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The AAPG/Datapages Combined Publications Database
Showing 33,066 Results. Searched 195,405 documents.
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...
1985
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...
1966
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...
2019
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...
1967
ABSTRACT: Wavelet Dispersion and Bright-Spot Detection, by Peter C. Luh; #91022 (1989)
Search and Discovery.com
1989
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...
1970
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...
1968
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...
2019
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...
1953
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...
2021
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...
2016
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
2008
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...
2012
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...
1988
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...
1994
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...
2015
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...
2018
Investigation of DMO Algorithms during Test-Line Processing: Some Recommendations
Ng Tong San, Mohd. Hashim Abas, Leong Lap Sau
Geological Society of Malaysia (GSM)
... should have no effect on zero-offset data (x =0) or horizontal reflectors (sin 0 = 0); increasing importance and significance for increasing dips (sin 90...
1996
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...
2020
Hydrocarbon Production During Underbalanced Drilling A Mathematical Model to Predict Well Productivity
Samuel Zulkhifly Sinaga, Bonar Tua Halomoan Marbun
Indonesian Petroleum Association
... fpm, whereas conventional annular velocity in horizontal wells is more than 150 fpm. This velocity should be enough to clean the bit and the bottom...
2011
EXTENDED ABSTRACT: Overpressure Determination from Sonic and Resistivity Log Anomalies, Jonah Field, Northern Green River Basin, Wyoming
Robert M. Cluff, Suzanne G. Cluff
Wyoming Geological Association
... overpressure compartments and their boundaries. Typically, the gamma ray, resistivity, and sonic transit time (or its inverse, velocity) are plotted using...
2001
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...
2018
Velocity Conditioning for an Improved Depth Conversion, #40743 (2011)
Ang Chin Tee, M. Hafizal Zahir, M. Faizal Rahim, Nor Azhar Ibrahim, Boshara M. Arshin
Search and Discovery.com
... the complex spatial geometry of the structure and the effect of low velocity shallow gas sands. The 3D hybrid velocity model Interval Velocity grid...
2011
Abstract: Migration of Velocity Spectra: An Example from the Timor Sea, by J. C. Beasley and R. Klotz; #91015 (1992).
Search and Discovery.com
1992
Outlining Shale Masses By Geophysical Methods
A. W. Musgrave , W. G. Hicks
AAPG Special Volumes
... these two lines. This largely accounts for the increase in velocity. In the shale mass the hydrostatic pressure Fig. 14. Calculated gravity effect...
1968