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The AAPG/Datapages Combined Publications Database
Showing 1,264 Results. Searched 200,636 documents.
Magnetotelluric Soundings in the Ouchita Thrust Belt of Central Texas
J. G. Muncey , W. J. Ehni
GCAGS Transactions
.... This suggests that no artifacts have been introduced in the smoothing process, and that this possibility need not be considered further. GEOLOGIC...
1985
Beyond chi-squared: Additional measures of the closeness of a model to data1
Alan G. Jones
Petroleum Exploration Society of Australia (PESA)
...ns the complexity of the model increases, as seen by the increasing Roughness, but that levels off as the smoothing term becomes significant. The DW autocorrelati...
2019
Main Features of the Devonian History of the USSR
N. Y. Tikhy
CSPG Special Publications
... and accumulation of a red-coloured molasse about 2 km thick. The intensive sub-aerial erosion of the borders of the Tethys gradually gave way to a smoothing...
1967
Drilling Optimization: RSS Solution of Vertical Well Trajectory for Cost Savings and Macro Tortuosity Elimination Case Study: Lofin-2, Seram Island
Raynaldo Panjaitan, Boyke Daud Sibarani
Indonesian Petroleum Association
... undulation is the additional effort for smoothing the wellbore (usually with back-reaming operation) and the fact that it would require more time...
2016
Refinement and Spectral Analysis of Plio-Pleistocene Oxygen and Carbon Isotopic Records
Dwight M. Trainor , Douglas F. Williams , Ian Lerche
GCAGS Transactions
... spectra. This defined noise level will be removed from the data and the final results will be subject to some smoothing, or bandwidth averaging technique...
1988
Calculating Sandstone-Shale Ratios from Growth Normal Fault Dips on Seismic Profiles
R. E. Bischke , J. Suppe
GCAGS Transactions
... promise. One is to use pre-stack or sonic velocities to estimate depth to reservoir. The other is to investigate statistical smoothing techniques...
1990
SPE 49025: Geostatistical Analysis of Petrophysical Data and Modeling of Fluid-Flow Effects in Carbonate Outcrops
James W. Jennings, Jr., Stephen C. Ruppel, W. Bruce Ward
West Texas Geological Society
... = smoothing filter constant x = transect location α, β = semivariogram shape parameters γ = semivariogram Γ = gamma function Subscripts short = short-range...
1999
Understanding the Impact of Sampling Resolution on the Efficacy and Utility of Elemental Datasets in the Delaware Basin
Milly Wright, Brian Driskill, Nahysa Martinez, Eliza Mathia
Unconventional Resources Technology Conference (URTEC)
..., but core that is analyzed at a higher frequency can be readily integrated by the application of moving averages or data smoothing techniques. 3...
2019
Oversize Oxbows: Tentative Dates, Effects, and Risks
William F. Tanner
GCAGS Transactions
... apart, but the underlying data points are about 50 years apart. Seven-point smoothing and two-point merging were done; this prevents the first three...
1992
Shongaloo Field: A Recent Smackover (Jurassic) Discovery in the Arkansas-Louisiana State Line Graben
William D. DeMis, Jeffrey V. Milliken
GCAGS Transactions
..." through east-west trending "B-0" isopachs demonstrates the gradual "smoothing" and southward progradation of the Smackover shorelines through time...
1993
Shallow Velocity Model Building Considerations for Prestack Depth Migration in Unconventionals
Mike Perz, Josef Heim, Candace Bruins
Unconventional Resources Technology Conference (URTEC)
... the data, thereby degrading event continuity after migration. Such perturbations include smoothing operations, as well as operations aimed...
2019
Investigation of Time-series Clustering to Forecast Wells with a Short Producing Life
Reza Khaksarfard, S. Hamed Tabatabaie, Louis Mattar
Unconventional Resources Technology Conference (URTEC)
... of smoothing was to facilitate clustering, but in fact it did not seem to make much difference. The data for each well was also normalized by peak rate...
2019
Stress-Displacement Analysis of Bedding Planes in the Near-Wellbore Region During Drilling
Bery Hoshiar Tofiq, Alberto Lopez Manriquez
Unconventional Resources Technology Conference (URTEC)
... Nodes 600405 Elements 139620 Size function Adaptive Relevance center Fine Smoothing Medium Span Angle Center Fine Method Multizone...
2020
Imaging of Subsurface Velocity Structure on Volcanic Area of South East Java: An Application of Passive Seismic Ambient Noise Tomography for Sub-Volcanic Hydrocarbon Exploration
Pongga Wardaya, Erlangga Septama, Vida Irine Rossa, Richie Rahmat Pratama, Rusalida Raguwanti
Indonesian Petroleum Association
... for damping and smoothing which were decided to be 80, adapted from Zulfakriza, (2014). Result for group velocity inversion is depicted by Figure 4 where...
2021
Integration of Geochemical and Petrophysical Measurements from Drill Cuttings for Unconventional Reservoir Characterization, Converse County, Powder River Basin
Brett Wittman, Matt Hemenway, Michael Dick, Dragan Veselinovic, Taylor Kenney, Derrick Green, Harry Rowe
Unconventional Resources Technology Conference (URTEC)
.... Additionally, cuttings are often collected at varying intervals between 5ft to 100ft, which can cause a smoothing effect by lumping different rock...
2020
Underwater Study of Ripples, Southeastern Lake Michigan
Richard A. Davis, Jr.
Journal of Sedimentary Research (SEPM)
... as being transitional with common and rounded ripples and probably resulted from the smoothing off of the crests as energy increased up the slope...
1965
A Proposed Methodology to Assess Production Performance for Shale Oil and Gas Wells
E.L. Dougherty, T.A. Blasingame
Unconventional Resources Technology Conference (URTEC)
... is exceptional, smoothing out the minor deviations in the rate behavior). In fairness, not all of the Marcellus Shale cases in this work were of the same...
2021
Autoregressive and Machine Learning Driven Production Forecasting - Midland Basin Case Study
I. Gupta, O. Samandarli, A. Burks, V. Jayaram, D. McMaster, D. Niederhut, T. Cross
Unconventional Resources Technology Conference (URTEC)
... Average (ARIMA), and Exponential Smoothing (ETS) have been the dominant forecasting approaches in other fields such as supply chain management...
2021
Physics-Based and Data-Driven Models to Predict Production Drivers in the Vaca Muerta Formation
Leonardo Cruz, Jesus Ochoa
Unconventional Resources Technology Conference (URTEC)
... outliers are identified and removed using a non-parametric technique based on distribution smoothing and rejection threshold arguments. In this study...
2021
Improved Nanoscale Image-based Reservoir Characterization using Supervised Machine Learning
Shannon L. Eichmann, Poorna Srinivasan, Kevin Kenga, Mohammed Khan, Fabian Duque, Felix Oyarzabal, James Howard, Shawn Zhang
Unconventional Resources Technology Conference (URTEC)
... component. Although noise is inherent in all images even after applying a smoothing filter, the SML method can effectively distinguish single-pixel objects...
2021
Application of Deep Learning Neural Networks to Petrophysical Property Prediction: Case Study from the Powder River Basin
Cameron Snow
Unconventional Resources Technology Conference (URTEC)
... of manually interpreted tops and then gridded using a minimum curvature method with a mild post-grid smoothing algorithm applied. The results were...
2022
Threshold Conditions for Episodic Beach Erosion along the Southeast Texas Coast
Gibeaut, James C., Gutierrez, Roberto, and Hepner, Tiffany L.
GCAGS Transactions
... at the tide gauge is computed by smoothing 181 1-second readings. The standard deviation of these 181 readings is higher during high waves, which cause high...
2002
A Comparative Study for Probabilistic EUR Forecasting in Shale Gas Reservoirs Using Early-Time Production Data
Xiaowen Duan, Xiaolin Xu, Yuewei Pan, Junlei Wang, Ling Fu
Unconventional Resources Technology Conference (URTEC)
... is just to smoothing the curve with fixed transition and other parameters used in type well. As we can see, with limited production data...
2024
Improving Accuracy of an Auto-Forecasting Engine Using a Bayesian Maximum Likelihood Framework for Empirical Decline Curves
Doug McMaster, David S. Fulford, Stephen Krughoff, Zidong Liu, Brennan Medina
Unconventional Resources Technology Conference (URTEC)
... settings include filtering outliers, smoothing data, decline parameters ranges, and b-parameter ranges. An additional two settings are introduced in the MLE...
2024
Geologic Implications of Aeromagnetic Survey of Clearfield-Philipsburg Area, Pennsylvania
H. R. Joesting , Fred Keller, Jr. , Elizabeth King
AAPG Bulletin
... and compilation of the data, the obvious chevrons were eliminated by s oothing. The maximum shift of any contour as a result of the smoothing...
1949