Three-Dimensional Depth Imaging of Seismic Data, with Examples from the Overthrust Belt of Southwestern Wyoming

Alvin K. Benson

Wyoming Geological Association

... for the depth imaging process. When a grid of data is available, the imaging is typically done in 3-D. In the second case study, a 2-D depth-imaged section...

Abstract: A Ray+Waveform Inversion for the Potency Tensor; #90187 (2014)

Scott Leaney and Chris Chapman

Search and Discovery.com

... axes and associated strike, dip and rake angles (e.g. Leaney and Chapman, 2010). These distortions can be obviated by decomposing the potency tensor...

Dude, wheres my AVO? A case study from the Browse Basin, North West Shelf, Australia

Said Amiribesheli, Jordan McGlew, Joshua Thorp

Petroleum Exploration Society of Australia (PESA)

... an approximation to the anisotropy parameter, ETA in PSTM workflows, without having the additional complexity of a second term to analyse. However...

SG14: The COCORP Seismic Reflection Traverse Across the Southern Appalachians - Data Acquisition and Processing

Frederick A. Cook, Larry D. Brown, Sidney Kaufman, and Jack E. Oliver

AAPG Special Volumes

.... On Figure 2 these lines are denoted as lines 1 and 2 in Tennessee, and lines 1 through 4 in Georgia. During the second phase of operations, in 1980, 349...

Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)

Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson

Search and Discovery.com

... the pre-stack time migration image and the anisotropic pre-stack depth migration image were disappointingly small. With the second processing, we...

The calculation of first-arrival P-wave traveltime for attenuating TTI media

Mengxiu Wang, Jingyi Chen, Zhengcong Zhao, Kaiyuan Ji, Shaoying Chang

International Meeting for Applied Geoscience and Energy (IMAGE)

... and Alkhalifah (2017a) derived an acoustic eikonal equation using the acoustic approximation in attenuative VTI media. Many works have been performed...

Geophysical Study of a Magma Chamber Near Mussau Island, Papua New Guinea

S. V. Dadisman, M. S. Marlow

Circum Pacific Council Publications

... at a depth of about 4.4 s subbottom and can be traced laterally for 2.6 km. On shot gathers, the reflection demonstrates normal moveout appropriate...

Fault Criteria

Francis F. Campbell

GCAGS Transactions

... correlations and geophysical dips; 4) misclosure around a grid unit of seismic control; 5) dip pattern along several lines of control; and 6) diffraction...

The Use of Modern 3D Seismic Data Processing Techniques, 5D Interpolation, and Anisotropic PSTM to Improve Existing 3D Data in South Louisiana Data—Pulling the Scales from our Eyes; New Truth from Existing Datasets

John Asma, John Stevens, Sukhdev Hyare, Dave Spaulding

GCAGS Transactions

... to provide the answer. Second, they exist. Often access to the surface where data were recorded has become difficult or impossible. Open pasture may...

Abstract: Multi-Vintage, Pre-Stack Calibration of 3-C 3-D Time-Lapse Seismic Data; #90171 (2013)

Igor B. Morozov and Le Gao

Search and Discovery.com

... deconvolution or spectral whitening. At the second stage, pre-stack records can be calibrated within each of the multi-component, multi-vintage ensembles...

The Geophysical Aspects of Abnormal Fluid Pressures

Edward B. Reynolds, John E. May, Alf Klaveness

Houston Geological Society

... to Pressure Prediction-Velocity Analysis 32   Velocity Analysis Sources of Error 33     Dipping Beds 33     Normal Moveout Error 33     Faulting...

Prestack true-amplitude angle-domain viscoelastic least squares reverse time migration

Yue Wang, Yang Luo, Peng Shen, Jingru Chen, Guangchi Xing, Ao Cai, Mark Fan, Guojian Shan, Lin Zhang, Xiaoting Lou, Zhengyun Zhou

International Meeting for Applied Geoscience and Energy (IMAGE)

... accurate moveout, which is critical for velocity model building, and accurate amplitudes, which are critical for viscoelastic property estimation. m1...

2D isotropic and vertical transversely isotropic RTM using SEG Hess VTI Model

Richa Rastogi, Abhishek Srivastava, Monika Gawade, Nithu Mangalath, Laxmaiah Bathula, Bhushan Mahajan, Suhas Phadke

International Meeting for Applied Geoscience and Energy (IMAGE)

... wave equation for wavefield extrapolation and avoids the approximation of wave equation. RTM algorithm is computationally very expensive. Higher...

Gaining Insight into Formation Anisotropy Using Full Azimuth Imaging and Analysis Tools

Duane Dopkin, Anat Canning, Philip Neri

Indonesian Petroleum Association

... a detailed automatic residual moveout/velocity analysis in a robust and effective way. MULTI AZIMUTH VELOCITY ANALYSIS There are two ways to deal...

EXPLORATION PROBLEMS OF THE WILLISTON BASIN*

K. E. BURG

Montana Geological Society

... indicate the time in tenths of a second earlier and later than the Jurrasic. The westward time divergence between the three top reflections...

Fault Interpretation Problems in the Southeast Barrow Sub-Basin

R. K. Whyte

Petroleum Exploration Society of Australia (PESA)

.... This paper is concerned with two of them. First, the fault profiles can be complex, variable and difficult to interpret accurately. Second, those parts...

Hybrid Velocity Model Building: 3D Ocean Bottom Cable (OBC) Orthorhombic Full Waveform Inversion (FWI) Depth Imaging of a Complex Geological Structure, Western Berau - Papua, Indonesia

Purbo Santoso, Yayat Supriatna, Tepy Septyana, Leo Tjahjadi, Yonghe Guo

Indonesian Petroleum Association

... geophysical problems (Tsvankin, 1997). It is usually regarded as the most practical realistic approximation of earth subsurface because it combines...

Seismic Reservoir Characterisation of a Channel Sand Oil and Gas Field, Malaysia (Paper A11)

T. J. Focht, M. Sams, D. Brookes, J. Ting

Geological Society of Malaysia (GSM)

... anomaly down dip to the south. Two encountered gas, oil, and water. All three penetrated approximately 30 meters of good quality, channel sandstone...

Modified Residual Migration

Craig J. Beasley, Rolf Klotz

Southeast Asia Petroleum Exploration Society (SEAPEX)

..., that can readily incorporate dip-dependent velocity. However, as discussed below, in practice, a small-dip approximation to equation (2) can be used...

Designing Coal-Bed Methane Seismic Acquisition Survey Parameters Using Finite Difference Modeling

Abdul Haris, Befriko Murdianto, Adriansyah

Indonesian Petroleum Association

... of the wavefield, shot records, as well as exploding reflector models. FD can be implemented using second order and fourth order approximation...

Chart Migrations

Frank A. Roberts

Oklahoma City Geological Society

...Chart Migrations Frank A. Roberts 1958 305 307 1 Pirson, Sylvain J.: "Practical Graphical and Approximation Methods for Dip Shooting Calculations...

A New Method of Multiple Attenuation: Multiple Identification and Subtraction

Search and Discovery.com

... significant 10 ms moveout multiple (Figure 1 (f) and (g)). In second synthetic data example (model B) there are twenty five events with many overlaps...

Seismic Reflections from a Lau Basin Magma Chamber

Janet L. Morton, Norman H. Sleep

Circum Pacific Council Publications

... stacking, migration, and dip filtering. For a deterministic deconvolution it is necessary to have an estimate of the source wavelet. In an area...

High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia

Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree

Indonesian Petroleum Association

... depth, enhanced high-definition tomography (EHD tomography; Reinier et al., 2021) was then applied. EHD tomography exploits offset-dependent dip...

Data Enhancement from a 486-Channel Streamer

Bill Dragoset, Ken Larner

Pacific Section of AAPG

... frequency components. The amount of attenuation depends on the velocity distribution, array length and offset, and reflector dip and depth. Figure 5...