Optimized downward continuation for the one-way wave equation in TTI media

Cosmin Macesanu, Faqi Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... because it is relatively more efficient compared to the two-way wave equation based reverse time migration (RTM). In addition, surface multiples in marine...

Upside down Rayleigh-Marchenko imaging: an application to the Volve ocean-bottom cable data

Ning Wang, Matteo Ravasi

International Meeting for Applied Geoscience and Energy (IMAGE)

...l multiples; this verifies the effectiveness of the UD-RM method in suppressing internal multiples. To further verify the reliability of the result...

Poststack Processing Steps for Preconditioning Seismic Data; #42399 (2019)

Ritesh Kumar Sharma, Satinder Chopra

Search and Discovery.com

... continuous events by reducing randomly-distributed noise, without suppressing details in the reflection events consistent with the structure. Usually, event...

Seismic Acquisition in the Papuan Fold Belt: A New Approach

G. S. Hill, S. J. Price, M. S. Foster, R. W. Stephenson, D. Ellis, J. A. Lyslo

Papua New Guinea (PNG) Petroleum Convention Proceedings

... deconvolution (160msec operator) NMO (velocity analysis every 1.25km) Outer trace mute (max. offset retained 18(K)m) Residual statics (2) DMO Stack (36 fold...

III Columbia Oil & Gas Investment Conference: Conventional & Unconventional Hydrocarbon Resources - Abstracts

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... filtering and Surface Related Multiple Elimination (SRME). Tau-p filtering fails because the moveout of primaries and multiples is too complex...

AVO-preserving seismic data interpolation by orthogonal polynomial decomposition and mathematical morphological filtering

Yanxin Zhou, Yangang Mo, Junzhou Liu, Dajian Jiang

International Meeting for Applied Geoscience and Energy (IMAGE)

... is suppressing noise and the other way is enhancing the reflection signal. For attenuating noise, methods based on filtering, signal decomposition can...

Utilizing the Two-Way Wave Equation: Reverse Time Pre-Stack Depth Migration

Matthew H. Karazincir, Clive M. Gerrard, Andrew Long, Lynn B. Comeaux

Indonesian Petroleum Association

... in time and high order in space domain finite differences, and use threading and domain decomposition methods to split the image cube amongst multiple CPU...

Identifying and Fixing Artifacts that Arise in Structure-Oriented Filtering; #42479 (2019)

Satinder Chopra, Kurt Marfurt

Search and Discovery.com

...-to-noise ratio deteriorates at both the low and high end of the spectrum. On unmigrated gathers, source-generated coherent noise such as multiples...

Subsalt image optimization in the Gulf of Mexico combining sparse OBN and legacy streamer data

Hongyan Li, Ruoyu Gu, Jarrod Hutson, Di Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... developed to discriminate multiples from primaries, therefore, suppressing multiples on migrated images. Reverse time migration (RTM) can accurately migrate...

Abstract: Joint OBN and 3-D DAS-VSP Data Acquisition and Processing in East China Sea; #91204 (2023)

Gang Yu1, Haibo Liu, Zhonglin Cao, Junjian Li, Jianguo Li, Yuanzhong Chen, Guangming He, Junjun Wu, Ximing Wang

Search and Discovery.com

... separation, velocity analysis and imaging. According to the characteristics of offshore 3-D VSP downgoing multiples, the offshore 3-D VSP downgoing multiple...

4D batchŽ FWI „ Sampling the null-space and random matrix theory

Madhav Vyas, Simon Luo, Esteban Díaz

International Meeting for Applied Geoscience and Energy (IMAGE)

... differences between the two vintages, instrument response correction and then take both the datasets through a complex processing sequence. This step...

Investigation of DMO Algorithms during Test-Line Processing: Some Recommendations

Ng Tong San, Mohd. Hashim Abas, Leong Lap Sau

Geological Society of Malaysia (GSM)

... not be used solely for suppressing high velocity linear noise and lessening back scattered energy. Other filtering options are available. INTRODUCTION...

Interpolation Using Higher Dimensions: A Case Study ON KE2 Three-Dimensional Transition Zone Seismic Survey, Madura Field, Indonesia

Cecep Sutisna, Frans Langitan, Vishal Kumar, Keat Huat Teng, Pongga Wardaya

Indonesian Petroleum Association

... related multiples (Verschuur et al., 1992). Source deghosting is required to increase the bandwidth of the acquired data by suppressing the source...

Abstract: A Phase Shift Plus Interpolation Extrapolation for Two-way Wave Equation Migration; #90172 (2014)

Jianhua Pan

Search and Discovery.com

.... In practice, both wavefields travel up and down when the velocity model is complex. This generates turning rays and multiples. In addition, the one-way WEM...

Pitfalls in Seismic Interpretation

Paul M. Tucker, Howard J. Yorston

Pacific Section of AAPG

... Multiples Example 16.   Example 16 has a central no-reflection zone reminiscent of the previously described reef. At the left there is also a nice wedge...

Characteristics of Microzonation Modelling in Reservoir Evaluation

Search and Discovery.com

Fracture identification by reflected guided borehole radar waves

Binzhong Zhou, Jianjian Huo, Iain Mason, Qing Zhao

Petroleum Exploration Society of Australia (PESA)

... µs long with a time sampling rate of 0.002 µs. Figure 1. Illustration of the phase differences of guided reflections from a lithological boundary...

Abstract: Strategies for suppressing heave effects in sub-bottom profiles from the upper Bay of Fundy, New Brunswick

R. White, K. E. Butler, P. Simpkin

Atlantic Geology

...Abstract: Strategies for suppressing heave effects in sub-bottom profiles from the upper Bay of Fundy, New Brunswick R. White, K. E. Butler, P...

Abstract: Residual Water-Bottom Multiple Attenuation in the Arabian Gulf, by Roy Burnstad and Mahmoud E. Hedefa; #90077 (2008)

Search and Discovery.com

Angle-constrained VSP least-squares reverse-time migration based on a high-efficiency stabilized Poynting vector

Xuan Ke, Mauricio Sacchi, Ying Shi

International Meeting for Applied Geoscience and Energy (IMAGE)

... suppressing VSP migration artifacts. Finally, experimental results on a localized Sigsbee model validate the efficacy and validity of our proposed method...

Processes Involved in Salt-Dome Development I: Dynamic Effects: ABSTRACT

I. Lerche, J. J. O'Brien

AAPG Bulletin

... the initiation of diapirism and suppressing the later growth of the salt structure, (d) the formation of a "mushroom cap" on a diapiric structure can...

Abstract: Suppressing Scattered Energy Effects Using Surface-wave Analysis: An application on Land Seismic Data; #91204 (2023)

Najoud AlOtaibi1, Dmitry Nikolenko

Search and Discovery.com

...Abstract: Suppressing Scattered Energy Effects Using Surface-wave Analysis: An application on Land Seismic Data; #91204 (2023) Najoud AlOtaibi1...

The Illumination of Natural Fractures and Faults of the Muskwa Shale Play in Northeastern British Columbia: A Case Study; #41507 (2014)

Jane Ling, William Barker

Search and Discovery.com

... clusters towards the heel. This could suggest that there is a fault in the NW-SE direction, suppressing microseismicity from growing outwards during...

The new method of sandbody connectivity characterization for fluvial reservoir and its application in Bohai oilfield

Xuetong Liu, Hebing Tang, Xuefeng Zhou, Zhenglong Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... at the signal with white noise, the IMFs and the remainder are obtained by EMD; (3)The average of IMF components from multiples EMD decomposition is the result...

Applications of Broadband Land Seismology; #70253 (2017)

Zhang Ruijie

Search and Discovery.com

..., Long-offset High-productivity, Nodal system, Point source/sensor; PROC: Statics, De-noise, De-multiples, Low-frequency recovery, Q-compensation...