中国石油勘探 ›› 2016, Vol. 21 ›› Issue (3): 14-23.

• 勘探管理 • 上一篇    下一篇

济阳坳陷精细勘探新成果与启示

曹忠祥1,张宇1,蔡攀1,李友强2,刘建磊1,董月昌1   

  1. 1中国石化胜利油田分公司油气勘探管理中心
    2中国石化胜利油田分公司勘探开发研究院
  • 出版日期:2016-05-15 发布日期:2016-05-15
  • 基金资助:
    国家科技重大专项“渤海湾盆地精细勘探关键技术”(2011ZX05006)。

New achievements and recognitions of fine exploration in Jiyang depression

Cao Zhongxiang1, Zhang Yu1, Cai Pan1, Li Youqiang2, Liu Jianlei1, Dong Yuechang1   

  1. 1 Oil and Gas Exploration Management Center, Sinopec Shengli Oilfield Company
    2 Exploration and Development Research Institute, Sinopec Shengli Oilfield Company
  • Online:2016-05-15 Published:2016-05-15

摘要: 济阳坳陷历经50多年的勘探,整体进入隐蔽油藏勘探阶段。“十二五”期间,面对日趋复杂的勘探对象,勘探工作者围绕高效勘探目标,客观分析资源现状,积极改进地震资料品质,厘清中浅层地质认识瓶颈问题,以基础认识创新引领老区新的突破,构建新的地质模型以挖掘成熟区带新的潜力。针对勘探瓶颈地区、盆缘地层油藏、新近系河道砂岩性油藏、深层区块等潜力方向,通过重新构建早期油气运聚模型、多级序地层不整合圈闭模型、河道砂岩油藏描述模型、复杂断裂带构造模型和陡坡砂砾岩评价模型进行精细勘探,发现了青南油田和三合村油田,取得了14个预探重大突破,落实了12个千万吨级规模经济储量阵地。“十二五”勘探实践表明,“成熟”探区不“成熟”,“经验”突围有“资源”,老区仍然蕴藏着丰富的油气资源,以创新为引领,精细研究,勇于探索,老区仍能大有作为。

关键词: 隐蔽油藏, 早期油气运聚, 多级序, 油藏描述, 地质模型, 逆时偏移, 济阳坳陷

Abstract: The Jiyang depression, being explored for over 50 years, has entered a stage of subtle reservoir exploration. During the 12th Five-Year Plan, exploration targets became even more complicated. To enhance efficiencies of explorations, new geologic models were built to tap potentials of mature zones, by assessing available resources, improving quality of seismic data and highlighting bottlenecks in geologic studies on shallow and mid-deep formations. In this way, new breakthroughs were achieved in existing oilfields through reinterpretation of available data. To explore areas with bottleneck challenges, marginal reservoirs, Neogene fluvial channel sandstone reservoirs, deep formations and other potential targets, new models for early oil and gas migration and accumulation, multilevel sequential uncomfortable traps, description of fluvial channel sandstone reservoirs, structure of complex faulting zones, and assessment of sandy conglomerates on steep slopes were established for fine exploration. In addition to the discovery of the Qingnan oilfield and the Sanhecun oilfield, 14 key breakthroughs were made in preliminary exploration. In total, 12 potential reservoirs with reserves of tens of millions of tons each were identified. Explorations during the 12th Five-Year Plan show that there are great potentials in highly explored areas, which can be efficiently through innovation.

Key words: reservoir description, subtle reservoir, early oil and gas migration and accumulation, multilevel sequential, geologic model, reverse-time migration, Jiyang depression