... cases, entire sections are devoid of usable seismic reflections. The complex near-surface conditions caused significantly both long-wavelength and short-wavelength static correction challenges and the absorption effects of inconsistent wavelet behavior, while the extremely low signal-to-noise ratio...

... structures, frequently hinder this process. Such noise emerging from equipment limitations, environmental interference, and inherent geological complexities can obscure essential geological features, making accurate subsurface imaging challenging and reducing the effectiveness of traditional interpretation...

... reservoir characteristics, optimizing exploration and development strategies, and enhancing resource utilization efficiency in the oil and gas industry. digital core geologist neural network geology artificial intelligence flow in porous media core sample reconstruction noise pore structure...

... wave, can be maximized, while the regular sampling data shows spatial aliasing in the high frequency band due to insufficient sampling. Therefore, the MrSET sampling and the conventional regular sampling are similar basically in FK spectrum below 34 Hz and the false frequency noise in the FK spectrum...

... denoising, a critical process involving the removal of unwanted noise from seismic data. This paper is structured into distinct stages as outlined in the steps below: Data Preparation Seismic data is organized in the form of a 3D cube, where each slice along various dimensions conveys crucial...

...Neural Network Design Grid Generation (History Matching) To reconcile the grid properties with a certain production profile, noise is added to allow the model to converge to a new grid. The modification tolerance level refers to the amount of noise that is added and represents an indication...

... diverse datasets, operating independently of well data. It effectively addresses noise reduction, distinguishing geological features from disturbances and by improving the signal-to-noise ratio, and implements enhancements to the frequency spectrum through a nonlinear approach. The research endeavors...

... approach was taken in spectral noise logging technology. The challenge however remains for slow building leaks for which higher sensitivity sensors are required. Recently, an innovative Tri-Axial Geophones (TAG) based logging technology was introduced and mobilized across several fields to detect sources(s...

... indicates the loudest signals, yellow, green and blue indicate lower volume noises in decreasing order. White color indicates noise below the sensitivity threshold of the device. Figure 4 Combined tool string. Figure 6 SNL-HPT tool string schematic. Figure 5 Multi-lateral Tool...

.... The legacy data processing was limited to the application of dip-filter-based noise attenuation, pre-stack time imaging and post-stack survey merging, which leads to unresolved geophysical challenges associated with each process. In this study, a cascaded application of surface-wave and coherent noise...

... Abstract Distributed Acoustic Sensing (DAS) and Distributed Temperature Sensing (DTS) measurements are technologies which are adding some benefits in the aim to replace or complete traditional logging measurements like noise logging tools (NLT) or production logging tools (PLT). The aim of well...

... geophysics implementation layer velocity algorithm noise bandwidth operator international petroleum technology conference seismic resolution ensdr target-oriented dip-steered seismic resolution seismic volume Introduction Seismic resolution is one of the most important subjects...

... 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...

...! Reservoir Characterization Artificial Intelligence Upstream Oil & Gas thin layer attenuation Thickness low frequency seismic exploration reflection frequency range lf signal amplitude absorption sensor green function noise hydrocarbon seismic survey international petroleum technology...

... 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...

... 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...

... 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...

... 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...

... 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...

... distribution noise saturation capillarity wettability capillary pressure international petroleum technology conference Reservoir Conditions interfacial tension References References Espinoza , D. , and J. Santamarina . " Water-CO 2 -Mineral Systems: Interfacial Tension, Contact Angle...