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The AAPG/Datapages Combined Publications Database
Showing 254 Results. Searched 195,387 documents.
Application of Robust Noise Reduction on a Land 3D Seismic Data
Agus Abdullah, Jesse Shaw
Indonesian Petroleum Association
... conjugation since the temporal elongation of the waveform due to dispersion are negated. The phase by a time conjugated waveform is aligned at shift...
2012
The Complexity of Identifying and Quantifying Natural and Anthropogenic Influences on Surface Movement in Coal Seam Gas Producing Regions within the Surat Basin, Queensland
Sarah Brennand, Phil Hayes, Christopher Leonardi
Australian Petroleum Production & Exploration Association (APPEA) Journal
... to an earthquake) between SAR acquisitions, a ‘phase shift’ will occur (Fig. 2). This shift is displayed as interference fringes, with a single fringe equating...
2023
Time Frequency Gathers: An Optimal Spectral Decomposition Analysis Approach
Badsha Basu Roy
Indonesian Petroleum Association
... Proceedings, 2016 T(t) is seismic trace, H(t) is Hilbert’s transform of T(t) i.e. 900 phase shift of T(t) It is represented as positive values...
2016
Crooks Gap Field: Problems with 3-D Interpretation (Extended Abstract)
Robert E. Wellborn, Mike Peffer
Wyoming Geological Association
... statics reapplied 3D DMO DMO velocity analysis CDP statics Stack 1 pass 3D migration (Phase Shift) using 100% velocities Time domain...
2000
Seismic Inversion
Michel Kemper
Petroleum Exploration Society of Australia (PESA)
..., t hough, there may be a phase shift or some residua l NMO/ misalignment in the data to correct for prior t o inversion. Here some recommended seismic data...
2010
Pre-Stack Imaging: Time or Depth? (Paper 25)
Carl Notfors, Peter Whiting, Geoff Mansfield
Geological Society of Malaysia (GSM)
... (fourth-order), DMO, stack and time migration (phase-shift plus stolt algorithm). Next it was processed using pre-stack Kirchhoff imaging, which...
2000
Permanent Reservoir Monitoring Using Fiber-Optic Technology (Geophysics Paper 22)
Steve Maas, Brett Bunn, Rune Tenghamn
Geological Society of Malaysia (GSM)
... causes a phase shift in the light as it passes through the interferometer. The phase information is extracted from the returning light to output...
2008
Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method
Tianfei Zhu
Search and Discovery.com
...) <(x, Z) A( 0) (x 0 ) V (x) exp[iZW (x) iS sgn(Z)V / 2] , E ( x) V ( x 0 ) (6) where KMAH index V takes into account the accumulated phase shift due...
Unknown
Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method
Tianfei Zhu
Search and Discovery.com
...) <(x, Z) A( 0) (x 0 ) V (x) exp[iZW (x) iS sgn(Z)V / 2] , E ( x) V ( x 0 ) (6) where KMAH index V takes into account the accumulated phase shift due...
Unknown
Abstract: Parallel Implementation of Pre-stack Least-squares Migration for Distributed Systems; #90171 (2013)
Sam T. Kaplan
Search and Discovery.com
..., the phase-shift operator and split-step correction operator at the k th depth. Finally, f (ω ) is the frequency distribution of the source, and c 0 and c1...
2013
Abstract: Efficency and Accuracy Enhancement for One-way Wave Equation Migration Through Improved Mapping Function in the Time-shift Imaging Condition; #90171 (2013)
Mark Ng
Search and Discovery.com
...Abstract: Efficency and Accuracy Enhancement for One-way Wave Equation Migration Through Improved Mapping Function in the Time-shift Imaging...
2013
Integrated Seismic Characterization and Reservoir Modeling of Neocomian Fluvial System for Water Injection: Tengiz Oil Field, Republic of Kazakhstan; #20163 (2012)
Elrad Iskakov, Steve Jenkins, Zhanat Kabdesheva, and Henry W. Posamentier
Search and Discovery.com
... 90 phase shift TVD TWT max 0 Sweetness can’t distinguish separate closely spaced sand layers and overestimates sand thickness Geobody Detection...
2012
Detail Illustration of Structural Discontinuities: Fault Intensity Attribute to Enhance the Fault Likelihood, Hessian Derivative and Fault Extraction
Aji Darma Maulana, Argya Hastubrata Basundara, Muhammad Hafiz Baharuddin, Syukron Ady Purnawiranto, Muhammad Alfateh Saifullizan
Indonesian Petroleum Association
... or phase shift, and shape. No 1 2 3 4 5 6 7 Parameter Wavelet Type Peak Frequency Scaling Factor Wavelet Length Phase Sampling Rate Phase Shift...
2023
Fluid Prediction from 3-D Seismic Data in Deepwater Sandstone Reservoirs: Applications from Cocuite Gas Field, Veracruz Basin, Southeastern Mexico
Fouad, Khaled, Jennette, David C., Soto-Cuervo, Arturo
GCAGS Transactions
... chosen for the analysis was an extracted wavelet of 100 ms operator length, 4 ms sample rate, and 64° phase shift. Seven seismic horizons were used...
2002
Fast Shear Azimuths in the Marcellus Shale from VSP and Crossed Dipole Sonic Data; #42161 (2017)
Steve Horne, David Rampton, John Crowe
Search and Discovery.com
... the equations of an ellipse written as: 𝑒𝑒 = 1 − cos 𝛽𝛽 1 + cos 𝛽𝛽 Equation 2 where β is a phase shift parameterizing the non-linearity...
2017
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)
... Prospecting, 50, 577–588, doi: https://doi.org/10.1046/j.1365-2478.2002.00341.x. Gazdag, J., 1978, Wave equation migration with the phase-shift method...
2023
Geophysical Investigations Within the Colorado Mineral Belt Using New Inductive Electromagnetic Instrumentation
Paul B. Alexander
Earth Science Bulletin (WGA)
...) readings were determined. The phase shift, profile shapes, and intensities reflected physical properties of the conductor. The theoretical effective...
1968
Hydraulic fracture aperture estimation using low frequency DAS and DSS in Austin Chalk and Eagle Ford Shale
Xiaoyu Zhu, Jonathan Ajo-Franklin, Julia Correa, Yuanyuan Ma, Jaewon Saw, Linqing Luo, Kenichi Soga
International Meeting for Applied Geoscience and Energy (IMAGE)
... Fiber Optic Sensing (DFOS) techniques utilize the phase shift of backscattered laser energy to detect changes in strain along the fiber. Distributed...
2023
Time-lapse electrical resistivity and induced polarization monitoring of a simulated ecosystem scale coastal flooding experiment
Moses B. Adebayo, Solomon Ehosioke, Efemena D. Destiny, Anya M. Hopple, Peter Regier, Patrick J. Megonigal, Nicholas D. Ward, Vanessa L. Bailey, Kennedy O. Doro
International Meeting for Applied Geoscience and Energy (IMAGE)
... inundation by measuring the resistivity and phase shift at 10 Hz for 9 hours, followed by 90 hours of system recovery observation. We inverted each...
2023
Seismic signatures of pore fluid mobility in heterogeneous reservoirs
Qiuzi Li, Brent Wheelock, Tuan Tran, Fadil Santosa
International Meeting for Applied Geoscience and Energy (IMAGE)
...ts in the recorded time-domain seismic signal for a Class II-a geologic scenario, showing a distinguishing gradual phase shift occurring between angl...
2023
Real-time and quantitative monitoring of CO2 injection with rapid-repeat time-lapse vertical seismic profile data
Xiaohui Cai, Kristopher Innanen, Qi Hu, Scott Keating, Matthew Eaid, Donald Lawton
International Meeting for Applied Geoscience and Energy (IMAGE)
... addressed using a cross-correlation scanning scheme. The DAS data measure the strain ratio, and thus it was converted to strain by -90o phase shift...
2023
Fast viscoacoustic forward modeling method based on U-net Fourier neural operator
Wenbin Tian, Yang Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... operations and facilitating the phase-shift process across the entire domain. The FNO method effectively emulates the mathematical-physical behavior...
2023
VSP Guided Reprocessing and Inversion of Surface Seismic Data
R. Gir, Dominique Pajot, Serge Des Ligneris
Southeast Asia Petroleum Exploration Society (SEAPEX)
.... A gross time-shift of 2.04 ms was computed from the cross correlation function. A weighted average phase rotation filter was filtered over spectral...
1988
Seismic Attribute Studies of the Flinders Amplitude Anomaly - Gulf of Papua
D. Schmidt
Papua New Guinea (PNG) Petroleum Convention Proceedings
... a ly and its h yd ro c arb o n p o te n tia l. Amplitude, phase, frequency, impedance. Amplitude versus Offset (AVO) and PreStack depth migration...
2000
Technique and Methods of Geophysical Exploration in Canada
A. I. Bogdanov
Petroleum Geology: A Digest of Russian Literature
.... By means of the helicopter the gondola can be towed at a height of 30 m above the surface. With this form of surveying not only is the angle of phase shift...
1959