【摘要】 气烟囱是由于天然气(流体)垂向运移在地震剖面上形成的含气异常现象,是气藏超压、构造低应力部位和泥页岩封隔层3种因素综合作用的结果。“多层非线性神经网络技术”是目前研究气烟囱比较有效的方法。气烟囱在油气勘探工作中有其独特的作用,可以有效地预测勘探方向、揭示天然气的运移路径、预测断层的封闭性,同时利用气烟囱还可以预测超压和海底构造稳定性,降低浅层气钻探风险。更多还原

【Abstract】 Gas chimney is one of seismic anomalies resulted from vertical fluid migration,which is the interactional outcome due to overpressure,low stress and shale barrier.Multi-layered nonlinear neural network is now an effective technology for gas chimney research.The gas chimney can be applied in hydrocarbon exploration in terms of ranking prospects,detecting migration pathways,distinguishing sealing or non-sealing faults,identifying potential over-pressured zone and drilling(shallow gas) hazards as well as assessing the sea floor stability for platform design and drilling.更多还原