Table 8. Summary of commonly used seismic data processing and interpretation software
sequential
(1) Discovery
Discovery is the world's first integrated application platform for seismic interpretation, logging interpretation, geological research and exploration and development based on Windows platform. It is a product of GeoGraphics's company and belongs to halliburton Company. SeisVision, a seismic interpretation module, is a powerful 2D/ 3D seismic interpretation system with the following functions and features:
① Support 2D and 3D seismic interpretation, splicing and joint interpretation of multiple 3D work areas, and splicing and joint interpretation of 2D and 3D work areas. ② In SynView module, the reflection coefficient and velocity model are automatically calculated by using the acoustic curve and density curve of logging, and are convolved with standard theoretical wavelet or wavelet extracted by users to make synthetic records. (The 3DViewer function can display interpreted horizons, faults, seismic sections, time slices, borehole trajectories and various seismic attributes in the 3D visualization window, which can be used for fine structural interpretation and reservoir distribution research in the 3D visualization environment.
(2)PetrelTM
PetrelTM is a product of Schlumberger company, which integrates seismic data interpretation, logging analysis, geological comprehensive research, geological modeling and numerical simulation, and is suitable for various reservoir types. Its seismic visualization interpretation system can perform seismic data profile interpretation and three-dimensional interpretation, entity modeling, seismic data post-stack processing and attribute extraction, velocity analysis and time-depth conversion, structural analysis and automatic fault extraction, reservoir attribute plane mapping and so on. There are six functional modules: ① comprehensive interpretation of 2D and 3D seismic data; ② Post-stack processing of ②Pe-trelTM seismic data; ③ Genetic inversion; ④ Perspective and extraction of seismic attribute body; ⑤ Velocity modeling; ⑥ Domain change.
(3) Double Fox Software
Double Fox software is a comprehensive software for geological research and reservoir management, which provides a unified platform for reservoir description and management and integrates seismic interpretation, geological analysis and comprehensive reservoir description. In addition to all the conventional interpretation functions of workstation interpretation software, the double fox microcomputer interpretation system also includes some attribute extraction methods, such as three instants, relative wave impedance, absolute wave impedance, isochronous slicing, slicing along layers (amplitude along layers) and so on. Combined with the inverse fault contour drawing module, the inverse fault is interpreted and mapped once. Realize the real-time conversion between time domain and depth domain, insert the logging histogram of the well, directly calibrate the profile through well stratification, and study the structural interpretation, reservoir description and structural development history in the depth domain. The combined application of interpretation system and variable speed mapping greatly improves the work efficiency and research accuracy.
(4) "Islamic State"
The "Islamic State" seismic inversion software is the research result of degaardA/S Company in Denmark for more than ten years, and it is used to provide professional technical services for major oil companies in the world. Islamic State seismic inversion technology is a global optimization multi-channel inversion system using fast simulated annealing algorithm, which has the characteristics of strong anti-noise ability, high resolution and true seismic data. It is helpful to solve the problems of structural reservoir, lithologic reservoir and fault identification in the development and exploration stage, especially in the case of less wells. In addition, because the Islamic State has the characteristics of large window and large amount of data when processing seismic data, it has achieved good results in the study of banded reservoirs and sedimentary facies. Using AVO intercept and P-wave impedance profile inversed from gradient profile, we can calculate vP/vS, Poisson's ratio, fluid factors and lithologic changes, percentage and porosity of sandstone and mudstone, and directly detect oil and gas. Because it starts from pre-stack, the accuracy is very high.
(5) Landmarks
LandMark seismic comprehensive interpretation software package is a large-scale seismic comprehensive interpretation software, including seismic data interpretation, 3D automatic horizon tracking, synthetic seismic record making, 3D visual interpretation, geological interpretation and stratigraphic correlation, post-stack processing, data volume coherence analysis, seismic attribute extraction analysis, address modeling, fault sealing analysis and mapping, plane and fault models, production calculation, logging interpretation, fine target analysis, well location design, etc.
(6)GeoEast
GeoEast seismic data processing and interpretation integrated system is developed by China Petroleum Group Oriental Geophysical Exploration Co., Ltd., with unified overall control, unified interface style and unified data interface. The system supports network distributed computing and parallel processing (PC-cluster), integrates interaction and batch processing, and realizes the iteration of processing and interpreting structural morphology, the iteration of processing and interpreting velocity model, and the extraction of seismic attributes under the constraint of structural morphology. The system emphasizes seismic geological modeling, prestack migration and three-dimensional visual interpretation, and can be used for high-resolution processing, complex surface and data processing in low signal-to-noise ratio areas.