Hydrothermics in the Wyoming Overthrust Belt

Gary W. Zielinski , , James A. Drahovzal , , Gail Moritz Decoursey , , Joseph M. Ruperto

AAPG Bulletin

... of the annual surface-temperature variation, g is the geothermal gradient, ^ohgr is the angular velocity of the annual temperature variation (2 × 10-7...

Time-Lapse WAW VSP Imaging of an Unconventional Reservoir Using DAS Fiber Optics

J. Andres Chavarria, Dan Kahn, David Langton, Steve Cole, Xinyang Li

Unconventional Resources Technology Conference (URTEC)

.... This provides not only velocity/image control in the overburden and target, but also high-resolution images within the frac zone from the horizontal receivers...

An Automated Grain-shape Classifier

William H. Glezen, John C. Ludwick

Journal of Sedimentary Research (SEPM)

..., the geometric characteristic that exerts the greatest effect on descent velocity in the classifier, is not reflected in the Wadell projection parameters; i.e....

Seismic-Refraction Study of Continental Margin East of Florida

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

AAPG Bulletin

...-depth curve (Fig. 7) is flatter and the gradient of velocity with overburden is small. Therefore, its velocity is more consistent and correlations...

Reducing mapping ambiguity via visco-acoustic multi-azimuth dynamic resolution time-lag full-waveform inversion in offshore Senegal

Kai Zhao, Hui Zhang, Jianfeng Yao, Robert Eliott-Lockhart, Jacob Low

International Meeting for Applied Geoscience and Energy (IMAGE)

... continuity. DR-TLFWI accomplishes this by better promoting the tomographic term of the velocity gradient from the reflection energy (low-wavenumber...

ABSTRACT: Wavelet Dispersion and Bright-Spot Detection, by Peter C. Luh; #91022 (1989)

Search and Discovery.com

Elastic Properties of Propped and Unpropped Eagle Ford Shale and 3D-printed Fractured Models Under Iso-static Stress

Suresh Dande, Robert R. Stewart, Michael T. Myers, Lori Hathon, Nikolay Dyaur

Unconventional Resources Technology Conference (URTEC)

... confirms that propped models are more compliant. We extend this experiment with Eagle Ford Shale samples, we find that S-wave velocity is faster...

Critical Analysis of Stack Seismic Systems

L. E. Nugent, Jr.

AAPG Bulletin

..., this basic error commonly is increased critically by velocity variations characteristic of the system. Proof of this is based on the classical principles...

Shell Accumulations in Underwater Sediments and Their Relation to the Thickness of the Traction Zone

Maurice C. Powers, Blair Kinsman

Journal of Sedimentary Research (SEPM)

... currents. There is probably a lateral migration of the sediments in the traction zone in the current direction with a greater horizontal velocity toward...

Flow Regimes and Solute/Energy Transport

Jeffrey S. Hanor

Special Publications of SEPM

... flow paths and the magnitude of the hydraulic gradient driving fluid flow from the general expression for .Darcy's law: f where is the velocity...

A New Pore Pressure Prediction Model for Naturally Fractured Shales and Stacked Plays: The Effect of Active Hydrocarbon Generation - A Powder River Basin Case Study

Daniel Orozco, Roberto Aguilera

Unconventional Resources Technology Conference (URTEC)

...A New Pore Pressure Prediction Model for Naturally Fractured Shales and Stacked Plays: The Effect of Active Hydrocarbon Generation - A Powder River...

The Diffusion of Grains in the Lee of Ripples, Dunes, and Sand Deltas

J. R. L. Allen

Journal of Sedimentary Research (SEPM)

... that: 1. the rate of deposition of grains in the lee diminishes with increasing horizontal distance from the sand-body crest; 2. the gradient...

Yesterday, Today, and Tomorrow in Seismic Exploration

Emil J. Mateker, Jr.

GCAGS Transactions

... information about the type of rocks through which the energy has propagated. Extraction of this information, for example, in the form of velocity...

Structure of the Tokai segment from the integrated high-resolution seismic imaging: A case study from the eastern Nankai Trough

Andrzej Grszczyk, Rafael Almeida, Romain Brossier, Ludovic Mtivier

International Meeting for Applied Geoscience and Energy (IMAGE)

... The oceanic crust is characterized by an abrupt increase in seismic velocities that makes it easily identifiable in the velocity gradient image (Fig. 3b...

Abstract: The Effect of Cm-Dm Scale Erosive Substrate Topography from Turbidity Flow Structure, by Joris T. Eggenhuisen, Bill McCaffrey, Rob Butler, and Peter Haughton; #90078 (2008)

Search and Discovery.com

High-resolution imaging with FWI on wide azimuth towed streamer data: Application in the Mississippi Canyon, GoM

Wanying Wang, Simon Luo, Xiaolei Song, Lennon Infante, Imtiaz Ahmed, Qingsong Li, Ganyuan Xia, Katrina Packer

International Meeting for Applied Geoscience and Energy (IMAGE)

... data, the initial gradient shows a more balanced update direction that is closer to zero mean, suggesting both fast and slow velocity updates (Figure...

Geomechanical Modeling and Wellbore Stability Analysis Approach to Plan Deep Horizontal Wells Across Problematic Formations

Ahmed K. Abbas, Ralph Flori, Mortadha Alsaba

Unconventional Resources Technology Conference (URTEC)

... ρ 9 = tensile strength, MPa = compressional acoustic wave velocity, km/s = porosity, % = vertical stress, MPa = maximum horizontal stress, MPa...

Effect Rule and Mechanism of Bedding Fractures on the Fluid Flow in Tight Reservoir with Extremely High Pressure

Yongqiang Tang, Maolei Cui, Pufu Xiao, Zengmin Lun, Rui Wang, Shuxia Zhao

Unconventional Resources Technology Conference (URTEC)

..., 33, 7604-7613. http://dx.doi.org/10.1021/acs.energyfue ls. 9b01621 Tian, W., Li, A., Ren, X., et al. 2018. The threshold pressure gradient effect...

Abstract: Drilling and Running Open Hole Multistage Fracturing Completion Optimized with Managed Pressure Drilling in Unconventional Tight Gas in Saudi Arabia; #90319 (2018)

Stanislav Baichev, Mohammad Al-Zaki, Kyungnam Han, Alexey Alexeyenko, Omar Al-Faraj

Search and Discovery.com

... of lost circulation and well flow. While drilling a horizontal well in a reservoir with narrow window between pore and fracture gradient...

The Effect of Unconformities and Subsequent Loading on Pore Pressure Profiles

Jakob Heller, Stephen O 'Connor, Andrew Emery, Ed Hoskin, Jack Lee, Chris Ward

Indonesian Petroleum Association

... pressure can maintain equilibrium with the hydrostatic (normal) pressure gradient, the shales are said to be normally compacting and the velocity...

Analytical and Numerical Studies of Sand Erosion in Electrical Submersible Pump (ESP) Systems

Saúl Gómez Díaz de Bonilla, Her-Yuan Chen

Unconventional Resources Technology Conference (URTEC)

... developed analytical equation to estimate the solid particle velocity. The methodology follows Finnie’s (1960) analytical erosion model, which provides...

Prestack Depth Migration for "Easy" Unconventional Plays?, #41056 (2012)

Morgan Brown

Search and Discovery.com

... three key reasons for (re)considering PSDM: 1) Remove false time structures caused by lateral variations in velocity. The ‘fault shadow’ effect...

Correlation of Acoustic Velocity, Stress, Rock Composition, Organic Matter and Rock Lamination in Organic-Rich Shales

Adel A. Alqahtani, Azra N. Tutuncu

Unconventional Resources Technology Conference (URTEC)

... effect on the velocity of the horizontal samples due to the high compressive strength of the horizontal samples. Page 5 URTeC: 2456151 Figure 4...

The Role of Regional Seismic Surveys in the Exploration of the North West Shelf

J. Ostby, C. Johnston

Petroleum Exploration Society of Australia (PESA)

... velocity gradient, beneath a high velocity gradient); the periodicity of the multiple is long or non-periodic; or the multiples are much stronger...

Improving the image below complex overburden geology with FWI and Q-tomography: A case study at Etame license area, offshore Gabon

Richard Huang, Chong Chung, Benjamin Cole, Ivan Berranger, Ika Novianti, Paul Ware

International Meeting for Applied Geoscience and Energy (IMAGE)

... events. With the simple velocity gradient, both sediment and salt refractions are not matched. FA-FWI largely improves the match as shown in Figure 2b...