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地震勘探中,施工因素的选择直接关系到地震采集资料的品质好坏,合理的施工因素可以提升地震资料的单炮能量、频率、信噪比、分辨率最终可使地层的信息能够准确地表现在地震剖面上,为后续的处理和解释提供更有利的依据。确立地震工程采集以后,在对工程地震地质条件认识以后就需要确立最佳的激发和接收因素,如最佳的激发井深深度、合理激发药量。本文主要以SY断陷二维地震采集工程为例,以理论作为分析基础在重点选择试验点位置的基础上,分析不同的激发和接收参数对地震单炮品质的影响程度,以最佳的地震资料的施工因素作为原则。
In seismic exploration, the selection of construction factors is directly related to the quality of the seismic acquisition data, and the reasonable construction factors can enhance the single shot energy, frequency, signal-to-noise ratio and resolution of the seismic data so that the formation information can be accurately expressed in Seismic profile, for the follow-up to provide a more favorable basis for the treatment and interpretation. After the acquisition of seismic engineering is established, it is necessary to establish the best excitation and receiving factors after understanding the geological conditions of engineering earthquake, such as the best excitation well depth and the reasonable excitation of the dose. In this paper, taking the 2D seismic acquisition project of the SY fault as an example, based on the theory, the influence of different excitation and reception parameters on the seismic quality of a single seismic gun is analyzed based on the selected test points. Based on the best earthquake Data construction factors as a principle.