地震资料品质自动评价系统
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摘要
为适应勘探市场对技术的要求,控制野外施工质量,为现场处理提供更为科学、客观的判断标准,减少人为因素,公平、公正、客观地评价采集资料的品质,提高效率,降低成本,有必要开发功能完善的地震资料定量分析质量控制系统。通过该系统的开发和应用,对采集的地震记录进行科学的定量分析,用科学的方法、量化的数据和可见的图表为野外资料的采集提供新的质量控制手段。本系统依据SY／T5330-1995((陆上二维地震勘探资料采集技术规范》的要求,对爆炸信号、井口信号、不正常道、环境噪音、炮点位置、初至时间、早炮、晚炮、感应、磁带丢码、能量、信噪比、分辨率等地震勘探中可能发生的各种事件进行分析,并进行原始记录质量评价。统计出一级品、二级品、废品率,最后生成野外评价班报。利用该系统对川东北地区通南巴区块的地震资料进行了试评价,取得了比较满意的效果。
It is necessary to develop a solid control system for quantitative analysis of seismic data, to meet the demands on field data quality from exploration market, provide objective and scientific criteria for on-site processing, reduce the influence of artificial factors, and increase efficiency as well as decrease cost The system was developed according to China standard SY/ T5330-1995, The Technical Standards for 2-D Land Seismic Data Acquisition. We use quantitative data and charts obtained by scientific methods as new quality control tools for field data evaluation. The system is able to perform analysis of all possible factors in seismic acquisition, such as pit head signals, abnormal traces, ambient noises, shotpoint location, first-arrival time, advanced shots, delayed shots, sensory, discorded codes on magnetic tape, energy, signal-to-noise ratio, and resolution. It performs statistics in terms of first-class, secondary class, and waste rate, etc, and generates a report about the quality of the field data. Satisfactory results have been achieved by applying the system to quality evaluation of seismic data from Tongnanba survey area of eastern Sichuan Province.
It is necessary to develop a solid control system for quantitative analysis of seismic data, to meet the demands on field data quality from exploration market, provide objective and scientific criteria for on-site processing, reduce the influence of artificial factors, and increase efficiency as well as decrease cost The system was developed according to China standard SY/ T5330-1995, The Technical Standards for 2-D Land Seismic Data Acquisition. We use quantitative data and charts obtained by scientific methods as new quality control tools for field data evaluation. The system is able to perform analysis of all possible factors in seismic acquisition, such as pit head signals, abnormal traces, ambient noises, shotpoint location, first-arrival time, advanced shots, delayed shots, sensory, discorded codes on magnetic tape, energy, signal-to-noise ratio, and resolution. It performs statistics in terms of first-class, secondary class, and waste rate, etc, and generates a report about the quality of the field data. Satisfactory results have been achieved by applying the system to quality evaluation of seismic data from Tongnanba survey area of eastern Sichuan Province.
引文
1李庆忠．走向精确勘探的道路[M]．北京:石油工业出 版社,1994．196
2熊翥．地震数据数字处理应用技术[M]．北京:石油工 业出版社,1993．319
3熊翥．复杂地区地震数据处理思路[M]．北京:石油工 业出版社,2002．301
4陈乾生．信号数字处理的数学原理[M]．北京:石油工 业出版社,第2版,1993．815
5牟永光．地震勘探资料数字处理方法[M]．北京:石油 工业出版社,1981．278
6芮建民,石一青,贾洪顺．高邮凹陷南断阶带低信噪比 地区地震勘探技术[J]．勘探地球物理进展,2005, 28(4):258-264
7唐东磊,严峰,王新全．潜水面以下激发深度选取的理 论分析[J]．勘探地球物理进展,2005,28(1):36-41
8许生卫,唐汇超,石一青等．沙漠区高分辨率采集研究 与试验[J]．勘探地球物理进展,2005,28(2):108-116
9张付生,常玉举,李宏武．泌阳凹陷老区地震采集技术 探讨[J]．石油物探,2004,43(1):58-61
10黄东定,陈迎春,唐成鸽等．黄桥-如皋地区地震采集 方法效果分析[J]．石油物探,2004,43(2):176-180
11范哲清,卢刚臣,李玉海等．大港油田油气开发区三维 地震二次采集部署方法探讨[J]．石油物探,2005, 44(1):51-57
2熊翥．地震数据数字处理应用技术[M]．北京:石油工 业出版社,1993．319
3熊翥．复杂地区地震数据处理思路[M]．北京:石油工 业出版社,2002．301
4陈乾生．信号数字处理的数学原理[M]．北京:石油工 业出版社,第2版,1993．815
5牟永光．地震勘探资料数字处理方法[M]．北京:石油 工业出版社,1981．278
6芮建民,石一青,贾洪顺．高邮凹陷南断阶带低信噪比 地区地震勘探技术[J]．勘探地球物理进展,2005, 28(4):258-264
7唐东磊,严峰,王新全．潜水面以下激发深度选取的理 论分析[J]．勘探地球物理进展,2005,28(1):36-41
8许生卫,唐汇超,石一青等．沙漠区高分辨率采集研究 与试验[J]．勘探地球物理进展,2005,28(2):108-116
9张付生,常玉举,李宏武．泌阳凹陷老区地震采集技术 探讨[J]．石油物探,2004,43(1):58-61
10黄东定,陈迎春,唐成鸽等．黄桥-如皋地区地震采集 方法效果分析[J]．石油物探,2004,43(2):176-180
11范哲清,卢刚臣,李玉海等．大港油田油气开发区三维 地震二次采集部署方法探讨[J]．石油物探,2005, 44(1):51-57
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