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The AAPG/Datapages Combined Publications Database
Showing 33,096 Results. Searched 195,488 documents.
Numerical Study of Proppant Transport and Distribution along Opened Bedding Planes
Jun Xie, Jizhou Tang, Sijie Sun, Yuwei Li, Yi Song, Xiaojin Zhou, Haoyong Huang
Unconventional Resources Technology Conference (URTEC)
... is adopted to calculate the velocity of sedimentation. The blocking effect from high volume fraction is considered. There is no sedimentation...
2020
Gas-Hydrate Horizons Detected in Seismic-Profiler Data from the Western North Atlantic
Brian E. Tucholke , George M. Bryan , John I. Ewing
AAPG Bulletin
... in seawater using a set of geologically reasonable values for thermal gradient, sound velocity in sediment, and bottom-water temperature. Our value...
1977
Numerical Simulation of Proppant Transport and Deposition in Complex Hydraulic-Natural Fracture Networks
Dharmendra Kumar, Baohua Liu, Ahmad Ghassemi
Unconventional Resources Technology Conference (URTEC)
... by fluid velocity, micro-proppant size, fluid rheology, fracture aperture, hydraulic and natural fracture interaction and near wellbore tortuosity...
2021
Transport Mechanisms of Sand in Deep-Marine Environments—Insights Based on Laboratory Experiments
Hedda Breien, Fabio V. De Blasio, Anders Elverhoi, Johan P. Nystuen, Carl B. Harbitz
Journal of Sedimentary Research (SEPM)
... on the top. Figure 5. Time development of the velocity field (horizontal) of a 10 wt. % clay experimental flow at upstream station. A) Average velocity...
2010
Magnetometer Study in Louisiana: DISCUSSION
B. B. Weatherby
AAPG Bulletin
... would bear a striking relation to the gravity gradient in torsion-balance work, which is significant in the light of Albert Einstein's recently...
1930
Abstracts: Implicit Preconditioning for Least-squares Nonstationary Phase Shift; #90173 (2015)
Marcus R. Wilson and Robert J. Ferguson
Search and Discovery.com
... gradient iterations at the cost of introducing an approximation to the evanescent filter. We observe a substantial reduction in the number...
2015
Effects of Nanoscale Pore Confinement on CO2 Displacement
Kai Zhang, Qingquan Liu, Shuhua Wang, Dong Feng, Keliu Wu, Xiaohu Dong, Shengnan Chen, Zhangxin Chen
Unconventional Resources Technology Conference (URTEC)
...osity Ratio Figure 14. Liquid Vapor Viscosity Ratio at Various Radii As the mobility benefits from a confinement effect, the threshold velocity can ...
2016
Physics-Driven Optimization of Drained Rock Volume for Multistage Fracturing: Field Example from the Wolfcamp Formation, Midland Basin
Sergei G. Parsegov, Kiran Nandlal, David S. Schechter, Ruud Weijermars
Unconventional Resources Technology Conference (URTEC)
... and conductivity of hydraulic fractures in a multistage horizontal well. The influence of wellbore deviations and other local initial conditions...
2018
In Situ Stress Prediction Using Differential Strain Analysis and Ultrasonic Shear-Wave Splitting
B. Widarsono, J. R. Marsden, M. S. King
Indonesian Petroleum Association
... the presence of azimuthal velocity anisotropy over 90°. As shown in Figure 1, similar behaviour is also observed in both the vertical and horizontal...
1996
ABSTRACT: Dual Gradient Drilling Technology
Weinstock, Charles W.
GCAGS Transactions
...ABSTRACT: Dual Gradient Drilling Technology Weinstock, Charles W. 2002 1004 1004 Vol. 52 (2002) The oil industry is developing a variety of new...
2002
Lateral Fluid Flow in a Compacting Sand-Shale Sequence: South Caspian Basin
John D. Bredehoeft , Rashid D. Djevanshir , Kenneth R. Belitz
AAPG Bulletin
... gradient. Observe that a lateral horizontal gradient exists within the Caspian basin. The hydraulic head is higher in area III than in area II...
1988
Efficiency analysis of seepage of Baz Ali small dam, Kurram Agency using clay blanket and cut-off wall with sand filter
Arshad Ullah, Azman Kassim, Ishtiaq Alam, Muhammad Junaid, Izwan Shah Ahmad
Geological Society of Malaysia (GSM)
.../S sand filter, U/S clay blankets, cost analysis INTRODUCTION Seepage is the flow of water through soil under a hydraulic gradient. The hydraulic...
2019
Sediment Sorting in Alluvial Channels
Lucien M. Brush Jr.
Special Publications of SEPM
... to the formation of rate tary structures and textures primary sedimen in alluvial channels Fall velocity turbulent diffusion gravitational...
1960
Prediction of multiple origin overpressure in deep fold-thrust belt: A case study of Kuqa subbasin, Tarim Basin, northwestern China
Changyu Fan, Gang Wang, Zhenliang Wang, Xiaojie Han, Jie Chen, Kuaile Zhang, and Baoshou Zhang
AAPG Bulletin
.... L., 1995, Pore pressure estimation from velocity data; accounting for overpressure mechanisms besides undercompaction: SPE Drilling and Completions, v...
2021
EXTENDED ABSTRACT: Geological Perception of Pore and Fracture Prediction: Case Histories from the Gulf of Mexico
Shaker, Selim S.
GCAGS Transactions
...)The relationship between the ES and the porosity indicators, (i.e., resistivity and velocity) calculates the PG (pore pressure gradient...
2004
Combining high resolution modelling and one-way wave field extrapolation migration to image beneath a complex overburden: A case study from Porcupine Basin, Ireland
Partha Pratim Mandal, Weidi Koh, Julien Bluteau, David Laws, Jennifer Greenhalgh
Petroleum Exploration Society of Australia (PESA)
... imaging challenge is the effect of high velocity, laterally variable Late Cretaceous chalk. The transition from this carbonate to underlying clastic...
2016
Estimating Reservoir Pressure Gradient from Stage-By-Stage Pressure Fall off Analysis in Shale Horizontal Wells
Mazher Ibrahim, Ahmed Farid Ibrahim, Matt Sinkey, Thomas Johnston, Andrew McMurray
Unconventional Resources Technology Conference (URTEC)
...Estimating Reservoir Pressure Gradient from Stage-By-Stage Pressure Fall off Analysis in Shale Horizontal Wells Mazher Ibrahim, Ahmed Farid Ibrahim...
2022
Fluvio-Marine Sediment Partitioning As A Function of Basin Water Depth
Jochem F. Bijkerk, Joris T. Eggenhuisen, Ian A. Kane, Niels Meijer, Colin N. Waters, Paul B. Wignall, William D. McCaffrey
Journal of Sedimentary Research (SEPM)
... gradient. In this case, a horizontal plane would represent 0% value while a 100% value would represent system-scale equilibrium conditions. The estimated...
2016
Thermodynamic Behavior of Liquid-Supercritical CO2 Fracturing in Shale
Xiaojiang Li, Gensheng Li, Wei Yu, Haizhu Wang, Kamy Sepehrnoori, Zhiming Chen, He Sun, Shikun Zhang
Unconventional Resources Technology Conference (URTEC)
... model to simulate the impact of thermodynamic and heat transfer behavior on fracture initiation during CO2 fracturing. The velocity and pressure...
2017
Impact of Seismic Attenuation on Downhole Microseismic Moment Tensor Inversion
Donghong Pei, Natalia Verkhovtseva, Jon Doucette, Price Stark
Unconventional Resources Technology Conference (URTEC)
... inversion (MTI). Though there are many other factors that also have an impact on MTI. This study focuses on the effect attributed to seismic attenuation...
2016
The Commercial Application and Interpretation of the Borehole Gravimeter
James W. Bradley
Pacific Section of AAPG
... to obtain gravity gradients. The development of the theory which is currently used in vertical gravity gradient measurements occurred in the 1950’s, while...
1976
Seismic Stratigraphic Exploration - A New Frontier
Roy O. Lindseth
Rocky Mountain Association of Geologists
.... By drawing these contours of iso-velocity, as shown on Figure 2 by the horizontal lines, one can obtain an accurate representation of individual stratigraphic...
1977
Application of Seismic Shear Wave Refraction for Subsurface Soil Dynamic Investigation at Bukit Changgang, Banting, Selangor
Abdul Rahim Samsudin, Khairul Anuar Mohd. Nayan, Umar Hamzah
Geological Society of Malaysia (GSM)
... from all the spread lines interpreted. The result shows that with the exception of seismic line 1, the range of shear wave velocity for the first...
1997
Application of Traveltime Tomography and Kirchhoff Migration Methods to Improve the Seismic Cross-Section Resolution on 2D Land Seismic Data
Harmita Lestari, Nur Ayu Anas, Muh. Resky Ariansyah, Sabrianto Aswad, Heri Winarto
Indonesian Petroleum Association
.... In addition, static correction will determine the velocity model created. Travel time tomography has a role to facilitate the calculation...
2019
Seismic Refraction and Reflection Studies in the Timor-Aru Trough System and Australian Continental Shelf: Convergent Margins
R. S. Jacobson , G. G. Shor Jr. , R. M. Kieckhefer , G. M. Purdy
AAPG Special Volumes
... was not observed, a calculation was made of the shallowest depth to a masked layer of this velocity. The effect of such an undetected masked layer would...
1979