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The AAPG/Datapages Combined Publications Database
Showing 33,158 Results. Searched 195,696 documents.
Phase Unwrapping: A Review of Methods and a Novel Technique
Sam T. Kaplan
Search and Discovery.com
.... It is this branch-cut that manifests as 2S discontinuities in phase, and various unwrapping methods remove its effect, allowing us to work with the logarithm...
Unknown
Abstract: Automated Seismic-to-well Ties Using Dynamic Time Warping; #90174 (2014)
Roberto H. Herrera and Mirko van der Baan
Search and Discovery.com
... of both signals. The effect of the DTW over the signals while finding the best match is shown in Figure 1 (right). Instead of having a one-to-one comparison...
2014
Abstract: Quantitative Predication for Reservior Porosity via AVO; #90187 (2014)
Li Ang, Chen Shumin, Zhang Erhua, and Ju Linbo
Search and Discovery.com
... domain, the two layers due to the tuning effect can also be identified, as well as improve the resolution of the far offset traces, and also expand...
2014
Permeability: Part 5. Laboratory Methods
Henry A. Ohen, David G. Kersey
AAPG Special Volumes
... additional boundary conditions--gas slippage and inertial effects--must be considered. Gas Slippage and Inertial Effect When gas is used to determine...
1992
Abstract: Crack-tip Stress Field, Coulomb Failure, and the Spectral Characteristics of Tensile Rupture; #90174 (2014)
David W. Eaton and Chad M. Hogan
Search and Discovery.com
... and the distribution of aftershocks. Subject to excedance of a threshold value of time-dependent Coulomb stress, microseismicity is postulated to occur at random...
Unknown
Visualizing Fracture-Matrix Fluid Exchange in Unconventional Tight Mudstone
John J. Valenza, Johnathan Moore, Sean Sanguinito, Dustin Crandall
Unconventional Resources Technology Conference (URTEC)
... (decrease) in Xe concentration. A 3D Gaussian blur filter (Schindelin et al. 2012) was applied with sigma=2 to reduce image noise due to the polychromatic...
2022
Anomalies Indicate Potential
Aslak Myklebostad, Svein Ellingsrud
GEO ExPro Magazine
... of stacks to achieve the required signal to noise ratio. The receivers are equipped with an active verticality correction for the vertical electric dipole...
2019
Recovery of Various Fractions of Crude Oil in Porous Media at the Pore Scale: An Application of Synchrotron X-Ray Microtomograph
Jaydeep Ghosh, Geoffrey R. Tick
Oklahoma City Geological Society
... media: the effect on mass transfer rate coefficients: Environmental Science and Technolology, v. 33, no. 8, p. 1286–1292. Larson, R. G.; Davis, H...
2010
Abstracts: Recovery of Low Frequency Data from 10Hz Geophones; #90173 (2015)
Malcolm B. Bertram, Gary F. Margrave
Search and Discovery.com
... filter boosts the noise in this area. A remnant of this inverse filter footprint is visible at the end of the gather, but overall the record now shows...
2015
Environmental Factors Associated with Hydrates Extraction; Physical and Chemical Mitigation for a Marine Consent, #80731 (2020).
Kate Bromfield, Brett Rogers,
Search and Discovery.com
... of Water & Atmospheric Research Ltd (NIWA), Wellington, New Zealand, NIWA Client Report No: 2018139WN, 190 p. Das, P., and P. Tiwari, 2018, The Effect...
2020
Marine Seismic Sources: Part IX: Seismic Surveys and Fish
Martin Landrø, Lasse Amundsen
GEO ExPro Magazine
.... The sources of anthropogenic sounds are many. Boats and ships are a major source of noise, and sonars, not only used by navies but also by the shipping...
2011
Controlled-Source Electromagnetic (CSEM): A Game Changing Technology for Frontier Deepwater Exploration? A Users Perspective
Herry Maulana
Indonesian Petroleum Association
... depths (~500-600m), which contributes airwave noise to the overall detrimental effect of the seabed bathymetry. Further processing fails to separate...
2008
A Physically Consistent Decline Analysis Method for Unconventional Wells
Jorge A. Acuña
Unconventional Resources Technology Conference (URTEC)
.... The decline analysis parameters are physically meaningful, so it is possible to quantify the effect of skin and pressure depletion on well performance...
2021
Impacting Factors on Horizontal Coal Seam Gas Well Production and Proxy Model Comparison
Qian Wang, Diane Donovan, Thomas Reay, Bevan Thompson, Iain Rodger, Fengde Zhou, Xianbo Su, Emine Şule Yazιcι
Unconventional Resources Technology Conference (URTEC)
... for the cumulative gas production and peak gas rate, respectively. As for the pairwise interactions, the combined effect of the principle permeability...
2019
Next-Generation Statistical Methods for Reservoir Modeling: Challenges and Future Potential
Jonathan Kane, Anne O'Halloran
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... models, either unconditionally, or conditioned to seismic and well data. We focus on a heuristically similar method known as ‘nonparametric Markov random...
2009
Facies classification with different machine learning algorithm An efficient artificial intelligence technique for improved classification
Partha Pratim Mandal, Reza Rezaee
Petroleum Exploration Society of Australia (PESA)
.... The algorithm learns simple decision rules from the input features easily. Random forests is an ensemble based supervised learning model. It is the most...
2019
Reward and Uncertainty in Exploration Programs: Economics of Petroleum Exploration and Production in the Arctic
Paul G. Bradley , Gordon M. Kaufman
AAPG Special Volumes
... as random variables; the values they assume indicate the number of successes that occur in a drilling program and determine, for a particular discovery...
1973
Origin of the Fabric of Laminated Fine-Grained Glaciolacustrine Deposits
Neal R. O'Brien , Sarah Pietraszek-Mattner
Journal of Sedimentary Research (SEPM)
... bedding and random particle orientation indicate continuous deposition of flocculated sediment during the deposition of a typical glaciolacustrine...
1998
Induced Fracture Dimension Prediction Method Based on Production and Pressure Data During Waterflooding
Hendry Setiawan Lie, Dedy Irawan, Doddy Abdassah
Indonesian Petroleum Association
... stationary for balanced injection and production. Hagoort et al. did not consider the effect of fluid mobility ratios different from unity...
2012
Completing the Picture
James Dodson
GEO ExPro Magazine
... that also benefits from a high signal-to-noise ratio at the majority of wavelengths when compared to conventional gravity when acquired from a moving...
2014
New Insights into the Deep-Water Otway Basin - Part 1. Integrated Depth Imaging Workflows Unravelling the Subsurface
Si Ying Lee, Bee Jik Lim, Arwindran Anantan, Alexander Karvelas
Australian Petroleum Production & Exploration Association (APPEA) Journal
... seismic data to achieve a broader useable signal bandwidth and improve the signal-to-noise ratio. The enhanced low-frequency component was crucial...
2021
Imaging Shallow Reservoirs through Innovation
Jane Whaley
GEO ExPro Magazine
... the source above designs with real noise added were fed reflections soon approach the critical the streamers posed no risk, and also into our 3D seismic...
2017
Electromagnetic Imaging of Oil and Gas Traps
Professor George V. Keller, M. Tahsin Tasci, John M. Jack Jordan
Montana Geological Society
... buildup may have deep seated causes that continue well into the basement. The effect of the mound on the overlying section is dramatic...
1996
Using Depletion-Zone Microseismicity to Understand Producing Volumes
Jonathan P. McKenna, Michael H. Grealy, Michael S. Blaz, Nathan M. Toohey
Unconventional Resources Technology Conference (URTEC)
... (r) and size/quality of the events (Signal to Noise Ratio (SNR)). Figure 1shows a plot of all three variables for all stages of the stimulated pad...
2016
Model-Based Type Wells Reduce Uncertainty in Production Forecasting for Unconventional Wells
Arjun Ravikumar, W. John Lee
Unconventional Resources Technology Conference (URTEC)
... in the cluster. We demonstrate the effect of the noise and the number of wells in the cluster, on the uncertainty of the forecast. We validate this technique...
2020