Application of conditional simulation of heterogeneous rock properties to seismic scattering and attenuation analysis in gas hydrate reservoirs

Huang, Junwei; Bellefleur, Gilles; Milkereit, B.

doi:10.1016/j.jappgeo.2011.12.002

Cited by 5 publications

(2 citation statements)

References 46 publications

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“…It is necessary to establish the mathematical expression relationship between P-wave, S-wave velocity, density, and other physical parameters obtained by seismic data inversion and saturation through the method of petrophysical modeling. In this way, the 1dimensional gas hydrate physical parameters obtained from logging data are extended to 2-dimensional and 3-dimensional space to complete the prediction of gas hydrate saturation (Worthington, 2008;Huang et al, 2012;Pan et al, 2019;Dong et al, 2020;Liu et al, 2020;Betlem et al, 2021;Yang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Two-Phase Modeling Technology and Subsection Modeling Method of Natural Gas Hydrate: A Case Study in the Shenhu Sea Area

Liu

Jiang²,

Lai³

et al. 2022

Front. Earth Sci.

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It is found that natural gas hydrate is not only a pore-filling material but also exists in the reservoir in the form of rock skeleton particles. Therefore, the traditional petrophysical simulation method cannot well describe the physical properties of natural gas hydrate reservoir. At the same time, the physical properties of the hydrate layer and its associated free gas layer are quite different, so it is difficult to fit the physical properties of the two media using traditional modeling methods. The two-phase modeling technology used in this paper is the equivalent medium modeling technology based on BK solid substitution theory and Gassmann fluid substitution theory, which simulates hydrate particles in rock skeleton and hydrate filling in pores, respectively. The forward simulation results show that the two-phase simulation technology of natural gas hydrate can well fit the P-wave and S-wave velocity information of the medium. At the same time, the equivalent medium model of the free gas reservoir is established by using only Gassmann fluid substitution theory. The practical application shows that the subsection modeling method can well solve the problem of the too large difference between the two sets of reservoir physical properties and make the calibration results of forward modeling synthetic records more accurate.

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Section: Introductionmentioning

confidence: 99%

Two-Phase Modeling Technology and Subsection Modeling Method of Natural Gas Hydrate: A Case Study in the Shenhu Sea Area

Liu

Jiang²,

Lai³

et al. 2022

Front. Earth Sci.

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“…A full deterministic description of the heterogeneities is neither possible nor desirable and a statistical description can be much more practical and useful. In exploration geophysics, the knowledge of small‐scale heterogeneities is also important to assess the oil/gas/geothermal volume in the reservoir evaluations in resource exploration and production (e.g., Huang et al, 2012; Meng et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Stochastic Inversion of Gaussian Random Media Using Transverse Coherence Functions for Reflected Waves: Theory and Method

Zheng

2020

JGR Solid Earth

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The transverse coherence functions (TCFs) of phase and amplitude fluctuations of a seismic wave are powerful to estimate the spatial distribution, length scales, and strength of random heterogeneities. However, TCFs have been formulated for transmitted waves only, not for reflected waves. In this paper, we derive reflection TCFs for Gaussian random media using the mirror reflection principle. Furthermore, we propose to invert for Gaussian random media using the reflection TCFs based on a grid search. We validate the new reflection TCF formulas using 2-D elastic finite-difference numerically modeled seismic data. We also show the feasibility and efficiency of the inverse problem. The stochastic inversion using reflected waves can be used in both exploration and global seismology. However, the commonly used TCF methods were formulated for transmitted waves. The reflection case has not been done analytically. Transmission TCFs are useful for teleseismic or cross-well observations. The

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An improved stochastic inversion method for 3D elastic impedance under the prior constraints of random medium parameters

Lin,

Zhang,

Wang

et al. 2024

Geoenergy Science and Engineering

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Application of conditional simulation of heterogeneous rock properties to seismic scattering and attenuation analysis in gas hydrate reservoirs

Cited by 5 publications

References 46 publications

Two-Phase Modeling Technology and Subsection Modeling Method of Natural Gas Hydrate: A Case Study in the Shenhu Sea Area

Two-Phase Modeling Technology and Subsection Modeling Method of Natural Gas Hydrate: A Case Study in the Shenhu Sea Area

Stochastic Inversion of Gaussian Random Media Using Transverse Coherence Functions for Reflected Waves: Theory and Method

An improved stochastic inversion method for 3D elastic impedance under the prior constraints of random medium parameters

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