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The AAPG/Datapages Combined Publications Database
Showing 1,739 Results. Searched 200,619 documents.
Zama--A Geophysical Case History: Case Histories
Hugh Evans
AAPG Special Volumes
...) symmetric split spread with 440-ft (134 m) hole spacing was used to yield a 900 percent CDP output. Fig. 13. Rainbow template, deconvolved, Keg River...
1972
Mechanism Study of Casing Deformation in Multistage Hydraulic Fracturing Shale Reservoir
Ziyi Xu, Fei Yin, Lihong Han, Shangyu Yang, Xingru Wu
Unconventional Resources Technology Conference (URTEC)
... and symmetric with the cluster center. Formation properties in the drainage area can be represented by a segment between two stages. Therefore in this paper...
2018
Shallow Water Ripple Mark Varieties
William F. Tanner
Journal of Sedimentary Research (SEPM)
... by many workers. They include the wave-formed (symmetric; Ripple Symmetry Index crest-to-trough = --------------- = 1) trough-to-crest and the current...
1960
Regional Depositional History of the Miocene-Pleistocene Louisiana Slope, Green Canyon-Mississippi Canyon
David L. Risch, Abu N. Chowdhury, Andrew E. Hannan
GCAGS Transactions
... in Figure 5. Minibasin type 1 is a symmetric salt roller or depression that traps sands from successive turbidites near the center of the depression...
1994
Distinguishing Fracture Conductivity and Fracture Flux: A Systematic Investigation of Individual Fracture Contribution to Well Productivity
Aaditya Khanal, Ruud Weijermars
Unconventional Resources Technology Conference (URTEC)
...). Fig. 3a shows the DRV around each of the fractures after 30-year production, which evolves markedly different from the initial symmetric patterns Fig...
2020
GeoSHAP: A Novel Method of Deriving Rock Quality Index from Machine Learning Models and Principal Components Analysis
T. Cross, K. Sathaye, K. Darnell, J. Ramey, K. Crifasi, D. Niederhut
Unconventional Resources Technology Conference (URTEC)
... are symmetric linear estimates of the per-feature contribution to a prediction from the model. That is to say, a Shapley value takes a model output, like...
2020
Benchmarking Operator Performance in the Williston Basin using a Predictive Machine Learning Model
T. Cross, K. Sathaye, K. Darnell, D. Niederhut, K. Crifasi
Unconventional Resources Technology Conference (URTEC)
... are Shapley values, which are symmetric linear estimates of the per-feature contribution to a prediction from the URTeC 2750 3 model. That is to say...
2020
Are Unconventional Well Performance Gains Exhausted? Investigating the Drivers of Year-over-Year Production Improvements Across the Major US Unconventional Plays Using Machine Learning
T. Cross, J. Chaplin, K. Sathaye, A. Cui
Unconventional Resources Technology Conference (URTEC)
... the inference models. The explanations used in this paper are Shapley values, which are symmetric linear estimates of the per-feature contribution...
2021
Dynamic Response of Deepwater Depositional Systems to Growth of the Mississippi Fan Fold Belt, Gulf of Mexico
Ciaran J. O'Byrne , Joydeep K. Haldar, Richard Klecker , Arthur E. Berman and John Martinez
GCAGS Transactions
..., the tabular sheet is ponded and flat topped, and the map-view coherency image suggests a symmetric geometry about the entrenched valley mouth...
1999
Oriented, Linear-shrinkage Cracks In Green River Formation (EOCENE), Raven Ridge Area, Uinta Basin, Utah
M. Dane Picard
Journal of Sedimentary Research (SEPM)
... to paleocurrent directions (or orientations) as indicated by asymmetric or symmetric ripple marks. A comparison of 12 trends of linear-shrinkage cracks...
1966
Tabular and Trough Cross-bedding: Comparison of Dip Azimuth Variability
L. D. Meckel
Journal of Sedimentary Research (SEPM)
... and compared with 12 readings along trough axes in lower rose. End_Page 84------------------------- which is nearly symmetric about the mean. All...
1967
Use of Machine Learning Production Driver Cross-Sections for Regional Geologic Insights in the Bakken-Three Forks Play
T. Cross, K. Sathaye, J. Chaplin
Unconventional Resources Technology Conference (URTEC)
... are symmetric linear estimates of the per-feature contribution to a prediction from the model. A Shapley value takes a model output, like cumulative oil...
2021
Morphology, Structure, and Evolution of a Channel Island in the Barakar River, Barakar, West Bengal
Swapan Kumar Sarkar, Sudhir Basumallick
Journal of Sedimentary Research (SEPM)
... direction, the laminae appear to lie symmetric with respect to the profile of the scour. In the same vertical face, asymmet ically filled troughs may...
1968
How Does the Impact of Completions Change Over the Life of a Well? A Comparison Across the Major US Unconventional Plays Using Machine Learning
T. Cross, K. Long, D. Niederhut, A. Cui
Unconventional Resources Technology Conference (URTEC)
... evaluation, we then generated explanations for the predictions of each model. We used Shapley values, which are symmetric linear estimates of the per-feature...
2022
Nautiloids and Current Ripples as Paleocurrent Indicators in Upper Ordovician Limestones, Anticosti Island, Canada
Owen A. Dixon
Journal of Sedimentary Research (SEPM)
... symmetric (fig. 6). Recent erosion may account for slightly flattened crests on some of the ripples. The ripples show some external features which...
1970
Counterregional-Style Deformation in the Deep Shelf of the Northern Gulf of Mexico
Mark G. Rowan, Kerry F. Inman
GCAGS Transactions
..., the geometry can range from an asymmetric fault-bounded growth wedge to a faulted fold to a symmetric growth syncline. Two or more such systems with variable...
2005
Hydraulic Fracture Closure Revealed Under Controlled Laboratory Conditions
Mohsen Talebkeikhah, Brice Lecampion
Unconventional Resources Technology Conference (URTEC)
... blocks. Three independent symmetric pairs of flat jacks and pistons apply triaxial confining stresses. A 1/8" high-pressure tube line, cemented with epoxy...
2024
Innovative Workflow for Rapid Parent-Child Degradation Modeling in Unconventional Reservoirs
Jichao Yin, Qin Ji, Jichao Han, James Cassanelli, Yuxing Ben, Hamid Behzadi, Osama Raba, Vivek Muralidharan, Andrew Haines, Xueying Xie, Claire Sirois
Unconventional Resources Technology Conference (URTEC)
... geometry is symmetric, implying there is no impact from depletion. Figure 11 clearly shows that child fracture length asymmetry and height loss both...
2025
Gas Province in the Deepwater Southern Gulf of Mexico
Leonardo E. Aguilera Gomez, Enrique Guzman Vera, Javier Contreras Trejo, Marco A. Arreguin Lopez, Arturo Escamilla Herrera
GCAGS Transactions
... to salt intrusions of the Salina del Golfo province, west of the study area (Fig. 1). This deformation generated symmetric and asymmetric anticlines...
2011
Some Inference Problems in Paleocurrent Studies
David J. Sanderson
Journal of Sedimentary Research (SEPM)
..., e.g., symmetric ripple marks, pebble, grain or fossil alignment etc. The type of directional data influences the approach to the inference problem...
1973
Trishear: A Review of Kinematics, Mechanics, and Applications
Stuart Hardy, Richard W. Allmendinger
AAPG Special Volumes
..., the apex of which is focused on the fault tip line and which, Erslev (1991) argued, must be symmetric with respect to the fault plane. The algorithm...
2011
Nearshore Bedform Patterns Along Rhode Island from Side-Scan Sonar Surveys
Andrew Morang , Robert L. McMaster
Journal of Sedimentary Research (SEPM)
... of symmetric and asymmetric bedforms similar to those described by Clifton (1976) off non-barred beaches in Washington, Oregon, and southern Spain were...
1980
The Hydraulic Equivalence of Mica
Larry J. Doyle, Kendall L. Carder, Robert G. Steward
Journal of Sedimentary Research (SEPM)
... problem for a class of axially symmetric bodies: Jour. Fluid Mech., v. 7, p. 529-549. PARK, Y. A., AND PILKEY, O. H., 1981, Detrital mica: environmental...
1983
Passive Margin Stratigraphy: Chapter 8
Charles L. Angevine, Paul L. Heller, Chris Paola
AAPG Special Volumes
... glacioeustatic variations cause symmetric rises and falls. The long-term sea-level fall is based on a reconstruction by Kominz (1984). Onlap curve...
1990
Crystallographic Influences on Intergranular Pressure Solution in a Quartzose Sandstone
Brian D. Hicks, Kenneth R. Applin, David W. Houseknecht
Journal of Sedimentary Research (SEPM)
... in an orthorhombic packing arrangement, a plot of the poles to the contact planes would be radially symmetric about the maximum stress vector. Thus...
1986