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)

... attenuation, DAS-to-velocity transform, designature, and Q-phase and directivity corrections were applied before migrating the data. The resultant...

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

Land Seismic Source Study: ABSTRACT

William A. Schneider

AAPG Bulletin

... of characterizing and comparing land seismic sources under a variety of controlled conditions. This work was sponsored by 29 companies and one U.S. government...

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)

... in a vertical wellbore. We calculate travel times from seismic sources to all fiber sensors of the DAS array and construct differential travel time (DTT...

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

Search and Discovery.com

Overcoming signal processing challenges on a deep-water sparse OBN survey: A case study from the Gulf of Mexico

Matthew Salgadoe, Nigel Seymour, Hongyan Li, Di Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

...-source shooting to efficiently acquire all source lines before the node batteries became depleted. The six sources fired approximately every 7...

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

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

...Marine Seismic Sources: Part II: Air-Gun Arrays for Non Experts Lasse Amundsen, Martin Landrø recent G E O S C I E N C E E X P L A I N E D T O P I C...

Imaging of multiwell and multifiber walkaway DAS-VSP datasets in a CCUS demonstration project onshore Japan

Yuji Yamada, Shotaro Nakayama, Takuji Mouri, Manish Lal Khaitan, Philip Armstrong, Olga Podgornova

International Meeting for Applied Geoscience and Energy (IMAGE)

... was piecewise linear (Figure 1). A 43 second linear 6-80Hz sweep was applied using four vibrator units at each source point. Approximately 280 vibrator points...

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)

... sources. While the reduced environmental impact is highly attractive, an additional driver is the ability to control the characteristics...

Evaluating HD weathering surveys and surface seismic with DAS in a sand dune environment

Andrey Bakulin, Ezzedeen Alfataierge, Roman Pevzner

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Distributed Acoustic Sensing (DAS) offers a potentially more attractive alternative with less cost, provided the directivity challenge can be solved. DAS...

Multi-Source Design and Penta Source Case Study from the NWS Australia

Edward Hager, Phil Fontana

Petroleum Exploration Society of Australia (PESA)

... towed streamer acquisition has been largely restricted to just a few geometries which are determined by the streamer separation and number of sources...

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

... to remove the source ghost (Moldoveanu, 2000), but it requires flip-flop shooting of two sources at two different depths, which ultimately halves...

ABSTRACT: A New Gradient Operator with Applications in Geophysics, by Alfaraj, Mohammed; Wang, Yuchun E.; Luo, Yi; #90141 (2012)

Search and Discovery.com

Application of generalized radon transform migration to crosswell seismic geometry

Shujaat Ali, Olga Podgornova, Takashi Mizuno, Joel Le Calvez

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The survey was acquired with a regular 10 ft source and receiver spacing. A linear sweep of frequency band 30-600Hz was used. Both source...

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...

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

... to amplitude corrections used for seismic field data, a directivity correction specific to the physical model transducers was needed. The corrected...

DAS seismic monitoring of the shallow CO2 controlled-release experiment at the South West Hub In-Situ Laboratory

K. Tertyshnikov, R. Pevzner, B. Freifeld, L. Ricard, A. Avijegon

Petroleum Exploration Society of Australia (PESA)

... acquisitions, as there is no need to redeploy surface equipment apart from sources. Examples of the observation of small quantities of carbon dioxide using...

Acoustic modelling with elastic AVA effects

Robin P. Fletcher, James Hobro, James Rickett

International Meeting for Applied Geoscience and Energy (IMAGE)

... to near zero angle, and increase frequency, to invert for normal incidence “pseudo” reflectivity from the reflections. As a non-linear least-squares...

3D Seismic from Planning to Mapping

A. Kullerud, O. Nipen, H. E. Nordberg

Indonesian Petroleum Association

... in a timesharing situation, detailed coordinating of rigs, boats and other noise sources are necessary. A crucial part of the 3D data processing is migration...

AVA on communication cables: Principles and Examples from the North Sea

Ran Bachrach, Ali Sayed, Andrea Murineddu, Pilar Di Martino

International Meeting for Applied Geoscience and Energy (IMAGE)

... be extracted from S-DAS. Correcting for sensor directivity in S-DAS data is critical for accurately determining AVA and subsurface properties. Results...

Marine Seismic Data Acquisition: Part 7. Geophysical Methods

James F. Desler

AAPG Special Volumes

... the years, a large variety of different marine seismic energy sources have been used, but today two sources are used for almost all of the marine seismic...

Time-Lapse Seismic Monitoring of Individual Hydraulic Frac Stages Using a Downhole Distributed Acoustic Sensing Array

Gary Binder, Aleksei Titov, Diana Tamayo, James Simmons, Ali Tura, Grant Byerley, David Monk

Unconventional Resources Technology Conference (URTEC)

... velocity model is shown in green derived from a sonic log. Eikonal-based wavefronts are shown illustrating incident angles along the well from both sources...

Abstract: Towards Using Seismic Moment Tensor Inversions to Infer Reservoir Rock Properties; #90174 (2014)

Adam M. Baig, Ted I. Urbancic, Eric von Lunen, and Jason Hendrick

Search and Discovery.com

... of these fracture networks is very dependent on the rock properties of the formations: ductile formations are thought to generate more linear fracture...

Efficient acquisition and imaging of high-resolution seismic data with the continuous wavefields method

Tilman Klver, Torben Hy

International Meeting for Applied Geoscience and Energy (IMAGE)

... wavefields method allows the simultaneous operation of multiple sources in a seismic experiment and efficient separation of the wavefields emitted...

Determining the Correlation Between Vicker's Microhardness and Young's Modulus of Coal

Sanjib Mondal, Sijin Qian, Micah Nehring, Zhongwei Chen

Unconventional Resources Technology Conference (URTEC)

... sources, including journals, thesis, and books from the different geological locations across the globe. This includes, China (S. Chen, Yin, Jiang, Wang...