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The AAPG/Datapages Combined Publications Database
Showing 34,457 Results. Searched 200,357 documents.
Phase-encoded waveform inversion for multiples
Yike Liu, Bin He, Xiao-Bi Xie, Yingcai Zheng
International Meeting for Applied Geoscience and Energy (IMAGE)
... multiple because it does not involve any free surface reflection. When using equation 1 for velocity updating, the effect of multiples has been included...
2022
Flow Behavior of Ponded Turbidity Currents
Marco Patacci, Peter D.W. Haughton, William D. Mccaffrey
Journal of Sedimentary Research (SEPM)
... in the ponded suspension. Waves are manifested both in the vertical and the horizontal component of the velocity field, and they describe an orbital motion (Fig...
2015
EXTENDED ABSTRACT: Applications of Wave Imaging Technologies to Improve Deep Gulf Prospecting
Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, Oscar E. Ramirez
GCAGS Transactions
..., and the associated velocity anomalies hamper seismic prospecting on PSTM images in two ways. The best known effect is the “time sag.” The second, more...
2010
Subsurface Formation Pressure Gradient vs. Slope: Perception and Pitfalls
Selim S. Shaker
GCAGS Transactions
...Subsurface Formation Pressure Gradient vs. Slope: Perception and Pitfalls Selim S. Shaker 2024 121 130 Vol. 73 (2024) Distinguishing the difference...
2024
Formation pressure modeling using offshore seismic data
Weilai Pei, Lei Han, Chunyuan Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... indicates mud density log, while cyan dots are measured pressure gradient. Purple lines are predicted pore pressure using inversed pre stack velocity...
2024
Intra-Muda Shallow Gas in Cumi-Cumi PSC, Natuna Sea - a Driller's Nightmare Becomes a Geophysicist's Dream
Martin Bennett
Indonesian Petroleum Association
... is perturbed by a gas effect above the observed flat spot depth of 525ms. Figure 7. Map of the difference in interval velocity between observed data and those...
2000
Hydrodynamic analysis of pipe-wall thinning due to flow accelerated corrosion
Hiroki Sekiguchi, Hitoshi Mikada, Junichi Takekawa, Shibo Xu
International Meeting for Applied Geoscience and Energy (IMAGE)
... experiment. We simulate the faster flow field with the lattice Boltzmann method (LBM) to investigate the effect of different flow fields on FAC...
2022
Abstract: Multi-Disciplinary Pore Pressure Prediction : Reconciliate Geophysics and Basin Modeling to Control Risks and Uncertainties in Drilling Operations (Geophysics Poster 27)
G. Lecante, P. Wojciak, N. Bianchi
Geological Society of Malaysia (GSM)
... the coupling effect of pressure, overburden, effective stress, fracturation gradient, porosity, fluid density, temperature, permeability. On the other hand...
2011
POSSIBLE FREE CONVECTION IN THICK GULF COAST SANDSTONE SEQUENCES
PAUL E. BLANCHARD JOHN M. SHARP, JR.
Fort Worth Geological Society
... with isothermal, impermeable boundaries. The cell patterns are affected by the occurrence of mixed convection (Figure 2). For low velocity horizontal...
1985
Geopressure Prediction Uncertainties in Deepwater
Search and Discovery.com
N/A
Optimization of Gas Lift Allocation in Multi-Well System, a Simple Numerical Approach
Ulfia Rahma Fitra, Silvya Dewi Rahmawati, Pudjo Sukarno, Edy Soewono
Indonesian Petroleum Association
... method, we can calculate the gradient of nodes along the curve. Further, with Gradient Method, gas allocation was iterated, we obtain the optimum total...
2015
Fracture Estimation Using a P-Wave Azimuthal Attribute Analysis in the Cagüi Area: Abstract
Jorge Monsegny, Carlos Piedrahita
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... amplitude, AVO gradient, velocity and traveltime. Each one of them shows azimuthal dependent variation which is evidence of a fracture induced anisotropic...
2009
Near-Surface Characterization for Seismic Exploration Based on Gravity and Resistivity Data; #41892 (2016)
Jan Mrlina
Search and Discovery.com
... (block density) deficit which consequently develops the decrease of seismic velocity. In Figure 1 I present a simple example of the gravity effect...
2016
Effective Use of High Density VSP Measurements to Predict Pore Pressure and Estimate Mud Weight Ahead of Drilling in the Mahakam Delta, Indonesia
Mohammed Badri, Stephane Gazet, Gregoire de Tonnac
Indonesian Petroleum Association
... trend line. Pore pressure gradient can be related to velocity or slowness using several published techniques. Eaton (1972, 1975) developed four...
2005
A Comparison of Depth Conversion Methods in Buntal Gas Field, Block B, Natuna Sea, Indonesia
Irfan Yuliandri Syukri, John Hughes, Medi Medianesterian
Indonesian Petroleum Association
... instantaneous velocity-depth trends. Method 1 (linear average velocity-time function) and method 2 (2nd order polynomial time-depth) account for this effect...
2014
Shallow Temperatures and Thermal Regime in the Hydrocarbon Province of Tierra del Fuego
Gary W. Zielinski , Peter M. Bruchhausen
AAPG Bulletin
... surface temperature, g is the geothermal gradient, A is the amplitude of the annual surface variation, and ^ohgr its angular velocity, tO is the time...
1983
The effects of seismic anisotropy on mining seismology
Andrew King
Petroleum Exploration Society of Australia (PESA)
.... In sedimentary environments, seismic velocity is typically anisotropic, usually being somewhat faster in a horizontal direction than in the vertical...
2019
Abstract: Using Viscoplastic Stress Relaxation Theory on Core Measurements to Determine the Least Horizontal Principal Stress; #91201 (2022)
Kevin L. Mccormack
Search and Discovery.com
... geomechanical laboratory measurements of the horizontal Young’s modulus, which allows me to circumvent the need for the anisotropic velocity model...
Unknown
Abstract: Raypath-Consistent Shear Wave Statics; #90224 (2015)
Raul Cova, David Henley, and Kris Innanen
Search and Discovery.com
... to very low velocity values the magnitude of the S-wave statics is several times larger than the P-wave statics, producing a very destructive effect...
2015
Seismic velocity detrending and well calibration workflow
Gastón Bejarano Gerke
International Meeting for Applied Geoscience and Energy (IMAGE)
... velocities show an anisotropy effect compared to borehole velocities, because they come from a mostly horizontal analysis of the formations. depart...
2024
Dynamics of Sediment Movement
Gerard Middleton, John B. Southard
Special Publications of SEPM
... by a strong velocity gradient, and that flat grains may take up an imbricated orientation oblique to the Thus, if we try to apply the usual drag equation...
1984
3.0 General Ramifications of Abnormal Pore Pressures
P. E. Gretener
AAPG Special Volumes
... and preservation of hydrocarbons will depend on other factors as well, in particular the prevailing average geothermal gradient. 3.9 Effect...
1981
Structure and Sedimentological History of the Overbank Deposits of a Mississippi River Point Bar
Pulak K. Ray
Journal of Sedimentary Research (SEPM)
... to local turbulence. Whenever upper flow regime horizontal laminations are present they overlie the type-I units suggesting that the current velocity...
1976
Environmental and Geophysical Interpretation of Heat-Flow Measurements in Black Sea: Structure
Albert Erickson , Gene Simmons
AAPG Special Volumes
... of measurements, the gradients within each set have nearly the same shape and magnitude. Local horizontal variations in the thermal gradient are unlikely...
1974
Abstract: AVO Crossplotting I: Processing and Calibration Considerations; #90171 (2013)
Heath Pelletier
Search and Discovery.com
... a significant effect on the behavior of the data populations being interpreted in AVO crossplot space. Rotating intercept/gradient crossplot slopes (what Gidlow...
2013