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The AAPG/Datapages Combined Publications Database

Showing 11,036 Results. Searched 200,293 documents.

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A new reverse time migration denoising method based on diffusion filtering with X-shaped denoising operator

Chongpeng Huang, Yingming Qu, Zhenchun Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... generates strong low-frequency noise. Generally, the Laplace filtering method is performed directly on the migration data to attenuate low-frequency noise...

2022

A method of relative impedance holography-inversion based on reflection coefficient inversion

Jiangfeng Zheng, Jialin Sun, Zongyu Zhen, Shaoxuan Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... impedance of formation by trace integration of reflection coefficient. Then usually the low frequency trend filtering is used to calculate relative impedance...

2022

Mini Seismic Processing System for Training and Research Purposes

Suprajitno Munadi, Bambang Triharjanto

Indonesian Petroleum Association

.... The trainee can observe the frequencies contained in the data. This analysis can be extended to digital frequency filtering exercise. Figure 8. An example...

1993

Practical considerations for computing the kernels of reflection-based full-waveform inversion

Houzhu (James) Zhang, Hong Liang, Hongwei Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... on the conditioning of time-shifts from dynamic warping, preparation of Born velocity perturbation, approximation of Hessian and filtering of frequency components...

2022

Wide-Band Velocity Filtering--The Pie Slice Process: ABSTRACT

Peter Embree, John P. Burg, Milo M. Backus

AAPG Bulletin

...Wide-Band Velocity Filtering--The Pie Slice Process: ABSTRACT Peter Embree, John P. Burg, Milo M. Backus 1963 1769 1769 47 9. (September...

1963

A statistical method-based approach for frequency-varying residual phase detection and correction

Longxiang Han, Rongwei Xu, Chengliang Wu, Huazhong Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... multiresolution Gauss filtering methods to achieve frequency constraint in order to reduce the noise impact on the phase. Then, the wavelet spectrum...

2024

Structural subdivision of channel sand bodies based on frequency division coherence and attribute fusion

Qian Yu, Jianli Wang, Huajing Chen, Heng Zhang, Lien Bian

International Meeting for Applied Geoscience and Energy (IMAGE)

... faults and channel boundaries by means of structural-steering filtering technology based on dip-control and frequency-division coherent technology...

2022

Workflows to Improve the Resolution of Post-Stack Seismic Data and Attributes from the Malay Basin (Paper P31)

A. E. Barnes, M. F. A. Rahim, A. R. Ghazali

Geological Society of Malaysia (GSM)

... processing are spectral blueing and coherency filtering. Spectral blueing increases seismic data resolution by increasing the bandwidth and boosting...

2012

Application of high-resolution reflection seismology to eastern Kansas cyclothems

Ralph W. Knapp

Kansas Geological Society

... by frequency, for practical purposes and assuming good quality work, resolution is proportional to frequency. Detection In the process of attempting...

1989

Data-driven near-surface Q compensation: A case study in Sichuan Basin of China

Xinyuan Feng, Yulian Zhao, Mingtu Xiao

International Meeting for Applied Geoscience and Energy (IMAGE)

... a method that is suitable for all situations in practical application. The centroid frequency shift method, based on prestack seismic data, is a good...

2024

Steps for Improving the Utility of Land Seismic Data for Unconventional Reservoirs

Christof Stork

Unconventional Resources Technology Conference (URTEC)

... filtering approach. This frequency editing approach can be incorporated as part of 5D interpolation. Pre-stack attributes rely on the noisy “edge...

2018

Abstract: Ground Roll Attenuation via SVD and Adaptive Subtraction; #90171 (2013)

Peter Cary and Changjun Zhang

Search and Discovery.com

... based on the characteristics of the noise. Ground roll appears as low-velocity, low-frequency and high-amplitude waves which are distributed in fan...

2013

Abstract: Ground Roll Attenuation via SVD and Adaptive Subtraction; #90171 (2013)

Peter Cary and Changjun Zhang

Search and Discovery.com

... based on the characteristics of the noise. Ground roll appears as low-velocity, low-frequency and high-amplitude waves which are distributed in fan...

2013

Extending the Resolution of Seismic Reflection Exploration

L. R. Denham

Pacific Section of AAPG

... roll by velocity filtering is used. Realistic values for frequency, depth and dip of reflections will usually give a minimum number of groups around 100...

1980

Improving AVO Fidelity by NMO Stretching and Offset Dependent Tuning Corrections, #41574 (2015).

Yong Xu, Satinder Chopra

Search and Discovery.com

... frequency signal left after filtering and NMO correction. The lost high frequency components at far offset can be estimated from near offset data, where...

2015

Field Technique Design for Seismic Reflection Exploration

L. R. Denham

Dallas Geological Society

... be required. Otherwise, the geophone frequency should be as low as practical to retain bandwidth in the octave sense. Manufacturers have found...

1982

Corrected Record Sections

Ernest M. Hall Jr.

CSPG Special Publications

... of Fig. 4 show the effect of filtering. Both were played back from the same tape, the first through a high frequency filter and the second through a low...

1957

Spatial Analysis of Basement and Cover Linears by Optical Diffraction - Methods, Results, and Interpretation

Howard J. Pincus, Thomas W. Doe

Utah Geological Association

... quantitatively. Filtering may assist in examining relatively obscure linears. Relations between spatial frequency and direction might be important...

1974

Structural Analysis Using Spatial Filtering in Interior Plains of South-Central Alberta

J. E. Robinson , H. A. K. Charlesworth , M. J. Ellis

AAPG Bulletin

...). Filtering in Frequency Domain Ideal or linear filters change the amplitudes and phases of the component sinusoids of a waveform without adding any...

1969

DAS noise attenuation using wavelet stack

Zhou Yu, Zhaojun Liu, Ge Zhan, Peng Cheng, Bin Wang, Weihong Fei

International Meeting for Applied Geoscience and Energy (IMAGE)

... based filtering targets low frequency, outlier amplitude noise which could degrade the effectiveness of 2D filtering. An ideal noise attenuation technique...

2022

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