西南石油大学学报(自然科学版)

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Situation and Prospects of Offshore Seismic Survey Geometry

Li Xin1, Yin Cheng2 , Ge Zijian3, Zhang Peng1, Yang Kai1   

  1. 1. Geophysical Department,China Oilfield Services Limited,Tanggu,Tianjin 300451,China
    2. School of Geoscience and Technology,Southwest Petroleum University,Chengdu,Sichuan 610500,China
    3. State Key Laboratory of Petroleum Resource and Prospecting,China University of Petroleum(Beijing),Changping,Beijing 102249,China
  • Online:2014-10-01 Published:2014-10-01

Abstract:

With the increasing decline of onshore oil exploration potentiality,the key trend of petroleum industry is focused on
marine oil exploration. At present,China´s marine oil exploration is mainly spread out at shallow water,and further geophysical
exploration is also being devoted in deep water ocean. In order to meet the demand of geological structure imaging in deep ocean
area and satisfy the need of reservoir evaluation,searching for favorable exploration target and improving explorative success
rate in this area,it is necessary to enhance the study of survey evaluation and design of marine seismic acquisition. During recent
two decades,a series of marine streamer survey techniques,such as NAZ,MAZ,WAZ,RAZ and FAZ appeared gradually. In
order to analyze and summarize the merit and demerit of particular case,we take some typical associated acquisition geometries
and acquisition patterns as example,and illustrate and describe the characteristic of each one in this paper. Furthermore,to
prospect the development of marine streamer survey evaluation and design for multi-vessel,WAZ,we hope it to be further
developed in the future.

Key words: offshore seismic survey, geometry, narrow-azimuth, multi-azimuth, wide-azimuth, rich-azimuth, full-azimuth