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在惠民凹陷，油气富集，但火成岩广泛发育，给地震勘探工作带来很大困难。本文从火成岩的标定识别、平面构造描述、裂隙发育带预测、油气检测等出发，应用快速积分振幅法、三瞬处理、层拉平切片、时颇分析等技术和钻井、测井、试油资料研究了该区含油火成岩的地震响应特征。当火成岩含油气盾，较致密火成岩瞬时报幅变弱、瞬时频率升高；依此对该区火成岩体进行综合评价，提供探井，均取得了很好的钻探效果。另外，用时频分析技术，提取火成岩和有效波主频，根据两者主频差异，再用滤波方法压制火成岩信息，可突出有效反射波。
In the Huimin depression, oil and gas are abundant, but the igneous rocks are widely developed, which brings great difficulties to the seismic exploration work. In this paper, based on the calibration and identification of igneous rocks, the description of plane structure, the prediction of fracture development zone and the detection of oil and gas, the authors applied the technologies of rapid integral amplitude method, three-instantaneous treatment, The seismic response characteristics of oil-bearing igneous rocks in this area. When the igneous rocks contain oil-gas shields, the instantaneous amplitude of compacted igneous rocks weakens and their instantaneous frequency increases. Based on this, the comprehensive evaluation of igneous rocks in this area provides a good drilling result. In addition, using time-frequency analysis, the igneous rock and the effective frequency are extracted, and according to the difference of the two frequencies, the filtering method is used to suppress the igneous information to highlight the effective reflected wave.