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文安斜坡位于渤海湾盆地冀中坳陷霸县凹陷东部斜坡的中段,从该区域已有油气成藏研究来看,构造油气藏、岩性油气藏、岩性-构造油气藏和断块油气藏等各种类型的隐蔽油藏在该区均有发育。地震反演对储层砂体在空间横向上的分布有很好的预测作用,可作为发现隐蔽油气藏的有效手段,井约束下的波阻抗反演在岩石物性差异较大的地区具有较好的应用效果。对该地区通过约束稀疏脉冲反演(CSSI)研究进行储层预测,对该工区内隐蔽油气藏的发现有重要的指导意义。
The Wen’an slope is located in the middle of the eastern slope of the Baxian Sag in the Jizhong Depression in the Bohai Bay Basin. According to the existing studies on hydrocarbon accumulation in this area, the structural reservoirs, lithologic reservoirs, lithologic-structural reservoirs and fault block reservoirs Various types of subtle reservoirs have developed in this area. The seismic inversion can predict the distribution of reservoir sand in the horizontal direction and can be used as an effective method to find subtle reservoirs. The inversion of wave impedance under well constraints is better in areas with large differences in petrophysical properties The application effect. The prediction of reservoirs in this area through constrained sparse pulse inversion (CSSI) study has important guiding significance for the discovery of subtle reservoirs in this area.