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Keywords: repeatability
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Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4090464
... workflows to address them. geologist geological subdiscipline application geology correction applied geoscience & energy 10 workflow variation exploration geophysicist gulf american association repeatability reservoir characterization acquisition water velocity reservoir window...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4091866
... a 4D OBN project as an example, firstly, from the perspective of geometry characteristics and resource input, comparison and assessing the repeated shot or/and receiver point used for splicing in both inline and crossline orientation. Subsequently, the optimization of geometry and the design method...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4093093
... We propose a new method for improving 4D repeatability by utilizing more of the acquired streamer seismic data than is used in traditional 4D processing. In addition to the surveys obtained through conventional 4D binning (i.e. minimum dsdr or repeatability enhanced smart binning), a quasi...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4096030
... repeatability reservoir characterization noise snr applied geoscience & energy 10 nrm exploration geophysicist seismic data geologist economic geology correlation acquisition geometry seismic survey survey design nrm value american association silvestrov desert environment receiver...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4099790
... Time-lapse seismic is a mature technology for oil and gas reservoir monitoring. Non-repeatability is a critical factor affecting the quality of time-lapse seismic data, as it introduces artifacts known as 4D noise that impair the interpretation of reservoir signals. The issue of 4D noise...
Proceedings Papers

Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 27–September 1, 2023
Paper Number: SEG-2023-3899915
... exploration geophysicist walkaway vsp dataset time-lapse fwi international geologist enhanced recovery vertical seismic profile onshore abu dhabi american association energy 10 repeatability rock-physics modeling applied geoscience society validate CO2-EOR monitoring using time-lapse FWI...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581652
... reach a high data quality after poststack processing regardless of the acquisition time. upstream oil & gas deblended data repeatability processing performance poststack processing applied geoscience m-dsa survey exploration geophysicist 10 reference sweep predictability frequency...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594752
... preprocessing. Imperfect repeatability of the baseline and monitor surveys also introduces uncertainties into the inverted time-lapse changes. To address these issues, we propose a 4D FWI approach, which jointly inverts both baseline and monitor data sets using a time-lag cost function with a target-oriented...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3580596
... The repeatability of time-lapse seismic data is determined by the geometry repeatability, sources and other factors. The non-repeatability caused by the non-repeatability of the geometry is hard to reduce. Therefore, it is important to evaluate and monitor the geometry repeatability during...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583439
... Monitoring of geological reservoirs using 4D seismic faces many challenges. The repeatability between different surveys needs to be optimal in which changes are only present in the target zone. Ideal conditions require having the same acquisition parameters for each survey and no near-surface...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428398
... acquisition repeatability and the frequency bandwidth of the useful seismic signal at target level are improved. Since the low frequency part of the seismic signal has a direct impact on the reliability of seismic amplitude inversion, this has led to improving relevant 4D resolution which is crucial during 4D...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3413983
...:20 AM Presentation Time: 10:10 AM Location: Poster Station 2 Presentation Type: Poster artificial intelligence platform repeatability upstream oil & gas gravity change subsidence reservoir characterization subsidence monitoring sensitivity fluid dynamics subsidence measurement...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3424773
.... Alkhalifah, 2020, Deep learning tomography by mapping full seismic waveforms to vertical velocity profiles: 82nd Conference and Exhibition, EAGE, Extended Abstracts, 1 5, doi: httpsdoi.org/10.3997/2214-4609.202011980. Kragh, E., and P. Christie, 2002, Seismic repeatability, normalized rms, and predictability...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426740
... reservoir characterization repeatability stiff reservoir exploration geophysicist 10 migration water velocity variation upstream oil & gas expanded abstract application structural geology seismic monitoring seg international exposition processing flow correction static...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215586
... a hybrid acquisition system utilizing buried receivers, combined with time-lapse processing, can achieve highly repeatable data capable of detecting weak 4D signal. For surveys acquired under similar climatic conditions, average NRMS values of 2–5% have been observed, enabling detection of small reservoir...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215864
... for different application scenarios. In this workflow, the optimal number of clusters is automatically determined using a method based on the repeatability of the clustering results. The clustering is performed using the Gaussian mixture model (GMM), addressing the fact that different realizations of GMM could...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216260
..., repeatability must be more completely established in this second case, which involves different time and length-scales. If the macroscopic bracing parameter introduced to reproduce data variations associated with these transient reservoir fluid property changes can be inverted for, such models would constitute...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216776
... ABSTRACT Time-lapse seismic monitoring has been conducted at the Aquistore CO storage site starting in 2012. Surveys occurred for 0, 36, 102, and 141 kilotonnes of injected CO. We present new results from 2018 3D time-lapse seismic monitoring at the site which represent the 5th repeat 3D...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3201739
... interpretation at the reservoir interval. The time-lapse surveys used in this deghosting test were acquired in 2012 and 2014, over the Usan field, offshore Nigeria, using near identical acquisition parameters, which resulted in good repeatability and 4-D fold of coverage. Presentation Date: Monday, September 16...

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