高密度单点接收地震采集数据的处理方法讨论

doi:10.11720/wtyht.2021.1226

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Abstract

In the past seismic exploration in Qaidam Basin,large combination receiving has been often used in order to achieve the purpose of suppressing noise.However,as the exploration goes deeper,the disadvantages of the big combination gradually emerge.The single detector receiver can combine the channels in the post-processing of the data,which can not only suppress the interference but also eliminate the influence of statics in the large combinations,which is beneficial to the resolution, fidelity and imaging accuracy of the data.Based on the data of a survey line in the area of the peak mountain in the basin,this paper deals with and analyzes the trace combination,discusses the method,process and problems that should be paid attention to in the process of the trace combination,completes the function of the field detector combination,and shows the effect of the trace combination treatment.

Key words： single point reception path combination processing processing flow

Received: 11 May 2020 Published: 21 December 2021

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	Articles by authors
	Fei WANG
	Ya-Jie SUN
	Jin-Mei PEI
	Jian-Guo SONG
	Wen-Jian LI

Cite this article:

Fei WANG,Ya-Jie SUN,Jin-Mei PEI, et al. A discussion on the processing method of high density single point seismic acquisition data[J]. Geophysical and Geochemical Exploration, 2021, 45(6): 1469-1474.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2021.1226 OR https://www.wutanyuhuatan.com/EN/Y2021/V45/I6/1469

FK spectrum of seismic data with different trace distances
a、b、c、d、e—the trace distance is respectively 10,20,30,40,50 m

Relation between trace time difference and trace spacing

Relation between different NMO speeds and time difference

Processing flow chart

Single shot records of different reception
a—conventional geophone data;b—single-point geophone data

Single shot after denoising
a—combination before denoising;b—combination after denoising

Assemble the preceding trace set
a—before statics;b—after statics

Trace set before(a) and after(b) NMO

Tracer set after NMO
a—NMO first;b—combination first

Comparison of stack section
a—NMO first;b—combination first

Overlay profile comparison of different acquisition methods
a—routine flow routine geophone data;b—this paper describes the data of single point detector

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