Full Waveform Inversion on Bekapai Field: A Game-Changer Technology for Our Seismic Imaging Workflows

Magali Beele, Clement Fleury, Claudio Strobbia, Muhammad-Thurisina Choliq, Jacques Bonnafe, Gilles Vallon

Indonesian Petroleum Association

... traces. CGG provides the initial velocity model obtained by merging the OBC fast-track pre-stack depth migration (PSDM) velocity model...

A case study of TORT migration imaging of strike-slip faults in Mahu area, Junggar Basin

Hanqing Huang, Daoshan Li, Wei Chai, Hongdan Gu, Yongchang Lv, Yong Wang, Lijuan Huang, WenShan Luo

International Meeting for Applied Geoscience and Energy (IMAGE)

... of vertical strike-slip fault development. The accuracy of TORT migration imaging is improved effectively. As shown in Figure 1, we can see that the velocity...

Relation between dips of prestack time migrated and unmigrated data

Jagmeet Singh

International Meeting for Applied Geoscience and Energy (IMAGE)

... the correctness of the migration velocity model and revise velocities in an easy to determine direction (increase or decrease). A handy formula...

Analysis of the impact of demigration on traveltime-based reflection full-waveform inversion

Hong Liang, Houzhu (James) Zhang, Hongwei Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

...osite sign of ∆𝜏, we generate surface offset gather (SOG) and show one SOG (offset spacing is 200 m) in Figure 3a. Due to the slow migration veloci...

Optimizing Perforations; #42159 (2017)

David J. Hatton, Payam Kavousi Ghahfarokhi

Search and Discovery.com

... for a robust well performance: production, hydraulic fracturing, and proppant migration. To optimize production, the near-bore pressure losses must...

ABSTRACT: Multi Focusing Stack Technique for Subsurface Imaging; #90118 (2011)

Sunjay Sunjay

Search and Discovery.com

... seismology –precise subsurface imaging , can be done in different ways and in different domains: time or depth. Although depth migration has become almost...

ABSTRACT: 3D Pre-Stack Depth Migration of a Land Survey with Considerable Multiple Interference - A Case History; #90051 (2006)

Frederick Kierulf, Adam Fox, Luke F. LaFreniere

Search and Discovery.com

... were created using check shots, sonic logs, pre-stack time migration root mean square velocities and pseudo apparent interval velocities. Velocity model...

Fracture Identification with Seismic Data, XinChang Field, China, by Peter Stewart, John Tinnin, James Hallin, and Jim Granath, #40370 (2008).

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Abstract: Pre-Stack Depth Imaging in Complex Thrust-Belt Environment: A Case Study from Cohat Basin, Onshore Pakistan; #90319 (2018)

Hany M. Hussein, Mohamed Baioumy, Tamer Saleh, Olga Zdraveva, Moataz Soufy, Ghada Mohamed, Hossam Abdel Wahab, Sajid Mahmood, Muhammad Noor Asim, Shaukat Khan, Ivica Mihaljevic

Search and Discovery.com

... and irregularity, steep dips and strong velocity heterogeneity cause complex wave propagation and require advanced prestack depth migration (PSDM) to resolve. Key...

Simulation of seismic waves in the fluid-solid coupled thermoelastic medium

Sen Yang, Guochen Wu, Junzhen Shan, Hongying Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

.... (a) P-velocity; (b) Temperature. The remaining elastic parameters are derived from the conversion of Pwave velocity. Fig. 5 shows the migration...

RTM method of prismatic-waves under the undulating surface: A case study of the Longmen Piedmont

Bo Ma, Yingming Qu, Zhenchun Li, Jianggui Zhu, Chang Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... migration of prismatic waves for undulating surfaces involves the following processes: (1) Coordinate transformation of the velocity model...

Advanced VSP modeling for efficient data acquisition in deepwater subsalt well

Manish Lal Khaitan, Rafael Guerra, Francesco Miranda, Emmanuel Spadavecchia

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity model, and improve the image of the subsalt reservoir. An expensive drilling rig placed a constraint on the number of seismic source...

Unconventional Play Fracture Characterization Through Orthorhombic Depth Model Building

Guy Hilburn, Amit Pendharkar, William Keller, René Mott, Jorge Peinado, Austin Jumper, Victor Kriechbaum

Unconventional Resources Technology Conference (URTEC)

... velocity function to attempt to correctly position events vertically, and an azimuthal correction may be applied to the final image gathers...

Depositional Model of Point Bars in the Lower Wabash River

Roscoe G. Jackson II

Journal of Sedimentary Research (SEPM)

... assumed fully developed zones for current velocity and for bed-material size (velocity magnitude and mean size increasing from the inner bank toward...

Application of combined inversion of lithofacies and impedance based on rock physical constraints in sandstone characterization in Liaodong Bay of Lvda area

Xun Liu, Wei Gao, Huihuang Tan, Yu He

International Meeting for Applied Geoscience and Energy (IMAGE)

... findings, there are the lacustrine fan sandstone, lacustrine fan mudstone with low velocity and the lacustrine fan mudstone with high velocity. The analysis...

Dynamics of Bedforms in the Lower Mississippi River

David J. Harbor

Journal of Sedimentary Research (SEPM)

... to predict bedform dynamics from synoptic hydraulic data; for example, Johnson (1879) determined that bedform migration was a function of flow velocity...

Abstract: Improving the Image: 5D Interpolation and COV Gathering of a MegaBin’ Survey; #90171 (2013)

Darren P. Schmidt, David Gray, Xinxiang Li, Daniel Trad, and Jon Downton

Search and Discovery.com

.... Clair, C., 2008, Wide azimuth imaging and azimuthal velocity analysis using offset vector tile prestack migration, First Break, 26, 9, 103-107. http...

ABSTRACT: Application of Fully Integrated Quantitative Basin Analysis Model: Oseberg Area, Norwegian North Sea, by Birger Dahl, Egil Nysaether, C. Gordon Speers, and M. Arif Yukler; #91038 (2010)

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Abstract: AVO Analysis of Long Offset 2D Data in the Western Gulf of Mexico, by Jess B. Kozman and Fred Hilterman; #90914(2000)

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Abstract: Deepwater Shale Depositional Systems: Seismic Sedimentology, by W. R. Almon, L. R. Goggin, W. C. Dawson, and F. Duque-Botero; #90090 (2009).

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Abstract: Optimizing Channel Sand Delineation using Full-Wave Seismic Interpretation; #90211 (2015)

Ron Larson and Murray Roth

Search and Discovery.com

... analysis, detailed statics and 3D prestack time migration. Initial, qualitative analysis revealed that PP seismic structure and PS seismic amplitudes...

Pre-Stack Seismic Data Analysis with 3D Visualization … A Case Study; #41546 (2015)

Yongyi Li, Josh Feng, Maggie Jiao

Search and Discovery.com

...Pre-Stack Seismic Data Analysis with 3D Visualization … A Case Study; #41546 (2015) Yongyi Li, Josh Feng, Maggie Jiao Pre-Stack Seismic Data Analysis...

An Inverse Approach for Relating Seismic Velocity and Overpressure to Permeability and Sedimentation History in Deep Basins, #40863 (2012)

Hector M. Moreno, Tim A. Minshull, Rosemary A. Edwards,

Search and Discovery.com

... hydrocarbon migration in deep basins and thickly sedimented Figure 5. Final sedimentary velocity models for Lines 1, 2, 3 and 4, with 1-D comparisons...

Three-Dimensional Seismic Method: Part 7. Geophysical Methods

Oz Yilmaz

AAPG Special Volumes

... midpoint (CMP) gathers, while in 3-D processing, traces are collected as common-cell gathers (bins). These gathers are used in velocity analysis...

Quality Data at a Reduced Price: Innovative Approaches in 3-D Acquisition and Processing

Mars E. Semaan, Michel F. Bee, Maryanto, Gerard Dufourd, Eddy A. Sentani

Indonesian Petroleum Association

... Preliminary velocity analysis every 0.5 km on average Generate selected inlines and crosslines of Velocity Stacks First pass of calculation...