Technology of variable slip time sweep and low-frequency energy compensation with vibroseis operation

Abstract

Abstract: Vibroseis is widely valued and applied by the industry due to its features of safety, environmental friendly and controllable frequency and energy. This paper presents a target-oriented, high-quality and efficient seismic exploration method, namely, variable slip time sweep (VSTS) and broadband exploration technology of low-frequency energy compensation. According to the special conditions of exploration areas with large-span buried depths of target formations and complex geological structures and surfaces, well-designed distribution and method of vibroseis operation were put forward, which is based on noise interference between vibroseises and surface conditions and for the purpose of high-quality imaging of reflection data. As a result, high-quality and efficient operation with vibroseis has been achieved. Favorable results have been obtained after the application in complex geological targets within some basins in West China.

Key words: vibroseis, variable slip time sweep (VSTS), low-frequency energy compensation, slip sweep, sweep signal

Zhao Diandong, Hu Lixin, Song Guiqiao, Han Wengong. Technology of variable slip time sweep and low-frequency energy compensation with vibroseis operation[J]. China Petroleum Exploration, 2016, 21(3): 116-123.

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