A Novel Method of Deriving Weathering Statics from First Arrival Refractions

G. W. Hollingshead, R. R. Slater

Pacific Section of AAPG

... the refractor velocity and I the intercept time, each first arrival may be reduced to an intercept time by subtracting a time equal to X/V. Figure 2...

Quantitative Interpretation: Use of Seismic Inversion Data to Directly Estimate Hydrocarbon Reserves and Resources

James Shadlow, Adam Craig, David Christiansen, Robert Mitchell

Petroleum Exploration Society of Australia (PESA)

... model was generated, using the geostatistically kriged PSDM velocities, formation tops and chronostratigraphic picks as input. The velocity modelling...

Some Relations Among Sedimentation, Stratigraphy, and Seismic Exploration

W. C. Krumbein

AAPG Bulletin

..., as Hafner (1940) and others showed. Swan (1942) prepared a series of contour maps representing apparent velocity variation to a time datum in several...

Stress State Derived from Microseismicity Induced by Hydraulic Fracturing: Downhole and Surface Monitoring

Zuzana Jechumtálová, František Stanĕk, Leo Eisner, G.Randy Keller

Unconventional Resources Technology Conference (URTEC)

... required a preliminary choice between the nodal planes. Later modification of this method by Angelier (2002) showed that it is not necessary to choose...

Abstract: Comprehensive Technology for Complex Targets Research with Electromagnetic, Gravity, Magnetic and Seismic Data and its Applications; #90319 (2018)

Zhi Zhao, Dechun Li, Zhao Li

Search and Discovery.com

... data. The velocity model obtained is used in the pre-stacking depth migration, greatly improving the resolution of traps prediction. The three wells...

Investigation of Possible Shallow Gas Accumulations Associated with Pockmarks on the Otago Slope Southeast of New Zealand

Jasper Hoffmann, Andrew Gorman, Gareth Crutchley

Petroleum Exploration Society of Australia (PESA)

... on velocity analysis are a standard procedure undertaken during long-offset seismic processing to determine accurate normal moveout (NMO) corrections...

Back To Basics of Sequence Stratigraphy: Early Miocene and Mid-cretaceous Examples from the New Jersey Paleoshelf

Kenneth G. Miller, Christopher J. Lombardi, James V. Browning, William J. Schmelz, Gabriel Gallegos, Gregory S. Mountain, Kimberly E. Baldwin

Journal of Sedimentary Research (SEPM)

... ages (Mountain et al. 2010; Browning et al. 2013; Miller et al. 2013a). A preliminary velocity–depth function developed from stacking velocities...

Structure and Stratigraphy of the Blake Escarpment Based on Seismic Reflection Profiles: Rifted Margins

R. E. Sheridan , C. C. Windisch , J. I. Ewing , P. L. Stoffa

AAPG Special Volumes

... gather, 24-channel velocity analysis, normal move-out correction, 24-fold stacking, trace equalization, deconvolution, and time variable gain. Velocity...

Hydrocarbon exploration method based on spectral analyses of reflected seismic waves with an introduction to Class A, B and C P-wave dispersion

Robert Wiley, R. Harris Ardis, Scott W. Peters

International Meeting for Applied Geoscience and Energy (IMAGE)

... the crossover point toward higher frequencies. Regardless, the typical net observable effect in the time domain is again time domain stretch. Figure 3b...

9C data acquisition for near-surface imaging in a quick-clay landslide-prone site in SW Sweden

Tatiana Pertuz, Alireza Malehmir

International Meeting for Applied Geoscience and Energy (IMAGE)

... Hz, in the frequency domain, to further lower the amplitude of the source-generated noise. An NMO velocity analysis was conducted in a range...

Sedimentology and stratigraphic architecture of a point bar deposit, Lower Cretaceous McMurray Formation, Alberta, Canada

Phillip A. Labrecque, Stephen M. Hubbard, Jerry L. Jensen, Haley Nielsen

CSPG Bulletin

... datum in this study is identified. (D) High-quality three-dimensional seismic time slice across the study area from approximately 12 ms (12 m) below...

Numerical Solution to Design Velocity Strings to Unload Wet Gas Wells for Optimum Flow Rate and Recovery

Bernando Purba, Awaldi Fitrah

Indonesian Petroleum Association

..., applying velocity string in gas wells will decrease production rate and increase production period which means higher ultimate recovery. The choice...

A Discussion of the Application of the Gravitational and Magnetic Methods of Exploration to the Powder River Basin

Willis H. Fenwick

Wyoming Geological Association

... in gravity with elevation; the Bouguer effect, or the effect due to the mass of rock between datum and the point of observation; the terrain effect...

CSPG/CSEG/CWLS GeoConvention 2012, May 14-18, 2012 Calgary TELUS Convention Centre & ERCB Core Research Centre, Calgary, Alberta, Canada; - Abstracts, #90174 (2014).

Search and Discovery.com

Pachuta Creek (Smackover) Field, Mississippi

Anthony J. Weber

GCAGS Transactions

.... Interpolation, though, of velocity at each of the points of seismic control from the contoured velocity maps would prove to be a time-consuming task...

Abstracts: Tuning Effects in P-wave Reflections from a CO2 Injected Saline Aquifer: A Preliminary Appraisal; #90173 (2015)

Bernard Giroux, Maxime Claprood, and Lorenzo Perozzi

Search and Discovery.com

... has a strong effect on wave propagation, as can be seen in Figure 2. Figure 2: Snapshots of the vertical component of particle velocity for CO2...

ABSTRACT: Azimuthally Sectored Attribute Volume Analysis; #90122 (2011)

Amanda Thompson, Jamie Rich, and Mike Ammerman

Search and Discovery.com

... to approximate the NMO velocity in a medium with horizontal transverse symmetry. Following the methodology of Thompson et al (2010) ellipses were fit...

Assessing and processing three-dimensional photogrammetry, sedimentology, and geophysical data to build high-fidelity reservoir models based on carbonate outcrop analogues

Ahmad Ramdani, Pankaj Khanna, Gaurav Siddharth Gairola, Sherif Hanafy, and Volker Vahrenkamp

AAPG Bulletin

.... S = convex-shaped, disorganized, low-amplitude seismic events; TWT = two-way time; VP = P-wave velocity. Zero-Offset P-Wave Reflection Model We...

Time-lapse monitoring of saltwater disposal in Kansas and Oklahoma using ambient noise

Lonn Brown, Mirko van der Baan

International Meeting for Applied Geoscience and Energy (IMAGE)

... of seismograms between a station pair, combined with adequate stacking and processing, are suitable to obtain an estimate for the subsurface velocity...

Delineation of the Reservoir by Seismic Methods: Chapter 3

Roberto Sarmiento

AAPG Special Volumes

... to the geophone. These measurements permit accurate travel time and average velocity measurements to the various geophone levels. The sonic log...

The identification and cause analysis of abnormal velocity in the western part of Shaleitian Bulge

Zongyu Zhen, Gang Peng, Xuefeng Zhou, Bo Xi

International Meeting for Applied Geoscience and Energy (IMAGE)

... in time-depth conversion and structural analysis. However ， many factors may result in velocity anomaly. So it is very important to identify velocity...

Experimental and Numerical Analysis of Toe-Up Trajectory Inclination Angle and Gas Lift Rate Effect on Unconventional Oil Well Performance

Youcef Khetib, Kegang Ling, Ala Eddine Aoun

Unconventional Resources Technology Conference (URTEC)

... well production system. The translational velocity is obtained by calculating the lag time between each of the two adjacent holdup sensors using cross...

ELECTRONIC COMPUTERS AID IN EXPLORATION DECISIONS AND INTERPRETATIONS

E. J. Assiter

Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)

... the time of arrival of the sound wave at geophone positions in a well is probably the best velocity information available for the conversion of reflection...

Interpretative PSDM Workflow for Solving Complex Imagery Below Faults and Carbonates Reefs in South Mahakam, Kutai Basin: An Interpreters Point of View

Cepi Muhamad Adam, Nadir Abdoun, Bertrand Duquet, Florent Bertini, Yves Le Stunff

Indonesian Petroleum Association

... them deeper than they should be. To correct this effect, the green function was computed within the smoothed velocity model and a travel time correction...

Processing and Interpretation of 2-D Seismic Data from the Bighorn Basin, Wyoming

David J. Taylor

Wyoming Geological Association

...) Datum Correction Trace Equalization Predictive Deconvolution Constant Velocity Analysis Normal Moveout Correction Hand Statics Corrections...