Seismic data acquisition in transition zone with simultaneous-source
Cao Mingqiang1, Chen Haolin1, Zu Shaohuan2, Mao Hejiang1, Yu Shaopeng1, Zhu Shuyun3
1. BGP Offshore, BGP Inc., CNPC, Tianjin 300280, China;
2. China University of Petroleum(Beijing), Beijing 102249, China;
3. Research & Development Center, BGP Inc., CNPC, Zhuozhou, Hebei 072750, China
Abstract:With focus on wide-azimuth,broadband,and high-density acquisition,simultaneous-source acquisition in marine seismic has become a hot spot. Simultaneous-source streamers are quite common. But simultaneous-source acquisition in transition zones (TZ) is a great challenge due to complex surface conditions. In this paper,we discuss some aspects such as source interval and dithering scheme for simultaneous-source acquisition in TZ. Based on analysis of the tests,we demonstrate that periodically varying codes are good for deblending simultaneous-source data. Comparing four simultaneous-source surveys,we find that the minimum distance between two shooting vessels should be greater than 2 km in order to suppress crosstalk.
曹明强, 陈浩林, 祖绍环, 毛贺江, 于少鹏, 祝树云. 过渡带同步震源资料采集方法探讨[J]. 石油地球物理勘探, 2016, 51(s1): 1-5.
Cao Mingqiang, Chen Haolin, Zu Shaohuan, Mao Hejiang, Yu Shaopeng, Zhu Shuyun. Seismic data acquisition in transition zone with simultaneous-source. OGP, 2016, 51(s1): 1-5.
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