井间地震数据处理方法--以大庆某采油厂井间地震勘探为例

Cross-well seismic data processing technique——a case study for cross-well seismic exploration in an oil production plant in Daqing Oilfield

本文以大庆油田A区井间地震资料为实例,介绍了井间地震数据采集的方法,并对资料处理的难点及相应的处理方法(互相关叠加、波场分离、直达波层析成像和反射波成像)进行了研究,总结出了一套切实可行的处理方法。通过对三口井的井间地震剖面首尾相接,可看出剖面接缝并不明显,同相轴连续性很好,信噪比和分辨率较高,说明该处理方法是可行的。

Based on the seismic data in A Block in Daqing Oilfield,the cross-well seismic data acquisition method is introduced in this paper.With the study to the difficulties of data processing and the corresponding processing methods,such as cross-correlation stack,wave field separation,direct wave tomography and reflection image,a set of practical processing methods are summarized.After merging the cross-well seismic sections of three wells,it can be found that the joints of the cross-well seismic section are not obvious and the seismic events are continuous,showed the relatively higher resolution and signal to noise ratio and demonstrated the feasibility of the processing method.