A new perspective of surface consistent deconvolution

Dongliang Zhang, Mohammed Almubarak, Constantinos Tsingas

International Meeting for Applied Geoscience and Energy (IMAGE)

... the structure of the matrix of linear equations and its gradient. These added constraints help to converge to a more stable solution by using...

Microseismic Case Study: A deeper look into the microseismic events. What events are really related to stimulated reservoir; #41446 (2014)

Michael Doerksen, Don Poruchny, Michael d'Entremont

Search and Discovery.com

... there is not a consistent offset to the events so the variance in event location was not a function of the velocity model. The error range for the events is 11.1 meters...

Statistical Analysis of the Petrophysical Properties of the Bakken Petroleum System

Aimen Laalam, Habib Ouadi, Ahmed Merzoug, Abderraouf Chemmakh, Aldjia Boualam, Sofiane Djezzar, Ilyas Mellal, Meriem Djoudi

Unconventional Resources Technology Conference (URTEC)

... the Tixier method based on three assumptions which are: the irreducible water saturation Swi has a linear function with grain surface area, the minimum...

Improving seismic interferometry for traffic noise by wavefield decomposition and deconvolution

Weiping Cao, Xuri Huang, Yezheng Hu, Yungui Xu, Jing Tang, Hai Yao

International Meeting for Applied Geoscience and Energy (IMAGE)

... of surface wave Green’s function can be achieved using a much shorter traffic noise record. We first introduce the methodology for the wavefield...

Geomechanical Approach to Resolve Severe Velocity Variations and Remove Image Distortions below Rugose Seafloor (Paper A16)

S. Birdus, A. Artyomov, L. Li, S. Xin

Geological Society of Malaysia (GSM)

... Seismic imaging and depth-velocity modelling below a seafloor with complex topography are always challenging. The problems are caused by two types...

Response Characteristics of an Ebb-Dominated Tidal Inlet Channel

Duncan M. Fitzgerald, Dag Nummedal

Journal of Sedimentary Research (SEPM)

... relates the rate of sand transport to the cube of the mean current velocity in the overlying water column. Using this equation the transport rates...

4D batchŽ FWI „ Sampling the null-space and random matrix theory

Madhav Vyas, Simon Luo, Esteban Díaz

International Meeting for Applied Geoscience and Energy (IMAGE)

... is a function of seismic acquisition, processing and other factors such as water-velocity variations. The part of the signal-to-noise equation...

EXTENDED ABSTRACT: Conforming and Non-Conforming Sands - An Organizing Framework for Seismic Rock Properties

Young, Roger A. and LoPiccolo, Robert D.

GCAGS Transactions

... is plotted against a measure of the offset dependent reflectivity. Using this approach Castagna and Swan graphically illustrated the continuum...

Seismic Signature as a Porosity Indicator in Early Miocene Reefs in the Madura Strait Via AVO Inversion and Modelling

Bimal R. Banerjee

Indonesian Petroleum Association

... Variations with Offset : Examples from South Sumatra. Geophysics Vol. 54 - No.8. Faust, L. Y, 1951. Seismic velocity as a function of depth and geologic...

Critical Porosity in Understanding Acoustic Porosity Anomalies. A Case Study in Complex Carbonate Reservoir in Indonesia

Aditya Arie Wijaya, Sunawar Kunaifi, Krishna Pratama Laya, Luqman, Dimmas Ramadhan

Indonesian Petroleum Association

... links the rock quality to change of the acoustic velocity as a function of critical porosity-bulk modulus for each rock type (Akbar, 2019). Niu et al...

Finite-difference wavefield propagation using superstepping

T. Nemeth, K. Nihei, A. Loddoch, A. Sekar, K. Bube, J. Washbourne, L. Decker, S Kaplan, Ch. Wu, A. Shabelansky, O. Cristea, Z. Yin

International Meeting for Applied Geoscience and Energy (IMAGE)

...of Petroleum Geologists Finite-difference wavefield propagation using superstepping function. Function GetGreensFunction returns all the Green...

EXTENDED ABSTRACT: Calibration of Predicted Pore Pressure: Perceptions and Pitfalls

Selim Shaker

GCAGS Transactions

... sediments due to pressure gradient drop from deeper to shallower depth. In this transition zone velocity, resistivity, and density increase...

Basic Types of Submarine Slope Curvature

Erwin W. Adams , Wolfgang Schlager

Journal of Sedimentary Research (SEPM)

... of these submarine slopes we digitized the sea-floor profile and converted two-way travel time into depth by using 1.54 km/s as the sonic velocity...

Estimation of Seismic Attenuation (Q): More Insight from Zero-Offset VSP

Mohammad Risyad

Indonesian Petroleum Association

.... RESULT AND DISCUSSION Logarithmic ratio of amplitude at two different depth levels from equation (2) is a linear function and can be rewritten...

Thermodynamic Behavior of Liquid-Supercritical CO2 Fracturing in Shale

Xiaojiang Li, Gensheng Li, Wei Yu, Haizhu Wang, Kamy Sepehrnoori, Zhiming Chen, He Sun, Shikun Zhang

Unconventional Resources Technology Conference (URTEC)

... model to simulate the impact of thermodynamic and heat transfer behavior on fracture initiation during CO2 fracturing. The velocity and pressure...

Deep learning to predict subsurface properties from injected CO2 plume bodies using time-lapse seismic shot gathers

Son Phan, Wenyi Hu, Aria Abubakar

International Meeting for Applied Geoscience and Energy (IMAGE)

... between the depth domain property contrast and the time domain seismic response to CO2 injection and plume body migration using a fully processed baseline...

Optimised 3D Land Geophysical Survey Design - A Case Study

P. van Baaren

Papua New Guinea (PNG) Petroleum Convention Proceedings

... a linear v(z) velocity function in calculations (Liner and Underwood, 1999), and using the migration process itself in which point diffractors...

Abstract: The Effects of Rock Texture and Pore Type on Sonic Velocity in Dolomite, by Shouwen Shen and Gregor P. Eberli; #90077 (2008)

Search and Discovery.com

Abstract: Impact of Pore Types and Mineralogical Composition on Seismic Wave Velocity of Khuff Carbonates, Central Saudi Arabia;

Moaz Salih, John Reijmer, Ammar El-Husseiny, Jack Dvorkin, Khalid Al-Ramadan

Search and Discovery.com

... of pore types and mineralogical composition on the P-wave velocity using samples of the Khuff Formation from Central Saudi Arabia. Ninety samples from...

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...

Abstract: Multi-Scale 2D Acoustic Full Waveform Inversion with High Frequency Impulsive Source; #90187 (2014)

Vladimir N. Zubov, Michael P. Lamoureux, and Gary F. Margrave

Search and Discovery.com

... for numerical solutions using iterative methods of linear algebra and numerical analysis, adapted for self-adjoint and positive definite linear problems...

Analytical Approach for Multivariate Exploration Planning via Secondary Migration Modelling

Amin Shokrollahi, Sara Borazjani, Syeda Sara Mobasher, Ulrike Schacht, Khalid Amrouch, Pavel Bedrikovetsky

Australian Petroleum Production & Exploration Association (APPEA) Journal

... the source rock to the trap. Modern reservoir simulators rely on numerical methods to model the oil/gas secondary migration. Using numerical simulators...

Geology-Driven Depth Stretching: An Alternative for Prestack Depth Migration

Search and Discovery.com

High-fidelity full-waveform imaging via impedance inversion

Feng Chen, Yu Zhang, Lian Duan, Weishan Han, Yilong Qin, Qianggong Song

International Meeting for Applied Geoscience and Energy (IMAGE)

... designed a simple experiment. We have a linear increasing velocity over the depth to provide us with the turning waves. We also have a density model...

Elastic FWI imaging of a complex presalt structure using NATS data

Arthur Henrique, Luiz Felão, Sergio Barragan, Florian Jouno

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Starting from the initial velocity model, A-TLFWI and E-TLFWI are run separately from 3.5 Hz up to 20 Hz using the raw data. FWI Images are computed...