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The AAPG/Datapages Combined Publications Database

Showing 29,447 Results. Searched 200,685 documents.

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Flume Experiments on the Transition from Ripples to Lower Flat Bed with Increasing Sand Size

John B. Southard, Lawrence A. Boguchwal

Journal of Sedimentary Research (SEPM)

... of mean flow velocity vs. sediment size for a flow depth of 7 cm plotted from the flume runs shows that in the size interval from 0.6 mm to 0.7 mm...

1973

Seismic-Refraction Study of Continental Margin East of Florida

R. E. Sheridan , C. L. Drake , J. E. Nafe , J. Hennion

AAPG Bulletin

... have existed as early as Paleocene time. Besides the changes in relief within the sedimentary section, there are lateral facies changes and velocity...

1966

The Wave Equation Applied to Migration

D. Loewenthal, L. Lu, R. Roberson, J. Sherwood

Southeast Asia Petroleum Exploration Society (SEAPEX)

... of the relative inaccuracy of our velocity information, we will content ourselves with deriving a function B(x, τ), where the depth variable z has been replaced...

1978

Seismic Exploration in Railroad Valley, Nevada

John H. Vreeland, Bert H. Berrong

Rocky Mountain Association of Geologists

... velocity changes which result from these variations can also cause statics problems. SURFACE CONDITIONS At first glance, Railroad Valley appears...

1979

Effect of Froude Supercritical Flow on Fluvial Facies, Geometries and Architecture; #51407 (2017)

Piret Plink-Bjorklund

Search and Discovery.com

... rivers with highly variable discharge displays an abundance or even dominance of Froude supercritical flow deposits. This article shows that Froude...

2017

Ranking Influence of Microfabrics and Microporosity on Acoustic Propagation in Unconventional Tight Carbonate Reservoirs

Abdallah Abdelkarim, Mohammed Makkawi

Unconventional Resources Technology Conference (URTEC)

... system, which also affect the later diagenetic setting (Choquette and Pray, 1970). Ultrasonic velocity in carbonate rocks is principally a function...

2022

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

... elevations of shots and receivers of OBC data, iterative converted-wave velocity (vc) and effective vp/vs ratio (e) analyses and prestack converted wave...

2014

Serang Field Re-Evaluation

Tom Clark, Joewono Hadiwijoto, Bashir Zagalai, Steve Martinez, Donna Staples

Indonesian Petroleum Association

... structural imaging. Even with 3-D seismic, mapping is a problem due to a lateral velocity anomaly related to a major fault and to lithology variations...

1994

Reducing seismic quantitative interpretation uncertainty in complex geological environments: A case study from offshore Australia

Andrea Paxton, Lianping Zhang, Abdul Kholiq, Lee Davey, Richard Bisley, Dominic Fell, Leo Leon, James Shadlow

International Meeting for Applied Geoscience and Energy (IMAGE)

... to seismic signal processing, velocity modeling, imaging and seismic quantitative interpretation (QI) to obtain high-resolution interpretation volumes...

2022

Shallow Crustal Structure of the Solomon Islands Intra-Arc Basins from Sonobuoy Seismic Studies

A. K. Cooper, T. R. Bruns, R. A. Wood

Circum Pacific Council Publications

... to be variable (Cretaceous to Pliocene). Con­ sequently, the basement velocity data give no clue as to the age of the basin. High-velocity sedimentary layers...

1986

A prior regularized 3D full-waveform inversion using 2D generative diffusion models

Fu Wang, Tariq Alkhalifah, Xinquan Huang

International Meeting for Applied Geoscience and Energy (IMAGE)

... in observation, this inverse problem is highly ill-posed, especially for recovering a 3D velocity model. To solve this problem, regularization is often...

2024

Seismic Characterisation of Unconventional Plays in North America

Lee Bell, Mary Edrich, Alvaro Chaveste

Petroleum Exploration Society of Australia (PESA)

... erised discovered and developed more efficiently and the regional and local stress fields. Azimuthal usi ng su rface seismic velocity data...

2012

Abstract: Efficency and Accuracy Enhancement for One-way Wave Equation Migration Through Improved Mapping Function in the Time-shift Imaging Condition; #90171 (2013)

Mark Ng

Search and Discovery.com

...-velocity layer. This error manifests in the form of ‘statics’ in the output commonimage gathers (CIGs) on the order of 2Δz. While the use of variable...

2013

Current Trends in Geophysics

H. E. Stommel, J. M. Graul

Indonesian Petroleum Association

... of interest, we now hope to determine reliable estimates of such rock parameters as velocity, density, and, ultimately, hydrocarbon content. The trend...

1978

Influence of Porosity and Facies of Baturaja Carbonate to the Seismic Wave Velocity: Case Study of Tambun Field West Java

Jarot Setyowiyoto, Bagus Endar B. Nurhandoko, Ariffin Samsuri, Bambang Widjanarko, Thurisina

Indonesian Petroleum Association

...Influence of Porosity and Facies of Baturaja Carbonate to the Seismic Wave Velocity: Case Study of Tambun Field West Java Jarot Setyowiyoto, Bagus...

2007

Physical Properties of Carbonate Reservoirs in South Sumatra

B. Sudewo, A. R. Suhendan, S. Chacko

Indonesian Petroleum Association

... of the physical properties of the Baturaja Limestone from PT Stanvac Indonesia acreage in the South Sumatra Basin: P-wave velocity, density and electrical...

1987

Hydrodynamic Properties and Grain-size Characteristics of Volcaniclastic Deposits on the Mid-Atlantic Ridge North of Iceland (Kolbeinsey Ridge)

Reinhard Oehmig, Hans-Joachim Wallrabe-Adams

Journal of Sedimentary Research (SEPM)

.... Observations concerning different current expositions of central ridge sediments, combined with the parameters of settling velocity distribution, grain...

1993

Resolving Multiphase Fractions in Horizontal Wells Using Speed of Sound Measured with Distributed Acoustic Sensors and a PVT Database

Peyman Moradi, Brian Seabrook, Neal Adair, Ricardo Garza

Unconventional Resources Technology Conference (URTEC)

... Sensor array has the ability to measure the Speed of Sound (SoS) in a variety of flowing mixtures, from noisy gas-liquid flows to low-velocity, quiet...

2024

Experimental and Field Studies on the Genesis of Sandstones

Gerard V. Middleton

Wyoming Geological Association

... are the many studies made on factors affecting the settling velocity of particles, studies by Hjulstrum and Shields on the conditions necessary for the beginning...

1966

ABSTRACT: METHODOLOGY OF PP/PS EVENT MATCHING IN 4C DATA INTERPRETATION

Keshan Zou, Jianchun Dai, Andy Hannan

Geological Society of Trinidad & Tobago

... is a must for any reasonable multi-component data interpretation downroad. The yielded Vp and Vs ratio could be used for migration velocity updating...

2007

Abstract: The role of hydrogeology in developing effective mine water control programs in fractured porous rocks

John E. Gale, R. MacLeod, G. Bursey

Atlantic Geology

... Major's Path, St. John's, NF AJA 5Al, Canada 1 Many open pit and underground mining sites are characterized by overburden of variable thickness...

1999

Interactive Color Display and Analysis--Added Dimension to Seismic Interpretation: ABSTRACT

G. W. Rice, B. B. Stebens, Peter Macalister Hall

AAPG Bulletin

... in multiple seismic parameters such as reflection strength, velocity, frequency, and structure can be assimilated more effectively with the aid of interactive...

1982

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