成熟探区勘探单元划分及其意义——以东营凹陷为例

基金项目: 中国石化油田部勘探先导项目(G5800-08-ZS-YTB025)

Division of exploration units and its significance in mature exploration region：a case study in Dongying Sag

摘要: 在高勘探程度地区难于以构造单元进行精细勘探。结合勘探生产实际,提出了成熟探区的"勘探单元"基本概念及划分方法,分析了如何将其作为地质研究、探井部署以及勘探投入—产出分析的基础单元来指导勘探工作。并以东营凹陷北部陡坡带盐家—永安地区Es^4(上)—Es^3(下)近岸水下扇岩性油藏勘探为例,利用"勘探单元"进行地质条件与勘探能力的关系和矛盾分析,明确了该区存在的关键问题,有效地指导了勘探,提高了勘探效益。
- 隐蔽油藏 /
- 勘探单元 /
- 精细勘探 /
- 东营凹陷 /
- 渤海湾盆地
Abstract: It is very difficult to explore with structural unit in mature exploration regions.According to exploration and production practices,the concept and the division method of exploration unit in mature region were proposed,and were used to guide geologic study,well arrangement and input-output ana-lysis.In Yanjia-Yong'an region of the northern steep slope of the Dongying Sag,a case study was carried out in the nearshore subaqueous fan lithologic reservoir from the upper Es⁴ to the lower Es³.The relationship between geologic conditions and exploration capabilities was analyzed with "exploration unit".The key problems were pointed out so as to guide exploration and improve efficiency.
- subtle reservoir /
- exploration unit /
- fine exploration /
- Dongying Sag /
- Bohai Bay Basin

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