准北春晖油田油气勘探快速突破的三点启示

Exploration Breakthrough Inspirations of Chunhui Oilfield in the Northern Junggar Basin

摘要: 2011年，中石化胜利油田分公司在准噶尔盆地北缘哈山地区勘探发现了春晖油田。哈山1地区位于乌夏断裂带上盘哈山前缘，该区石炭系、二叠系、侏罗系和白垩系都见到了较好的油气显示或工业油流，说明其具备良好的油气成藏条件和勘探前景。经过2002年以来的勘探实践，特别是2010年以来在三维地震 + 叠前偏移处理、钻探预探井8口基础上，取得了哈山浅层区块的勘探突破。通过研究，玛湖凹陷以及哈山逆冲带下的二叠系烃源岩都能作为哈浅1地区的油源，而哈浅1井侏罗系原油主要来源于二叠系风城组烃源岩；二叠系烃源岩早期生成的油气先通过断裂运移出来在附近的二叠系、三叠系储层中聚集成藏，后期由于构造作用导致油气沿断裂和不整合面向上运移，在构造高部位的侏罗系和白垩系的有利圈闭中聚集成藏，浅层油藏遭受次生破坏和生物降解。哈山区块开发主体属于浅层超稠油，经过蒸汽吞吐获得了工业油流，已开始钻探水平井，推广应用HDNS技术。研究表明，春晖油田有资源、有手段，前途光明。

Abstract: Shengli Oil Company found Chunhui Oilfield in the Northern Junggar Basin in 2011. By exploration practice on thick accumulation and thin giving since 2002, especially based on 3-D seismic + prestack migration, drilled 8 wild- cat, achieved exploration breakthrough at shallow layer of halaalate mountain block. Its development main body is shallow super heavy oil, where commercial oil flow has been obtained by steam soaking, already drilled horizontal well to popularization and application HDNS technology. Practice shows that Chunhui Oilfield has broad prospect for ex-ploration and development.