兴隆台古潜山带勘探实践及地质意义  

Exploration practice and geologic implication in Xinglongtai buried hill zone

作　　者：李晓光[1] 刘宝鸿[1] 余成[1] 

机构地区：[1]中油辽河油田公司,辽宁盘锦124010

出　　处：《特种油气藏》2007年第2期6-9,共4页Special Oil & Gas Reservoirs

摘　　要：兴隆台古潜山油藏是辽河油田最早发现的古潜山油藏。长期以来,由于地质条件复杂性以及认识上的局限性,限制了古潜山带的勘探进程。近年来以创新的理念为指导,开展了4000m以下深层古潜山、巨厚隔层下古潜山以及古潜山深部的勘探,并取得了认识上的突破。突破了以往变质岩古潜山风化壳含油的观念,取得了古潜山内幕深部可以成藏的认识;古潜山储层受埋深成岩作用影响较小,深层古潜山仍具有较好的储集性能;供油窗口的存在是古潜山成藏的关键因素,巨厚隔层下古潜山可以成藏,建立了古潜山内幕裂缝性油藏成藏模式。此次研究对于拓展勘探领域和空间,丰富石油地质理论具有重要意义。Xinglongtai buried hill reservoir is discovered the earliest among buried hill reservoirs in Liaohe oilfield. For a long time, geologic complexity and understanding limit have restrained exploration in buried hills. This paper expatiates the exploration process in recent years in buried hills below 4 000 m, under thick barriers and inside of the deep buried hills with innovative thought and deep understanding of geology. These breakthroughs have been made:the old idea of oil is contained in the weathering crust of metamorphic rock buried hill has been broken through, it is now known that there can be oil reservoirs deep inside buried hills; buried hill reservoirs were less affected by burial depth and diagenesis, deep buried hills still have good reservoir property; the existence of oil supply window was the key of forming buried hill reservoirs. The knowledge of there might have formed reservoirs below thick barriers has helped establish the forming model of inner buried hill fractured reservoirs, and has important implication to expanding exploration domain and enriching petroleum geology.

关 键 词：潜山油藏 勘探实践 成藏认识 兴隆台油田 

分 类 号：TE122.2[石油与天然气工程—油气勘探]