Abstract: Estimation of Dispersive Parameters of Surface Wave Using the Generalized S Transform; #90187 (2014)

Roohollah Askari and Robert J. Ferguson

Search and Discovery.com

... is highly dispersive, and a signal has a wide band of frequencies, there is a high uncertainty in the estimated amplitude and phase spectra at high...

Abstract: Cost Efficient Acquisition to Reduce Coarse Land 3D Line Spacings Through Beyond Nyquist Interpolation and Wavefield Reconstruction for Signal and Noise; #90187 (2014)

Bill Goodway

Search and Discovery.com

... for Signal and Noise; #90187 (2014) Bill Goodway AAPG Search and Discovery Article #90187 © CSPG/CSEG/CWLS GeoConvention 2013, Integration: Geoscience...

Monitoring Hydraulic Fracture Flowback in the Permian Basin Using Surface-Based, Controlled-Source Electromagnetics

Drew Jones, Chester Pieprzica, Oscar Vasquez, Justin Oberle, Peter Morton, Santiago Treviño III, Mark Hickey

Unconventional Resources Technology Conference (URTEC)

... neighboring wells. The transmitted signal was a broadband pseudo-random binary sequence. To record the frac fluid response signal, we placed an array...

Got noisy impedance? Try this

Jingfeng Zhang, Reetam Biswas, Dhananjay Kumar, Matt Walker, Pedro Paramo, Kevin Wolf, Anar Yusifov, Sophia Gerth, Jeffrey Winterbourne, Qiang Liu, Xingchao Liu, York Zheng, Ryan Warnick

International Meeting for Applied Geoscience and Energy (IMAGE)

... angles, typical seismic signal has a narrower bandwidth, even after spectrum balancing. Third, although the sample-by-sample based least squares...

S/N RATIO AND BANDWIDTH CONSIDERATIONS WHEN UTILIZING SEISMIC DATA IN EXPLORING FOR SUBTLE TRAPS - EXAMPLES FROM THE KNOX PLAY

Edward R. Tegland, Exploration Development, Inc., S. Pikes Peak Dr., Parker, CO Patrick H. Bygott, Exploration Development, Inc., S. Pikes Peak Dr., Parker, CO

Ohio Geological Society

..., CO 1999 72 80 The concepts of bandwidth and SIGNAL TO NOISE (S/N) ratio are highly interrelated and for the most part...

Aiding self-supervised coherent noise suppression by the introduction of signal segmentation using blind-spot networks

Sixiu Liu, Claire Birnie, Tariq Alkhalifah, Andrey Bakulin

International Meeting for Applied Geoscience and Energy (IMAGE)

...Aiding self-supervised coherent noise suppression by the introduction of signal segmentation using blind-spot networks Sixiu Liu, Claire Birnie...

Viability of long-short term memory neural networks for seismic refraction first break detection … a preliminary study

Tasman Gillfeather-Clark, Eun-Jung Holden, Daniel Wedge, Tom Horrocks, Carlie Byrne, Matthew Lawrence

Petroleum Exploration Society of Australia (PESA)

... signal to noise is high. Broadly the approaches of seismic first break detection can be partitioned into algorithmic and machine oriented. I use...

A simultaneous wavefield separation and denoising approach for vertical seismic profile using geometric mode decomposition

Salman Abbasi, Jubran Akram, Andres Chavarria, Vikram Jayaram, Iftekhar Alam, Dmitry Borisov, Yanwei Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... sectors. The separation of downgoing and upgoing wavefields is an important step in VSP signal processing (Gao et al., 2014). The recorded VSP...

Abstract: Importance of Pre-Frack Site Surveys and Broadband Seismometers to Microseismic Monitoring; #90174 (2014)

N. Ackerley and N. Spriggs

Search and Discovery.com

..., and are more susceptible to cultural and other sources of surface noise. The problem of detectability of small events can be addressed in terms of signal...

Feasibility of 4D Seismic Monitoring for CO2 Injection in Open Versus Closed Depleted Gas Fields: Goldeneye and Hamilton Fields

Shi Yuan Toh, Colin MacBeth, Jorge Landa

Carbon Capture, Utilization and Storage (CCUS)

... found that CO2 injection into open systems demonstrates more pronounced seismic signal. Fluid contact movement within these systems generates...

Chapter 1: Introduction

Tom Wittick

North Texas Geological Society

... retain the amplitude and phase information in the seismic data. In the late 1960’s digital recording and signal processing were first used by some...

Introduction

Abilene Geological Society

... information in the seismic data. In the late 1960's digital recording and signal processing were first used by some of the major oil companies. Digital...

Cascaded Sweeps- A Method to Improve Vibroseis Acquisition Efficiency: A Field Test

M. Benabentos, F. Ortigosa, N. Moldoveanu, P. Munoz

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... a function of the signal-to-noise ratio in the area. For instance, if, based on evaluation of the harmonic energy in a certain area, it is considered nd rd...

Seismic imaging profile noise suppression based on self supervised deep learning: a case study in the Yellow Sea

Qiang Xu

International Meeting for Applied Geoscience and Energy (IMAGE)

... with the interpretation and analysis of seismic signals. In past research, various methods, including traditional filtering approaches and signal processing...

Application of time-adaptive FWI on onshore data in Bohai Bay Basin

Wan Xuejuan, Luo Wenshan, Wang Yongming, Gong Ting, Li Daoshan, Chen Yuansheng

International Meeting for Applied Geoscience and Energy (IMAGE)

... the stability of FWI with inaccurate initial models. TA-FWI utilizes a dynamic time adjustment method to estimate time-shifts, which can handle low signal...

Q Marine

PESA Staff

Petroleum Exploration Society of Australia (PESA)

... have a significant detrimental effect on signal bandwidth and fidelity. Q-Marine allows single sensor recording which allows the extension of basic...

Marine Seismic Data Acquisition: Part 7. Geophysical Methods

James F. Desler

AAPG Special Volumes

... oscillations are of different periods and therefore tend to cancel one another while the initial pulses reinforce. Thus, a signal approaching an impulse...

Abstract: Point Receiver Acquisition and Processing for Arctic Near Surface Challenges; #90171 (2013)

C. Strobbia, A.Glushchenko, A. Laake, P.L.Vermeer, S. Papworth, and Y. Ji

Search and Discovery.com

... and large lateral velocity variations affect the reflected signal and induce statics (Figure 4). These short scale lateral variations can be identified...

Abstracts: Bringing Seismic Ideas to Acoustic Logging; #120181 (2015)

Partha Biswas & Shreya B. Ley

Search and Discovery.com

... undetected. For this last issue, we need look no further than seismic and microseismic techniques for guidance. Due to issues with signal attenuation...

Abstract: A Comparison of Trenched Distributed Acoustic Sensing (DAS) to Trenched and Surface 3C Geophones … Daly, Manitoba, Canada; #90224 (2015)

Rob Kendall

Search and Discovery.com

... clear reflection, refraction and coherent noise signal but at a lower signal-to-noise ratio than the geophone data. It was also noted that for our...

Abstract: Acquiring Low Frequencies : Sweeps, Sensors, Sampling and Stories; #90224 (2015)

Olivier Winter, Anna Leslie, and Forest Lin

Search and Discovery.com

.... It is equivalent to state that to achieve the same signal to noise ratio over the shared bandwidth, one should double the sweep length for a 1.5 Hz...

Expanding Foothills Exploration in Muskwa-Kechika: An Integrated Approach using full Tensor Gravity Gradiometry, Magnetic Gradiometry, LIDAR, Digital Mapping, and GIS, #41538 (2015).

Mark A Davies, Joseph Barraud, Neil Dyer, and Wayne Wheeler

Search and Discovery.com

... (Figure 4) show the Gzz signal before and after terrain correction. The application of a detailed terrain correction is highly important given...

Australian Insights into Streamer Technology Innovations

Andrew Long

Petroleum Exploration Society of Australia (PESA)

... of streamers content appropriate to streamers towed closer Spectral enhancement in processing of high towed simultaneously at different depths; to t he...

Abstract: A study of Spectral Broadening Methods for Multicomponent Data; #90174 (2014)

Chuck Ursenbach, Peter Cary, and Mike Perz

Search and Discovery.com

.... Their method can generate some enhancement of the frequency content of the PS data after it is squeezed to PP time but this is not surprising since...

Analysis of Spatial Order in Sandstones II: Grain Clusters, Packing Flaws, and the Small-Scale Structure of Sandstones

Christopher M. Prince, Robert Ehrlich, Yannick Anguy

Journal of Sedimentary Research (SEPM)

... be recognized as major textural elements in all sands and sandstones, even those with macroporosity as low as 5%. Not only is the depositional "signal...