基于 RTH 方法的随机采集系统

IF 2.2 3区 地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY Journal of Applied Geophysics Pub Date : 2024-09-12 DOI:10.1016/j.jappgeo.2024.105520
Vadim Agafonov , Vitaliy Bryksin , Gennady Erokhin , Andrey Ronzhin
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引用次数: 0

摘要

传统的地震采集系统通常处理常规的震源和接收器拓扑布局,因为它面向介质的水平结构。然而,由于需要开发所谓的非常规碳氢化合物矿藏,因此需要使用更复杂的介质模型,例如描述断裂洞穴石油陷阱等结构。因此,新的地震处理方法应运而生,这反过来又要求地震记录系统本身发生变化。随机地震采集系统有别于传统的常规系统,它随机放置震源和接收器,从估算环境参数的角度来看,随机地震采集系统是利用散射波进行矢量地震勘探的新方法的最佳选择。本文旨在描述一种名为反向时间全息的方法的特点,并展示其采集系统的新可能性。我们证明,使用这种新方法可以在不影响地震属性质量的情况下大幅减少震源和接收器的数量。通过经验验证,我们发现震源数量最多可减少 8 倍,而接收器数量最多可减少 3 倍。
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Stochastic acquisition systems based on RTH method

Conventional seismic acquisition systems deal with, as a rule, regular topology of sources and receivers layout because it is oriented to a horizontal structure of media. However, the need to involve so-called unconventional hydrocarbon deposits in development requires the use of more complex media models that describe, for example, structures such as fractured-cavernous oil traps. As a result, a new seismic processing methods are emerging, which, in turn, require changes in the seismic recording systems themselves. It turns out that stochastic seismic acquisition systems, which differ from conventional regular systems by randomly placing both sources and receivers, are optimal from the point of view of estimating environmental parameters for new methods of vector seismic exploration on scattered waves. The purposes of paper to describe the features of the one of such approach called Reverse Time Holography and show the new possibilities of its acquisition systems. We demonstrate that substantial reductions in both the number of sources and receivers can be achieved without compromising the quality of seismic attributes using the new approach. Through empirical validation we illustrate that sources reduction can reach up to 8 times, while receivers reduction can reach up 3 times.

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来源期刊
Journal of Applied Geophysics
Journal of Applied Geophysics 地学-地球科学综合
CiteScore
3.60
自引率
10.00%
发文量
274
审稿时长
4 months
期刊介绍: The Journal of Applied Geophysics with its key objective of responding to pertinent and timely needs, places particular emphasis on methodological developments and innovative applications of geophysical techniques for addressing environmental, engineering, and hydrological problems. Related topical research in exploration geophysics and in soil and rock physics is also covered by the Journal of Applied Geophysics.
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