Editor's Note -Recollections

William R. Brice

Petroleum History Institute

... documented stories told second hand. The narratives may be from people who worked on the drill rigs, to off-shore diving, to operating a gasoline service...

ABSTRACT: High Temperature Polymetallic Sulfide Deposits in Back Arc Environment: Lau Basin SW Pacific, by Y. Fouquet, U. Von Stackelberg, P. Herzig; #90097 (1990).

Search and Discovery.com

Application of Full-Waveform Inversion for Shale Diapirs and Carbonate Rafts in the U.S. Central Gulf of Mexico

Search and Discovery.com

Tank Experiments on the Sorting Of Beach Material During Cusp Formation

N. C. Flemming

Journal of Sedimentary Research (SEPM)

... waves breaking for as much as 48 hours on a beach of pebbles and sand produced cusps in 8 cases. Seven runs produced cusps which changed continuously...

Structural and time-lapse imaging through gas clouds via FWI at Eldfisk field, North Sea

Zhengxue Li, Leila Bencherif-Soerensen, Per Gunnar Folstad, Brian Macy, Simon Shaw, Baishali Roy

International Meeting for Applied Geoscience and Energy (IMAGE)

.... An emphasis was placed on maximizing the depth penetration of FWI by utilizing the complete wavefield, which included both diving waves and reflection events...

Advanced Deblending Scheme for Independent Simultaneous Source Data

M. Wang, Z.H. Chen, C. Chen, F.C. Loh, T. Manning, S. Wolfarth

Petroleum Exploration Society of Australia (PESA)

... respectively, it can be observed that the weak diving waves are well preserved which is important for FWI work. Figure 3c displays the SNR map used...

Ice Rafting of Fine-Grained Sediment, a Sorting and Transport Mechanism, Beaufort Sea, Alaska

Peter W. Barnes, Erk Reimnitz, Dennis Fox

Journal of Sedimentary Research (SEPM)

..., Virginia, The Arctic Inst. of North America, p. 301-351. REIMNITZ, E., AND DUNTON, K. H., 1979, Diving observations on the soft-ice layer under the fast...

Hurricane-Induced Sediment Transport in Open-Shelf Tropical Systems--An Example from St. Croix, U.S. Virgin Islands

Dennis K. Hubbard

Journal of Sedimentary Research (SEPM)

...) and waves 6-7 m in height accompanied the storm. Along the north coast, wave height was lower (ca. 3-4 m) due to the leeward position of the shelf...

Hybrid streamer/sparse OBN imaging offshore Norway

Chris Walker, Zhengzheng Zhou, Xi Li

International Meeting for Applied Geoscience and Energy (IMAGE)

..., are too slow below about 3.5km of depth, and need to be replaced by a velocity gradient estimated from the far offset diving waves. From...

Aspiration or expiration: hypoxia and the interpretation of fish predation in the fossil record

D. Ross Robertson, Carole C. Baldwin, David Bellwood, Richard Pyle, William Smith-Vaniz, Luke Tornabene, James L. Van Tassell

PALAIOS

..., with the recipients in such cases including herbivores as well as large-mouthed planktivores and predators. In other instances the churning action of waves led...

Seismic Foldout: Quad 35 Hybrid MC3Ds: Innovative multi-parameter FWI for near field exploration

Tor Akermoen, Jeroen Hoogeveen, GEOEX MCG, Kristen Berli, Seismic Partner, Tom Rayment, Percy Mellar

GEO ExPro Magazine

... is ideal for velocity model building using diving waves in Full Waveform Inversion (FWI) and lends itself to new and innovative Figure 4: Example...

Reveal The Velocity Anomalies in Complex Overburden and Enhanced The Imaging through Shallow Gas: A Case Study in SisiNubi Mahakam, Indonesia

Annas Astuti, Yohanes Kristomo, Bee Jik Lim, Ginanjar Satria, Natalia Anggriani

Indonesian Petroleum Association

... all early arrivals including diving waves and refraction energy to update the near-surface model. With the acquisition cable length being limited...

Understanding The Mesozoics Beyond Basalt: A Case Study Of Sub-Basalt Imaging

S. Sengupta, S. K. Goswami, G. Menzel-Jones, B. Chowdhury, Artem Sazykin

Indonesian Petroleum Association

..., the diving-wave penetration was limited up to a maximum depth of 1.8 km. To update the deeper sections, a velocity scanning approach, and multiple passes...

Terrigeneous Sedimentation in a Shallow Water Coral Reef Environment

Jack Morelock, Karl J. Koenig

Journal of Sedimentary Research (SEPM)

.... The reefs face a long reach of over one thousand miles of open water in the northeast sector. Storm waves from this direction build up to a maximum...

Wave-Equation-Based Target-Oriented Inversion for Reservoir Characterisation, #41759 (2016).

Dries Gisolf, P.R. Haffinger, P. Doulgeris

Search and Discovery.com

... currently in industry • Full wave-form inversion (FWI): - Low frequencies only. Long offsets only (diving waves). Finite Difference propagator. Single...

Low-energy Coast Near Cape Romano, Florida

W. F. Tanner, R. G. Evans, C. W. Holmes

Journal of Sedimentary Research (SEPM)

... samples, on corners of a one-mile grid, were taken by free-diving or with a Van Veen sampler. Three profiles of five core stations each were run across...

The Evolution of FWI and its Perceived Benefits

Tony Martin, Andrew Long

Australian Petroleum Production & Exploration Association (APPEA) Journal

... (Rønholt et al. 2015), i.e. energy recorded as continually refracted diving waves or post-critical head waves. This approach generates accurate high...

Source and Variation of Hawaiian Littoral Sand

Ralph Moberly, Jr., L. David Baver, Jr.,, Anne Morrison

Journal of Sedimentary Research (SEPM)

... to exposure to tradewind-driven waves, to storms, and to reef configuration. Detrital components are mainly fresh grains of basalt, but weathered grains...

Orientation of Empty Pelecypod Shells and Shell Fragments in Quiet Water

H. Edward Clifton

Journal of Sedimentary Research (SEPM)

... by waves or currents. Whether on vegetated or unvegetated unrippled sand or on solid coral, the particles lie predominantly with concave sides up...

Carbonate Sediments of Isla Mujeres, Quintana Roo, Mexico and Vicinity

Robert L. Folk, Miles O. Hayes, Rikii Shoji

New Orleans Geological Society

...------------------------- most of the sand islands are on the lee side and protected from heavy waves by a maze of coral lying within a few feet of sea level so that surf...

A Practical Case of Offshore Environment Protection in the Mahakam Area

Paul A. Wiet, Triadjie Poerwanto

Indonesian Petroleum Association

.... At this depth, conventional diving operations (heliox and deck decompression chamber) with decompression following each dive cannot be envisaged since...

Full-waveform inversion derived prestack reflectivity gathers

Jian Mao, Xin Cheng, Denes Vigh, James Xu, Qiaofeng Wu

International Meeting for Applied Geoscience and Energy (IMAGE)

... diving waves down to the original Louann salt level. Using the lowfrequency ultra long-offset data, we are able to invert a velocity with much more...

Integrated Full Waveform Inversion and Dip Constrained Tomography for Complex Carbonate Imaging - Case Study from Indonesia

Yonghe Guo, Jun Wang, Pongga Wardaya, Riaz Alai, M Afiq B Mokhtar, Rizki Krishna Pratama, Haryono Haryanto

Indonesian Petroleum Association

... also called diving waves. Refraction tomography has been widely used in the industry for the purpose of shallow velocity update, by picking the first...

Seismic tomographic cross-sections of the Bowser Basin in northwest British Columbia, Canada

David B. Snyder, Brian J. Roberts

CSPG Bulletin

... (solid black lines) to obtain observable amplitudes also enable recording of diving (solid, coloured lines) or refracted (dashed lines) seismic waves...

Modern Carbonate Environments of the Upper Florida Keys Guidebook

Wayne M. Ahr, E. A. Shinn

New Orleans Geological Society

... of Florida, is tourism. Fishing, diving and water-oriented sports are drawing cards for the Keys. Bonefish, snook and tarpon are favorites in inshore...