Geological Impact of Sediment Transporting Events on the Washington Continental Shelf

Nancy B. Kachel, J. Dungan Smith

CSPG Special Publications

... for a ripple to migrate one wavelength Tw wave period t time u cross-shelf component of velocity ur ripple migration rate ux shear velocity (τb/ρ...

Abstract: Application of a Tomographic Velocity Model to the Prestack Depth Migration of a Buried Valley; #90172 (2014)

Oluwafemi Ogunsuyi, Douglas R. Schmitt

Search and Discovery.com

...Abstract: Application of a Tomographic Velocity Model to the Prestack Depth Migration of a Buried Valley; #90172 (2014) Oluwafemi Ogunsuyi, Douglas R...

Wave Equation Shot Migration as a Ground Roll Filter.

Francisco Ortigosa, Pedro Muñoz

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... plane is lower that half the migration velocity at a given moment during processing, will fall in negative frequency quarter of the FK plane...

Understanding Azimuthal P-Wave Anisotropy through Multiple Vendor and Attribute Comparisons

Jamie Rich, Breanne Kennedy, Marianne Rauch-Davies

Unconventional Resources Technology Conference (URTEC)

... measures of fracture orientation. Shear wave surveys which exploit the separation of polarization arrivals due to velocity anisotropy, tend to show...

The Application of Fluoboric Acid in Sandstone Matrix Acidizing: A Case Study

A. Ayorinde, C. Granger, R. L. Thomas

Indonesian Petroleum Association

... exhibited severe fines migration problems subsequent to conventional Mud Acid treatments attributed to exceeding the critical flow velocity for silt...

Subsalt Imaging: An Integrated Approach to Image Improvement of Vintage Data, #42076 (2017).

Evans Owah, Christian Rivera, Marjolaine Lahmi, Michel Courbe

Search and Discovery.com

... prospects. Pre-stack depth migration has been known to help improve the seismic image around complex targets with sharp lateral velocity variations...

Characterization of a Shallow Steamed Oil Reservoir Using Crosswell Seismology

Bjorn N. P. Paulsson, John W. Fairborn

Indonesian Petroleum Association

... at the velocity model. We have found that the final result is not sensitive to this initial guess and that a simple constant-velocity model...

Monitoring Sea-floor Instability Caused by the Presence of Gas Hydrate Using Ocean Acoustical and Geophysical Techniques in the Northern Gulf of Mexico

Erika Geresi, Ross Chapman, Tom McGee, Bob Woolsey

AAPG Special Volumes

... the velocity analysis for the normal moveout correction and from the migration-velocity analysis for the migration. The resolution of the first velocity model...

Improved Subsurface Imaging and Interpretability Through Broadband Reprocessing of Legacy Seismic Data: Examples from North West Shelf Australia

Stephen Malajczuk, Rajesh Saklani, Dean Clark, David Eastwell

Petroleum Exploration Society of Australia (PESA)

..., such as well log information (Lindseth, 1979) or migration velocity models (Oldenburg, et al. 1984). However these sources can only produce a crude estimate...

Minimizing Depth Uncertainties Through Effective Seismic Processing Strategies in a Complex Geological Setting - Unlocking Deeper Potentials Offshore Indonesia

M Afiq B Mokhtar, Riaz Alai, Yonghe Guo, Pongga Wardaya, Jun Wang, Rizki Krishna Pratama, Haryono Haryanto

Indonesian Petroleum Association

... with intermediate velocities such as single velocity functions obtained from existing wells or smoothed velocity models picked for time migration, can...

Smectite Diagenesis and Sandstone Cement: The Effect of Reaction Temperature

R. W. Lahann

Journal of Sedimentary Research (SEPM)

... of migration of a molecular species away from its source will increase. In like manner, the greater the rate constant for precipitation, the less likely...

Three-Dimensional Quantitative Characterization of Pore Throat Space of Low and Ultra Low Permeability Sandstone Reservoir in Bohai Bay Basin by Combined Constant Velocity Mercury Injection and X-CT, #42251 (2018).

Lin Wan, Lixin Tian, Chengmin Niu, Qingbin Wang, Xiaojian Liu

Search and Discovery.com

... by Combined Constant Velocity Mercury Injection and X-CT, #42251 (2018). Lin Wan, Lixin Tian, Chengmin Niu, Qingbin Wang, Xiaojian Liu PS Three-Dimensional...

Sediment Sorting in Alluvial Channels

Lucien M. Brush Jr.

Special Publications of SEPM

... structur ally was and much the case for more difficult suspended to evaluate than sediment To be sure minor fluctuations in the velocity close...

Physical Processes in the Ocean: Part 2: Relation of Oceanography to Sedimentation: PART 1

R. H. Fleming, Roger Revelle

AAPG Special Volumes

... of observed velocity distribution. End_Page 78------------------------- As has been stated, the coefficient of eddy viscosity is not a constant, and is very...

ABSTRACT: Simultaneous Joint Inversion as a Salt Detector in South Gabon Land Exploration "Best of EAGE"

Search and Discovery.com

A New Perspective to Shallow Water Flow (SWF) and Sinking Well-Head Preventions in Deep Water

Selim Simon Shaker

GCAGS Transactions

... for de-multiple, DMO (dip move-out) and pre-stack migration. Converting the time-velocity pair to depth-velocity pair probably is the first objective...

Abstract: Time-Reversal Extrapolation for Microseismic Event Localization; #90224 (2015)

Zhenhua Li and Mirko van der Baan

Search and Discovery.com

... the recorded field to the source location using the velocity model. Time-reversal extrapolation is a typical migration based method. Traditional time-reversal...

Converted-Wave Prestack Time Imaging without using P-Wave

Search and Discovery.com

... prestack time migration is strongly recommended, since it is a nature domain to take into account of binning and velocity updating together. However...

Palaeohydraulic Interpretation Using Mathematical Models of Contemporary Flow and Sedimentation in Meandering Channels

John S. Bridge

Dallas Geological Society

.... Bed shear stress (hence velocity, as f is constant) and texture patterns predictably follow each other closely, giving rise to ‘transitional...

Palaeohydraulic Interpretation Using Mathematical Models of Contemporary Flow and Sedimentation in Meandering Channels

John S. Bridge

CSPG Special Publications

.... Bed shear stress (hence velocity, as f is constant) and texture patterns predictably follow each other closely, giving rise to ‘transitional...

Sedimentary Structures Generated by Flow in Alluvial Channels

D. B. Simons, E. V. Rlchardson, C. F. Nordin JR.

Special Publications of SEPM

... with ripples or the plane bed in the case of coarse sand bed materials a rate of bed material transport a magnitude of velocity and a degree...

Effects of natural gas acidic components on local porosity generation in a carbonate reservoir: Insights from reactive transport modeling

Guanru Zhang, Peng Lu, Pan Luo, Eric Sonnenthal, Yi Huang, and Chen Zhu

AAPG Bulletin

... that in the base case (1.6 mmol/kg H2O [0.73 mmol/lb H2O]), at the same simulation time and with the same regional groundwater flow velocity, groundwater...

Abstract: Application of Pre-Stack Migration Techniques in SSB/SSPC to Improve Seismic Imaging and Reduce Exploration Uncertainties

Jan Douma

Geological Society of Malaysia (GSM)

... migration is the most commonly applied migration technique. For geological settings with mild velocity variations this technique gives satisfactory results...

Seismic expressions of a Miocene prograding carbonate margin, Mut Basin, Turkey

Xavier Janson, Gregor P. Eberli, Florence Bonnaffe, Fabrice Gaumet, Vincent De Casanove

AAPG Bulletin

... as in the stratigraphic cross section (Figure 4). Note that the first 50 m (164 ft) of the uppermost constant-velocity buffer interval in the model has been stripped...

The Evolution of FWI and its Perceived Benefits

Tony Martin, Andrew Long

Australian Petroleum Production & Exploration Association (APPEA) Journal

... of migration isochrones, were removed (Ramos-Martinez et al. 2016). Once this was accommodated, long wavelength velocity updates using reflections were...