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Keywords: noise
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Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21251-MS
... thinly layered subsurface geological features with steeply dipping beds are better defined, with artifacts from the conflicting dips removed. reservoir characterization enhancement method geophysics noise seismic resolution structural geology resolution enhancement implementation bandwidth...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 13–15, 2020
Paper Number: IPTC-19618-ABSTRACT
... geometry of the seismic data caused the aliasing of the surface wave. The application of harsh de-noising techniques in the vintage processing further deteriorated the fault definition. Thus, to tackle the aliasing problem, 5D trace densification and regularization was applied to increase the input data...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 13–15, 2020
Paper Number: IPTC-19948-Abstract
... amplitude noise exploration Holzner R. , Eschle P. , Zurcher H. , Lambert M. , Graf R. , Dangel S. , Meier P.F . 2005 . Applying nricrotremor analysis to identify hydrocarbon reservoirs. First Break Vol 23 , No 5 . May Dangel S . 2003...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2019
Paper Number: IPTC-19228-MS
... quality. Besides, some seismic data are processed more than 10 years ago, the signal to noise ratio (SNR) is relative low due to the random noise and coherent noise like acquisition footprint anomalies. The acquisition footprint artifacts caused by acquisition and processing seriously suppress the true...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2019
Paper Number: IPTC-19285-MS
... Least-squares migration (LSM) has become an increasingly important imaging tool in the seismic industry. It can successfully address imaging issues related to insufficient illumination and mitigate both migration artifacts and noise. More recently, a number of case studies from around the...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2019
Paper Number: IPTC-19569-MS
... Abstract Noise is the unwanted energy in a seismic trace opposed to the signals corresponding to reflected energy from the subsurface features. Since it can overlap with the main signals’ energy and conceal the geological information, noise attenuation is one of the most important steps in...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 14–16, 2016
Paper Number: IPTC-18933-MS
... hours, the S/N ratio of a raw shot gather from ACROSS is found to be comparable with a Vibroseis gather. Although low frequency and high amplitude noise is not negligible at near offset, the quality and repeatability of far offset data are excellent as the time shift calculated by cross correlation...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 14–16, 2016
Paper Number: IPTC-18923-MS
... Abstract This paper presents the noise and vibration methodologies applied at the FEED and EPC phases, in order to ensure that plant design meets the noise and vibration requirements of an Oil and Gas project. Working areas, but also the quiet areas such as living quarters or technical rooms...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 6–9, 2015
Paper Number: IPTC-18518-MS
..., seismic data is often sparsely and irregularly sampled, leading to several challenges in processing of OBC seismic data offshore Abu Dhabi. Conventional linear noise attenuations are not effective with Scholte waves as they are usually aliased with typical source and receiver sampling intervals in 3D OBC...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 6–9, 2015
Paper Number: IPTC-18453-MS
... of the 4D seismic compared to the previous processing between 2008 and 2011 ( Campbell et al., 2011 ): The 4D background noise is reduced, giving us a better stand-out of the 4D signal. Importantly, legacy data acquired before the advent of dedicated 4D acquisitions can also be significantly improved...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 6–9, 2015
Paper Number: IPTC-18331-MS
... provide a comprehensive dataset for flow modelling in water wet reservoirs. flow in porous media density ratio experimental condition enhanced recovery Fluid Dynamics contact angle noise saturation distribution Upstream Oil & Gas co 2 saturation map capillary pressure wettability...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 10–12, 2014
Paper Number: IPTC-18064-MS
... Dowle, 2010) this no longer has to be the case and the recorded ghosts can be addressed in acqusition based solutions to give frequency rich broadband datasets that can almost reduce the wavelet to a near spike. As a by-product streamers can be towed deeper to reduce the effects of noise from sea state...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 10–12, 2014
Paper Number: IPTC-18065-MS
... Introduction Seismic data acquisition using ocean-bottom cable (OBC) methods, whilst capturing valuable azimuthal information, often presents challenges in the signal processing sequence for successful removal of unwanted noise and multiples-related energy. Herein, we present the results of...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, December 10–12, 2014
Paper Number: IPTC-18173-MS
...-oriented production logging surveys employing a combination of Spectral Noise Logging (SNL) [1,2] and High Precision Temperature (HPT) Logging [3–5]. PLT and HPT-SNL produce similar results when wellbore and completion conditions are good but they may differ dramatically in cases of non-uniform formation...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 19–22, 2014
Paper Number: IPTC-17543-MS
... reduces the detection of noise, which overall gives a more accurate edge detection of the seismic data. Adapting Attribute Calculations to the Nature of Seismic Data Seismic data is highly varying in nature given the way it is acquired. There is more detail in the seismic image in the overburden where...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 19–22, 2014
Paper Number: IPTC-17582-MS
... processing sequence feasibility study seismic experiment noise international petroleum technology conference time-lapse seismic experiment IPTC 17582 From Feasibility to Processing: A Time-Lapse Seismic Experiment On Al Khalij Field Offshore Qatar Bruno Pagliccia, Fabrice Cantin Total E&P Qatar...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 19–22, 2014
Paper Number: IPTC-17705-MS
...-Khuff clastics. In order to identify and understand the main generators of coherent seismic noise, Qatar Shell Upstream International (QSUI) has undertaken seismic modeling using VSP data, legacy shot records and full-waveform synthetic modeling. Results of this work informed the reprocessing of...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 19–22, 2014
Paper Number: IPTC-17533-MS
... possible, and could be performed to improve image quality over the full seismic bandwidth for all reservoir intervals; Pre-Stack Depth Migration (PSDM) workflow is recommended for optimal offset and azimuth reconciliation and noise attenuation; the adverse effect of near-surface geologic variability...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 19–22, 2014
Paper Number: IPTC-17530-MS
... propagate towards the end of the fibre. As the light probe propagates down the fibre, a continuous stream of backscattered is light is generated throughout the fibre. The light probe and backscatter detection process is referred to as interrogation. production monitoring frequency noise log Leak...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 26–28, 2013
Paper Number: IPTC-16571-MS
... understanding of the induced fracture network under various stimulation designs in volumes and in patterns from each fracturing stage. hydraulic fracturing Reservoir Characterization microseismic monitoring iptc 16571 noise dataset Upstream Oil & Gas observation well shallow instrument well...

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