北塘凹陷塘沽油田勘探实践

Petroleum exploration of Tanggu oil field in Beitang sag of Huanghua depression, Tianjin, China

北塘凹陷位于黄骅坳陷北区,油气勘探难度较大,从1964年开始勘探,长期未获重大突破,素有“贫油凹陷”之称。近十年,从盆地分析入手,整体解剖,选择塘沽构造为突破口,经过艰苦工作,终于发现了一个 5000 × 104t资源规模的中型油田。回顾油田勘探历程并总结30多年的经验和教训,对于此类地区勘探具有借鉴意义。认为塘沽油田勘探成功的主要经验在于强化地震勘探、加强综合地质研究以加深对地质规律的认识、广泛应用新技术、注重提高工艺水平。图3参3（邓荣敬摘）

Beitang sag with difficult petroleum exploration is located in the north region of Huanghua depression, from which, since 1964 no big breakthrough has been taken place in petroleum exploration. In the past 10 years, a lot of hard work has been done in terms of basin analysis, regionally integral dissection and choosing the Tanggu structure as the breakthrough point of exploration, as a good result, a midium-sized oil field with OOIP of 50 million tons was finally discovered. Reviewing the petroleum exploration history of Tanggu oil field, and summarizing its exploration achievements within the latest 30 years, the paper points out that the great success of this oil field's exploration is mainly a result of more concerning on acquisition and processing of seismic data, deepening geology study, wide implementation of newly developed technology and improvement of processing technology.