�����ܵ��ʺ��꾮�����������ޣ���̽��ʱ���ھ��ۿ��������󣬶Բ⾮Լ�����ݵĽ��������ܴ��Ӱ�졣Ϊ��������Ӱ�죬�õ���ӳ�ز���ʵ���ԵIJ⾮���ߣ��������þ�������������ع��ݲ����ܶȡ��Შ���ߣ��÷���ͻ���˳������ʯ��������ܣ���һ��ͳ��ѧ�ĽǶ�����߷��ݵľ��ȡ�S-W ������ S5 ���� P ������ P3 ������Ч�����������ø÷����ع������������ϳɼ�¼ȡ�õ�Ч���Ϻá��� P3 ���У��ع����ݲ��ٶ����ܶ���ȡ���ݲ��迹��������õĺϳɼ�¼����ԭʼ�����¼����������ɷ��ع��� 0. 59 ��ߵ� 0. 84��

Due to the restrictions of geological and drilling technology conditions��the phenomenon of borehole collapse often exists in wildcat��which has a great impact on the results of logging constrained inversion�� In order to elminate the effect of the borehole collapse and obtain well logging curve that reflect the true properties of the forma- tion��the method of cluster analysis is applied to reconstruct longitudinal waves��density and shear waves in this pa- per��and this method is not limited to the conventional method of rock physics framework��but to improve the accu- racy of inversion in a statistical perspective�� The application effect of Well S5 in S-W work area and Well P3 in P work area shows that the effect of synthetic seismogram made by reconstructed curve is good�� In the Well P3��the relevance between the original seismic traces and the synthetic track which is obtained by the impedance curve calculated by the reconstructed P- wave velocity and density��is increased from non- reconstructed 0. 59 to 0. 84��