Time-Lapse Geophysics for Mapping Fluid Flow in Near Real Time: Results from a Controlled Mesoscale Experiment

Roelof Versteeg

Special Publications of SEPM

... and differencing - automated visualization and movie creation - posting of results to web 95 Web allows access to experiment progress and animation of flow...

Abstract: Quantifying the Morphology and Growth of Levees in a Submarine Tributary Channel System Offshore Brunei Darussalam; #90063 (2007)

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Abstracts: Borehole Geophone Repeatability Experiment; #90173 (2015)

Peter G. Gagliardi and Don C. Lawton

Search and Discovery.com

... angles were found, they were converted into geophone element azimuth and compared across all shots; in addition, differencing was done to determine...

3D Acoustic and Elastic Wave Modeling on a High Performance Computing System, #40899 (2012)

Suhas Phadke, M. Ramanjulu

Search and Discovery.com

... of an approach to the problem decomposition depends on the computational scheme. In this study we have used the MacCormack scheme for finite differencing which...

New Geostatistical Method for Mapping Faults with Well Logs

An-Ping Yang

Indonesian Petroleum Association

... different local nominal dips can be calculated from the horizon grid. One is a simple differencing of the elevation z over a single grid spacing which...

Full Spectrum Gravity --- Improving AGG Data Quality at Both Ends of the Spectrum

Chris van Galder, Mark Dransfield

Petroleum Exploration Society of Australia (PESA)

... and resampled to the database. Short wavelength channels, HGNE and HGUV, are generated by differencing the low-pass filtered GNE and GUV data. The low-pass...

ABSTRACT Numerical Modelling of the Time-Lapse EM Response of a CO2 Injection in a Deep Saline Aquifer Using Metallic Casings for the Current Injection, #90103 (2010)

Bernard Bourgeois, Jeremy Rohmer, Jean-François Girard

Search and Discovery.com

... difference between the last dataset and the previous one (“sequential” differencing) or between the last dataset and the initial “baseline” measured before...

Fluid Substitution Modeling to Determine Sensitivity of Time-Lapse 3-D Vertical Seismic Profile Data to Injected CO2; #41902 (2016)

Kimberley Haar, Robert Balch

Search and Discovery.com

... at different times, the use of rock physics to compute seismic properties for different fluid states, and differencing of synthetics based off...

Petrography and Reservoir Physics I: Objective Classification of Reservoir Porosity (1)

ROBERT EHRLICH , STERLING JAMES CRABTREE , KATHLEEN O. HORKOWITZ , and JOHN P. HORKOWITZ

AAPG Bulletin

...) classification procedure is rapid, accurate, and precise, (3) pore types are understood easily in ter s of conventional genetic classification schemes, and (4...

ONSHORE APPLICATIONS OF 3-D SEISMIC TECHNOLOGY 3D DATA ACQUISITION

Tom Davis, Steve Roche, and Susie Mastoris

Fort Worth Geological Society

... at once. In practice upsweeps and downsweeps are used along with phase differencing. In areas where the vibrators have good access, a reduction...

New Fault Reinterpretation Using Edge Seismic Attribute to Optimize WF Performance in Bekasap Field, Central Sumatra Basin

Amul Agan, Komut Maneechai, Yuni Budi Pramudyo, Anak Agung Hendra

Indonesian Petroleum Association

... the specified frequency band, the actual differencing is done over entire weighted frequency spectrum in the direction of structural dip. In this case...

Seismic Imaging of Fractures … A Feasibility Study

Larry Lines

Search and Discovery.com

... the boundaries of the fractured zones. The best diagnostic comes from differencing the cross-sectional profiles of normalized depth images. Given the size...

Seismic Imaging of Fractures … A Feasibility Study

Larry Lines

Search and Discovery.com

... the boundaries of the fractured zones. The best diagnostic comes from differencing the cross-sectional profiles of normalized depth images. Given the size...

R&D into Time-Lapse 3-D Seismic with Analogue Sandbox Models

Don Sherlock

Petroleum Exploration Society of Australia (PESA)

... isation, differencing of field seism ic surveys wou ld produce a volume of data w ith meaningless amplitudes equal to or greater than the amplitudes...

Time Lapse Seismic for Reservoir Characterization

Rick Walia

Indonesian Petroleum Association

... differencing technology is a highly specific and is based on a full set of generic and specific tools which include surface-consistent matching, 4D...

Extended Abstract: What is Wave Equation Pre-stack Depth Migration? An Overview

Andrew Long

Petroleum Exploration Society of Australia (PESA)

... really can't stand the jargon) As schematically illustrated in Figure 2, finite differencing is a means by which seismic energy can be migrated. Using...

Abstract: Reservoir Characterization of Plover Lake Heavy-Oil Field, by Larry Lines, Joan Embleton, Mathew Fay, Steve Larter, Tony Settari, Bruce Palmiere, Carl Reine, and Douglas Schmitt; #90075 (2008)

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Reservoir Characterization of Plover Lake Heavy-Oil Field, by Larry Lines, Joan Embleton, Mathew Fay, Steve Larter, Tony Settari, Bruce Palmiere, Carl Reine, and Douglas Schmitt, #40274 (2008).

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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

... reservoir effects could best be detected by repeated time-lapse multicomponent surveys. The differencing of time-lapse surveys should eliminate...

Shallow VSP for Near-Surface Structure and Statics, #41535 (2015).

Soo-Kyung Miong, Robert R. Stewart, Joe Wong

Search and Discovery.com

... is aided by synthetic seismograms generated using a finite-differencing algorithm. The synthetic seismograms were also used in developing and testing...

Balakhany IX and X Integrated Studies Shallow-Water Gunashli Field, Caspian Sea

Kevin Sylvester, Dave Waldren, Bakhtiyar Bagirov, Elshad Alaskarov

AAPG Special Volumes

... mapped original pore volume to field history matching in the reservoir model.The Balakhany IX and X reservoir layering schemes used by RMC were adopted...

Robust Event Recognition in Real-Time Hydraulic Fracturing Data for Live Reporting and Analysis

Samid Hoda, Jessica Iriarte

Unconventional Resources Technology Conference (URTEC)

... continuous signals, first-order differencing is useful when analyzing discrete-time (discretely sampled) signals. Calculating the first-order...

Historic Fracture Design Evaluation Made Easy: Automating Pumping Schedule Recognition from Hydraulic Fracturing Time-Series Data

Jessica Iriarte, Sam Hoda

Unconventional Resources Technology Conference (URTEC)

... in a binary or (0/1)-valued signal is to apply first-order differencing. First-order differencing is the discrete-time analogy to the first-derivative...

Comparison of Methods Used to Measure Modern Subsidence in Southeastern Louisiana

Roy K. Dokka

GCAGS Transactions

...), differencing its record with other stations yields the land subsidence. For the Louisiana stations, this difference has been ~7 mm/ yr (0.28 in/yr...

Reservoir Rocks Behaving Differently

Thomas Smith

GEO ExPro Magazine

... to summing and differencing of discrete frequencies which are part of the input signal wavelet and have the broadening effect of the spectrum of the original...