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The AAPG/Datapages Combined Publications Database

Showing 33,066 Results. Searched 195,405 documents.

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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

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

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

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

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