石油学报 ›› 2012, Vol. 33 ›› Issue (S1): 53-62.DOI: 10.7623/syxb2012S1007

• 地质勘探 • 上一篇    下一篇

中国东部老区第三系油气勘探思考与实践——以济阳坳陷为例

张善文   

  1. 中国石油化工股份有限公司胜利油田分公司 山东东营 257000
  • 收稿日期:2011-12-26 修回日期:2012-02-21 出版日期:2012-08-25 发布日期:2012-08-30
  • 通讯作者: 张善文
  • 作者简介:张善文,男,1955年9月生,1982年毕业于华东石油学院,2003年获中国科学院广州地球化学研究所博士学位,现为中国石油化工股份有限公司胜利油田分公司副总经理、总地质师、教授级高级工程师,长期从事石油地质综合研究和勘探工作。
  • 基金资助:

    国家重大科技专项“渤海湾盆地精细勘探关键技术”(2008ZX05006)资助。

Thinking and practice of Tertiary oil and gas exploration of maturing region in eastern China: a case study of Jiyang depression

ZHANG Shanwen   

  • Received:2011-12-26 Revised:2012-02-21 Online:2012-08-25 Published:2012-08-30

摘要:

自2002年以来,针对济阳坳陷勘探现实,从陆相断陷盆地独特的石油地质条件分析入手,坚定隐蔽油气藏可以成为主要储量接替阵地的基本判断,以油气成藏理论和勘探关键技术为主要内容开展攻关,深化断陷盆地构造、沉积、成藏规律3项重点研究,在咸化湖泊环境烃源岩的高效生排烃机制、断陷湖盆缓坡滨浅湖滩坝砂体成因成藏机制、断陷盆地油藏分布连续性及有序性特征等方面取得创新认识。大面积推广应用针对复杂地质目标的高精度地震勘探技术,研发并形成了超高温深层射孔与压裂技术,拓宽了深层油气藏勘探开发空间。突出风险勘探和预探,新领域不断取得突破,连续实现三级(探明、控制、预测)储量年均超过亿吨,为胜利油田原油稳产作出了贡献。

关键词: 隐蔽油气藏, 咸化湖泊, 烃源岩, 成藏有序性, 高精度地震, 滩坝砂, 砂砾岩体

Abstract:

Based on actual exploration conditions of Jiyang depression, we analyze unique petroleum geological conditions in the continental rift basin, follow the basic judgment that subtle reservoirs can become the main reserve replacement position, take oil and gas accumulation theory and key exploration technologies as main contents to tackle the exploration problem, and deepen the researches of the rift basin structure, deposition and accumulation law. Consequently, some innovative understandings have been obtained since 2002, such as the efficient hydrocarbon generation and expulsion mechanism of hydrocarbon source rock in the brackish lake environment, the origin and reservoir formation mechanism of gentle slope shore-shallow lake-beach-dam sand body in the rift lake basin, continuity and orderliness of reservoir distribution in the rift basin. Besides, China promotes excessive application of high-precision seismic exploration technology for complex geological targets in this area, develops and forms ultra-high temperature deep perforating and fracturing technology, which broadens exploration and development of deep hydrocarbon reservoir. Risk exploration and pre-exploration are highlighted. Breakthroughs are made continuously in new fields. Annual average three-level (proven, controlled and predicted) reserves have exceeded one hundred million tons for many consecutive years and all of these make contributions to stable annual oil yield in Shengli Oilfield.

Key words: subtle reservoir, brackish lake, hydrocarbon source rock, accumulation orderliness, high-precision seismics, beach dam sand, glutenite body