Seismic Foldout: FWI Imaging Under Complex Geological Anomalies

Adriana Citlali Ramirez, Simon Baldock, Stuart Fairhead, TGS

GEO ExPro Magazine

... the plume and improved the shallow illumination. The RTM of the raw hydrophone in Figs 3c and 3f clearly shows the imprint of the node spacing. Figure...

Imaging Subsurface Structures Under Gas Clounds by Multi-Component Technology

Xiaogui Miao, Loh Fong Cheen, Libo Zi, Jing Du, Magali Beele, Jacques Bonnafe, Natalia Anggriani, Gilles Vallon, Claudio Strobbia

Indonesian Petroleum Association

... in the schematic plot. The detailed processing steps will be discussed for the P- and PS-waves separately. The hydrophone (P) and geophone Z components...

Geophysical Innovation and Technology - Meeting Challenges of a Transition Zone OBC Survey in Malaysia (Paper A3)

S. K. Chandola, M. Zabuddin Zawawi, C. T. Law, R. Faizal, M. Adura, R. Roslan, J. Ismail, M. Asraff Ariff

Geological Society of Malaysia (GSM)

... survey. The data was also affected by the noise from vessel movement and drilling activities. b. Mud-roll affecting both the geophone and the hydrophone...

Seismic-Reflection Studies in Block Island and Rhode Island Sounds

Robert L. McMaster , Thomas P. Lachance , Louis E. Garrison

AAPG Bulletin

.... The signal source level for these chambers was between 95 and 115 db with a fundamental frequency range from 55 to 30 cycles per sec. The hydrophone array, 8 m...

ABSTRACT: DEEP SEISMIC EXPLORATION OF THE SOUTH CASPIAN BASIN: LITHOSPHERESCALE IMAGING OF THE WORLDS DEEPEST BASIN; #90024 (2004)

James H. Knapp, Camelia C. Diaconescu, John A. Connor, John H. McBride, Mike D. Simmons

Search and Discovery.com

... of the Absheron Ridge. Althouth recorded with standard industry parameters (airgun source of 3180 cm3 at 1900 psi, 25 m hydrophone spacing, 5400 m...

Abstract: Big Data - Planning for Success in Ultra-Deepwater Colombia Basin; #90312 (2017)

Andrew Mehlhop, Brian Frost

Search and Discovery.com

... ranging from 1,700 to 4,000m. State-of-the-art seismic boats were used towing 12 hydrophone cables with a spread 8.1 km long and 1.2 km wide. Shot point...

Abstract: The Quest from the Marsh out onto the Shelf and Beyond: How the Offshore Exploration Journey in the Gulf of Mexico Evolved and Led to a Global Revolution; #91205 (2023)

Rog Hardy

Search and Discovery.com

... process of placing geophones on the bottom and handling cumbersome, dangerous dynamite, seismic explorers developed the hydrophone cable and eventually...

Imaging Deep Gas Targets Across Congested Marine Production Areas, by Bob A. Hardage, Randy Remington, Michael Deangelo, and Khaled Fouad, #40190 (2006).

Search and Discovery.com

Seafloor Observatory Will Monitor Deepwater Gas Hydrate System, by Tom McGee and Bob A. Hardage, #40191 (2006).

Search and Discovery.com

Multi-Azimuth Seismic for Sub-Salt Targets, Bob Hardage, #40381 (2008)

Search and Discovery.com

Efficacious Use of Simple and Cost Effective Acoustic Flow Analyzer Measurement to Enhance Recovery and Improve Life Cycle of Wells, #42007 (2017).

Omar J. Alaref, Mahmound Saada, Mongi Abdelmoula, Marvin Rourke

Search and Discovery.com

... stationary measurements - Hydrophone CONS • Data is recorded in Amplitude and frequency • Usually combined with temperature to give a solid answer...

Monitoring Seafloor Instability Caused by the Presence of Gas Hydrate Using Ocean Acoustical and Geophysical Techniques in the Northern Gulf of Mexico, by Erika Geresi, Ross Chapman, Tom McGee, and Bob Woolsey; #90035 (2004)

Search and Discovery.com

4-D Seismic: A Powerful New Technology for Monitoring Steam Movements in Duri Field-Central Sumatra

S. D. Jenkins, M. F. Bee, J. H. Lyle, E. Murhantoro

Indonesian Petroleum Association

... that placing the shot 45 ft deep produced records with less ground roll and better reflection continuity. The level of repeatability of the hydrophone...

Synthetic Seismograms from Vibracores: A Case Study in Correlating the Late Quaternary Seismic Stratigraphy of the New Jersey Inner Continental Shelf

Dominic Esker , Robert E. Sheridan , Gall M. Ashley , Jeffrey S. Waldner , David W. Hall

Journal of Sedimentary Research (SEPM)

... of the GeopulseTM source pulse, the ghost reflection from the depth of the source and hydrophone, and the frequency response of the hydrophone, the effective...

Acoustic Properties of Sediment on the Southern Tonga Platform as Determined from Seismic Sonobuoy Studies

Jonathan R. Childs

Circum Pacific Council Publications

..., acoustic energy from a towed source (generally airguns) is detected by the hydrophone and radio-trans­ mitted back to the ship for recording and dis­ play...

Marine Seismic Acquisition: Efficiency and Environment, New Technologies Applied in Australia

Martin Bayly, Michelle Tham, Peter Watterson, Binghui Li, Kevin Moran

Australian Petroleum Production & Exploration Association (APPEA) Journal

... for the hydrophone elements, and the accelerometer components are placed at 0.625 m apart. This trial demonstrated that suitable signal-noise separation...

Transition–Zone Seismic Surveys in Southeast Asia

R. E. Sheriff, Palmer L. Greene, Harold Reaves

Indonesian Petroleum Association

.... The signature of each gun is monitored by a hydrophone placed one meter from the gun ports. The signature is used by a source-control computer...

Illuminating Resolution

Paul Wood

GEO ExPro Magazine

... kilometres. But offshore, early 3D surveys had to be acquired with seismic vessels that towed only a single airgun array source and cable of hydrophone...

Pushing the Boundaries „ Deployment of Innovative Drilling, Completion and Production Technology to Advance a Deep Coal Seam Play

Romi Branajaya, Peter Archer, Andrew Farley

Australian Petroleum Production & Exploration Association (APPEA) Journal

... fractures. A downhole hydrophone was installed into an existing infield vertical well, K4, to observe, measure and map the hydraulic fracture in real-time (24...

Velocity model building with a time shift objective function: Gulf of Mexico examples

Yi Yang, Ken Matson, Tadas Krupovnickas, Mark Huiskes, Rene-Edouard Plessix, Sijmen Gerritsen

International Meeting for Applied Geoscience and Energy (IMAGE)

...se, data processing for FWI is challenging and computationally intensive (Plessix and Krupovnickas, 2021). For this study, only hydrophone da...

Surface and Subsurface Morphology of Two Small Areas of the Blake Plateau (1)

T. R. Stetson, Elazar Uchupi, J. D. Milliman

GCAGS Transactions

... AX-58 hydrophone. Reflections detected by the hydrophone were recorded on a PGR at filter setting of 60-720 cycles per second. RESULTS Locations...

Direct observation of transient fluid pressure surge and resonance in a fluid-filled fracture

Yuesu Jin, Nikolay Dyaur, Yingcai Zheng

International Meeting for Applied Geoscience and Energy (IMAGE)

... needed to benchmark our Xfrac-S transducer. We choose AS1 scientific hydrophone from Aquarian Audio as the benchmark reference. AS-1 has a stable...

Improved Understanding and Interpretability Beneath the Complex Accretionary Section in West Timor, Indonesia, Via Marine Broadband Seismic and Beam Depth Migration

Mazin Farouki, Felice D'Alterio, Erika Gentile

Indonesian Petroleum Association

... of events beneath the accretionary section in comparison to legacy 2D lines acquired with conventional hydrophone-only streamer. Encouraged by these results...

Value of conventional PS-wave velocity analyses for PSDM of deep-water OBS data

James Gaiser, James Simmons, Moacyr de Souza Bezerra

International Meeting for Applied Geoscience and Energy (IMAGE)

... the receiver geometry of the OBC survey for the Jubarte monitoring survey. Blue circles indicate 4C sensor locations, which consist of a hydrophone and 3C...

Bridging the gap: Deep learning on seismic field data with synthetic training for building Gulf of Mexico velocity models

Stuart Farris, Robert Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

... and the legacy velocity model from the Tiber dataset. a) illustrates a 2D line of hydrophone recordings. b) presents the averaged power spectrum density...