Previous Articles     Next Articles

Key Parameters of Seismic Acquisition for Surface Pre-stack Imaging and Reservoir Prediction

Wang Xishuang1, Zhao Bangliu1, Dong Shitai2, Zhang Yan2, Yi Weiqi1, Gao Yinbo2   

  1. PetroChina Exploration and Production Company, Beijing 100007; 2 PetroChina Exploration and Development Research Institute, Beijing 100083
  • Online:2014-04-15 Published:2014-04-15

Abstract: Field seismic acquisition is the source of seismic work. The seismic acquisition observation system holds the key to high-quality seismic data and is related to exploration cost. With seismic exploration continually extending to development, seismic data are required to meet the demand of technological application for pre-stack imaging, reservoir prediction and oil and gas inspection so that the new targets can be set to optimize the acquisition plan. This article elaborates the technological conception and method for seismic acquisition design of surface pre-stack imaging and reservoir prediction. Based on the underground geological characteristics, surface absorption and attenuation as well as analysis of petro-physical properties, the geophysical parameters are acquired from the target zone to focus on the concrete seismic exploration task and geological target. Following the technological demand for pre-stack imaging and reservoir prediction, the key parameters are selected and optimized, such as the surface elements of the observation system, times of coverage, density of shots and traces, and line spacing. The design of seismic exploration and acquisition is also optimized to provide more effective basic data for pre-stack imaging and reservoir prediction.