Understanding Hydraulic Fractures in Tight-gas Sands through the Integration of Borehole Microseismic Data, Three-dimensional Surface Seismic Data, and Three-dimensional Vertical Seismic Profile Data: A Jonah Field Case Study

Nancy House, Julie Shemeta

AAPG Special Volumes

... (Figure 6). Two calculations are made to find the event location. First, to find the distance and height of the event, the traveltime residuals, which...

Application of Zero Offset 2D CRS-Stack Method for Low Fold Data: Synthetic and Real Data Examples

R. Sule, A. Hendriyana, P. D. Anggraini, Fatkhan, Alfian, Sardjito, Waluyo, Adriansyah

Indonesian Petroleum Association

... is a second-order traveltime approximation of paraxial ray, which is given in terms of central ray coordinate of midpoint-half offset for segment...

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...

Gated based quantum computer algorithm for geophysical inversion

Jorge E. Monsegny, Daniel Trad, Don C. Lawton

International Meeting for Applied Geoscience and Energy (IMAGE)

... calculations, only forward modelling, and residuals calculation. We illustrate the algorithm with a small instance of a traveltime tomography problem...

Towards wave-equation ambient noise tomography of a landslide: The Harmalière case study

Giuseppe Provenzano, Grégory Biévre, Romain Brossier, Stéphane Garambois, Ludovic Métivier

International Meeting for Applied Geoscience and Energy (IMAGE)

...-wave velocity (Vp ) by 3D first-arrival traveltime tomography (TT). The ambient noise dataset is dominated by surface waves, down to frequencies as low...

Abstract: Simultaneous P-P and P-S Waveform Inversion Algorithm Using Pre-Stack Time Imaging Method ; #90187 (2014)

Hassan Khaniani, John C. Bancroft, and Eric von Lunen

Search and Discovery.com

... P-S data. This facilitates the updating process using the parameters of traveltime and amplitudes of scatter point. GeoConvention 2013: Integration...

Estimating Thermal Conductivity in Sedimentary Basins Using Lithologic Data and Geophysical Well Logs (1)

FREDERIC BRIGAUD , DAVID S. CHAPMAN , and SYLVIE LE DOUARAN

AAPG Bulletin

... parameters (gamma ray, neutron porosity index, sonic traveltime, and bulk density) calibrated by rock samples from gas wells in the Paris basin...

Prediction of multiple origin overpressure in deep fold-thrust belt: A case study of Kuqa subbasin, Tarim Basin, northwestern China

Changyu Fan, Gang Wang, Zhenliang Wang, Xiaojie Han, Jie Chen, Kuaile Zhang, and Baoshou Zhang

AAPG Bulletin

... can change trend in vertical compaction, which is expressed by the acoustic traveltime versus depth relationship or a loading curve...

Subtle Discontinuity Detection and Mapping for Carbon Sequestration Assessment in the Illinois Basin

J. H. McBride, R. W. Keach II, H. E. Leetaru, W. J. Nelson

AAPG Special Volumes

.... The seismic data are displayed in traveltime: no detailed velocity information is available for time-depth conversion; however, because the lateral variation...

A shallow velocity model building using full-waveform inversion on 3D onshore dataset

Young Seo Kim, Jewoo Yoo, Tong Fei, Ali Almomin

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity model to minimize time difference of the first arrivals between field and synthetic data. At the second stage, we perform traveltime-oriented FWI...

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...

Premigration attenuation analysis and mapping to image domain by weighted migrations

Yonghe Sun, Chunling Wu, Mark Fan, Zhemin Tan

International Meeting for Applied Geoscience and Energy (IMAGE)

... of frequency over the range of seismic frequencies (e.g., Aki and Richards, 2002, page 172; Liu et al., 1976; Kjartansson, E., 1979). The traveltime can...

Resolving DAS versus geophone discrepancies using the DAS transform: A comparative study from the CaMI CCS field research station, Alberta

Ali Sayed, Robert R. Stewart, Marie Macquet, Don Lawton

International Meeting for Applied Geoscience and Energy (IMAGE)

... were deployed to constraint model anisotropy using DAC WVSP data. The final anisotropic model was used to compute traveltime misfits between the ...

Improvement of Seismic Tomographic Imaging by Downward Continuation and Modified SIRT

Teuku A. Sanny, D. Santoso, D. Dahrin, Fatkhan, Alfian B.

Indonesian Petroleum Association

... of the direct arrival traveltime tomography. But the tomography image fails when applied in an area that has a Low Velocity Layer (LVL) in the top of objective...

Prestack Depth Imaging Within the Makassar Straits, Eastern Kalimantan, Indonesia

Chris Willacy, Suryadi Oemar, A. Edy Hermantoro, Paul Gilleran

Indonesian Petroleum Association

... traveltimes which are then evaluated for a least squares fit with the observed traveltime picks. The model is automatically updated in depth...

Refraction tomography at the Nova Ni-Cu mine

Ian James, Graeme Hird, Andrew Fitzpatrick

Petroleum Exploration Society of Australia (PESA)

.... A non-linear, first-arrival tomographic traveltime inversion (Zhang & Toksoz, 1998) was run until convergence was achieved. This process ray traces...

Influence of structure on Mississippian paleotopography and distribution of Middle Pennsylvanian sandstone reservoirs on the Cherokee platform, northern Oklahoma

Kevin J. Toth and James O. Puckette

AAPG Bulletin

... to the three-dimensional survey illustrating interpreted horizons. BP = BackProjection; L. = lower; TWT = two-way traveltime. The two-dimensional (2-D) and 3-D...

Abstract: P-wave and S-wave Near-surface Characterization in Northeast British Columbia (NEBC); #90174 (2014)

Liliana M. Zuleta and Don C. Lawton

Search and Discovery.com

..., 1959; Dufour, 1996) is useful for both depth and velocity determination. The basis of the plus-minus time analysis method lies in the traveltime...

Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014)

Andrew V. Barrett

Search and Discovery.com

... function, relating the surface to the image point in terms of traveltime as well as compensating for amplitude changes along the raypath. Commonly...

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

Hisao Ito

Search and Discovery.com

...-DTFast)/((DTSlow+DTFast)/2)*100 Where: ANIDT : Slowness-based anisotropy DTSlow : Slow shear slowness DTFast : Fast shear slowness Traveltime anisotropy...

Abstract: Data Processing from a Single-Well Microseismic Monitoring in Western Canada Using a Newly Developed MATLAB Based Package (Camps); #90224 (2015)

Jubran Akram and David W. Eaton

Search and Discovery.com

..., 2013). A traveltime table on the entire search grid, also known as look-up table, was generated by forward modeling the traveltime for the calibrated...

Figures

Search and Discovery.com

Characterizing seismic anisotropy and AVO using walkaway VSP: Willow oilfield, Alaska

Manish Lal Khaitan, Ali Sayed, Shujaat Ali, Trey Wagner, Jonathan Scorer, Brett Wendt

International Meeting for Applied Geoscience and Energy (IMAGE)

... Geologists Walkaway VSP for seismic anisotropy and AVO values along the receiver array. Traveltime inversion with the walkaway VSP traveltimes...

Efficient and accurate velocity building from Gramian-constrained multiphysics reflection and transmission data

Jide Nosakare Ogunbo

International Meeting for Applied Geoscience and Energy (IMAGE)

... resolution from the traveltime tomographic inversion and the computational cost associated with the FWI seriously limit their applications. Therefore...

River Seismic Operations in the West Siberian Lowland

A. K. Shmelev

Petroleum Geology: A Digest of Russian Literature

..., there is a discrepancy in the traveltime curves of the reflected waves. This discrepancy is thought to reach 0.015 sec., which is half the period of the registered...