【摘要】 鄂尔多斯盆地上古生界盒8段气藏属典型的低孔低渗砂岩岩性气藏,储层段物性及含气性在横向上存在着严重的非均质性,常规叠后技术很难对其进行准确的预测。针对这一难点问题,在叠前处理资料的基础上,利用地震道集、近中远叠加剖面、叠前角度域烃类检测、弹性参数反演等叠前属性技术,提出了一套对苏里格气田盒8段储层进行含气性预测的有效方法并在实践中取得了良好效果。更多还原

【Abstract】 Gas reservoir in the 8 member of Shihezi Formation in upper Paleozoic in Ordos basin is a typical lithologic reservoir with low-porosity and low-permeability.The physical property of gas reservoir and gas-bearing quality is horizontally anisotropic.It is difficult to predict the sand reservoir distribution by means of normal post-stack technique.Based on pre-stack data,we used seismic trace gather,close-medium-far superimposed section,pre-stack angle domain hydrocarbon detection and elastic parameter inversion to predict the gas-bearing quality in the 8 Member of Shihezi Formation,Sulige gas field.The practical test has proved that it is effective.更多还原