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南海北部西区琼东南盆地自2010年开展深水区油气资源勘探至今,已完成了LS33-1-1井等5口井的钻探任务,揭开了南海北部深水勘探的新篇章。与以往浅水区(0~500m水深)取得的勘探成果和认识相比,深水区的油气资源勘探面临着新的问题和挑战,其中最为基础的问题之一就是深水区地层的划分与对比。由于此前采集的深水区地震资料品质不高,陵水凹陷北部陆坡区存在地震反射的模糊带,影响了由浅水区向深水区的引层解释,因此高精度的生物地层研究在深水区地层划分对比工作中扮演了更为重要的角色。
Since the exploration of oil and gas resources in the deepwater area in Qiongdongnan Basin in the western part of the northern South China Sea, drilling of 5 wells, such as the LS33-1-1 well, has been completed and a new chapter in deepwater exploration in the northern South China Sea has been opened. Compared with the exploration achievements and understandings made in the shallow water area (0 ~ 500m water depth) in the past, exploration of oil and gas resources in the deep water area faces new problems and challenges. One of the most fundamental problems is the division and comparison of strata in the deep water area. Due to the low quality of the seismic data collected in the deep water area, there are seismic reflection blur bands in the northern slope area of the Lingshui Depression, which have affected the lead interpretation from the shallow water area to the deep water area. Therefore, the high-precision bio-stratigraphic research Comparative work has played a more important role.