Processing methodology for full-waveform sonic wavefield separation

A full waveform and sound wave technology, applied in seismic signal processing, geophysical measurement, seismology for well logging, etc., can solve the problems of uncertainty and inaccuracy of FWS wave field separation results, and reduce artificial Deviation, time-saving effect

Active Publication Date: 2020-02-21
SAUDI ARABIAN OIL CO
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  • Claims
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Problems solved by technology

Existing FWS processing methods ignore this aliasing effect and simply apply processing techniques developed in other fields to FWS data, resulting in uncertainty and inaccuracy in FWS wavefield separation results

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  • Processing methodology for full-waveform sonic wavefield separation
  • Processing methodology for full-waveform sonic wavefield separation
  • Processing methodology for full-waveform sonic wavefield separation

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Embodiment Construction

[0016] The following detailed description describes processing methods for full waveform acoustic wave (FWS) wavefield separation, and is presented to enable any person skilled in the art to implement and use the disclosed subject matter in the context of one or more particular implementations. Various modifications, alterations and substitutions to the disclosed implementations are possible and will be apparent to those skilled in the art, and the general principles defined can be applied to other implementations without departing from the scope of the present disclosure. methods and applications. Thus, the present disclosure is not intended to be limited to the implementations described or shown but is to be accorded the widest scope consistent with the principles and features disclosed.

[0017] FWS data may be collected using FWS equipment in the borehole, and the FWS data may be processed to provide information about the seismic and lithological properties of the formatio...

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Abstract

A method for full-waveform sonic (FWS) wavefield separation includes receiving FWS data; performing an anti-aliasing linear Radon transform on the received FWS data; extracting Radon-transformed FWS data corresponding to a wave component using a slanted window; and determining signals of the wave component by performing an inverse Radon transform on the extracted Radon-transformed FWS data.

Description

[0001] priority statement [0002] This application claims priority to US Patent Application No. 15 / 592,979, filed May 11, 2017, the entire contents of which are incorporated herein by reference. technical field [0003] The present disclosure relates to full waveform acoustic wave (FWS) data processing. Background technique [0004] Full Waveform Sonic (FWS) equipment may be used in the borehole to collect FWS data, which may be processed to provide information about the lithological and fluid properties of the formation. Unlike other geophysical surveys, such as earthquakes and vertical seismic profiling (VSP), FWS data are usually measured using a small sampling time interval but a large offset spacing (offsetspacing), so in the FWS data will produce Aliasing effect. Existing FWS processing methods ignore this aliasing effect and simply apply processing techniques developed in other fields to FWS data, resulting in uncertainty and inaccuracy in FWS wavefield separation ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/40G01V1/50
CPCG01V1/40G01V1/50G01V1/32G01V1/303G01V2210/57G01V2210/46
Inventor 孙学凯克里斯·B·阿亚迪诺卡洛斯·普兰查特
Owner SAUDI ARABIAN OIL CO
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