中国前新生代残留盆地油气勘探难点分析及对策

Analysis of difficulties in gas-petroleum prospecting in Chinese pre-cenozoic relic basin and the corresponding solutions

中国50年油气勘探的历程主要在新生代陆相生油的指导思想下,发现了大庆、胜利等大油田,取得了辉煌的成就,形成了一套针对新生代陆相断陷湖盆油气勘探的理论与方法.时至今日,能源的增长已远远跟不上经济的高速发展,提出“油气二次创业”,前新生代海相残留盆地就是主战场.残留盆地的勘探难点集中在三方面,一是勘探思路局限,二是勘探程度低,三是勘探技术的限制;根据这些难点提出5项对策来解决残留盆地的勘探问题.

Research on relic basin is a world-wide focus problem. Only recently, this research is carried out in China. Under the guidance of the theory of petroleum generation from Cenozoic terrestrial strata, lots of great oil fields, e.g., Daqing, Shengli, were found. While such great success is achieved, a series of mature theory and approaches for gas-petroleum prospecting Cenozoic fault-depressed basin come into being. Nowadays, the growth of energy producing is far behind the need of the economic boom. In such case, “The second round of oil & gas exploration” is raised up, and the pre-Cenozoic relic basin becomes the principle battlefield. The difficulties in prospecting relic basin exist as: 1)bound prospecting guidance; 2)low prospecting grade; 3)limited by the level of prospecting. Aiming at these difficulties, we present 5 solutions to deal with the prospecting problem of relic basin.