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| Special geometry design and application for shipping area in large-scale harbour |
| Li Xiao-dong1, Zhu Wen-liang2, Chen Hao-lin1, Zhai Tong-li2, Ye Yuan-quan1, Liu Jun1, Zhang Hong-jun1, Niu Jin-fu1 |
1. Off-shore Exploration Business Department,BGP Inc.of CNPC,Dagang,Tianjin City,300280,China;
2. Dagang Oilfield Branch Company of Petrochina,Dagang,Tianjin City,300280,China |
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Abstract The surface conditions in the shipping areas of large-scale harbour are complex,conducting 3D acquisition in those areas will face many challenges,such as serious deficiencies for shot points and receiver points,incomplete target data acquired,severe environment noise,weak effective reflection energy for the middle and deep layers and so on.This paper attempts to conduct special geometry design in those areas and the basic idea is as below: According to the design scheme for swath geometry,considering the features of surface and terrain for the harbor,navigation channel,container storage area and bulk logistics,and by using the high accuracy satellite pictures and field survey results,the targeted solutions,such as reasonable splicing for local land and water areas,off-line survey,multi shooting and receiving at the same physical point,increase of spread density and so on,were utilized,and then a set of special geometry design method for harbor areas was summarized.The Application of the method in the geometry design for acquisition of seismic data in BH harbor area proved its better effectiveness.
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Received: 21 May 2010
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2011, Vol. 46 
