Ritesh Kumar Sharma, Satinder Chopra, Larry R. Lines
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Zhuoquan Yuan, Yang He, Jean Ji, Vijay Singh, and Senren Liu
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Taejong Kim, Tefera Eshete, Xuening Ma, Kenny Lambert, Ken Pavloske
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Yi Huang, Jian Mao, Chong Zeng, James Sheng
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Chenhao Yang, Zhaojun Liu, Jianming Sheng, Bin Wang
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Chen Tang, Yang He, Jian Mao, Jianming Sheng
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Ritesh Kumar Sharma, Satinder Chopra, Larry R. Lines
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Ritesh Kumar Sharma, Satinder Chopra, James Keay, Larry Lines
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Ritesh Kumar Sharma, Satinder Chopra, Larry R. Lines
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Satyakee Sen, Sribharath Kainkaryam, Cen Ong, Arvind Sharma
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Satyakee Sen, Sribharath Kainkaryam, Cen Ong, Arvind Sharma
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N. Ratnett, S. Baldock, H. Masoomzadeh
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Perz, Mike Bruins, Candace Heim, Josef
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Pal, Himadri Masoomzadeh, Hassan Roende, Henrik Liu, Zhaojun Bate, Duncan Mason, Chuck
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Liu, Z. Wheaton, D. Wang, B.
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Li Li, Dhananjay Tiwari, Xinyi Sun, Zhiqiang Guo
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Langhammer, Jan Bate, Duncan Roende, Henrik Ha, Roy
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Jian Mao, James Sheng, Guy Hilburn
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Chopra, Satinder Marfurt, Kurt J. Sharma, Ritesh Kumar
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Chopra, Satinder Sharma, Ritesh Kumar Keay, James
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Cheng Cheng*, Yang He, Zhaojun Liu, Bin Wang
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Masoonzadeh, Hassan Baldock, Simon Liu, Zhaojun Roende, Henrik Mason, Chuck Pal, Himadri
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TGS
The massively parallel nature of Graphics Processing Units has made them an attractive platform for some computationally intensive algorithms. This.
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TGS
The Lower Zubair sand reservoirs have produced or shown oil in several but not all of the wells drilled in western and southeastern Kuwait. Evidence from.
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TGS
Conventional marine seismic data is affected by the interference from ghosts on both the source and receiver sides. The natural diversity provided by.
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TGS
The Angola basin is characterized by steeply dipping sediments with rapid changes in dip direction particularly in mini-basins between salt bodies. This.
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TGS
We develop an efficient scheme of illumination analysis along a target horizon. With this scheme, we can calculate the Directional Illumination (DI) from.
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TGS
We present a case study of the salt model building for a Gulf of Mexico area with a full azimuth (FAZ) dataset that was created by merging two orthogonal.
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TGS
We have developed an enhanced methodology for creating a 3D seismic migration volume from a set of 2D seismic lines. The key challenge is to interpolate.
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TGS
In land multi-component (MC) data processing, the orientation of each receiver's horizontal components in the field (H1 and H2) is seldom known.
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Arcis Seismic Solutions
As shale gas resources have emerged as a viable energy source, their characterization has gained significance. The organic content in these shales which.
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Arcis Seismic Solutions
In a marine environment, topographic features on the sea floor will usually be covered by a thick layer of shale with the rise of sea level, resulting in.
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TGS
In RTM imaging, double top salt (DTS) is frequently seen but difficult to remove by conventional post-RTM processing. This paper analyzes the DTS.
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TGS
A frequency domain tomographic inversion was developed to estimate frequency dependent energy attenuation by using prestack depth migration common image.
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Chuck Ursenbach
Two methods have recently been published for carrying out nonstationary spectral broadening (and narrowing) of PS data after it has been mapped into the.
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TGS
Broadband seismic aims to provide a greater richness of both (a), robust low frequencies – ideal for deep structure imaging, and (b), high frequencies –.
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Lifetime stability and reliability of fibre-optic seismic sensors for permanent reservoir monitoring
TGS
Permanent reservoir monitoring (PRM) using seabed arrays of seismic sensors is becoming a well recognised tool for optimizing production and increasing.
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TGS
A 3D inversion based Least-Squares Reverse Time Migration (LSRTM) technique was developed. The algorithm uses the RTM as the forward modeling and.
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TGS
The technology of using Tilted Transverse Isotropic Reverse Time Migration (TTI RTM) for subsalt velocity model building has been playing an important.
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Arcis Seismic Solutions
Seismic curvature attribute analysis forms an integral part of most interpretation projects as they yield useful information that adds value for the.
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TGS
In this abstract, we describe how to improve time domain full waveform inversion using source wavelet convolution, windowed back propagation and source.
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TGS
We present an imaging methodology that resulted in significant enhancements in defining the subsurface geology in a survey in the Appalachian Foothills..
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TGS
The data driven 3D true azimuth Common Focusing Point (CFP) data regularization technique is a multi-dimensional data regularization tool. It can be used.
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TGS
We propose a time-domain approach to transform a gather of pre-stack seismic data into an ensemble of highlyresolved traces in the transformed domain..
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TGS
Extensive sequences of flood basalts dominate the northwest European Atlantic margin. The basalt flows absorb and scatter the higher frequencies present.
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Wilfred Whiteside
Shot based pre-stack depth migrations such as RTM are used to generate a partial image volume for each input shot gather. The conventional migrated image.
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TGS
Anelastic properties of the earth cause frequency dependent energy attenuation and phase distortion in seismic wave propagation. It is preferred that.
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TGS
Increased industry exploration interest in the Tarakan Basin, offshore East Kalimantan, Indonesia, has stimulated a need for 3D seismic data that.
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Peter Cary
5D interpolation methods have proven to be capable of overcoming the constraints of actual data acquisition in a wide range of situations. However, in.
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Arcis Seismic Solutions
The discrimination of fluid content and lithology in a reservoir is an important characterization that has a bearing on reservoir development and its.
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Simon Baldock, Cristina Reta-Tang, Brad Beck, Wei Gao, Jun Cai, and Steve Hightower
We present results from a case study being performed in the Gulf of Mexico (GoM) that utilizes two orthogonal Wide Azimuth (WAZ) surveys to create an.
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TGS
The implementation and production application of fast Reverse Time Migration (RTM) algorithms, especially for Tilted Transverse Isotropic (TTI) medium, is.
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TGS
Tilted Transverse Isotropic (TTI) Reverse Time Migration (RTM) is routinely used for depth velocity model building. To improve the efficiency of RTM we.
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TGS
We present an advanced velocity model building and imaging methodology that resulted in significant enhancements in defining the salt flanks with.
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TGS
The Hoop Fault complex in the Southwestern Barents Sea presents an imaging challenge to accurately model the sharp velocity contrast across a major fault.
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Sang Suh
Three expanding domain methods are studied which include: (1) constant velocity layer, (2) eikonal equation solver and (3) amplitude comparison. The layer.
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TGS
A velocity anomaly zone with high contrasts and small wavelength variations is often a challenge for conventional depth imaging. It requires model details.
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TGS
Delayed Imaging Time (DIT) scans based on Reverse Time Migration (RTM) are often used in production to update velocity models, particularly in subsalt or.
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TGS
We have applied layer-stripping Reverse Time Migration (RTM) to several Gulf of Mexico (GOM) depth imaging projects. The key element of layer-stripping.
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TGS
We present a redatuming data regularization technique based on a 3D true azimuth Common Focusing Point (CFP) technique. It can effectively merge different.
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TGS
Here we present a case study of improved subsalt imaging for a wide azimuth (WAZ) survey in the Mississippi Canyon/Atwater Valley area in the Gulf of.
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TGS
A simultaneous anisotropic tomographic inversion algorithm is developed. Check shot constraints and appropriate algorithm preconditioning play an.
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TGS
Creating an angle gather is a conceptually simple process of plotting reflection amplitudes along the angle. Reflection or opening angle can be directly.
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TGS
A novel, de-aliased method called Stepwise Multiple Elimination using Linear Transforms (SMELT) is introduced as an alternative to 2-D Surface Related.
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TGS
In the implementation of TTI RTM, we meet stability problems and demands for speedup. Staggered Fourier first derivative and linear interpolation improves.
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TGS
A joint contractor-company project was undertaken to evaluate the practicality and utility of shallow high resolution reprocessing of large deepwater.
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TGS
In efforts to further improve final migrated images we have developed a new methodology for post-migration multiple removal in the migration depth domain..
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TGS
We present a case study of enhanced imaging of wideazimuth data from the Gulf of Mexico utilizing recent technologies; and we discuss the resulting.
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TGS
A data driven 3D true azimuth surface related multiple elimination (SRME) technique can be quite effective in removing surface related multiples for both.
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Gary Rodriguez
The long history of imaging in this area will be reviewed. Incremental improvements in data quality and interpretability will be shown. Processing efforts.
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TGS
A new salt velocity model building methodology is proposed which allows effective testing of different salt interpretation scenarios. In this methodology,.
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TGS
There has been a continually expanding interest in wide azimuth (WAZ) data in all its variations. We are now challenged to take full advantage of the.
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TGS
To identify and define a complex salt body with rugose top and base is essential in building an accurate velocity model for premium quality depth imaging..
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TGS
We have developed a new methodology for predicting and removing multiples in the migration depth domain based on wavefield extrapolation and attribute.
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TGS
To attain the benefits of simultaneous shooting in marine data acquisition, either the simultaneous sources have to be placed far apart to minimize the.
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TGS
A constrained propeller ship noise removal technique for OBC data has been developed. The constraints include the ship lane information, global linear.
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TGS
The conventional zero-lag crosscorrealtion imaging condition of reverse-time migration is subject to strong migration artifacts. This paper studies.
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TGS
Better de-multiple results are achieved by combining the strengths of SRME and wave field extrapolation techniques. In this paper, we illustrated three.
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TGS
Wide-azimuth (WAZ) data is the most significant advance to have occurred in seismic acquisition and processing since the introduction of 3D seismic in the.
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TGS
We present a case study of an anisotropic prestack depth migration (APSDM) project which used high-resolution, shallow tomography and anisotropic model.
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TGS
The workflow for the practical application of the automated focusing analysis in time domain is demonstrated by deriving the TTI anisotropy parameters,.
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TGS
Time domain and depth domain focusing operators are introduced to estimate anisotropic parameters. The fully automated time domain focusing operator to.
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TGS
Accurate salt interpretation involves an integration of geology and geophysics. In the practice of salt interpretation and model building in depth.
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TGS
It is well understood that accurate salt interpretation is critical to subsalt imaging. When reflections from the saltsediment boundaries are not.
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TGS
Immediately offshore of the Mississippi Delta the geological setting conspires with numerous production installations to produce a unique set of problems.
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TGS
Seismic anisotropy refers to seismic waves traveling with different velocity at different propagation angle, usually in consolidated, shale-prone areas.
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TGS
Despite the development of excellent techniques for predicting multiples such as convolution based or wavefield extrapolation based approaches,.
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TGS
Salt model building is a key process for successful subsalt imaging. In complex areas, Reverse Time Migration (RTM) provides better images than One-way.
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TGS
Wavefield extrapolation (WFE) multiple prediction typically operates in common shot domain, and is very effective to predict complex multiples such as.
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TGS
Reverse-time migration (RTM) provides superior images in areas where there are steep salt flanks or other complex geologic structures. However, the high.
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TGS
We present a case study of anisotropic model building and the resulting accuracy of event placement and improved image quality. Approximately 660 OCS.
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TGS
Subsalt wave-equation based migration (WEM) scan is an effective way for subsalt velocity updating, and has become an industry standard practice; however,.
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TGS
Compared to surface seismic, the increased complexity associated with seafloor seismic data (OBC) requires considerable attention to details if a.
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TGS
The goal of repeat imaging (detailed studies of prospects as new information is available) using PSDM is to generate new locations for both development.
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TGS
3-D prestack depth migration is the most time consuming part in velocity model building. To minimize the required iteration of depth migration, we first.
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BP
Wave equation (or wave field extrapolation) techniques have been used in industry for the past few years, with the purpose to improve the accuracy of 3D.
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