Incorporating estimates of data covariance in elastic FWI to combat random and correlated noise

Luping Qu, Scott Keating, Kristopher A. Innanen, Xin Fu

International Meeting for Applied Geoscience and Energy (IMAGE)

..., and Xin Fu, University of Calgary SUMMARY As field data applications of FWI increase, dealing with both random and coherent noise in seismic data...

Seismic Data Acquisition and Processing in the Midway-Sunset Oil Field

C. R. Willingham, A. S. Wylie Jr., D. J. Underwood

Pacific Section of AAPG

... production equipment. This noise consists of coherent and incoherent wave trains created by several thousand pumping wells, steam lines, steam generators...

Low-frequency data reconstruction for full-waveform inversion

Ramzi Djebbi, Maiza Bekara, Jaime Ramos-Martinez, Nizar Chemingui

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity model. However, the Signal-to-Noise-Ratio (SNR) at low frequencies is often bad and it is not always possible to improve it with conventional...

Abstract: Rank Reduction Processing of 3-D Prestack Seismic Data for the Geomechanical Inversion of an Unconventional Reservoir and its Caprock, Moncton Basin, Canada; #90310 (2017)

Mathieu J. Duchesne, Gilles Bellefleur, Nicolas Pinet, Virgina I. Brake

Search and Discovery.com

... irrelevant ranks corresponding to random noise and coherent dipping events that obscure reflections on prestack time migrated (PSTM) AVO gathers...

Pematang Lantih Vibroseis 3D Seismic Survey: An Innovative Technique Applied in Sumatra

Adde Avrino, Jacques Bonnafé-Clauss, Susanto S. Wibowo, Jeres R. Cherdasa, Rimbawan Prathidina, Nobuhito Shimada, Stevanus P. Silaban

Indonesian Petroleum Association

... generated noise and vehicle noises as ambient noise. The ground rolls removal was challenging. Even spatial sampling in shot domain was regular, coherent...

Enhance Seismic Quality With A Fast, Robust and Economic Solution Using Broadband Technology

Munji Syarif, Vania Iqsora, Adde Avrino, Agus Abdullah

Indonesian Petroleum Association

.... Broadband processing result shows better continuity, sharper events, preserving geology, higher frequency and lower coherent noise level. The frequency...

Q-land Enters Australia: Overview of a Seismic Survey Pilot Study in the Cooper Basin

Tim Bunting

Petroleum Exploration Society of Australia (PESA)

... / / / / / / / / / / - FrequencytHzl Fig. 2. Synthetic sweep response: the O-Land pilot study MD Sweep is shown in blue and the traditional Cooper Basin linear sweep...

Deterministic and Statistical Wavelet Processing

Lee Lu

Southeast Asia Petroleum Exploration Society (SEAPEX)

... (except in certain cases where coherent noise is known to be present and is usually removed by two-dimensional filtering before further wavelet processing...

Abstract: Challenges in AVO Compliant Processing of Multiple Surveys; #90171 (2013)

Greg Cameron, Josef Heim, Frederik Horn, and Andy Dyke

Search and Discovery.com

....) and exhibit characteristic coherent noise trends. Furthermore the random noise of each survey depends on environmental conditions and ambient noise...

Abstract: Challenges in AVO Compliant Processing of Multiple Surveys; #90171 (2013)

Greg Cameron, Josef Heim, Frederik Horn, and Andy Dyke

Search and Discovery.com

....) and exhibit characteristic coherent noise trends. Furthermore the random noise of each survey depends on environmental conditions and ambient noise...

Abstract: Using Enhanced HRAM Anomalies to Correlate Faults between 2-D Seismic Lines; #90213 (2015)

Serguei A. Goussev, Lisa A. Griffith, John W. Peirce, and Andreas Cordsen

Search and Discovery.com

..., closely correlate with linear magnetic anomalies on the filtered HRAM map. These fault-associated magnetic anomalies can be correlated within the 2-D...

Time Stratigraphy from Seismic Data: ABSTRACT

Peter R. Vail, John B. Sangree

AAPG Bulletin

... is limited by the resolution of the seismic system and is somewhat complicated by the need to exclude unwanted signals, such as coherent noise patterns...

Abstract: Dynamically Constrained 4D Prestack Inversion, by T. Blanchard and P.D. Thore, #90188 (2014)

Search and Discovery.com

Abstract: Seismic Data Preconditioning for Improved Reservoir Characterization (Inversion and Fracture Analysis); #90187 (2014)

Darren Schmidt, Alicia Veronesi, Franck Delbecq, and Jeff Durand

Search and Discovery.com

... to such advanced analyses. Frequency content, random and coherent noise, amplitude-preserving processing and gather flatness must be addressed...

Verification of dynamic strain field measurements made with DAS during active-source vibration by quantitative comparison to geophones

Peter G. Hubbard, Joseph Vantassel, Brady R. Cox, James W. Rector, Michael Yust, Kenichi Soga

International Meeting for Applied Geoscience and Energy (IMAGE)

...-coherent optical time domain reflectometry (φ-OTDR) style DAS units make measurements that are consistent in phase with measurements made by other...

Acquisition Footprint Removal for Better Fault and Curvature Attributes, by Satinder Chopra, Kurt J. Marfurt, and Somanath Misra, #40719 (2011).

Search and Discovery.com

Considerations in Azimuthal Processing and Velocity Inversion for Unconventional Plays

Michael J. Perz, William Keller, Victor Kriechbaum

Unconventional Resources Technology Conference (URTEC)

... piecewise on each spoke. Though not apparent in Figure 1, in other parts of our test subvolume we observed strong organization of linear noise on each azimuth...

ABSTRACT: Use of Interbed Multiple Prediction in Acoustic Impedance Modeling: Example from an Eolian Dune Reservoir, Saudi Arabia; #90051 (2006)

Brian P. Wallick, Harold Triebwasser, Gael Lecante

Search and Discovery.com

... product is an AI model which, if properly calibrated, produces a residual error that consists largely of coherent, interbed multiple noise...

Use of Interbed Multiple Prediction in Acoustic Impedance Modeling: Example from an Eolian Dune Reservoir, Saudi Arabia

Search and Discovery.com

Abstract: Compressive Sensing Challenged; #91204 (2023)

Jan de Bruin

Search and Discovery.com

... signal from under-sampled data, but when it comes to land seismic data it is more about reconstructing coherent noise (on land mostly groundroll) while...

Geological Interpretation of Seismic Data in Color – A New Approach

Search and Discovery.com

Preliminary Analysis of the Fractured Hunton Limestone, Oklahoma

Evan Staples, Kurt Marfurt, Ze’ev Reches

Oklahoma City Geological Society

...-to-noise ratio due to limited fold during seismic acquisition. However, the rest of the data set appears to have high signal-to- noise ratio and is ideal...

Q Marine

PESA Staff

Petroleum Exploration Society of Australia (PESA)

... librated high fidelity hydro- The most significant unwanted noise perturbation affecting marine towed streamer data is swe ll noise. The sea swell...

Applications of Kirchhoff Least-Squares Migration: Towards Reservoir Imaging; #42183 (2018)

Francesco Perrone, Graham Roberts, Lorenzo Casasanta, Andrew Ratcliffe, Arash Jafargandomi, Karen Purcell

Search and Discovery.com

... to reduced migration artifacts/noise in the underlying seismic data. The denoised and more coherent AVO gradient allows us to identify a clearer trend...

A self-attention enhanced encoder-decoder network for seismic data denoising

Stefan Knispel, Jan Walda, Ruediger Zehn, Alexander Bauer, Dirk Gajewski

International Meeting for Applied Geoscience and Energy (IMAGE)

... the subsurface, it is also contaminated with disturbing recorded energy, coherent and random noise. A crucial step in seismic data processing, therefore...