节点“盲采”配套单炮资料实时质控技术及应用

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中图分类号:P631 文献标识码:A DOI:10.13810/j.cnki.issn.1000-7210.20240355

Abstract:With the widespread application of node instruments in seismic exploration,their quality control (QC) problems become increasingly prominent,and their“blind acquisition”mode lacks real-time data transmission capability,making it impossible to monitor and effectively analyze the quality of single-shot data in real time.This results in delays in the synthetic analysis of seismic acquisition data and afects the timelinessof data QC and exploration decision-making responses. Therefore,based on the single-shot acquisition mode combining wired monitoring arrys and node instruments,this paper develops a real-time QC technology for singleshotdata acquisition in node instrument“blind acquisition”for the characteristics of seismic data from monitoring arrays. Firstly,the single-shot energy is calculated based on the spherical spreading principle to achieve an accurate analysis of single-shot energy. Secondly,an environmental noise analysis technique based on the number of disturbed channels is employed,with the proportion of disturbed channels calculated to assess environ mental noise.Finall,supporting real-time monitoring software is developed to enable real-time monitoring of single-hot excitation energy and noise. This technology is applied to the full-node 3D seismic acquisition project in the NCB area of the Sichuan Basin.The results show a high correlation between the energy of the monitoring array and the full-shot energy,as wellas high consistency in the proportion of disturbed channels.This significantly improves seismic exploration efficiency and data quality,providesan effective method for real-time QCof blind acquisition seismic data,and holds significance in the commercial application of 5G real-time data transmission of nodes.

Keywords: node instrument, blind acquisition,single-shot data,real-time monitoring,excitation energy,exter nal interference

罗文,王勤耕,李明翼,等:节点"盲采"配套单炮资料实时质控技术及应用[J].石油地球物理勘探,2025,60(4): 870-878. LUO Wen,WANG Qingeng,LI Mingyi,et al.Real-time quality control technology and application for singleshotdata innode instrument“blindacquisition"[J].OilGeophysical Prospecting,2025,60(4):870-878.

0 引言

在地震勘探中,常规有线地震采集系统通过实时获取采集的地震数据,分析单炮的能量、环境噪声、爆炸信号、井口信号、不正常道、炮点位置等,同时基于质量标准进行多因素评价,形成野外质量评价班报来及时反馈质量问题和指导生产[1-3]。(剩余8670字)

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