【摘要】 预探井失利原因的统计和分析表明,对勘探目标的圈闭条件、储层条件、烃源与充注等成藏条件的认识不足以及工程技术的不适应是导致钻探失利的主要原因,其失利因素可分为地质风险和工程技术风险两大方面,其中地质风险是最基本的勘探风险,占97.2%,而圈闭落实和储层预测风险占67.0%,这充分体现了地震勘探在现代油气勘探中的重要地位,从而为不同地区针对不同勘探对象提出了当前地震勘探技术需求,为油气发现做好前期准备具有指导意义.更多还原

【Abstract】 In view of the statistical analysis of the recorded failure wildcats, the geological chance factors and technical effects are responsible for geological failure to drill in-field wildcats in proven trend or to drill new-filed wildcats in new play. The geological risk is the basic exploration risk, which is 97.2% of the total failed wildcats. The geological chance factors include the sealed closure, reservoir rock, mature hydrocarbon source rock and sufficient hydrocarbon charge. 67% of the failed wildcats resulted from the closure risk and reservoir risk shows the importance of the seismic technology in modern exploration. In order to prepare for the discovery of oil and gas, the qualifications for seismic technology are put forward to different exploration objects in different areas.更多还原