)石油地质专业,2008年毕业于中国石油大学(北京)地质资源与地质工程专业,获博士学位,现从事油气勘探部署工作。
  • 基金资助:
    中国石油辽河油田分公司重大科技专项“辽河坳陷深层天然气成藏机理与勘探战略研究”(2021KJZX-02)、“辽河坳陷多元潜山内幕勘探关键技术研究”(2022KJZX-02);中国石油重大科技专项“辽河油田千万吨稳产关键技术研究与应用”子课题“辽河探区可持续规模增储勘探关键技术研究”(2017E-1601)

Understanding and Practice of Oil and Gas Deepening Exploration in Mature Exploration Area of Liaohe Depression

Li Xiaoguang, Chen Chang, Han Hongwei   

  1. PetroChina Liaohe Oilfield Company, Panjin, Liaoning 124010, China
  • Received:2022-06-08 Revised:2022-11-25 Online:2022-12-25 Published:2023-01-10

摘要: 针对传统油气勘探领域难以实现油气规模发现、传统勘探思路难以适应非常规油气新目标等问题,运用深化地质认识及重建成藏模式的思路,开展成熟探区勘探研究与实践。辽河坳陷已然进入勘探高成熟阶段,成熟探区的深化勘探不能仅仅局限于在地球物理技术进步、钻探水平的提高和油气层改造技术等领域,更应该体现在对地下地质条件客观存在的精准把握和创新认识。在西部凹陷清水洼陷创新成藏模式,新发现岩性油气藏石油储量2 800×104t;在雷家地区创建“双要素”新评价模型,实现了非常规油气目标评价由面到体的转变;在东部凹陷沙三段重建勘探单元,发现新的勘探单元并部署实施X47井获高产气流。辽河坳陷成熟探区油气勘探实现多项突破,并对同类型成熟探区的勘探提供借鉴。

关键词: 成熟探区, 深化勘探, 成藏模式, 评价模型, 勘探单元, 辽河坳陷

Abstract: The Liaohe Depression has already entered the high maturity stage of exploration. The deepening exploration in mature exploration area cannot be limited to the scope of geophysical technology progress, drilling level improvement and revolution of oil and gas reservior stimulation technology, but should be reflected in the accurate grasping and innovative understanding of the objective existence of subsurface geological conditions. To address the problems that the conventional oil and gas exploration is difficult to achieve oil and gas discovery on a large scale and conventional exploration ideas are difficult to adapt to new unconventional oil and gas targets, the ideas of deepening geological understanding and reconstructing reservoir formation model were applied to innovate reservoir accumulation model in the Qingshui Depression of Western Sag to newly discover oil reserves of 2 800×104t in rocky oil and gas reservoirs; a new "two-element“ evaluation model was created in Leijia area, which realized the surface-to-body transformation of unconventional oil and gas target evaluation; the exploration unit was reconstructed in the Member 3, Shahejie Formation of the Eastern Sag, and a new exploration unit was discovered and the Well X47 was deployed and implemented to obtain high production gas flow. A number of achievements were made during the exploration of oil and gas in mature exploration area of Liaohe Depression, which provided ideas and methodological reference for the exploration of similar type of mature area.

Key words: mature exploration area, deepening exploration, reservoir accumulation model, evaluation model, exploration unit, Liaohe Depression

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