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The AAPG/Datapages Combined Publications Database

Showing 1,541 Results. Searched 200,626 documents.

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High-resolution imaging using Gaussian beam point-spread-function deconvolution

Jidong Yang, Jianping Huang, Hejun Zhu, George McMechan

International Meeting for Applied Geoscience and Energy (IMAGE)

..., h) = √ 3 2 σ2 ( 2πσ) Psf (x, h), (4) where Fh is the multidimensional Fourier transform for −1 subsurface offsets, and Fh is the corresponding...

2023

Multicomponent seismic data vector reconstruction via quaternionic matrix factorization

Yonghai Fu, Jianjun Gao, Wenbo Sun, Yandong Wang, Fan Li

International Meeting for Applied Geoscience and Energy (IMAGE)

...) into the frequency domain via Quaternion Fourier Transform, abbreviated as  QFT (Ell and Sangwine., 2007) and denote it as Q( f , x, y) , f...

2023

Integration and Comparison of Multi-Scale Digital Rock Analysis With Bulk Rock Porosity and LECO TOC Within Multiple Appalachian Basin Formations

Joel Walls, Gabriela Davalos, Matthew Weinreich

Unconventional Resources Technology Conference (URTEC)

... GRI crushed rock analysis, LECO TOC, X-ray Powder Diffraction (XRD), X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FTIR) and SEM...

2017

Feature template based nonlinear time difference correction for first break automatic picking

Chao Ning, Huazhong Wang, Bo Feng, Chengliang Wu

International Meeting for Applied Geoscience and Energy (IMAGE)

... and nhc corresponding rows and columns of the hankel matrix. For instance, we can perform Fourier transform on Figure 1(e) and arrange the frequency...

2024

Identification of Deltaic Facies with 3-D Seismic Coherency and the Spectral Decomposition Cube: A Study Form South Marsh Island Area, Gulf of Mexico

John A. Lopez , Greg Partyka , Norm L. Haskell , Susan E. Nissen

GCAGS Transactions

... Decomposition Cube is a Fourier transform applied to individual traces within a window around an interpreted horizon. Examination of the amplitude maps...

1997

Some Future Directions in Reservoir Fluid Geochemistry, #90110 (2010)

Steve Larter, Chunqing Jiang, Lloyd Snowdon, Barry Bennett, Thomas Oldenburg, Haiping Huang, Ian Gates, Jennifer Adams

Search and Discovery.com

..., Vail, Colorado. Larter, Jiang, Snowdon, Bennett, Oldenburg, Huang, Gates, Adams…Page 3 Also in the 1970’s, Fourier Transform Ion Cyclotron...

2010

Abstract: Estimating the Spectra of Small Events for the Purpose of Evaluating Microseismic Detection Threshholds; #90174 (2014)

N. Ackerley

Search and Discovery.com

... spectrum as: √ ( ) This is the Fourier transform with respect to time of the displacement of some point in the far field vs. time. Because computing...

2014

Abstract: Q Estimation by a Match-filter Method; #90174 (2014)

Peng Cheng and Gary F. Margrave

Search and Discovery.com

..., AB, Canada The match-filter method described above is theoretically similar to the spectral-ratio method because the inverse Fourier transform...

2014

Abstract: New Routes to Solutions of the WCSB Oil Charge Conundrum: γ-ray Photons and Fourier Transform Mass Spectrometry; #90174 (2014)

Steve Larter, Thomas Oldenburg, Norka Marcano, Lloyd Snowdon, Jennifer Adams, Ken Chanthramonti, Andrew Stopford, Haiping Huang, Fuqin Song, Claude Laflamme, and Mike Ranger

Search and Discovery.com

...Abstract: New Routes to Solutions of the WCSB Oil Charge Conundrum: γ-ray Photons and Fourier Transform Mass Spectrometry; #90174 (2014) Steve Larter...

2014

Multichannel Profiles Collected in 1982 in the Tonga Region of the South Pacific

Dennis M. Mann

Circum Pacific Council Publications

... electrostatic plotter. Parameters for these post-stack functions are derived from a power spectrum analysis, which uses a Fourier transform routine...

1985

Investigating Natural Fracture Effects on Well Productivity: Eagle Ford, La Salle County, Texas

Paolo Grossi

Unconventional Resources Technology Conference (URTEC)

...) Normalized total mudgas; by dividing total gas by drilling rate of penetration (ROP) and applying a Fourier transform scanline analysis (method adapted from...

2015

Combined OBN and high-resolution 3D streamer acquisition for CO2 monitoring: Initial model building and imaging results over Sleipner

Simon Stokes, Sandrine David, Eddie Cho, Dhiman Mondal, Graeme Stock, Simon Baldock

International Meeting for Applied Geoscience and Energy (IMAGE)

... Multiple Elimination (IME) application to suppress the strong multiple content that cuts across the primary reservoir targets. 4D Anti Leakage Fourier...

2023

Characterising lithium host minerals within the lateritic duricrust, Greenbushes, Western Australia

Sophie Vuleta, Monica LeGras, Raymond E. Smith, Carsten Laukamp, Louise Schoneveld, Ravi Anand

Petroleum Exploration Society of Australia (PESA)

... data was collected using portable TerraSpec and Fourier Transform Infrared (pFTIR) devices, covering a continuous wavelength range from 350 – 14500 nm...

2019

Direct exact nonlinear resolution enhanced inversion for fluid modulus and porosity

Xiao Chen, Zhaoyun Zong, Yu Chen, Yushen Jiang

International Meeting for Applied Geoscience and Energy (IMAGE)

... of seismic data, S ( ) and W ( ) are the Fourier transform of seismic data and wavelet, represrntly. m =  K f   T and m 0 =  K 0  0  0...

2024

Monitoring underwater sounds using distributed acoustic sensing with a dark fiber: A pilot study offshore Western Australia

Evgenii Sidenko, Olivia Collet, Henry A. Debens, Christine Erbe, Alexander N. Gavrilov, David Hume, Robert D. McCauley, Denise McCorry, Roman Pevzner, Pavel Shashkin, Konstantin Tertyshnikov, Boris Gurevich

International Meeting for Applied Geoscience and Energy (IMAGE)

... offshore Australia Results Figure 2 shows Welch spectrograms (short-time Fourier transform) of DAS data from a single channel over two 24hour periods...

2024

The Determination of Highly Fractured Zone by HVSR Method and its Application on EOR Project Development

Felix Andrean, Muhammad Kukuh Al-Rasyid, Dhara Adhnandya Kumara, Agus Riyanto

Indonesian Petroleum Association

... source software (http://www.geopsy.org). Fast Fourier Transform (FFT) is applied to convert the time domain signal into frequency domain. Additionally...

2018

Effects of Temperature and Gas Pressurization on the Interpretation of NMR Hydrocarbon Measurements in Organic-Rich Shale

Son T. Dang, Carl H. Sondergeld, Chandra S. Rai

Unconventional Resources Technology Conference (URTEC)

... Fourier Transform Infrared (FTIR), and TOC measured with a LECO® instrument. Table 1. Petrophysical characterization of four samples. These samples...

2019

Mineralogical, Geothermal, and Porosity Analysis of the Eagle Mills Formation, Newton County, Mississippi

Tim Palmer, David Dockery

GCAGS Transactions

.... R., M. M. Herron, and S. L. Herron, 2017, Comparison of quantitative mineral analysis by X-ray diffraction and Fourier transform infrared spectroscopy...

2018

Bitumen geochemistry and producibility in the Upper Cretaceous Niobrara Formation shale oil play

Yuanjia Han, Brian Horsfield, Nicolaj Mahlstedt, and Heather LaReau

AAPG Bulletin

...); and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Figure 2. Flow chart of experimental analysis. The specific...

2021

Accelerometer vs. Geophone Response: A Field Case History

Search and Discovery.com

... to determine the ground acceleration from the geophone data. Taking the Fourier transform of the simple harmonic oscillator equation allows us...

2013

Abstract: Robust Rank-Reduction Filters for Erratic Noise; #90174 (2014)

Stewart Trickett, Lynn Burroughs, and Andrew Milton

Search and Discovery.com

... the Discrete Fourier Transform (DFT) of each trace. 2: For each frequency… 2.1: Insert the complex values for this frequency and all traces...

2014

Geobody Modelling and Reservoir Characterization of Siliciclastic Wara Formation in Khashman Field, Kuwait, #41005 (2012)

Bhaskar Chakrabarti, Meshal Al-Wadi, Lin Ye, Jalal Dashti

Search and Discovery.com

... a Discrete Fourier Transform (OFT) method is used . ~_ r r- - IJ I~ ~ I ~ , § ,- ~ § E E ~ ~ ! § E ., It~ ik I ~ N E N M ,- its...

2012

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