The characteristics of interference waves from powered machine in oilfield and their geophone array suppression
Xia Jian-jun1,2, Tang Dong-lei2
1. School of Ocean and Earth Science, Tongji University, Shanghai City, 200092, china;
2. BGP Inc. of CNPC, Zhuozhou City, Hebei Province, 072751, China
Abstract:Various densely distributed powered machines in an oilfield can generate the wide-band interference noises and such noises are then transmitted around,as a result the signal to noise ratio of raw seismic data in the area is seriously affected.Based on the propagation characteristics of the noise from the powered machines in oilfield,the noise's absorption attenuation factors with space and time were considered,and the geophone array response relationship with all the powered machines on (here the multi-source interference sources ) were established in this paper. The noise suppression ability of the several geophone array combinations,such as linear combination,square combination and circular combination were analyzed in the multi-source interference environment,so that the favorite geophone array parameters were designed. The array response characteristics acquired above match the field ones and it is proved that the geophone array response calculation and the array parameter design method are feasible and practical.
夏建军, 唐东磊. 油田区动力干扰波特征及其组合检波压制[J]. 石油地球物理勘探, 2010, 45(5): 625-632.
Xia Jian-jun, Tang Dong-lei. The characteristics of interference waves from powered machine in oilfield and their geophone array suppression. OGP, 2010, 45(5): 625-632.