综合应用井间地震等多种资料确定精细地质模型

井间地震资料有着比地面地震资料更高的分辨率和更为丰富的波场信息。通过对吉林地区野外井间地震资料的处理，我们得到了精确的井间物性参数及高分辨率的地下构造剖面。从我们得到的结果可以看出，层析速度可以分辨出十米左右的速度层，而其主要的速度界面面与地面资料、ＶＳＰ资料及测井资料等具有很好的一致性。

The construction of a fine geological model by comprehensive application of crosshole seismic data and other data

Crosshole seismic data is ptovided with higher resolution and more plentiful information as compared with surface seismic data. After a series of processing operations,we have got precise crosshole physical parameters and high rcsolution seismic structure profiles. The results show that velocity layets of about ten metcrs can be distinguished from tomographic velocity image and the main velocity interfaces of the image coincide with those in surface seismic data,VSP data and well logging data,and the migration image of refiected crosshole seismic data can reach a resolution of thin layers with four meters. The resolving powet of different types of data were also discussed. By a comprehcnsive application of crosshole seismic data, surface 3D seismic data, VSP data, welll logging data and lithological geological column,we have successfully carried out the comparison of layers,and thc study of variations of lithology and thickness of thin layers and lateral changes of main reservoir layers,and the judgement of continuity of reservoir between well W1 and well W2,and finally, we constructed a fine lithological geological model.