有效保存单元评价对沉湖地区海相油气勘探的启示

The Revelation of Effective Preservation Unit Evaluation to the Marine Hydrocarbon Exploration in Chenhu

沉湖地区是江汉平原海相油气勘探突破的现实地区 ,但至今仍未获得工业油气流 ,关键原因之一在于油气保存条件不理想。通过应用有效保存单元(整体封闭系统)划分及评价方法 ,指出红丰～牌洲、胡场～珂理两个系统分别是勘探早期、晚期油气藏的最有利及有利地区 ,对该区下一步勘探部署具有积极的指导意义。

Chenhu is the target area of marine hydrocarbon exploration breakthrough in Jianghan Plain and there hasn't been commercial oil and gas flow at present. One of the key factors is the unfavorable hydrocarbon preservation condition. The paper presents that Hongfong-Paizhou system and Huchang-Keli system are the most favorable areas for exploring the early and the late formed reservoirs respectively using the effective preservation unit (complete closed system) division and evaluation methods. It is very important for further exploration in the area.