【摘要】 川西深层须家河组油气成藏地质条件十分复杂,气藏具有超深、超低孔渗、超高压、超致密等特征,为典型的裂缝性气藏,裂缝预测是该气藏地震勘探面临的最大难题。近年来,以宽方位、大偏移、三维三分量(3D3C)地震资料为主,多学科协同,充分利用三维三分量的纵波信息和转换波信息,从地史成因裂缝预测、P波地震属性裂缝预测、P波方位各向异性检测、横波分裂裂缝检测等多方面开展研究工作,较好解决了须家河组超致密储层裂缝预测问题。更多还原

【Abstract】 For the deep Xujiahe Formation in western Sichuan Basin,its reservoir-forming geological conditions are very complicated.In addition,it is an extra-deep,extra-low porosity and permeability,extra-high pressure,extra tight and a typical fractured gas reservoir.So,fracture prediction becomes the most difficult problem of seismic exploration in this reservoir.Recently,with the wide-azimuth,large-deviation and three-dimensional and three component(3D3C) seismic data as the soul,some researches,which the 3D3C P-wave and converted-wave data was made full use,have been carried out for the reservoir prediction caused by geological history and P-wave seismic attribute and the detection of both P-wave azimuth anisotropy and S-wave splitting fracture by means of multidisciplinary coordination.更多还原