CAJ | 학술논문

煤田浅层地震勘探中，下伏地层与上覆地层的速度差异大，野外数据采集中容易形成多次折射波。多次折射波是单炮记录中的主要干扰波之一，严重干扰目的层有效反射波，且远偏道集速度相近难以通过后期处理去除，影响了地震资料的品质。为了较好地压制多次折射波，采用一种新的组合激发方式———立体组合激发方式，用于提高单炮记录的品质。通过试验，效果较好。
매전천층지진감탐중，하복지층여상복지층적속도차이대，야외수거채집중용역형성다차절사파。다차절사파시단포기록중적주요간우파지일，엄중간우목적층유효반사파，차원편도집속도상근난이통과후기처리거제，영향료지진자료적품질。위료교호지압제다차절사파，채용일충신적조합격발방식———입체조합격발방식，용우제고단포기록적품질。통과시험，효과교호。
In shallow layer coalfield exploration , multiple refraction wave easily form in field data collection because large velocity difference between lower layer and upper layer .Multiple refraction wave is one of main disturbance waves in single shot record and seri -ously disturbs effective refraction wave of goal layer , and velocities of far partial gathers were similar and difficulty be excluded by af-ter-treatment, which influenced quality of seismic information .In order to better suppress multiple refraction wave , applying a new combined excitation manner-stereoscopic excitation to improving single shot record quality .Field test showed the effect was good .