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The AAPG/Datapages Combined Publications Database

Showing 73,270 Results. Searched 200,685 documents.

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Deep Earth: Leveraging neural networks for seismic exploration objectives

Tariq Alkhalifah, Claire Birnie, Randy Harsuko, Hanchen Wang, Oleg Ovcharenko

International Meeting for Applied Geoscience and Energy (IMAGE)

.... For that, we replace the prediction head with a sigmoid activation function followed by a linear layer, use cross entropy loss between the output...

2022

Illuminating the Complex Geology of the UK Faroe Shetland Basin

Antonio Castiello, Gareth Venfield, Jens Beenfeldt

GEO ExPro Magazine

...). The water depth over the area varies between 500 – 1500 m, and the overburden is characterized by high-velocity Eocene fan deposits, sand injectites...

2022

Abstract: VSP P-Wave Attenuation Model Study in Elastic Earth: Spectral Ratio method Vs Centroid Frequency Shift Method; #90187 (2014)

Waheduzzaman Talukder and Ralph Phillip Bording

Search and Discovery.com

... ratio of amplitude at two different depth levels is a linear function of frequency and the equation (2) can be rewritten as: (3) Y  C  ( m) f...

2014

Results of Elastic-Wave Surveys in California and Elsewhere

Frank Rieber

AAPG Bulletin

..., velocity would, presumably, increase as a continuous function of depth of overburden. Actually, however, this occurs in few places. Sediments come from...

1930

Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad

Tony Johns

Search and Discovery.com

... present precisely that next phase in the 4C processing, advancing the P- and PSv-wave data through anisotropic prestack depth migration, using cell...

Unknown

Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad

Tony Johns

Search and Discovery.com

... present precisely that next phase in the 4C processing, advancing the P- and PSv-wave data through anisotropic prestack depth migration, using cell...

Unknown

Micro transient EM for seismic sand corrections through physics-coupled deep learning

Daniele Colombo, Ersan Turkoglu, Ernesto Sandoval-Curiel, Javier Giraldo-Buitrago

International Meeting for Applied Geoscience and Energy (IMAGE)

... to velocity vs depth assuming a given mineralogy and porosity. Results indicated a minimum P-velocity of 450 m/s with a power low increase vs depth related...

2022

Three-Dimensional Depth Imaging of Seismic Data to Help Delineate Petroleum Reservoirs in the Williston Basin

Alvin K. Benson

Williston Basin Symposium

... by rapid lateral velocity changes, velocity pull-up, etc. and (b) the necessity of using a depth migration process versus time migration plus...

1995

Development of offshore microtremor array exploration

Yoshikazu Matsubara, Mikihiro Imai, Akeshi Hiraide

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Comparison of each Vs profile at the site where array measurements and PS velocity logging were performed were very consistent. Exploration using this method...

2022

Imaging of Subsurface Velocity Structure on Volcanic Area of South East Java: An Application of Passive Seismic Ambient Noise Tomography for Sub-Volcanic Hydrocarbon Exploration

Pongga Wardaya, Erlangga Septama, Vida Irine Rossa, Richie Rahmat Pratama, Rusalida Raguwanti

Indonesian Petroleum Association

... velocity profile through an inversion technique. From the inversion result we obtain the subsurface swave velocity structure down to a depth of 6 km...

2021

Dynamic Non-Darcy Flow Compositional Numerical Simulation for CO2 Huff-n-Puff Development in Tight Oil Reservoir

Qiong Wang, Rui zhong Jiang, Yong zheng Cui, Gewei Liu

Unconventional Resources Technology Conference (URTEC)

... development, Darcy model or previously published low-velocity non-Darcy flow model with constantly non-linear parameter in most numerical simulator may cause...

2019

An unsupervised intelligent stacking velocity analysis based on clustering

Lide Wang, Xingrong Xu, Jie Wu, Huahui Zeng, Yundong Yong, Yanxiang Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... function and the energy of velocity spectrum are utilized to weigh the efficiency and accuracy of the cluster. Furthermore, compared with manual picking...

2024

-- no title --

user1

Search and Discovery.com

...-layer, non-linear slope tomography updates were run to update the velocity model and enhance the image. Kirchhoff depth migration was performed...

Unknown

Abstract: Seismic Rayleigh wave method for imaging subsurface cavities

Jon C. Q. Xu, Stephen D. Butt, Patrick J. C. Ryall

Atlantic Geology

... shear velocity as a function of both depth and distance, i.e. shear velocity field (SVF) images. The technique was tested at three locations in Nova...

2009

Chapter 8: Petrophysical Characteristics of the Ivie Creek Case-Study Area - Geological and Petrophysical Characterization of the Ferron Sandstone for 3-D Simulation of a Fluvial-Deltaic Reservoir (MP-02-6)

R.D. Jarrard, M.A. Chan, C.B. Forster, S.H. Snelgrove

Utah Geological Survey

..., 1976). Various procedures have been proposed for using velocity/depth or porosity/depth patterns to estimate amount of exhumation at a well. All...

2001

Interpreted Linear Features from Landsat Thematic Mapper Images, Southern Ute Indian Reservation, Colorado

Daniel H. Knepper Jr.

Utah Geological Association

... of the linear features as a function of solar illumination angle. Consequently, these linear feature data are considered unsuitable for determining...

1996

A Comparative Study of 3-D Noise Attenuation Techniques

Daniel Wheaton, Yendri, Kusnarya

Indonesian Petroleum Association

... Attenuation of linear noise using f-k filtering was applied to the ONWJ Survey as the initial poststack processing step. For a 2-D by 2-D f-k technique...

1996

Turning high resolution FWI model into pseudo-reflectivity: A case study using sparse OBN

Bing Bai, Yao Yu, Ruoyu Gu, Shenghong Tai, Denes Vigh

International Meeting for Applied Geoscience and Energy (IMAGE)

... (Figure 1a). We used a smoothed version of this legacy velocity model as our initial model for FWI. We ran multiple passes of ETM-FWI using the sparse...

2022

Abstract: Velocity Dispersion in Field Seismic Data: Impact, Detection and Application; #90211 (2015)

Langqiu Sun

Search and Discovery.com

..., sensor depth 1025m, offset 137m, source signal 14s long, 8-180Hz linear sweep. The travel time curve was smoothed using 100 points. The calculation...

2015

Aerodynamic and Geometric Diameters of Airborne Particles

Weinan Chen , Donald W. Fryrear

Journal of Sedimentary Research (SEPM)

...' Law and Newton's motion law. For a given fluid regime, settling velocity of a particle is a function of its size, shape, and density. Sedimentation...

2001

Enhanced Monitoring of Geologic Carbon Sequestration Using 3-D Passive Microseismic Location Techniques

Delaine Reiter and William Rodi

Search and Discovery.com

.... The results from both case studies demonstrate that we can accurately locate and characterize microseismicity in a realistic 3-D velocity model using both...

2009

Chapter 7: Advanced Reservoir Characterization Using 3D Seismic Data in Badger Basin, Bighorn Basin, Wyoming

John E. Buggenhagen

Montana Geological Society

... using generalized linear inversion: Journal of the Canadian Society of Exploration Geophysicists, v. 20, no. l,pp. 40-54...

1997

Abstract: *Detection of Hydrocarbons from Velocity Logs using the Wavelet Coherence Analysis: A Case Study from Algerian Tight Reservoirs; #91202 (2022)

Said Gaci, Mohammed Farfour, and Saliha Amoura

Search and Discovery.com

...Abstract: *Detection of Hydrocarbons from Velocity Logs using the Wavelet Coherence Analysis: A Case Study from Algerian Tight Reservoirs; #91202...

2022

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