Abstract: Tilt-Depth Method: A Simple Depth-Estimation Method Using First Order Magnetic Derivatives, by James D. Fairhead, Ahmed Salem, and Simon Williams; #90082 (2008)

Search and Discovery.com

Anisotropic depth migration in the Colombian Llanos Foothills as a key to understanding the structure in depth

emamedov

Search and Discovery.com

... with high dips and vertical and lateral velocity contrasts, giving a considerable lateral movement in the images in depth when we correct for seismic...

Subsidence measurement and improved statics solutions through accurate node depth determination during time-lapse deepwater OBN surveys

Priyanka Dutta, Denis Kiyashchenko, Kanglin Wang, Audun Libak, Endre Bergfjord, Ivar Mathias Grøvik, Remy Agersborg, Hugo Ruiz, Aiden Shen, Dunia Blanco Acuna, Todd Noble

International Meeting for Applied Geoscience and Energy (IMAGE)

... (left). Node-dependent bulk timing errors obtained from first arrival data while using AUV only (centre) and along with accurate relative node depth...

Understanding Seismic Amplitudes, by Steve Henry, #40135 (2004).

Search and Discovery.com

Facies and Stratigraphic Controls on Velocity Anomalies in The North Madura Platform, Offshore East Java Basin

Fithra Harris Darmawan, Shakila Bt Mustaffa, Aditya Kusuma Wijaya, M Nauvall Juliansyah, Geovani Kaeng

Indonesian Petroleum Association

... was conducted to correct the push-down effect by applying replacement velocity values within Wonocolo intra-reef tidal channel bodies. The resulted depth...

Velocity and Velocity

M. Al-Chalabi

Petroleum Exploration Society of Australia (PESA)

... which the stacking velocity derivation process is based on or the simplifying assumptions that are intrinsic in pre-stack depth migration models. Within...

Confirming Reservoir Geometry and Exploration Opportunity through 5D Interpolation PSDM in The Sub-ophiolite Zone, Banggai Sula Basin, Central Sulawesi

Mufied Ahmad, Dadang Ramdan, Yudi Herdiana, Abdullah Nurhasan, Arif Budi Mulyawan

Indonesian Petroleum Association

... ahead of schedule. Reflector’s depth is confirmed using not only velocity data from well W-20 but also from the neighboring field. New interpretation...

Unlocking the Potential of Conventional Narrow Azimuth Data by Full-Waveform Inversion: a Deep Carbonate Imaging Case Study, Offshore Indonesia

Jun Wang, Yonghe Guo, Putri Supriandini, Bahrul Yusrie, Natalia Anggriani

Indonesian Petroleum Association

... sensible velocity updates down to 3.5 kilometers. These updates to the model improve the seismic image and, importantly, reduce the depth...

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

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

Indonesian Petroleum Association

... was used to attack the water bottom and supra-fold multiples which are strong throughout the region. Velocity model building and prestack depth migration...

Meramec Velocity Systematics

Jing Fu, Carl Sondergeld, Chandra Rai

Unconventional Resources Technology Conference (URTEC)

... reservoirs, the Greenberg-Castagna shear-wave velocity prediction method does not yield accurate shear wave velocities, with observed mean errors varying...

I. Relation of Structural Section to Seismic Section

Robert E. Sheriff

AAPG Special Volumes

... on the seismic section. Thus a common-depth-point stacked section shows the calculated effect of having a source, and a receiver, coincident with each other...

Volume-constrain first arrival tomography based near surface modeling and its application

Naijian Wang, Zhihui Yan, Qingpo Ma, Wei Wu, Yunfei Zu, Yonggui Hu

International Meeting for Applied Geoscience and Energy (IMAGE)

.... However, due to the sparse distribution and the shallow depth of the near-surface investigation data, the effect of tomographic inversion using...

Abstract: Velocity Updating for Converted-Wave Prestack Time Migration; #90211 (2015)

Xiaogui Miao

Search and Discovery.com

... processing, the velocity ratio gamma (Vp/Vs) is estimated from C-wave data, and the S-wave velocity (Vs) is then derived from Vp and gamma. Therefore, errors...

Interpreting Stratal Architecture in Shelf-top Carbonate Systems: an Example from the Seven Rivers Formation, Mckittrick Canyon, New Mexico, U.S.A.

Benjamin P. Smith, Charles Kerans

Journal of Sedimentary Research (SEPM)

...). Conversely, Hunt et al. (2002) proposed a maximum depositional dip of only 2° and challenged the validity of estimates for reef depth, depositional dip...

Abstract: Q-estimation from Uncorrelated Vibroseis VSP Model Data; #90172 (2014)

Arnim B. Haase

Search and Discovery.com

...), and shallower, the near-field dominates, leading to increasing straight line fit errors with decreasing depth Z. Note the convergence of all three V(f...

Stabilizing two-term clock-drift inversion in ocean-bottom node processing

Beng Seong Ong, Zhaojun Liu, Carsten Udengaard

International Meeting for Applied Geoscience and Energy (IMAGE)

... and clockdrift. The biggest effect is due to water velocity variation. The clock-drift effect in this example is subtle but is flatter with clock-drift...

Abstract: Shear Log Estimation by Rock Physics Assist Machine Learning Approach an Offshore Abu Dhabi Case Study; #91204 (2023)

Hiroyuki Inoue

Search and Discovery.com

..., it is not simple to predict elastic log at the aquifer and historical mid-dip water injection regions and in seismic acquisition year. To solve it, we...

Interpretation of 3-D Data in Delineating a Subunconformity Trap in Block 34/10, Norwegian North Sea

G. T. Saeland, G. S. Simpson

AAPG Special Volumes

.... These errors include marking the section, timing the pick, posting the correct time in the correct position on a base map, and smoothing of data points...

The Suitable Method in Generating True Depth Structure Maps to Eliminate Wonocolo Push-Down Effect on Seismic Data and Its Impact on Prospect Evaluation, North Madura Platform, East Java Basin

Haryono Haryanto, Rizki Krishna Pratama, Riaz Alai, M. Afiq B. Mokhtar, Pongga Wardaya, Yonghe Guo, Jun Wang

Indonesian Petroleum Association

... function method resulted depth structure maps with unsolved push-down effect artifact, as it is not respecting lateral variation of velocity. 3D paleo...

Question of the Wind River Thrust, Wyoming, Resolved by COCORP Deep Reflection Data and by Gravity Data

Scott B. Smithson, Jon Brewer, S. Kaufman, Jack Oliver, Charles Hurich

Wyoming Geological Association

... by the effect of velocity variations Processing of the reflection data includes CDP sorting velocity analysis, and 24-fold CDP stacking. Then deconvolution...

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)

.... The cause of this mismatch has remained unexplained. Potential causes suggested are timing differences within the DAS and GEO acquisition systems, depth...

Tectonic and Geodynamic Evolution of the Northern Australian Margin and New Guinea

Joanna Tobin, Sabin Zahirovic, Rakib Hassan, Patrice Rey

Petroleum Exploration Society of Australia (PESA)

... default slab dip of 45° (that can be varied in the plate reconstructions), a radius of curvature, as well as an average sinking velocity. The thermal...

Inversion History of the West Natuna Basin: Examples from the Cumi-Cumi PSC

D. C. Ginger, W. O. Ardjakusumah, R. J. Hedley, J. Pothecary

Indonesian Petroleum Association

... depth conversion was carried out on a representative line for comparison purposes. Given the other errors inherent in the method and in velocity...

A Seismic Method for Estimating Subsurface Vp/Vs Ratio Based on Converted Waves: A Case Study From Arabian Gulf

Search and Discovery.com

Structural Trend Analysis by Axial Surface Mapping: Discussion

Donald S. Stone

AAPG Bulletin

... to theory Fig. 7. Stacking velocity curves from five dip lines from Texaco/Unocal 3-D survey viewed along strike direction (modified after Mastoris...