Specialized processing of a massive distributed acoustic sensing (DAS) 3D VSP in a producing well

Ali Sayed, Francesca Twynam, Ran Bachrach, Philippe Caprioli, Marcus Holloway, Qingsong Li, Reetam Biswas, Daniel Tebo, Sam Buist

International Meeting for Applied Geoscience and Energy (IMAGE)

...requency signal and removing the source ghost from the data without introducing ringing or over-amplifying the low frequency noise (Figure 4). A combi...

Broadband Seismic Technology and Beyond: Part VIII: BroadSeis in Exploration

Lasse Amundsen, Martin Landrø, Vetle Vinje, Jo Firth

GEO ExPro Magazine

... in the shallow detail and in the fractured basement. Ghost-Free Data As discussed in GEO ExPro, Vol. 11, No.1, BroadSource is a synchronized source with two gun...

A New Seismic Method to Significantly Improve Deeper Data Character and Interpretability

Andrew Long, Guillaume Cambois, Gregg Parkes, Anders Mattsson, Terje Lundsten, Mazin Farouki

Indonesian Petroleum Association

... acquisition has been tested in the southern Browse Basin during 2008 in an effort to remove both source ghost and receiver ghost effects from towed streamer...

Abstract: Physical Modeling for Azimuthal AVO Over a Simulated Fractured Medium; #90174 (2014)

Faranak Mahmoudian, Gary F. Margrave, and Joe Wong

Search and Discovery.com

... the overlapping of the primary and ghost events. The picked reflection amplitudes required corrections to make them suitable for an AVAZ study. In addition...

Abstract: Experimentally Achieving Borehole Radar Antenna Directivity in the Time Domain in the Presence of Strong Mutual Coupling, by Declan Vogt and Teboho Nyareli; #90082 (2008)

Search and Discovery.com

Marine Seismic Sources: Part II: Air-Gun Arrays for Non Experts

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... are caused by the source ghost. Note that the primary-to-bubble ratio is frequency dependent. source directivity In seismic surveying, air-gun arrays...

Modern Marine 3D Seismic Acquisition - Technical Considerations

Chris Walker

Petroleum Exploration Society of Australia (PESA)

.... The resultant information is plotted in a polar form, similar to that used for displaying the directivity response of the seismic source and a typical...

Abstract: Is Magnitude the Parameter of Choice for Induced Seismicity Regulations?;

Alexandros Savvaidis, Pierre-Francois Roux, Florentia Kavoura

Search and Discovery.com

..., peak ground motion is critically controlled by parameters such as but not limited to site condition, source directivity, distance, and source...

Value of marine vibrators for effective frequency-dependent spatial sampling of seismic wavefield

Arash JafarGandomi, Aparajita Nath, Sergio Grion

International Meeting for Applied Geoscience and Energy (IMAGE)

... that maximizes constructive source ghost interference and minimizes rough-sea effects (JafarGandomi et al., 2020). The use of diverse frequency bands...

High-resolution imaging using least-squares migration in the image domain (LSMi) for a marine distributed acoustic sensing (DAS) 3D-VSP

Ali Sayed, Francesca Twynam, Ran Bachrach, Maud Cavalca, Leo Leon, Maria Shadrina, Qingsong Li, Reetam Biswas, Daniel Tebo, Sam Buist

International Meeting for Applied Geoscience and Energy (IMAGE)

... 3D-VSP data due to its axial nature. An in-well DAS array was interrogated during the acquisition of an ocean-bottom node (OBN) survey over the Atlantis...

Abstract: Aspects of the Quaternary Geology of the San Fernando Valley, California, by J. C. Tinsley III; #90904 (2001)

Search and Discovery.com

Anisotropy analysis from 3D VSP surveys acquired at Otway site

Sofya Popik, Andrej Bona, Roman Pevzner

Petroleum Exploration Society of Australia (PESA)

... as a source. Seismic image significantly depends on the quality of velocity model used for imaging. In cases when anisotropy is present, its effect cannot...

Direction of Crustal Movements Indicated by Earthquake Data: ABSTRACT

William Stauder

AAPG Bulletin

... of other methods, including the use of S waves and the application of surface waves in determining the directivity, dimensions, and initial phase...

How Can We Reduce the Environmental Impact of Marine Seismic Surveys?

Andrew Long, Mickael Bastard, Endrias Asgedom, Jens Fredrik Wisløff, Magnus Christiansen

Australian Petroleum Production & Exploration Association (APPEA) Journal

..., three-dimensional variation that varies as a function of source emission azimuth and angle measured from vertical (the ‘source directivity...

ABSTRACT: THERMAL EVOLUTION OF ORGANIC MATTER AND SECONDARY HYDROCARBON GENERATION FROM UPPER PALEOZOIC COAL MEASURES IN HUABEI AREA

Liquan Zheng, Xianqing Li, Ningning Zhong, Xia Lu, Xiangkun Guo

The Society for Organic Petrology (TSOP)

... the directivity of coal rank strip in south of North China becomes more obvious. Its long axis occurs a line of Jiyuan, Zhengzhou and Yongcheng...

Seismic Frequency Bandwidth Constraints in Deepwater Locations

Andrew Long, Iain Buchan

Indonesian Petroleum Association

..., 3/12 – 206/276 filter settings (Hz/dB per octave), 2 ms sample rate 28° C water temperature Note that any source or receiver directivity effects...

ABSTRACT: Restoring High Resolution in Surface Seismic Data; #90051 (2006)

Khalid Alrufaii, Kangan Fang

Search and Discovery.com

... exploration and development efforts. The resolution of seismic data is affected by many factors such as acquisition layout, strength and directivity...

Land Seismic Source Study: ABSTRACT

William A. Schneider

AAPG Bulletin

... spectra, source repeatability, source directivity, and intensity levels from downhole measurements, (2) comparison of surface-wave noise-generation...

3D installation of fiber cables for acquiring 3C DAS array data

Yingping Li, David Li, Lianjie Huang, Yingcai Zheng

International Meeting for Applied Geoscience and Energy (IMAGE)

... directivity. Since a source azimuth and incident angle can be determined by the DAS CCC array, we can correct for the effects of fiber directivity...

Amplitude Versus Offset (AVO) Analysis: Part 7. Geophysical Methods

Allan T. Long, R. C. Anderson

AAPG Special Volumes

.... These corrections are distributed among the surface terms of source, receiver, and offset, plus a single subsurface (CDP or geological) term...

Restoring High Resolution in Surface Seismic Data

Search and Discovery.com

Acoustic modelling with elastic AVA effects

Robin P. Fletcher, James Hobro, James Rickett

International Meeting for Applied Geoscience and Energy (IMAGE)

... effects with terms that control linearized elastic reflection amplitude effects. We focus on the modelling and do not detail its potential use within FWI...

Abstract: Remote Classification of Seabed Types Derived from Interferometric Sonar Data, by S. Hadden and C. Green; #90923 (1999)

Search and Discovery.com

Thermodynamic Basis for Regularity in the Distribution of Oil and Gas Fields

M. A. Lipovskiy

Petroleum Geology: A Digest of Russian Literature

... of formation of pools and from the point of view of possible chemical processes of formation of oil and gas from source material. This problem has not yet...

Marine Seismic Data Acquisition: Part 7. Geophysical Methods

James F. Desler

AAPG Special Volumes

... seismic data acquisition techniques and capabilities have advanced at a rapid pace over the past few years. Today the typical marine seismic source is much...