Supercritical Flow in Density Currents

Bryce M. Hand

Journal of Sedimentary Research (SEPM)

... for internal waves: U = gL/2 (-)/(+) where and are densities of the current and overlying fluid. Critical slope for large scale density flows...

Taking the Plunge

Vidar Hovland, John Thompson

GEO ExPro Magazine

... systems. But the high resolution, multi-component data, including both pressure and shear wave, plus accurate positioning, made the technique a candidate...

The Technology of the Joint Inversion of Conventional Well Logs for Evaluation of Double Porosity Carbonate Formations; #41942 (2016)

Elena Kazatchenko, M. Markov, A. Mousatov, E. Pervago

Search and Discovery.com

... , are the travel times of the vertical effective-velocity component of P - and S – waves in carbonates and clays, and is the clay concentration...

Abstract: Geological Microseismic Fracture Mapping … Methodologies for Improved Interpretations Based on Seismology and Geologic Context; #90171 (2013)

S. C. Williams-Stroud and Leo Eisner

Search and Discovery.com

... with surface based vertical component geophones and does not require the use of 3 component geophones. The integration of this result with information...

Bedforms and Structures Associated with Bar Topography in the Shallow-Water Wave Environment, Kouchibouguac Bay, New Brunswick, Canada

Robin G. D. Davidson-Arnott, Brian Greenwood

Journal of Sedimentary Research (SEPM)

... produced by megaripples in seaward flowing rip-currents which dissect the bar; (3) repetition of the sequence of bedforms and structures as waves shoal...

Population Breaks in Grain-Size Distributions of Sand--A Theoretical Model

Kweku-Mensah O. Sagoe, Glenn S. Visher

Journal of Sedimentary Research (SEPM)

... component at the coarse break. The final term, the Mobility number, is influential at both breaks, imparting vertical and horizontal shifts at the coarse...

Regional Subsurface Hydrogeology, Peace River Arch Area, Alberta and British Columbia

Brian Hitchon, Stefan Bachu, J.R. Underschultz

CSPG Bulletin

... hydrostratigraphic units, 2) cumulative frequency plots for KMax, and 3) strike and dip cross-sections showing variations of hydraulic head and formation...

Introduction to Offshore Geologic Hazards: Section 1: PART 1

Arnold H. Bouma

AAPG Special Volumes

... resulting from geological, geotechnical, seismic, oceanographic, and meteorological phenomena in an area. Storms, waves, currents, earthquakes, ice...

Delineation of Shallow Gulf Coast Structure and Stratigraphy Using Seismic Shear Wave Reflections

T. L. Dobecki and J. Steele

Houston Geological Society Bulletin

... paper (Dobecki, 1989) and, as shown on Figure 1, we use the horizontal impact of a sledgehammer to generate the S-waves, and we use horizontal-axis...

Bio-Geology of a Living Coral Reef Complex on the Campeche Bank

Louis S. Kornicker, Donald W. Boyd

New Orleans Geological Society

... by many currents or waves which could shift them if they were loose debris. Similarly, an area studied on the windward reef demonstrates...

Abstract: Seismic Attenuation (Q) Estimation from VSP Data; #90211 (2015)

Chuandong (Richard) Xu and Robert Stewart

Search and Discovery.com

... the downgoing wavefield from the total wavefield. For the S-source horizontal-component data, a rotation from the x- and y-component to radial and transverse...

Identification of Microseismic Attributes Through Spectral Analysis

Michael J. Nava, James W. Rector, Zhishuai Zhang

Unconventional Resources Technology Conference (URTEC)

... consent of URTeC is prohibited. Summary The canonical monitoring geometry for hydraulic fracturing processes consists of a horizontal treatment well...

Are Horizontal Wells Right For Development Of Groundwater Resources In The Garber-Wellington Aquifer?

James W. Roberts

Oklahoma City Geological Society

... and steered to the desired horizontal depth and location. In the second phase the drill head is retrieved from the borehole and a specialized reamer...

Subsidence and Its Control

J. F. Poland

AAPG Special Volumes

... extractions and raised the artesian head, causing subsidence rates to decrease. In the Santa Clara Valley at the south end of San Francisco Bay...

AAPG Memoir 76, Chapter 13: Consolidation State, Permeability, and Stress Ratio as Determined from Uniaxial Strain Experiments on Mudstone Samples from the Eugene Island 330 Area, Offshore Louisiana

Beth B. Stump and Peter B. Flemings

AAPG Special Volumes

... and elastic properties by providing continuous measurements of stress ratio, K 0, defined here as the ratio of change in horizontal effective stress...

Modification of Sediment Size Distributions

William F. Tanner

Journal of Sedimentary Research (SEPM)

... components), censoring of a single component, truncation of a single component, filtering of a single component, or a combination of these. Simple mixing...

Storm- and Fair-Weather Combined Flow on the Central Texas Continental Shelf

John W. Snedden , Dag Nummedal, Anthony F. Amos

Journal of Sedimentary Research (SEPM)

... periods are incapable of generating shelf currents or waves with sufficient combined strength to entrain the fine sand of these beds. In contrast...

PS reflection-based full-waveform inversion using single-mode propagator

Yongbo Zhai, James Xu, James Rickett, Peng Wang, Xin Cheng, Denes Vigh, Suyang Chen, Cara Smith

International Meeting for Applied Geoscience and Energy (IMAGE)

... phases, including S-waves, its computational cost is substantial compared to acoustic modeling. Additionally, isolating the S-wave velocity update from...

Preliminary Results of a Passive Seismic Investigation in the Nechako Basin for Mineral and Petroleum Exploration

Melvyn Best

Search and Discovery.com

... on the vertical component and S-waves arrive dominantly on the horizontal components. Of the 1037 triggers, only seven were found to be local...

Preliminary Results of a Passive Seismic Investigation in the Nechako Basin for Mineral and Petroleum Exploration

Melvyn Best

Search and Discovery.com

... on the vertical component and S-waves arrive dominantly on the horizontal components. Of the 1037 triggers, only seven were found to be local...

Shake, Rattle and Tilt - Understanding Hydraulic Fractures in Tight Gas Sands, by Nancy House, Thomas Hewett, Julie Shemeta, Stephen Wolfe, Brian Fuller, and Marc Sterling; #90042 (2005)

Search and Discovery.com

Shake, Rattle and Tilt - Understanding Hydraulic Fractures in Tight Gas Sands, by Nancy House, Thomas Hewett, Julie Shemeta, Stephen Wolfe, Brian Fuller, and Marc Sterling; #90042 (2005)

Search and Discovery.com

Effects of Shoreline Irregularities on a Rectilinear Tidal Current and Their Significance in Sedimentation Processes

George Ferentinos, Michael Collins

Journal of Sedimentary Research (SEPM)

... Mumbles Head and along the South Gower Coast: Swansea City Council Pub., Final Report to Swansea City Council. BRIDGES, P. H., AND LEEDER, M. R., 1976...

Effects of liquefied beds on the basal layers of turbidity currents

Débora Karine Koller, Carolina Holz Boffo, Tiago Agne De Oliveira, Rafael Manica

Journal of Sedimentary Research (SEPM)

... the dimensionless vertical profiles of the upward velocity component ( v b ) divided by the maximum horizontal velocity component ( u max...

Abstract: Oil Fingerprinting for Production Allocation: Exploiting the Natural Variations in Fluid Properties Encountered in Heavy Oil and Oil Sand Reservoirs; #90171 (2013)

Barry Bennett, Jennifer J. Adams, Stephen R. Larter

Search and Discovery.com

...” of individual oil component or compound class concentrations in a reservoir from delineation or horizontal wells can be used to spatially allocate...