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A Seismic Waveform Driven High Resolution Seismic Inversion Method

A seismic waveform and high-resolution technology, applied in the field of oil and gas geophysical exploration, can solve the problem of low seismic inversion resolution and achieve the effect of high-resolution inversion

Active Publication Date: 2021-10-26
北京中恒利华石油技术研究所
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Problems solved by technology

[0006] The main purpose of the present invention is to provide a high-resolution seismic inversion method driven by seismic waveforms, aiming to solve the technical problem of low seismic inversion resolution existing in the prior art

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  • A Seismic Waveform Driven High Resolution Seismic Inversion Method
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  • A Seismic Waveform Driven High Resolution Seismic Inversion Method

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Embodiment Construction

[0032] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] The present invention proposes an embodiment. In order to organically combine the horizontal high resolution of seismic data and the vertical high resolution of well logging data, the present invention proposes a method based on the principle of seismic waveform similarity, using waveform clustering ...

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Abstract

The invention discloses a high-resolution seismic inversion method driven by seismic waveforms, which realizes phase-controlled inversion in the true sense through seismic waveform clustering, and the phase control is automatic phase control realized by actually collected seismic data. It is objective and real; the common structure is obtained by obtaining the common structure in the sample group of the seismic waveform-wave impedance curve to establish a high-frequency initial model, and high-resolution inversion is realized; at the same time, the correlation coefficient of the well-seismic synthetic record and the trace to be inverted are used in the inversion process The correlation coefficient between the waveform and the selected sample well waveform establishes the inversion reliability evaluation index, which realizes the quantitative characterization of the inversion result quality. The invention aims to solve the technical problem of low seismic inversion resolution existing in the prior art.

Description

technical field [0001] The invention relates to the technical field of oil and gas geophysical exploration, in particular to a high-resolution seismic inversion method driven by seismic waveforms. Background technique [0002] Nearly 90% of my country's oil reserves come from sandstones mainly deposited in continental lake basins. Continental sedimentary sandstones often have the characteristics of multiple provenances, near provenances, short currents, rapid changes, and thin sand bodies. Most thin sandstones or thin interbedded The thickness of a single layer of sandstone is generally only 1-3 meters, or even less. From the principle of seismic exploration, the maximum stratum thickness that can be predicted by seismic data is often only 20-30m. Therefore, conventional seismic inversion methods cannot meet the requirements of thin sandstone prediction. [0003] In order to solve the problem of thin-bed sandstone prediction, there are two mainstream technical means, one is ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/48G01V1/50G01V1/28G01V1/30
CPCG01V1/282G01V1/306G01V1/48G01V1/50
Inventor 毕建军陈彦虎李志向张旭升纪晓超
Owner 北京中恒利华石油技术研究所
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