基于 PCA 法的地震衍射波提取方法及其应用

IF 0.6 4区 工程技术 Q4 ENERGY & FUELS Chemistry and Technology of Fuels and Oils Pub Date : 2024-02-08 DOI:10.1007/s10553-024-01647-4
Huadong Wei, Wei Huang, Tongzhou Ji, Shengli Wang, Rui Liu, Guihong Xu, Mengcheng Shu, Yun Cai, Shenshen Deng
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引用次数: 0

摘要

本文探讨了如何准确描述深层溶洞型储层边界的难题。利用 PCA 波场分离技术,开发了一种从全波场地震数据中提取岩洞及其边界衍射信息的方法。论文介绍了一种基于叠后地震数据提取衍射信息的方法,并证明了该方法在通过前向建模确定岩洞边界方面的有效性。随后,将该方法应用于实际地震数据,提取深层岩洞的衍射信息。通过分离不同尺度的波场信息,提取的衍射信息可有效识别岩洞储层的特征及其边界。通过实例验证,衍射波信息分离方法能更准确地描述深部溶洞型储层的分布,为预测这类储层提供依据。
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The Method of Seismic Diffraction Wave Extraction Based on PCA Method and its Application

This paper addresses the challenge of accurately describing the boundary of deep cavern-type reservoirs. A method is developed to extract diffraction information from the cavern and its boundaries from full wavefield seismic data using PCA wavefield separation technology. The paper describes a method for extracting diffraction information based on post-stack seismic data, and demonstrates the validity of this method in identifying cavern’s boundaries via forward modeling. Subsequently, the method is applied to actual seismic data to extract diffraction information from deep caverns. By separating wavefield information at different scales, the extracted diffraction information can effectively identify the characteristics of cavernous reservoirs and their boundaries. It is verified by examples that the diffraction wave information separation method can provide a more accurate description of the distribution of deep cavern-type reservoirs, which can provide a basis for predicting this type of reservoir.

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来源期刊
Chemistry and Technology of Fuels and Oils
Chemistry and Technology of Fuels and Oils 工程技术-工程:化工
CiteScore
0.90
自引率
16.70%
发文量
119
审稿时长
1.0 months
期刊介绍: Chemistry and Technology of Fuels and Oils publishes reports on improvements in the processing of petroleum and natural gas and cracking and refining techniques for the production of high-quality fuels, oils, greases, specialty fluids, additives and synthetics. The journal includes timely articles on the demulsification, desalting, and desulfurizing of crude oil; new flow plans for refineries; platforming, isomerization, catalytic reforming, and alkylation processes for obtaining aromatic hydrocarbons and high-octane gasoline; methods of producing ethylene, acetylene, benzene, acids, alcohols, esters, and other compounds from petroleum, as well as hydrogen from natural gas and liquid products.
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