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Keywords: efficiency
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Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594999
..., we propose This paper focuses on the basic principle of using the an approach to parallelize the calculation in time domain for discrete convolution method to simulate arbitrary waveform an improved efficiency. Our approach, based on the theory response using the theory of survey decomposition (Yang...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584012
... suboptimally. Furthermore, the deep streamer shifts the ghost notch to lower frequencies. In this abstract, we present a strategy to combine the spherical wave decomposition and the plane wave decomposition in a single deghosting algorithm and demonstrate its efficiency using both synthetic and field data...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582711
..., automatic and accurate picking of dispersion curves can significant enhance the efficiency for surface wave prospecting. This paper presents an approach based on unsupervised learning algorithms to achieve automatic picking of surface wave dispersion curves of the fundamental mode. With this method, K-means...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582220
... As simultaneous-source (SS) has gained great attention from the seismic acquisition industry, oil companies have started to apply the triple-source technology to many exploration programs in frontier areas to improve streamer survey efficiency. However, it is non-trivial to design and execute...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582713
... Diffraction images can directly indicate fault surfaces, fracture zones and erosional surfaces, which is important for the interpretation of reservoirs. We propose a wave-equation-based method with high efficiency to image diffractors. This method has four steps. Firstly, it converts original...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3592749
... provides improved horizons and better turnaround times and enables considerable multiple model scenario testing and reconstruction within project timelines. machine learning deep learning gridded surface reservoir characterization upstream oil & gas efficiency neural network applied...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594224
... imaging of shallow exploration targets and geohazards. At the same time, the improved near offset sampling was achieved without compromising acquisition efficiency. reservoir characterization applied geoscience sub array configuration penta source source array acquisition configuration source...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594432
... of these processes provides improved results for upgoing and downgoing wavefields at accelerated timeline when compared to traditional node processing techniques. Increasing efficiency with innovative technologies in OBN signal data processing case study from the Gulf of Mexico deep-water environment Kai Zhang...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594698
... deep-water Permanent evaluated through an efficient approximation modeling, to Reservoir Monitoring (PRM) seismic system was installed devise survey procedures and design, in conjunction with (Figure 1) and contribute to build the case for industry inversion practices to minimize their interference...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3409644
... of the mainstream techniques in the industry. However, the biggest restriction factor in the technical implementation is cost increase which is brought in the high-density acquisition. Frequency separated simultaneous sweep (FSSS) is a high-efficiency vibroseis acquisition method of separating the conventional...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427899
... wave into account. The viscosity of the medium is expressed in the Gaussian beams. Meanwhile, considering the low efficiency of the frequency domain algorithm, an efficient time-domain implementation method is given: firstly, the receivers are divided by the windows, and then the reflectivity...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426096
... The driver for smaller sources in marine streamer seismic acquisition is the ability to increase the survey design options to meet the desired outcome: improved spatial resolutions, acquisition efficiency, or to allow the simultaneous acquisition of streamer and node data. In the last few years...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3422791
... situations and environments by significantly reducing the fieldwork load and reasonably planning implementation route, both reducing the construction risk and improving the survey efficiency. With the application of high precision remote sensing information, especially the DEM (digital elevation model), many...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3202558
..., and then compare this estimate with the known ideal data set. The difference is the residue that should satisfy a predefined quality criterion. This procedure is the inner loop of a genetic algorithm. A CNN (convolutional neural network) is trained to improve the efficiency of the genetic algorithm by enhancing...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214545
...-shift gathers created by RTM. In these conversions, the gather quality could be significantly affected by the sampling rate of input gathers, which is directly linked to the efficiency of migration and gather conversion. Therefore, a proper sampling scheme of input gathers can preserve high quality...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3192496
... conditions. Nevertheless, one of its main drawbacks is the excessive simulation time it incurs with increasing wave number. As a potential solution for this efficiency issue, we implement the generalized finite element method (GFEM) for the case of acoustic waves. In general, GFEM incorporates additional...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216780
... downturn investors are demanding increases in efficiency in drilling operations. One of the problems with factory drilling is that it is blind to the subsurface and new wells are efficient only when many prior wells have been drilled. In this paper I claim that geomechanics modeling and simulation...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216853
... ABSTRACT Seismic ray tracing with adaptive step size control is an efficient alternative to standard ray tracing algorithms with constant step size. We present an updated version of our algorithm incorporating the Cash-Karp method and apply it in a numerical test on an inhomogeneous...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3211181
... a challenge to traditional 2D NMR inversion algorithms. Based on this, a new fast 2D NMR inversion method based on random singular value decomposition (RSVD) is proposed. The author first compares the computational efficiency and memory occupancy of RSVD and traditional SVD, and takes the oilwater and gas...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214894
... inversion result efficiency reservoir characterization inversion interface depth domain zoeppritz equation elastic parameter upstream oil & gas Aki , K. , and P. G. Richards , 1980 , Quantitative seismology: Theory and methods : W. H. Freeman . Fang , Y. , F...

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