可控震源时变滑动扫描及低频能量补偿技术

摘要/Abstract

摘要： 由于可控震源安全、环保、频率和能量可控等作业特点，获得业界的广泛重视和推广应用。给出了一种面向地质目标的可控震源优质、高效地震勘探技术方法，即可控震源时变滑动扫描（VSTS）方法和低频能量补偿的宽频勘探技术。针对勘探目的层埋深跨度大、地质构造和地表复杂勘探区的特殊条件，提出了以可控震源间特征噪声干扰水平、地表条件为依据，以目的层反射资料高质量成像为目的，合理设计可控震源作业面上的分布和工作方法，实现了可控震源优质、高效地震施工，在中国西部多个盆地复杂地质目标勘探中应用获得很好的资料效果。

关键词: 可控震源, 时变滑动扫描, 低频能量补偿, 滑动扫描, 扫描信号

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

赵殿栋, 胡立新, 宋桂桥, 韩文功. 可控震源时变滑动扫描及低频能量补偿技术[J]. 中国石油勘探, 2016, 21(3): 116-123.

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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