Abstract: Ground Roll Attenuation via SVD and Adaptive Subtraction; #90171 (2013)

Peter Cary and Changjun Zhang

Search and Discovery.com

.... It essentially makes small time-varying adjustments to the amplitude and phase of the estimated ground roll in order to better match the real ground roll...

Abstract: Resolving The Discrepancies Between Vertical Seismic Profiles And Petrophysical Logs, At Least A Few Of Them; #90213 (2015)

John D. Logel and Rick Kuzmiski

Search and Discovery.com

... phase matching and exhibits a strong time varying effect. The easiest explanation for this is attenuation or ‘Q’. The concept of attenuation ‘Q’ has been...

Stratal Slicing Makes Seismic Imaging of Depositional Systems Easier, by Hongliu Zeng, #40196 (2006).

Search and Discovery.com

Spectral Balancing Can Enhance Vertical Resolution, by Kurt J. Marfurt and Marcilio C. de Matos; #41357 (2014).

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Finite-difference modeling of marine vibrator sources

Khalid Almuteri, Jeffrey Shragge, Paul Sava

International Meeting for Applied Geoscience and Energy (IMAGE)

... in a generalized computational coordinate system. Here, we solve the AWE for a time-varying mesh without a need for repeated velocity model interpolation...

Abstract: Interactive 3D Modeling and Visualization of Well Configurations and Trajectories in Reservoir Simulation Post-Processing; #90174 (2014)

Sowmya Somanath, Nicole Sultanum, Jonatas Medeiros, Emilio Vital Brazil, Sheelagh Carpendale, Ehud Sharlin, Carla Dal Sasso Freitas, Eric Mackay, and Mario Costa Sousa

Search and Discovery.com

... of time-varying reservoir visualization are the very dynamic behaviours of the data, the many complex interactions among the reservoir properties...

Abstract: The Promises and Pitfalls of Integrating Geodynamic with Petroleum System Modeling; #90257 (2016)

Lars Rüpke, Daniel Schmid

Search and Discovery.com

... that illustrates how strongly the time-varying rate of sedimentation deposition affects strain partitioning, temperature, and mantle serpentinization...

Deep Sea Stratigraphy: Abyssal Sediment Waves

G. S. Mountain and B. E. Tucholke

AAPG Special Volumes

... stacking included spherical divergence correction, predictive deconvolution, time-varying filtering from 15 to 80 Hz, time-varying gain and trace...

Abstract: Seismic Frequency Wave Speed Measurements on Micro-cracked, Fluid-saturated Synthetic Rock; #90172 (2014)

Heather Schijns, Ian Jackson, Douglas R. Schmitt

Search and Discovery.com

... fixed while the bottom is driven using time-varying electromagnetic drivers, with the polarization of the applied forced depending on whether...

Reservoir Characterization of Plover Lake Heavy-Oil Field, #20297 (2015).

Larry Lines, Joan Embleton, Mathew Fay, Steve Larter, Tony Settari, Bruce Palmiere, Carl Reine, Douglas Schmitt

Search and Discovery.com

... seismology and rock physics measurements to link time-varying seismic properties to reservoir conditions. Further experiments are being planned. Conclusions...

Seismic attenuation extracted from isolated traffic signals

Yumin Zhao, Yunyue Elita Li, Bei Li, Wei Luo, Zhaoyin Liu, Yuxuan Zhou

International Meeting for Applied Geoscience and Energy (IMAGE)

... the time-varying seismic attenuation for each day by estimating the slope of the linear relationships between the differences of two amplitude spectra...

Thrust Faulting and Hydrocarbon Generation: REPLY

Janell D. Edman , Kevin P. Furlong

AAPG Bulletin

.... Tip Top site, Warner and Royse (1987) constant gradient model (dashed lines) contrasted with time-varying gradient incorporating thermal disequilibrium...

ERT and crosswell EM imaging of CO2: Examples from a shallow injection experiment at the Carbon Management Canada CaMI FRS in Southeast Alberta, Canada

David Alumbaugh, Michael Wilt, Edward Nichols, Evan Um, Marie Macquet, Donald C. Lawton, Dennis Rippe, Kerry Key, David Myer

International Meeting for Applied Geoscience and Energy (IMAGE)

... deploying a magnetic solenoid source in the non-steel cased well and energizing it with a time varying current. This produces a time varying magnetic...

Qualitative and Quantitative Processing of Side Scan Sonar Data

F.S. Dwan, A.L. Anderson, T.W.C. Hilde

Circum Pacific Council Publications

... pattern, time-varying gain, processing gain, transmission loss, absorption, insonified area, and grazing angle effects. Sea floor classification can...

Delineating cobalt targets from a galvanic and inductive source Sub-Audio Magnetics (SAM) at the Carlow Castle project, Western Australia

Daniel Eremenco, Russell Mortimer, Ed Mead

Petroleum Exploration Society of Australia (PESA)

... the magnetic field response generated by a time varying artificial electrical signal channelled between two current electrodes. This electric current...

Fast Optimization of the Net Present Value of Unconventional Wells Using Rapid RTA

Leopoldo Matias Ruiz Maraggi, Mark P. Walsh, Larry W. Lake, Frank R. Male

Unconventional Resources Technology Conference (URTEC)

... model’s production history-matches. Step 4 generates synthetic production histories using DCA and Rapid RTA varying the cluster spacing from 20 to 60 ft...

Abstract: Time-Frequency Representation of Microseismic Signals using the Synchrosqueezing Transform; #90187 (2014)

Roberto H. Herrera, Jean-Baptiste Tary, and Mirko van der Baan

Search and Discovery.com

... and natural sources. In both cases the signal has similar oscillatory characteristics and could be represented as the sum of individual time-varying...

Abstract: Geometry Factor for near Surface Borehole Resistivity Surveys: a Key to Accurate Imaging and Monitioring; #90224 (2015)

Kun Guo, Bernd Milkreit, and Wei Qian

Search and Discovery.com

... should be fully repeatable and able to monitor time varying changes. However, data acquisition system mislocations as well as borehole deviation effects...

Multi-attributes and Seismic Interpretation of Offshore Exploratory Block in Bahrain„A Case Study, #41919 (2016).

Suresh Thampi, Aqeel Ahmed, Yahya Al-Ansari, Ali Shehab, Ahmed Fateh, Anindya Ghosh, Ghada Almoulani

Search and Discovery.com

.... The resulting surfaces were consistent with the well markers. Velocity Modeling and Depth Conversion A 3D time model was built using the defined geometry...

A New Approach to Time Depth Conversion and Depth Error Estimation for 2D Interpretation Using Seismic Velocities

Rosidah Hardiani, Sanisah Soed, Lothar Schulte

Indonesian Petroleum Association

... based on average velocities. Typically depth conversion using interval velocities is based on a layer cake model. This means that the time thickness...

Custer Formation of Texas: DISCUSSION

Leroy T. Patton

AAPG Bulletin

... the writer is in agreement. Since the uppermost Permian beds of Texas evidently record a time of varying and shifting conditions of deposition both from...

Numerical Simulation of FDI Impacts on Parent Well LPO and Child Well EUR in S&T

Han Young Park, Yunhui Tan, Satyajit Taware, Junjie Yang, Zhenzhen Wang

Unconventional Resources Technology Conference (URTEC)

... the simulation model, and use it as proxy for child well EUR loss. Initially, we construct a structured grid model with time varying transmissibility...

2.3 Detached Sediments in Extensional Provinces: 2.3.3 Gravity Gliding: Structure of the Mexican Ridges Foldbelt, Southwest Gulf of Mexico

R. T. Buffler

AAPG Special Volumes

... by Texaco, Inc. 1) CDP gather 2) P-wave muting 3) Gain modification 4) Moveout/CDP stack 5) Time varying filter, 2600-5000, 5/10-30/40, 7000-13000...

Marine Acoustical Seep Detection

William E. Sweet, Jr.

AAPG Bulletin

... gap was bridged and the company technician informed the writer that the instrument had a time-varying gain which blocked all signal return from...

Converted-Wave Prestack Time Imaging without using P-Wave

Search and Discovery.com

... conversion point) binning depend on each other due to time varying nature of conversion-points. In pre-processing, velocity analysis usually is done...