Efficient interdisciplinary workflow for predrill seismic pore pressure prediction

Josue Fonseca, Anshuman Pradhan, Tapan Mukerji

International Meeting for Applied Geoscience and Energy (IMAGE)

... compared with our benchmark. Methodology The BGBM methodology follows the Popper-Bayes philosophy (Tarantola, 2006). This workflow connects several...

A Simple Guide to Depth Conversion: Part I

Ashley Francis

GEO ExPro Magazine

... are the so-called stacking velocities. Seismic processing requires curving events on gathers to be flattened using the NMO stretch correction before...

AVA attribute estimation from misaligned seismic gathers using U-Net

Ammar Ghanim, Ricard Durall, Norman Ettrich

International Meeting for Applied Geoscience and Energy (IMAGE)

... are mainly caused by inaccuracies in the velocity model used during migration. Aligning these reflections in seismic normal moveout (NMO) corrected...

Abstract: AVO Compliant Spectral Balancing; #90171 (2013)

Nirupama Nagarajappa and Jon Downton

Search and Discovery.com

... the amplitude versus offset relationship introducing systematic error into subsequent AVO analysis. Further, spectral balancing is often performed after NMO...

An Overview of Reservoir Seismic Stratigraphy, Frontmatter

Tom Wittick

North Texas Geological Society

... held positions with several oil companies, seismic contractors and consulting firms as Division Exploration Manager, Division Geophysicist, Consulting...

Insight on the uplift the Wave-Equation Based AVO technology may have on unconventional reservoirs: A case study on the Vaca Muerta Formation, Neuquén Basin, Argentina.

David Curia, Ezequiel Valeff, Francisco Ghersi, Hansel Gonzalez, Pablo Benitez

Unconventional Resources Technology Conference (URTEC)

... layers can be properly accounted for with this technique, as it is a fully elastic method (Gisolf, 2017). While it could be assumed that a fully elastic...

Three-Dimensional Seismic Analysis in the Characterization of a Giant Carbonate Field, Onshore Abu Dhabi, United Arab Emirates

Peter Melville, Omar Al Jeelani, Saeed Al Menhali, Jürgen Grötsch

AAPG Special Volumes

... wells subsequently found other hydrocarbon-bearing layers, including gas. This giant field came on stream in 1973 and is currently producing on plateau...

Seismic Modeling of Fluvial-Estuarine Deposits in the Athabasca Oil Sands Using Ray-Tracing Techniques, Steepbank River Area, Northeastern Alberta

C. W. Langenberg, F. J. Hein, D. Lawton, J. Cunningham

CSPG Bulletin

... dips and unit picks. All pertinent wells and associated dipmeter stick logs, and true dip and azimuth plots were incorporated into the cross-sections...

Shallow Seismic Reflection Survey by Using Accelerated Weight Drop as Seismic Source

Alfian Alfian, Rachmat Sule, Awali Priyono, Masami Hato, Takao Aizawa, Alphius Dwi Guntara

Indonesian Petroleum Association

... structure will begin around end-2017. There are several monitoring programs that will be implemented before, during and after CO2-injection, with the main...

Chapter Ten-part 2: Depth Conversion

Leslie R. Denham, Dave K. Agarwal

AAPG Special Volumes

... it is not a velocity in a real sense. C. Hewitt Dix (1955) pointed out that if the overburden is considered to be not uniform but made up of several horizontal layers...

Developing a New Technique Through Partnering with Contractors: Reservoir Prediction Utilizing AVO Walkaway VSP Data to Calibrate Surface Seismic Gathers, a Case Study in Indonesia

Patricia L. C. Henderson, Dan Hampson, Scott Leaney, Nigel Smith, John Rice, Dave Boreham

Indonesian Petroleum Association

... × 125M GRID SORTING OF THE EIGHT GROUPS OF 30 FOLD GATHERS INTO 240 FOLD "SUPER GATHER" NMO CORRECTION USING 3D STACKING VELOCITY FIELD RADON...

Abstract: AVAZ Inversion for Fracture Orientation and Intensity: a Physical Modeling Study; #90187 (2014)

Faranak Mahmoudian and Gary F. Margrave

Search and Discovery.com

... (Crampin, 1981). Using P-wave NMO velocity variation with azimuth (VVAZ), fracture orientation is considered to be in the direction of the fast P-wave...

Abstract: Wide Azimuth Interpolation; #90211 (2015)

Daniel Trad, Jeff Deere, and Scott Cheadle

Search and Discovery.com

... from several dimensions at the same time. Multidimensional interpolation algorithms are becoming feasible, even for five dimensions (Liu et al., 2004...

Multichannel Data Acquisition and Processing

Gregory L. Smith, David A. Falvey, Raymond Shaw

Circum Pacific Council Publications

... d wit h referenc e to sonobuo y data, an d a stacking-velocit y mode l was developed. Th e dat a wer e NMO-correcte d an d th e CDP gather s displaye...

Abstracts: True-Amplitude PS Prestack Time Migration via 5D Interpolation; #90173 (2015)

Peter W. Cary, Albert Zhang

Search and Discovery.com

... for the imaging process which often requires several velocity picking and migration iterations. Converted-wave NMO velocities are typically used as initial...

Integrated Amplitude versus Offset (AVO) Approach for Delineating Stratigraphic Traps

M. Azuddin M. Yusof

Geological Society of Malaysia (GSM)

... out (NMO) corrected common depth point (cdp) gathers should be conducted on lines with well control since this method is the most precise even though...

Active Margin: Volcanics, North Island, New Zealand

D. Bradford Macurda, Jr.

AAPG Special Volumes

... occur at the same stratigraphic level. Line 3 (Figure 4) illustrates one of several such features that are near the large feature seen in Line 2...

Geological Input Valuable in Seismic Velocity Analysis, by Supratik Sarkar; #41118 (2013).

Search and Discovery.com

Seismic Inversion for Hydrocarbon Screening: Mahakam Case Study

Hilfan Khairy, Didiek B. Prabowo, Cepi Adam

Indonesian Petroleum Association

... to improve quality and consistency between partial stacks due to un-optimal NMO correction, the initial seismic QC computation over the interval...

Broadband data with a new low frequency source Acquisition and processing example from the Gulf-of-Mexico

Xuefeng Shang, Maksym Kryvohuz, Hamish Macintyre, Guido Baeten, Thibaut Allemand, Philippe Herrmann, Stephane Laroche, Shuki Ronen

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Several shot lines were repeated with a volume of 26,500-cui TPS source shooting at a firing pressure between 700 and 1,000 psi. Such a large amount of air...

The Geophysicists' Bane: Multiple Suppression on the North West Shelf

C. R. T. Ramsden, M. R. Hobson, R. Cooper

Petroleum Exploration Society of Australia (PESA)

... multiples (Fig lc). These multiples are generated entirely between layers other than the waterlayer i.e., between layers in the subsurface. They are usually...

Abstract: TTI Anisotropic Depth Migration: Which Tilt Estimate Should We Use?; #90211 (2015)

Francois Audebert and Volker Dirks

Search and Discovery.com

... Isotropy and it characterizes a medium exhibiting polar anisotropy around an arbitrary tilt axis (polar axis). The polar anisotropy, with respect...

Pre-Stack Calibration to Well Data: Intercept & Gradient Scaling … A Case Study From the Norwegian North Sea

Nguyen Nam, Larry Fink

Indonesian Petroleum Association

... the seismic wavelet, are not discussed in this paper. The causes for AVO scaling problems, such as multiples, incorrect velocity, residual NMO...

Recent Advances in Borehole Seismic

W. L. Nutt

Indonesian Petroleum Association

... methods are explained and several examples from Indonesia and Australia are discussed. Balch, A. H.; Lee, M. W.; Miller, J. J.; & Taylor, R.T.; 1982...

Quantifying the Benefit from Pressure Gradient Data in Wavefield Reconstruction for Time-Lapse Seismic, #40843 (2011)

Phil Christie, Kurt Eggenberger, Everhard Muyzert, Massimiliano Vassallo, Ali Özbek

Search and Discovery.com

... to be linearly related to the repositioning error and several of the above authors report empirical results which suggest a ‘rule of thumb’ error gradient of 1...