CAJ | 학술논문

针对薄层及多波联合反演两大研究热点，以薄层频率域反、透射系数为基础，建立了两类薄煤层模型--强阻抗和低阻抗差异薄层，并对其分别进行单纯P波、S波及PP波与PS波联合反演。利用反演结果及误差分析，对比了单种波反演和联合反演的效果，从模型反演数据证实了对于薄层而言，PP波和PS波联合反演比P波或者S波单纯反演具有更好的效果。
침대박층급다파연합반연량대연구열점，이박층빈솔역반、투사계수위기출，건립료량류박매층모형--강조항화저조항차이박층，병대기분별진행단순P파、S파급PP파여PS파연합반연。이용반연결과급오차분석，대비료단충파반연화연합반연적효과，종모형반연수거증실료대우박층이언，PP파화PS파연합반연비P파혹자S파단순반연구유경호적효과。
Thin bed and multi-wave joint inversion are two major research focuses in fossil energy exploration. In the paper, two types of thin-bed coal models including strong impedance difference (model I ) and weak impedance difference (model II) have been built. These researches were based on reflection and transmission coefficient of thin layer in frequency domain. Then elastic parameters of the models could be respectively predicted by using P-wave, S-wave inversion and PP&PS joint inversion. Model error analysis and inversion result were used to evaluate the effect of inversion methods, have theoretically confirmed that joint inversion of PP&PS is better for thin bed model than single inversion of P-wave or S-wave.