Image processing of jointly acquired 3D DAS-VSP data with an OBN survey in the Middle East

G. Yu, H. Liu, Y. Zhang, H. Chen, X. Li, L. Duan, G. Cambois, J. Cowell, J. Mason, Y. Chen, J. Wu

International Meeting for Applied Geoscience and Energy (IMAGE)

... procedure, joint domain full waveform inversion (JDFWI) for velocity model update, and one way wave equation multiple migration (OWEMM) method were...

Extended Abstract: Using Crosswell Measurements to Enhance Velocity Model Calibration for Real-Time Microseismic Monitoring

Leah J. Hogarth, Conrad Kolb, Joël Le Calvez

GCAGS Transactions

.... Measurements of the velocity field, reflectivity, and attenuation provide crosswell products such as traveltime and attenuation tomography (e.g., Carrillo...

A sliding box automatic relocation method based on geometric-mean reverse-time migration

Tong Bai, Zhendong Zhang, Malcolm C. A. White, Hongrui Qiu, Paul Williamson, Nori Nakata

International Meeting for Applied Geoscience and Energy (IMAGE)

... Berkeley National Laboratory SUMMARY Regional seismic networks typically monitor and locate seismic sources using only kinematic (i.e., traveltime...

Reservoir R factor estimation using 4D time-shifts induced by compaction at the Shearwater field, North Sea

Alejandro Jaramillo, Maria Mangriotis, Colin MacBeth

International Meeting for Applied Geoscience and Energy (IMAGE)

... based on the HBR model which assumes a linear relationship between velocity changes and strain. How to best constrain the R factor is an active topic...

Abstract: Simplified Processing of Converted Wave Data; #90224 (2015)

John C. Bancroft and Thais Guirigay

Search and Discovery.com

... for all depths. The traveltime to a vertical array of conversion points, defined in depth, can be computed with conventional methods such as ray tracing...

AAPG Memoir 76, Chapter 13: Consolidation State, Permeability, and Stress Ratio as Determined from Uniaxial Strain Experiments on Mudstone Samples from the Eugene Island 330 Area, Offshore Louisiana

Beth B. Stump and Peter B. Flemings

AAPG Special Volumes

..., scientific results, v. 150: College Station, Texas, Ocean Drilling Program, p. 377–384. Bowers, G. L., 1994, Pore pressure estimation from velocity...

Accelerated deep learning-based estimation of wavefront dips and curvatures and their application to 3D prestack data enhancement

Kirill Gadylshin, Ilya Silvestrov, Andrey Bakulin

International Meeting for Applied Geoscience and Energy (IMAGE)

... derivatives are used in slope- or stereo-tomography methods (Lambaré, 2008; Bakulin et al., 2021a) to estimate depth velocity models. Curvatures...

Combining high resolution modelling and one-way wave field extrapolation migration to image beneath a complex overburden: A case study from Porcupine Basin, Ireland

Partha Pratim Mandal, Weidi Koh, Julien Bluteau, David Laws, Jennifer Greenhalgh

Petroleum Exploration Society of Australia (PESA)

... The success of any depth velocity model building (VMB) process depends upon the quality of the input dataset. TECH TALK Figure 1: Map showing location...

Efficient physics-informed Bayesian inversion of VSP and hydrofrac data

Tian Qiao, George Turkiyah, Gerard T. Schuster

International Meeting for Applied Geoscience and Energy (IMAGE)

... throughout the high-dimensional model space. We present two applications of this physics-informed Bayesian inversion: VSP traveltime inversion and migration...

Effective Data Denoising and Imaging in the Sanga Sanga PSC Using CRS Approach

Michele Buia, Paolo Marchetti, Amalia Setoputri, Teguh Nugraha

Indonesian Petroleum Association

.... It presents several advantages when compared to conventional stacking methods such as NMO/DMO stack; firstly it uses a traveltime moveout formula...

Seismic Wave Attenuation in Gas Hydrate-Bearing Sediments from Vertical Seismic Profiling Data, Mallik, Northwest Territories, Canada

Gilles Bellefleur

Search and Discovery.com

... ) z0 z  z0 c(Z ) where W is the traveltime, ] is the depth, and c(Z ) is the complex velocity. Several models relate the complex velocity...

Seismic Wave Attenuation in Gas Hydrate-Bearing Sediments from Vertical Seismic Profiling Data, Mallik, Northwest Territories, Canada

Gilles Bellefleur

Search and Discovery.com

... ) z0 z  z0 c(Z ) where W is the traveltime, ] is the depth, and c(Z ) is the complex velocity. Several models relate the complex velocity...

Time-Lapse Seismic and Geomechanics

Martin Landrø, Lasse Amundsen

GEO ExPro Magazine

... that such stretching will reduce the P-wave velocity of the rock, and hence will introduce an overburden time shift. Guilbot and Smith (2002) used 4D...

Abstract: A Listric Model of the Naga Thrust and Fold Belt, Assam, India;

Brandy Hawkins, Priyank Jaiswal, Jack Pashin, Caroline Burberry, Rahul Dasguta

Search and Discovery.com

... of traveltime tomography and pre-stack depth migraton to image the profile as a whole. Then, we imaged the fine-scale suprathrust structure using full...

Structural segmentation in the Qiongdongnan Basin, South China Sea: Insights from analogue models and implications for hydrocarbon exploration

Gengxiong Yang, Hongwei Yin, Jun Gan, Wei Wang, Jitian Zhu, Dong Jia, Xiaofeng Xiong, and Wenqiao Xu

AAPG Bulletin

... of deep preexisting faults. The influences of the initial crustal rheological structure and extensional velocity, which are closely related to depth...

Late Cretaceous-Cenozoic Development of Outer Continental Margin, Southwestern Nova Scotia

Stephen A. Swift

AAPG Bulletin

... (1975) found paleocanyons on the upper rise, within the diapir province, Table 1. Interval Velocity and Depth Versus Traveltime Functions End_Page...

1.2 Seismic Stratigraphy: 1.2.5 Clastics: Abyssal Sediment Waves

G. S. Mountain and B. E. Tucholke

AAPG Special Volumes

... 2. L-DGO Line 77 in two-way traveltime and in depth. The accompanying line drawing in time shows irregular discontinuous reflectors immediately...

Combination of Seismic Velocity Gradient and Sonic Gradient Variation as a Hydrocarbon Indicator: A Case Study in Clastic Reservoirs in South Sumatra

Iswani Waryono, Wahyu Triyoso

Indonesian Petroleum Association

...Combination of Seismic Velocity Gradient and Sonic Gradient Variation as a Hydrocarbon Indicator: A Case Study in Clastic Reservoirs in South Sumatra...

An Efficient Approach for Quantifying the Uncertainty in Groundwater-model Predictions

V. A. Kelley, S. Mishra

AAPG Special Volumes

... of a surrogate traveltime measure and to then accurately reproduce the performance-measure statistics with only a few forward simulations...

ABSTRACT: An Integrated Approach to Pressure Prediction from 3D Seismic Data, by Mike French and Dr. Nader Dutta; #90913(2000).

Search and Discovery.com

Growth and demise of a Paleocene isolated carbonate platform, northwest Sirte Basin, Libya: Sequence stratigraphic architecture and controlling factors

Muneer Abdalla, Wan Yang, and Salah Shaniba

AAPG Bulletin

... bounded by unconformable sequence boundaries. Those seismic sequences are ∼450–550 m thick in two-way traveltime and have an aerial extension of at least...

Upside down Rayleigh-Marchenko imaging: an application to the Volve ocean-bottom cable data

Ning Wang, Matteo Ravasi

International Meeting for Applied Geoscience and Energy (IMAGE)

...m, 6750 m, and 7500 m) for both mirror migration method (Figure 4a) and the UD-RM method (Figure 4b). Since the velocity is generally increasing over dept...

Two-dimensional seismic refraction tomography of a buried bedrock valley at Hallsands beach, Devon, United Kingdom

Eric B. Avalos, David H. Malone, Eric W. Peterson, William P. Anderson, and Roland W. Gehrels

Environmental Geosciences (DEG)

.../s (6900-ft/s) velocity contour, which shows bedrock depth at approximately −1-m (3-ft) elevation. This correlates with bedrock located in core 8...

Abstracts: Sonic Scanner Logging at Site C0009 of IODP Expedition 319, NanTroSEIZE; #90173 (2015)

Hisao Ito

Search and Discovery.com

... S wave anisotropy. Dispersion analysis was applied to find that stress induced anisotropy is dominant for almost entire depth interval. We also found...

Characteristics of Deep Bahama Channels in Relation to Hydrocarbon Potential: GEOLOGIC NOTES

Henry T. Mullins , George W. Lynts , A. Conrad Neumann , Mahlon M. Balls

AAPG Bulletin

... erosional unconformity. Seconds of two-way acoustic traveltime are marked on left; water depth in meters on right. Profile was obtained using 10-cu in. (164...