Australian Insights into Streamer Technology Innovations

Andrew Long

Petroleum Exploration Society of Australia (PESA)

...-coincident manner d uring At maximum frequency, the signal is impedance information. Thus, a bridge is made 2008: w ith a convent ional source array...

Turbulent Flow

Gerard Middleton, John B. Southard

Special Publications of SEPM

... the molecules have a greater downchannel velocity in the region above a given shear plane than below it, molecular exchange across the plane tends to even...

Seismic Acquisition in the Papuan Fold Belt: A New Approach

G. S. Hill, S. J. Price, M. S. Foster, R. W. Stephenson, D. Ellis, J. A. Lyslo

Papua New Guinea (PNG) Petroleum Convention Proceedings

.... The sonic velocity of the exposed ‘fresh’ rock, determined from the difference in direct arrival times across the array from a shot fired on the pad...

3D Seismic from Planning to Mapping

A. Kullerud, O. Nipen, H. E. Nordberg

Indonesian Petroleum Association

... to a notch in the frequency spectrum and maximum response will be midway between the zero frequency and the notch frequency. Given the above...

Abstract: Comparative Study on 2D Microseismic Source Location with Synthetic Seismograms Recorded by Borehole- and Surfacereceiver Arrays; #90224 (2015)

Anton Biryukov, Simon G.E. Harvey, and Giovanni Grasselli

Search and Discovery.com

... is investigated. The computational domain is represented by a rectangular 2000 m × 2000 m homogenous isotropic medium with a given velocity model...

Abstract: Achieving a Broadband Seismic Image: a 3D Dispersed Source Array Case Study; #91204 (2023)

Mohammed Almubarak, Woodon Jeong, Constantinos Tsingas

Search and Discovery.com

... the sweep length and/or the utilization of special and custom designed sweeps have been attempted. Alternatively, dispersed source array (DSA...

Future of Microseismic Analysis: Integration of Monitoring and Reservoir Simulation, #40784 (2011)

Leo Eisner, Vladimir Grechka, Sherilyn Williams-Stroud

Search and Discovery.com

...: better quantification of event locations along with the velocity model, and improved understanding and calibration of the type of rock failure...

Recommendations From Error Analysis of Single Well Microseismic Data With Full-Wavefield Moment Tensor Inversion: A Case Study

Juan M. Lorenzo, Trudy L. Watkins, Arash Dahi Taleghani

Unconventional Resources Technology Conference (URTEC)

...hetic seismogram calculation utilizes this anisotropic velocity model and the moment tensor inversion assumes an isotropic velocity model. Three of the test...

Quantitative Self-Verification, a Breakthrough in Ultrasonic Metering Technology

Gregor J. Brown, Ross Johnston

Australian Petroleum Production & Exploration Association (APPEA) Journal

... diagnostics. A partial list of such higher-level diagnostics is given below: • Path-to-path SOS comparisons • Relative gain comparisons • Velocity profile...

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

... are affected by the effective stress in a given basin. Using the seismic velocity wavefield in 3D volume, overpressure can be mapped using appropriate pore...

Kinematics and Growth of Supra-Salt Systems: A Field and Subsurface Analysis, Paradox Basin, #30515 (2017).

Elizabeth Horne, Bruce Trudgill

Search and Discovery.com

... and temporal evolution of the fault array. Fault linkage analyses such as: fault throw-length (T-L); throw-distance (T-x); throw-depth (T-z...

Geophysical Techniques Used in Petroleum Exploration in the Ying Ge Hai Area, Zhanjiang, SW Guangdong Province, China

L. William Edwards

Circum Pacific Council Publications

... traces, on-line demultiplexing, a 2,400 m to 3,600 m cable, 10 to 15 m group intervals and a high-volume-tuned airgun array. Computer-assisted acoustic...

Risks of Microseismic Fracture Mapping Mis-interpretation: Source-Dependent Sensitivity Induced by Surface Arrays Observational Bias

Pierre-Francois Roux

Unconventional Resources Technology Conference (URTEC)

...tch array designed using the aforementioned velocity model (Figure 4). Figure 4: surface network used. Each square is a patch composed of 48 tra...

High-resolution imaging using least-squares migration in the image domain (LSMi) for a marine distributed acoustic sensing (DAS) 3D-VSP

Ali Sayed, Francesca Twynam, Ran Bachrach, Maud Cavalca, Leo Leon, Maria Shadrina, Qingsong Li, Reetam Biswas, Daniel Tebo, Sam Buist

International Meeting for Applied Geoscience and Energy (IMAGE)

... operator combines the action of forward modelling and migration for a given acquisition geometry and subsurface velocity model. It is estimated...

Seismic Applications of the Velocity Log

W. G. Rimmer

CSPG Bulletin

... much of the apparent structures could be due to velocity anomalies. While there can be no final answer to this question until a well is drilled...

Three-Dimensional Antidunes as HCS Mimics in a Fluvial Sandstone: The Pennsylvanian South Bar Formation Near Sydney, Nova Scotia

Brian R. Rust, Martin R. Gibling

Journal of Sedimentary Research (SEPM)

... antidunes as flow velocity decreased downfan. We therefore conclude, as did Allen (1966, 1984) and Barwis and Hayes (1985), that given the right depth...

The Global Offset Seismic Approach: Improving Seismic Imaging In Complex Geological Settings

Paolo Dell'Aversana

Petroleum Exploration Society of Australia (PESA)

... in order to perform robust inversions of first arrivals, near vertica l and wide angle reflections. The output i s a reliable parametric model (velocity...

Stratigraphic Velocity Interpretation: National Petroleum Reserve--Alaska: Chapter 12

E. W. Peikert

AAPG Special Volumes

...-primary and primary events. Mathematical or interpretative smoothing of Vint estimates from a number of velocity gathers within a selected radius of a given...

Surrounding Rock Influence Correction for Array Laterolog Responses with Borehole Eccentricities in Horizontal Wells

Search and Discovery.com

Modified Residual Migration

Craig J. Beasley, Rolf Klotz

Southeast Asia Petroleum Exploration Society (SEAPEX)

... is T. Since the migrated time TD depends on dip, equation (2) is a dip-dependent calculation of residual velocity. For a given dip, D, equation (2) uses...

Petroleum Geologist and Exploration Geophysicist: Co-Ordination and Seismic Velocity

John D. Hale

CSPG Bulletin

... or lithologic unit can result in a change of seismic velocity either or vertically within this unit. The main apparent physical property that contributes toward...

Mainstream Mantle Convection: A Geologic Analysis of Plate Motion

T. H. Nelson , P. G. Temple

AAPG Bulletin

.... We have also assumed that both the maximum mainstream velocity and the mainstream-velocity gradient are constant for any given mainstream latitude...

Basics of Resistivity Tools - Application of Resistivity-Tool-Response Modeling for Formation Evaluation - Archie Series No. 2

Hezhu Yin

AAPG Special Volumes

...’s equation To compute a laterolog response numerically for a given electrode array and distribution of resistivities involves the solution...

Abstract: Uncertainty in Surface Microseismic Monitoring; #90187 (2014)

Michael Thornton, Mike Mueller, and Leo Eisner

Search and Discovery.com

... are computed, assuming a known velocity field. The recorded d a t a traces are then summed a c r o s s the array along the diffraction curves...

Uncertainty in Surface Microseismic Monitoring; #41258 (2013)

Mike Mueller, Michael Thornton, and Leo Eisner

Search and Discovery.com

... are then summed across the array along the diffraction curves for the entire trace length. This beamformed trace forms a continuous estimate...