叠前叠后流体检测技术在南堡凹陷潜山中的应用研究

The applied research in Nanpu Sag buried hill with the fluid detection technology of prestack and post-stack

南堡凹陷潜山是油田近年来勘探开发、增储上产的重点区域,但其储层横向变化快、类型多、流体复杂的特征,为提高油气勘探成功率,开展了针对碳酸盐岩叠前、叠后流体检测的综合研究,形成一套实用性强的流体检测技术系列.在高保真的逆时偏移数据体和叠前CRP道集的基础上,运用叠前AVO分析、衰减梯度属性、低频能量属性以及多属性综合分析技术在南堡凹陷潜山开展流体检测,在此基础上,优选有利储层发育区,部署探井,取得较好的勘探效果,证实该技术系列的准确、可靠、实用性.

he Nanpu Sag buried hill is key area of oilfield in exploration and development and increasing reserves and production in recent years.But the reservoirs have the characteristics of quick changes in the lateral,variety of types and complex fluid.In order to improve the success rate of the oil and gas exploration,we carried out for the complex study of prestack and poststack fluid detection in carbonate rocks and have formed a set of practical fluid detection technology series.That,on the base of the high-fidelity inverse time migration seismic data and prestack CRP gather,we use the pre-stack AVO analysis,attenuation gradient Properties,the low frequency energy properties,as well as multi-attribute analysis techniques to predict fluid distribution.On this basis,we preferred favorable reservoir development area and deploy the exploratory wells.The better exploration results have confirmed the accuracy,reliability and practicality of this technical series.