Abstract: An Investigation of Seismic Amplitude versus Offset (AVO), Computer Modelling and Field Data from the Kaimiro Field, Onshore Taranaki

Alex McAlpine, Mick Micenko, Derek Woodward, Jonathon Ravens

Petroleum Exploration Society of Australia (PESA)

... the Kaimiro1 (oil) and Kaimiro-4 (gas) well locations suggesting that simple AVO analysis may not be able to discriminate between hydrocarbon types...

Advanced Imaging and Inversion for Oil Production Estimates in Unconventional Resource Plays

Greg M. Johnson, Paul Miller, David Phillips

Unconventional Resources Technology Conference (URTEC)

... observed on the common-image-point offset azimuth gathers are related to azimuthal anisotropy as opposed to overburden effects as shown in Figure 2...

Orthorhombic Imaging for Orthogonal Wide Azimuth Surveys in Mississippi Canyon, Gulf of Mexico; #30391 (2014)

Yang He, Adam Gersztenkorn, Sherry Yang, Bin Wang

Search and Discovery.com

... and stratification, in general it improves image focusing in pre-stack depth imaging and provides flatter common image gathers (CIGs) for WAZ data. Recently...

AVO and Impedance Response of Perdices Miocene Sands, Lower Magdalena Valley Basin.

Oscar Moreno, Loz Darmon, Fernando Cerda, Anubrati Mukherjee

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... portions of the density log were computed from velocity filled using Gardner’s relation. Similar analyses were run on all wells, but for Well A, which...

Integrating Rock Physics and Borehole Seismic to Understand the Elastic Changes Associated with CO2 Injections: a REAL-LIFE Example from Southwestern Wyoming

Gabriela D’Aubeterre

Unconventional Resources Technology Conference (URTEC)

... and resolution of the objective of interest. The Rock Physics analysis phase allowed us to model the missing shear velocity log by using known models...

Prestack 3-D TAU Migration and Velocity Analysis: Focusing 3-D data from Offshore Abu Dhabi

Search and Discovery.com

An acoustic wave equation with the gradients of velocity and density

Jianyong Bai, Orhan Yilmaz

International Meeting for Applied Geoscience and Energy (IMAGE)

..., Equation 3 is used for RTM with the Volve OBC dataset. The dataset is sorted to common receiver gathers. We migrate the receiver gathers along...

Abstract: Cost Efficient Acquisition to Reduce Coarse Land 3D Line Spacings Through Beyond Nyquist Interpolation and Wavefield Reconstruction for Signal and Noise; #90187 (2014)

Bill Goodway

Search and Discovery.com

... reflection point domains. By contrast, 2D linear spatial sampling is regular and dense with fold that is higher by the same line to station spacing ratio...

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

..., Calgary, Alberta, Canada, May 9-11, 2011 Figure 3: Common midpoint gathers for CO2 injected models. The particle velocity seismograms were converted...

Implications of elastic full-waveform inversion for northern Red Sea

Kate Glaccum, Denes Vigh, Kai Wang, Xiaoling Tan, Jennifer Qin, Vivian Robertson, Trevor Ferguson

International Meeting for Applied Geoscience and Energy (IMAGE)

... structural framework. Herein, we present a case study of 6700 km, using elastic full-waveform inversion (FWI) to invert for P-velocity (Vp), to overcome...

Recovering Subsurface Coverage in the Emerging Smackover Brown Dense Unconventional Play in Northern Louisiana, #80515 (2016).

Richard Verm

Search and Discovery.com

... signal-noise ratio of the tiles using advanced noise attenuation techniques 3D  Pre-­‐Stack  Migra8on   3D  Pre-­‐Stack  Migra8on  Gathers...

Depth conversion and seismic inversion of the Scarborough gas field

Joseph Kremor, Manish Agarwal, Paul Spaans, Ung Sing Wong

Petroleum Exploration Society of Australia (PESA)

... in depth with the depth converted seismic using the velocity model, which was generated using the smoothed 30 Hz FWI model. The ties to the wells were...

ABSTRACT: Multiple Prediction and Subtraction from Apparent Slowness Relations In 2D synthetic and Field Ocean-bottom Cable Data and 3D Synthetic Data; #90113 (2010)

Juanjuan Cao and George A. McMechan

Search and Discovery.com

... and common-receiver gathers. No knowledge of the subsurface velocity is required. Traveltimes of the direct waves and primary reflections need...

Subsurface Image Comparison between Active Seismic Data and Interferometry Seismic for a Mud Volcano Case in Wringin Anom, East Java

Triswan Madani Ade Surya, Nur Rochman Muhammad, Nathasya Abigail, Firman Syaifuddin

Indonesian Petroleum Association

... data, and virtual shot receiver are processed using seismic reflection data processing work flow. Seismic stack from active source real data has poor...

Abstract: Full Waveform Inversion of Borehole Data in the Presence of High-Velocity Screens; #91204 (2023)

Ali Aldawood, Andrey Bakulin, Fuqiang Chen

Search and Discovery.com

... preventing seismic energy from travelling to a deeper depth. We also add three low-velocity anomalies to introduce horizontal heterogeneity. 317 shot gathers...

High-frequency FWI on Clair OBN dataset Challenges and successes

Matvey Romanenko, Lee Saxton, Dan Davies, James Sheng, Faqi Liu, Jan Gromotka, Yang He

International Meeting for Applied Geoscience and Energy (IMAGE)

... were being driven primarily by the reflection only DM FWI passes. Following thorough analysis of the benchmark data it was determined that the multiples...

ABSTRACT: Imaging Through Gas Clouds: Case Histories from the Gulf of Mexico; #90007 (2002)

Knapp, Steve, Nigel Payne, Tony Johns

Search and Discovery.com

... will be compared to identify improvements in data quality with the added benefit of providing gathers suitable for AVO analysis. Future Work As can...

Gippsland Basin, Australia: New Data Reveals Further Potential in a Mature Basin

Jarrad Grahame, Keat Huat Teng, Iain Burnie, CGG

GEO ExPro Magazine

... velocity updates, using both the ReGeneration reprocessing and the new data, will be completed by the end of 2021, with further uplift expected...

Interval Velocity Modeling of Celebes Molasse as Post Collision in Banggai-Sula Foreland Basin, Eastern Sulawesi, Indonesia

Anggoro P. Kurniawan, Maikel Arifin, Wahyuni T. Sundari, Sardjito, Nurhadi Budi, Hasan Nurudin

Indonesian Petroleum Association

... between PSTM (post stack time migration), using RMS (root mean square) Velocity, and PSDM (post stack depth migration), using interval velocity, on NW-SE...

Analysis of the Hydrocarbon Sandstone Distribution Using Rock Physics and Petrophysics Calculations, Simultaneous Inversion, Extended Elastic Impedance (EEI) and Curved Pseudo-Elastic Impedance (CPEI) in X Field Bonaparte Basin

Alfan Hidayah Kusuma, Meta Nisrina Syafitri, Zakki Fahrurrozi

Indonesian Petroleum Association

...Analysis of the Hydrocarbon Sandstone Distribution Using Rock Physics and Petrophysics Calculations, Simultaneous Inversion, Extended Elastic...

Pre- and Post-Injection Vertical Seismic Profiling over the Southwest Regional Partnerships Phase II Fruitland Coal CO2 Pilot; #80104 (2010)

Tom Wilson, Les Nutt, Ric Smith, Jitendra Gulati, Marcia Coueslan, Dwight Peters, Art Wells, Craig Hartline, George Koperna, Bill Akwari

Search and Discovery.com

... is complex and reflection discontinuity common. An isopach of the Fruitland sequence (D) reveals considerable variation in traveltime through the Fruitland...

Seismic Detection of Gas in Cretaceous Sandstones and Fractured Sandstones

Walter E. Johnson, William T. Brown Jr., James B. Peterson

Rocky Mountain Association of Geologists

... AVO technology successful. First, the development of the CDP (common depth point) method occurred in the 1960’s as a means to improve the signal...

The North Sea: Deep Imaging

Jørn B. Christiansen, TGS

GEO ExPro Magazine

.... The majority of clients ordered pre-stack gathers, but TGS discovered that few of them were using this data. This appears to result from a lack...

Seismic Characterisation of Unconventional Plays in North America

Lee Bell, Mary Edrich, Alvaro Chaveste

Petroleum Exploration Society of Australia (PESA)

... of stratigraphic architecture using t radit ional success increases where these factors optimally interpretation tools. Structural analysis using...

The Impact of Pore Geometry and Microporosity on Velocity-Porosity Relationship in Carbonates of Central Luconia, Sarawak; #41030 (2012)

Nor Sara Izzatti Bashah and Bernard Pierson

Search and Discovery.com

... the velocity-porosity relationship. The amount of microporosity is calculated as the difference between the observed porosity in digital image analysis...