Abstract: Elastodynamic FWI Efficiency Study With Partial Stacking in 2D; #90224 (2015)

Vladimir N. Zubov, Gary F. Margrave, and Michael P. Lamoureux

Search and Discovery.com

...-random noise. The numerical results achieved on the Marmousi model, solving independently for either density or bulk modulus parameters, suggests...

Abstract: An Analysis of the Benefits of 3D Pre-Stack Time Migration (Paper 11)

Peter Whiting

Geological Society of Malaysia (GSM)

... these residual difficulties. The benefits of 3D pre-stack time migration include improved stacking, attenuation of dipping noise, a more accurate...

Pluto 4D„Australias First 4D over a Gas Field is an Outstanding Success

Larry Tilbury, Andre Gerhardt

Australian Petroleum Production & Exploration Association (APPEA) Journal

... with repeatability, and towing the streamers at 20 m to minimise noise. Data was processed by CGG to pre-stack depth migration (PreSDM), took 12 months to deliver...

Least-squares reverse-time migration with angle gathers through point spread functions

Jianyong Bai, Orhan Yilmaz

International Meeting for Applied Geoscience and Energy (IMAGE)

... frequency band, and noise. In order to address the above issues, least-squares migration (LSM) has been developed and demonstrated its capability...

Shaping regularization by fast explicit diffusion

Sergey Fomel

International Meeting for Applied Geoscience and Energy (IMAGE)

...). In this example, random noise is added to a horizon extracted from seismic data and removed by smoothing. In order to preserve sharp edges...

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user

Search and Discovery.com

... significantly from interpretive input to velocities used for time and depth migration. With low fold in the near surface, low signal-to-noise ratios...

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user

Search and Discovery.com

... significantly from interpretive input to velocities used for time and depth migration. With low fold in the near surface, low signal-to-noise ratios...

Migration and Maturation of Hydrocarbons--Evidence from Fluid Inclusions: ABSTRACT

R. K. McLimans

AAPG Bulletin

...Migration and Maturation of Hydrocarbons--Evidence from Fluid Inclusions: ABSTRACT R. K. McLimans 1985 286 287 69 2. (February) Oil-filled fluid...

Rock Physics Inversion: A Montney Case Study, #41295 (2014)

James Johnson, Lisa Holmstrom, Satwant Diocee, Rob Tilson, Sean Johnson

Search and Discovery.com

... and random noise. Rank reduction methods also have the added advantage that they preserve amplitudes better than traditional FX/FXY methods and are therefore...

Data Enhancement from a 486-Channel Streamer

Bill Dragoset, Ken Larner

Pacific Section of AAPG

.... Under certain assumptions about the characteristics of signal and noise, the ratio of the signal power spectrum to random noise power spectrum...

Transfer learning seismic and GPR diffraction separation with a convolutional neural network

Alexander Bauer, Jan Walda, Dirk Gajewski

International Meeting for Applied Geoscience and Energy (IMAGE)

... and diffractive components while simultaneously removing random noise. We have trained the neural network for a total of 10 000 epochs with an initial...

Abstract: Optimising Reservoir Characterisation Through Seismic Data Conditioning: A Case Study of Block22/NCMA4, Trinidad; #90238 (2015)

Dale Baptiste, Russ Creath, and Vishal Nagassar

Search and Discovery.com

... sequence was developed to address signal to random noise, short period multiples, offset dependent frequency and amplitude loss, gather alignment...

Fault MLReal: A fault delineation study for the Decatur CO2 field data using neural network predicted passive seismic locations

Hanchen Wang, Yinpeng Chen, Tariq Alkhalifah, Youzuo Lin

International Meeting for Applied Geoscience and Energy (IMAGE)

... of Misplaced Noise: A time domain filter manages misplaced noise, such as random spikes or energy bursts. F-k Domain Filter of Averaged Envelopes...

ABSTRACT: Attenuation of Seismic Multiples Via Prestack Kirchhoff Depth Migration, by C. D. Manuel; #90909 (2000)

Search and Discovery.com

Abstract: GRAVITY MONITORING OF 4-D FLUID MIGRATION IN SAGD RESERVOIRS INCORPORATING SEDIMENTOLOGY; #90249 (2016)

E. Judith Elliott

Search and Discovery.com

...Abstract: GRAVITY MONITORING OF 4-D FLUID MIGRATION IN SAGD RESERVOIRS INCORPORATING SEDIMENTOLOGY; #90249 (2016) E. Judith Elliott GRAVITY...

Improving subsalt imaging using mode-converted waves and volumetric coherent noise attenuation in southern Gulf of Mexico

Riaz Alai, Nik Nur Halim C. Soh, M Shah B. Sulaiman, M. Iqbal Supardy, Kien Kok Lee, Sandeep Kumar, Syazwani Bt Suhairi, Christian Brinzer, Frederico Xavier de Melo, Hongyan Li, Iestyn Williams, Hugo Enrique Munoz Cuenca, Nolan Brand, Kate Glaccum, George Zhao, Saeeda Hydal, Khaled Abdelaziz, Emmi Sanchez Vargas

International Meeting for Applied Geoscience and Energy (IMAGE)

...Improving subsalt imaging using mode-converted waves and volumetric coherent noise attenuation in southern Gulf of Mexico Riaz Alai, Nik Nur Halim C...

Confirming Reservoir Geometry and Exploration Opportunity through 5D Interpolation PSDM in The Sub-ophiolite Zone, Banggai Sula Basin, Central Sulawesi

Mufied Ahmad, Dadang Ramdan, Yudi Herdiana, Abdullah Nurhasan, Arif Budi Mulyawan

Indonesian Petroleum Association

... Kirchoff’s pre-stack time migration (PSTM) produced mixquality data varying from fair to very poor. The signal-to-noise ratio in the northwestern...

Advanced Reprocessing and Imaging: Enhancing Legacy Surveys

Dominic Fell, Shane Westlake, Richard Patenall, Jennifer Badry

Petroleum Exploration Society of Australia (PESA)

... and random noise content that was typically of a similar strength to the underlying signal. The main wavelet processing stage contained a series of 1D...

Reducing Reservoir Characterization Uncertainties and Improving Field Recovery through Four-Dimensional Seismic Technology: An Integrated Four-Dimensional Seismic Interpretation Workflow

Jie Zhang, Dez Chu, Ganglin Chen, Kelly Wrobel, William L. Soroka

AAPG Special Volumes

... 3-D random noise attenuation ([3-D RNA] Canales, 1984), multiple attenuation, prestack time migration with different offset bin sizes, and frequency...

Imaging of Fractures and Faults inside Granite Basement Using Controlled Beam Migration (Geophysics Paper 5)

Don Pham, Jason Sun, James Sun, Qingbing Tang, Graeme Bone, Nguyen Truong Giang

Geological Society of Malaysia (GSM)

... preparation Prior to migration, the acquired seismic data was processed through linear noise removal, demultiple, and fold and offset regularization...

Microseismic imaging with three-component borehole sensors

Jakob B. U. Haldorsen

International Meeting for Applied Geoscience and Energy (IMAGE)

... shows the data from Figures 4, but with random background noise added. The total energy of the noise is 6% of the total energy in the recorded noise...

Seismic Imaging through Outcropping Carbonates: An Example from the Canadian Rocky Mountains, , #41533 (2015).

Yong Hua, Don C. Lawton

Search and Discovery.com

.... The results of the major approaches on statics, signal to noise ratio enhancement, and migration are illustrated. Seismic Data Description The seismic line...

Abstract: DMO and Migration: Imaging Tools in Geophysics

Craig J. Beasley

Geological Society of Malaysia (GSM)

...Abstract: DMO and Migration: Imaging Tools in Geophysics Craig J. Beasley 207 DMO AND MIGRATION: IMAGING TOOLS IN GEOPHYSICS CRAIG J. BEASLEY...

Abstracts: Fast Search Algorithms for Automatic Localization of Microseismic Events; #90173 (2015)

Ulrich Zimmer and Jeremy Jin

Search and Discovery.com

... the automatic event localization resulting in reliable phase identification and faster processing times. Introduction Automatic processing using migration...

A Practical Review of Migration Issues and Solutions; #40723 (2011)

Ian F. Jones

Search and Discovery.com

... equation. Mostly this created noise will be insignificant, but for some algorithms it will be worse than for others. For example, a Kirchhoff migration...