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The AAPG/Datapages Combined Publications Database
Showing 2,007 Results. Searched 200,626 documents.
Robust multichannel prestack AVA inversion based on elastic L1/2 norm
Nanying Lan
International Meeting for Applied Geoscience and Energy (IMAGE)
... the derivation of the first-order necessary conditions. Concretely, let the first-order derivative of equation 11a with respect to the variable z be zero...
2023
Integrated geological and geophysical interpretation of the complex Timor Orogen: Insights into the tectonic and basin evolution
Francelino A. Xavier-Conceicao, Mateus da Costa, Joana de Sousa, Jennifer Eccles, Lorna Strachan, Brendan Duffy
International Meeting for Applied Geoscience and Energy (IMAGE)
... into Tectonic and Basin Evolution Figure 2. Magnetic 2nd Vertical Derivative overlaid by the Reduce-to-Pole with 50% transparency, the tectonostratigraphic...
2023
Comparison of potential fields inversion techniques for basement relief recovery: A case study from the Taubaté Basin, Brazil
Fernanda C. M. Hermes, Guilherme Lenz, Leonardo Miquelutti, Marco Cetale
International Meeting for Applied Geoscience and Energy (IMAGE)
... will be obtained using the PyVista package (Sullivan et al., 2019). We will also perform data filtering (ex 1st vertical derivative) to aid us...
2023
Petrophysical Interpretation of Multi-Frequency Electromagnetic Measurements in Clay- and Conductive-Mineral-Rich Mudrocks
Siddharth Misra, Yifu Han
Unconventional Resources Technology Conference (URTEC)
... measurements were obtained. We implemented a first order central-difference formula to approximate the derivative of measurement-frequency-specific cost...
2016
A Synergistic Approach for Generating Basement Reservoir Fracture Model : A Case Study from Mumbai High Basement Reservoir
S. K. Mukherjee, S.C Rao, Rakesh Guru, S.N. Chitnis, B. B. Ray
Unconventional Resources Technology Conference (URTEC)
...) and deterministic pressure derivative curves derived in two wells which have flowed oil from basement. Figure 9: Pore Pressure and Fracture pressure profile...
2016
Integrated View of Return on Social Investment Between CSR and Flawless Project Assurance
Monica Rachmawati
Indonesian Petroleum Association
... or burdening initiatives. RoSI calculation model is developed to articulate the success rate and derivative output of Community Development program generating...
2014
Recovering the invisible signals for urban traffic monitoring using distributed acoustic sensing
Yangkang Chen, Hang Wang, Rui Min, Yunfeng Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
... derivative of the deformation) is determined by the speed of the car. Hence, the strength of the car signals is ideally proportional to the weight of the car...
2024
Development of Non Petroleum Base Chemicals for IOR in Indonesia
S. Purwono, B. Murachman, Hardjono, Rochmadi, W. B. Sediawan, S. Poerodiprodjo, M. Datun, I. W. Sumarinda, J. Setyowiyoto, R. S. T. Kartoatmodjo, Sumaryana, I. Doria, S. Wiroatmodjo
Indonesian Petroleum Association
..., and not petroleum derivative. From those five criteria, there are several possible sources of chemicals for EOR such as lignin extracted from palm oil...
1998
Regional Gravity And Aeromagnetic Anomalies In West Texas
G. R. Keller, W. J. Peeples
West Texas Geological Society
.... This value was obtained by comparing the differences in the overlap at profiles at the borders of the two surveyed areas. A second vertical derivative...
1985
Elastic FWI for joint Vp, Vs and density inversion
Peng Shen, Uwe Albertin, Hermes Malcotti, Josh Haataja
International Meeting for Applied Geoscience and Energy (IMAGE)
... particle velocity, τ be the adjointstate stress under the Voigt notation, and ∂t∗ be the time partial derivative in reverse-time, the adjoint-state wave...
2024
Near-surface modeling by surface wave tomography inversion in oil and gas exploration
Wen Peng, Le Li, Zhonglin Cao, Guangying Wang, Pengfei Duan, Heng Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... between edge AB and AC. � is the slowness within ∆���. �� is the length of the AC edge. According to Fermat's principle, taking the derivative of Eq. (7...
2024
Geophysical expression of the Meyers Crater, a new meteorite impact crater discovered in the Coolgardie Goldfield of Western Australia
Jayson Meyers, Sharna Riley, Wesley Groome
Petroleum Exploration Society of Australia (PESA)
... with 0.5 vertical derivative filter image showing crater structure outline (black), Brilliant open cut gold mine outline (red) and small gold...
2019
Application of passive seismic and AEM to 3D paleochannel imaging: Capricorn Orogen
Sara Jakica, Lucy Brisbout
Petroleum Exploration Society of Australia (PESA)
... and drill holes, b) Field photograph showing the sandy, lag dominated cover and a Tromino, c) First vertical derivative of the aeromagnetic data...
2019
Three-dimensional joint inversion of seismic and gravity data using Gramian constraints and Gauss-Newton approach
Hao Zhu, Hongzhu Cai, Xinyu Wang, Ziang He, Lichao Liu, Xiong Xiong, Xiangyun Hu
International Meeting for Applied Geoscience and Energy (IMAGE)
... for seismic data and the forward kernel matrix for gravity data, respectively; 𝑫 𝐺 denotes the first derivative of the Gramian operator with respect...
2024
Electromagnetic and electrical methods applied to mapping coked coal A case study from the Bowen Basin, Eastern Australia
Jonathan Lowe, James Reid, Eric Battig, Scott Napier, Dan Eremenco
Petroleum Exploration Society of Australia (PESA)
... of sea ice thickness. Annals of Glaciology, 44, 217223. Figure 11. HELITEM first vertical derivative of the total magnetic intensity showing a magnetic...
2019
Prediction of porosity in CO2 sequestration tight reservoirs based on multi-source and multi-scale data fusion
Ping Lu, Peixue Jiang, Ruina Xu, Huaqing Xue, Haojie Li, Lei Yu, Jiashu Han
International Meeting for Applied Geoscience and Energy (IMAGE)
... Instantaneous_Frequency, Instantaneous_phase, Original seismic, RMS_amplitude, Dip deviation, Variance, and First_derivative as feature variables...
2024
Geological investigations with high spatial resolution WV-3 satellite imagery and regional geophysics at the Haib Cu porphyry, Namibia
R. D. Hewson, E. Chinkaka, M. van der Meijde, B. Baugh, N. Titus, J. P. Mubita
Petroleum Exploration Society of Australia (PESA)
... on first vertical derivative reduced-to-the-pole magnetic data, highlighted several structures related to the older NE-SW Orange River and younger NW-SE...
2019
Harmonizing U.S. heat flow data with IHFC standards: A significant step toward enhancing geothermal energy exploration and development
Mohamed Shafik Khaled, Bissett Young, Aysegul Turan, Ken Wisian
International Meeting for Applied Geoscience and Energy (IMAGE)
... the temperature derivative with respect to depth. Geoscientists can outline thermal gradients by measuring heat flow and examining temperature-depth...
2024
Time-Lapse Microgravity to Monitoring Fluid Movement Estimation, Water Saturation, Pressure & Density Changes in Reservoir (Case Studies On Field TFQ, Sumatera)
Taufiq, Ermin Retnowati, Ahmad Zaenudin
Indonesian Petroleum Association
.... By knowing the value of density changes in the reservoir from the previous data processing, we can derivative the density changes based on the water...
2015
Optimizing Composition of Sodium Lignosulfonate and Oleic Acid to Reach IFT 10-3 Mixed Surfactant on EOR Operation
Muhammad Faisal Afif, Arini Muthiah Rosmaya Putri, Kurniasiwi Rahmawati, Utari Nuravifah
Indonesian Petroleum Association
... sulfonates are an example of surfactants commonly used in chemical injection EOR. They are derivative products from petroleum. The benefit...
2015
Managing Observation Reports for Incident Prevention Through Development of Computer-Based Application in Energi Mega Persada
Ricky Okto Lesmana, Maya Averiantoro
Indonesian Petroleum Association
... Investigation Report modules. Each of them, contain several derivative modules to process data. Unsafe Report Modules These modules are used to managed, process...
2016
Risks of Microseismic Fracture Mapping Mis-interpretation: Source-Dependent Sensitivity Induced by Surface Arrays Observational Bias
Pierre-Francois Roux
Unconventional Resources Technology Conference (URTEC)
...ts the derivative of the source time function, assumed here as triangular-shaped: 𝑆̇( 𝜔) ∝ 𝑠𝑖𝑛𝑐 2 𝜔𝜏 2 2670397 4 Figure 3: Velocity model. From l...
2017
Horizontal Wells as a Solution to Produce Gas Bearing Low Permeability Sands in the G Zone Reservoirs of the Tambora Gas Field, East Kalimantan, Indonesia
A. Gautama, P. Grivot, S. Gunawan, F. Larrouquet
Indonesian Petroleum Association
... a very good match on the derivative pressure, and it confirmed that the PI was over 5 times better than that of the corresponding vertical well...
2003
Airborne gamma-ray spectrometry inversion signatures of Hicks Dome area
Jessica D. Weihermann, Yaoguo Li, Anne E. McCafferty
International Meeting for Applied Geoscience and Energy (IMAGE)
... will compare geochemical data with our results. suggesting a broader area for rare earth element exploration. This derivative product also considers...
2024
Sequence Boundaries: A Proposed Nomenclature for the Mesozoic and Cenozoic
James W. Mulholland, Robert J. Kuryvial
Rocky Mountain Association of Geologists
..., a simplified derivative of the chronostratigraphic/eustatic cycle charts of Haq et al. (1988). Figure 2 shows the proposed sequence boundary...
1992