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The AAPG/Datapages Combined Publications Database

Showing 8,928 Results. Searched 200,630 documents.

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A Seismic 3C3D/4D Experiment in a Production Field in the Middle Magdalena Valley

William Agudelo, Saúl Guevara, Germán Ojeda, Gabriel Álvarez

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

...). This methodology is split into six phases. Phase I involved seismic modeling to characterize the seismic signal at the target and characterize...

2009

Effective Data Denoising and Imaging in the Sanga Sanga PSC Using CRS Approach

Michele Buia, Paolo Marchetti, Amalia Setoputri, Teguh Nugraha

Indonesian Petroleum Association

... lead to sub optimal results, in terms of trace fold (illumination) and in terms of achievable resolution and signal to noise ratio. Despite...

2008

Clari-Fi’: Broadband Data from Conventional Streamer Acquisition

Nic Woodburn, Tom Travis, Hassan Masoomzadeh, TGS

GEO ExPro Magazine

... of the signal output from marine airgun arrays – This attenuation is commonly ex­ pressed as effective Q, Qeff, which is a combination...

2012

New geological insights gained from the reprocessing, imaging, and interpretation of legacy seismic datasetsOffshore Mauritania

Kranthi Garidepalli, Elisabeth Gillbard, Simon Dean, Darren Judd, Nassim Kettouche, Paul Bellingham

International Meeting for Applied Geoscience and Energy (IMAGE)

... through to present day. Improvements in signal processing allow for cleaner, broader bandwidth datasets to be output. Modern demultiple techniques...

2022

Marine Vibrators: Part I: Early Developments and a Failure

Martin Landrø, Lasse Amundsen

GEO ExPro Magazine

..., and why it might be getting closer to reality. A Bit of History et al. (1960) published a paper entitled ‘Continuous signal seismograph’, where...

2018

Noise suppression and compressive sensing recovery with seismic-adapted DnCNN within RED

Nasser Kazemi

International Meeting for Applied Geoscience and Energy (IMAGE)

... and compressive sensing applications. INTRODUCTION Recently, deep learning gained a remarkable interest in the signal processing community (Krizhevsky et al...

2024

Extended Abstract: Reservoir Imaging and Characterisation: The Roller Field

Total Depth (Exploration Services) Pty. Ltd., Signal Estimation Technology Inc.

Petroleum Exploration Society of Australia (PESA)

...Extended Abstract: Reservoir Imaging and Characterisation: The Roller Field Total Depth (Exploration Services) Pty. Ltd., Signal Estimation...

1997

Production Logging: Part 9. Production Engineering Methods

James J. Smolen

AAPG Special Volumes

..., the operator chases the ejected radioactive material as it moves with the injected fluid. By noting the position, time, and size of the tracer signal...

1992

III. Processing For Preservation of Seismic Amplitudes

Norman S. Neidell

AAPG Special Volumes

... Principles and Techniques A. Signal Levels and The Seismic Trace The rediscovery of the exploration significance of seismic event amplitudes was one...

1979

Abstract: Noise and its Effect on Microseismic Event Locations; #90174 (2014)

Neda Boroumand and Henry Bland

Search and Discovery.com

... [email protected] Summary Noise can be considered anything that interferes with the desired signal. It is generally divided into coherent...

2014

A Preliminary Assessment of the Hydrocarbon Potential of Kerio Valley Basin: Gravity and Magnetic Interpretation; #10910 (2017)

Abiud W. Masinde, Cleophas W. Simiyu, Innocent K. Murunga, George Muia, Aaron K. Waswa, Justus Barongo

Search and Discovery.com

... complicated. Tilt derivative of the magnetic grid was used to estimate depth to basement. The residual analytic signal anomaly map derived from...

2017

Land, Marine and Transition Zone Seismic Operations in PPL 123, Papua New Guinea

Alan G. Fenwick, Robert J. Paul

Papua New Guinea (PNG) Petroleum Convention Proceedings

... a digital bathymetry map which was gridded and contoured. Selective Avail­ ability was not being implemented in the G.P.S. satellite signal at the time...

1993

Paleoenvironmental and Carbon-Oxygen Isotope Record of Middle Cambrian Carbonates (La Laja Formation) in the Argentine Precordillera

Fernando J. Gomez, Neil Ogle, Ricardo A. Astini, Robert M. Kalin

Journal of Sedimentary Research (SEPM)

... controls could have in part altered the original isotopic signal. Aigner, T., 1985, Storm depositional systems: dynamic stratigraphy in modern and ancient...

2007

A Method for Reducing the Effects of Base Plate Distortion

S. A. Sorkin

Pacific Section of AAPG

... of base plate distortion can be serious, especially when using a down sweep. Any harmonic frequencies present in the signal being cross-correlated...

1972

Detection of Seismic Phases from a Major Earthquake on a Local Seismogram

Che Noorliza Lat

Geological Society of Malaysia (GSM)

... across the world if the energy released is sufficient to transmit the signal (Bolt, 1982). This paper is a descriptive seismological exercise to see...

2002

Abstract: Curvelet Denoising: Application to Crustal Reflection Data; #90171 (2013)

Jounada Oueity, Vishal Kumar, Ron Clowes and Felix Herrmann

Search and Discovery.com

... Columbia, Vancouver, BC, Canada V6T 1Z4 Summary The separation of signal and noise is a key issue in seismic data processing. By noise, we refer...

2013

Abstract: An Experiment to Detect Nonlinear Seismic Responses on Exploration/Monitoring Scale; #90187 (2014)

Kris Innanen, Gary Margrave, and Malcolm Bertram

Search and Discovery.com

... to detection: the fact that the vibrators are adaptive, and therefore, in effect, could impose an apparent degree of nonlinearity on the signal. We do...

2014

Abstracts: Accurate Declipping Hybrid Algorithm for Ground Penetrating Radar Data; #90173 (2015)

Akshay Gulati and R. J. Ferguson

Search and Discovery.com

... is not representing the true peak amplitude of the returning signal. Generally adopted methodology under these circumstances is trace normalization. In trace...

2015

Long Period Long Duration Seismic Events During Hydraulic Stimulation of a Shale Gas Reservoir, #40761 (2011)

Indrajit Das, Mark D. Zoback,

Search and Discovery.com

... s Identifying LPLD events: 1) Band-pass filtering method Axial Transverse 1 Transverse 2 Original Signal 60 seconds 60 seconds 60 seconds 60...

2011

Appendix III: High-Sensitivity Aeromagnetic Analysis

William C. Pearson

Rocky Mountain Association of Geologists

... that has been filtered with a second-vertical derivative (SVD) operator. The SVD filter dampens the low-frequency signal (believed to be sourced from...

2015

Marine Statics

Chiem Boon Hong

Geological Society of Malaysia (GSM)

.... As a simple illustration, Fig.lA shows schematically a shotpoint fired at position S and the reflected signal being recorded by receivers RI, R2...

1987

Broadband Seismic Technology and Beyond: PART X: IsoMetrix … Isometric Sampling

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... sampler. The same thing happens in seismic data acquisition between the spatial sampler and the spatial signal (or wavefield) being sampled. Sampling...

2014

Different Approaches of Combining Geophone and Hydrophone Data From OBC Seismic at Bintuni-Berau Bay, Papua

Tepy Septyana, Yayat Supriatna, Supriyono, Greg Schurter, James Keggin, Jean-Jacques Chameau

Indonesian Petroleum Association

...). Since the highest signal to noise ratio is generally achieved by CMP stacking, the post stack domain was suggested as the optimal stage for PZ...

2010

Non-Tectonic Structures Caused by Drape and Differential Compaction Over Lenticular Sand Bodies, Southern Sacramento Basin

Victor B. Cherven, Peter J. Fischer

Pacific Section of AAPG

... productive in the Millar gas field. This sand body is nonproductive in most wells, but the signal Stein-Dauenhauer #1 was drilled on the isopach axis...

1992

Shale Gas OVT Seismic Data Prestack Trace-Gather Optimization Technique

Yusheng Zhang, Gang Yu, Xing Liang, Benjing Liu, Guangming Hu

Unconventional Resources Technology Conference (URTEC)

... inversion. URTeC 2153634 2 (a) (b) (c) Figure1 The problems on pre-stack gathers (a)Non-continuous events and low signal-to-noise ratio caused...

2015

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