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Keywords: noise level
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Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4087203
.... The flow-induced vibrations are recorded by two externally mounted accelerometers on the AICD housing. Our focus is on understanding the relationship between noise level across various frequency bands and the bulk flow rate passing through the AICD, considering the full WC range from 0 to 1. Notably, we...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4091851
... applied geoscience node system noise random noise attenuation noise level noise economic geology noise attenuation variation exploration geophysicist signal perturbation receiver american association From geophone arrays to point receivers: implications for sensor and land survey design...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4094168
... bandlimited well logs in amplitude. Thus, the vertical variations in properties may be considered absolute. This has the attraction for time-lapse analysis that time-lapse differences may be considered absolute within the bandwidth. reservoir characterization gradient noise level inversion elastic...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4098603
... wavefield algorithm noise level artificial intelligence discovery acoustic wave equation alkhalifah applied geoscience & energy 10 unit-constrained data-driven discovery unit constraint genome potential equation physical unit exploration geophysicist Unit-constrained data-driven...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428398
... production mechanisms. Presentation Date: Monday, October 12, 2020 Session Start Time: 1:50 PM Presentation Time: 3:05 PM Location: 362D Presentation Type: Oral upstream oil & gas broadband reservoir monitoring interpretation noise level multicomponent streamer acquisition seg...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3415697
... factor can be automatically adjusted according to the noise level of seismic data and obtain the best compromise between resolution and stability of the inversion result. Numerical and real data examples validate the adaptive ability and high-resolution advantages of the proposed method, which indicates...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3413533
... the gas detectability as a function of the 4D noise. predictive model. Due to relatively high noise levels in Next, the prior gas detectability is calculated from the comparison to the expected 4D signal, we show that reservoir model. Then it gets updated with the 4D quantitative models fail to be useful...
Proceedings Papers
Dmitry Alexandrov, Leo Eisner, Jacek Trojanowski, Umair bin Waheed, Sanlinn Isma'il Ebrahim Kaka, Stewart Alan Greenhalgh
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216224
... ABSTRACT Microseismic monitoring aims at detecting as weak events as possible by maximizing the signal-to-noise ratio (SNR) of the detection parameters. Whilst the signal depends on a priori unknown source radiation and propagation effects, the noise levels on the receivers can be measured...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216776
... survey. 3D data were acquired using both surface-based permanent geophones and DAS-based VSP. A comparison of noise statistics for different data vintages shows higher noise levels during the most recent survey. In spite of this, robust amplitude difference images for the reservoir interval continue...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216656
... technique is capable of estimating and removing both spatially incoherent noise and inconsistent noise across multiple components. We show two real-world examples fromWestern Australia that were collected using the AIRGrav instrument. The estimated noise levels are consistent with previous data analysis...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2991952
... minutes vs. 30 minutes for a conventional system). Although the data acquired is lower quality, due to the higher noise level, it is still sufficient for shallow applications and can be improved by stacking. Presentation Date: Wednesday, October 17, 2018 Start Time: 1:50:00 PM Location: Poster Station...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997935
... noise levels and achieves reliable detection by maintaining a specified false alarm rate. Performance of the method is evaluated using synthetic and field data. Results prove the capability of the proposed scheme to perform automatic and accurate microseismic event detection in challenging noise...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2984673
...) Presentation Type: Oral seg international exposition noise level hoversten hydraulic fracturing electrode fracture standard deviation spectra fracturing materials upstream oil & gas conductivity proppant simulation operation inversion borehole em fracturing fluid conductive proppant...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17583429
... quality in cases with low interference noise level, while more elaborate efforts and time are needed to tackle noises effectively with high interference level. Presentation Date: Tuesday, September 26, 2017 Start Time: 9:20 AM Location: 371F Presentation Type: ORAL upstream oil & gas...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17634981
... frequently in the future. Presentation Date: Wednesday, September 27, 2017 Start Time: 4:45 PM Location: 371F Presentation Type: ORAL acquisition system seg seg international exposition seismic data seismic acquisition tim dean timing error upstream oil & gas noise level annual meeting...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17647742
... international exposition brewster reservoir characterization gradiometer design variance density parameter gradiometer inversion sensitivity ratio hptg noise level Beiki , M. , and L. B. Pedersen , 2011 , Pedersen, Window constrained inversion of gravity gradient tensor data...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17675182
... with a minimum number of surface-based stations suitable for the traffic light systems was determined using a sample of noise levels measured on the station. This array was operating for one and half year and it detected and located more than 400 seismic events. The catalog of observed events has a magnitude...
Proceedings Papers
Breaking through the 25/30 Hz barrier: Lowering the base frequency of the HELITEM airborne EM system
Publisher: Society of Exploration Geophysicists
Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13957502
... in ground EM surveys, noise caused by receiver motion on airborne platforms has prevented this barrier from being surpassed Here we discuss the technological innovations that led to and survey results from an AEM system capable of operating at a base frequency of 15 Hz. The noise level increase we observe...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13968682
... ABSTRACT The sea layer is an effective medium to transmit sound waves. The acoustic signal from noise sources can be detected at hydrophones from tens to hundreds of kilometers away at any depth. Noise level is not monotonically distributed in the water column. Contrary to the common belief...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13972000
... by the deviation of the first-digit frequency from Benford’s law. A high noise level can result in a large Benford deviation. This approach is first demonstrated by a simple mathematical example using a synthetic data set contaminated by Gaussian noises in different strengths. Then I apply Benford’s law to three...
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