Three-dimensional visual modelling of geological information of hydraulic engineering based on surface constraint reconstruction

2019 ◽  
Vol 11 (1) ◽  
pp. 11
Author(s):  
Wen Xiaolong ◽  
Wang Xuejuan ◽  
Wei Jing
Keyword(s):  
Three Dimensional ◽  
Hydraulic Engineering ◽  
Surface Constraint ◽  
Geological Information

scholarly journals Morpholithodynamics of lagoonal straits of the North-Eastern Sakhalin

2019 ◽  
pp. 79-94
Author(s):  
V. V. Afanasev
Keyword(s):  
Additional Data ◽  
Three Dimensional ◽  
Remote Sensing Data ◽  
Water Area ◽  
The North ◽  
North Eastern ◽  
Geological Information ◽  
History Of ◽  
Three Dimensional Models ◽  
And Migration

The results of the analysis of geospatial and geological information on the structure and dynamics of the lagoon coast of the North-Eastern Sakhalin are presented. On the basis of a number of parameters of the coastal erosion-accumulation processes and migration of lagoon straits during the period 1927–2014. the morpholithodynamics system of the North-Eastern Sakhalin was considered. The volume of sediments transported during the migration of the straits, was estimated with the help of three-dimensional models, in which, parallel with time-averaged areas of erosion and accumulation, additional data were used, namely: bathymetry of the straits and adjacent water area, characteristics of the relief of the barrier forms and geological information obtained as a result of georadar survey and drilling. Georadar data, together with remote sensing data, have made it possible to create a model of sedimentation, which formed the basis for the analysis of the history of the coast formation beyond the period of observations. Currently, we can trace the situation as long as to the middle of the XIXth century.

Three Dimensional Visualization Technologies for Water Conservancy Works

2012 ◽  
Vol 263-266 ◽  
pp. 1809-1812
Author(s):  
Nan Xie
Keyword(s):  
Field Data ◽  
3D Visualization ◽  
Three Dimensional ◽  
Interactive Visualization ◽  
Simulation System ◽  
Hydraulic Engineering ◽  
Visual Simulation ◽  
Complex Field ◽  
Water Conservancy ◽  
Visualization Techniques

The advances in the study of three dimensional (3D) interactive visualization techniques in hydraulic engineering are reviewed. Main contents, key technologies and the difficulties with their solutions in the application of 3D interactive visualization techniques to water conservancy works are analyzed and summarized. A true 3D visual simulation system prototype for large-scale water conservancy project was built. A framework for building 3D visual simulation system for complex field data in hydraulic engineering is presented to illustrate potentiality and effectiveness of 3D visualization techniques for hydraulic engineering. Aspects like navigation and presentations of complex field data with spatial dependence are presented.

scholarly journals Subsurface Geobody Imaging Using CMY Color Blending with Seismic Attributes

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Jianhua Cao ◽  
Xiankun Zhang ◽  
Yan Wang ◽  
Qi Zhao
Keyword(s):  
Three Dimensional ◽  
Seismic Attributes ◽  
Petroleum Engineering ◽  
Color Model ◽  
Color Channel ◽  
Primary Color ◽  
The Enlightenment ◽  
Geological Information ◽  
The Hilbert Transform ◽  
Color Blending

Recently, ideas of color blending have brought the enlightenment for subsurface geobody imaging in petroleum engineering. In this paper, we present this approach of CMY color blending and its application in subsurface geobody characterization by using seismic attributes data. The first step is to calculate three types of seismic attributes based on the Hilbert transform algorithm, including envelop, instantaneous phase, and instantaneous frequency. Then scale the three attributes and combine them together using CMY color model in three-dimensional environment, with each attribute corresponding to one primary color channel. Adjust the scale and offset for each color component and then mix them optimally to create one color-blended volume. The blended volume in CMY mode has plenty of geological information coming from the three input attributes, resulting in high resolution and accurate image for subsurface geobodies. Applications show good performances in buried channels, caves, and faults imaging. Based on the blended slice, the geological targets can be easily but accurately interpreted and depicted.

Application of Visualization and GIS Techniques in Water Conservancy Works

2012 ◽  
Vol 605-607 ◽  
pp. 2510-2513
Author(s):  
Nan Xie ◽  
Zhi Yang
Keyword(s):  
3D Visualization ◽  
Three Dimensional ◽  
Hydraulic Engineering ◽  
3D Gis ◽  
Modeling Framework ◽  
Gis Model ◽  
Engineering Environment ◽  
Water Conservancy ◽  
Visualization Technology ◽  
Gis Software

3D visualization has become the basic requirements of many applications of GIS. However, most of the commercialization of GIS software based on two-dimensional, to describe the true three-dimensional hydraulic engineering environment. Data integration with 3D visualization technology can be obtained through various means in order to visualize three-dimensional graphics dynamically shown to provide a convenient analytical tool to handle the vast amounts of complex engineering data, has become the GIS research cutting edge of technology and research hotspot. This paper first discusses the hydraulic engineering 3D visualization modeling framework and then study the water conservancy 3D GIS model and visualize the general principles and processes. And the general approach and application effect of 3D GIS Model have been illustrated in detailed.

3D Geological Modeling in Chang109 Block of Changchunling Oilfield

2011 ◽  
Vol 204-210 ◽  
pp. 1891-1894
Author(s):  
Jiang Tao Yu ◽  
Jun Xie ◽  
Ning Ning Meng ◽  
Peng Lin
Keyword(s):  
Three Dimensional ◽  
Sedimentary Facies ◽  
Structure Model ◽  
Geological Modeling ◽  
Reservoir Model ◽  
Well Placement ◽  
3D Geological Modeling ◽  
Reservoir Development ◽  
Development Level ◽  
Geological Information

With the improving of reservoir development level, reservoir geologic research urgently need some new and practical technical methods to describe reservoir more accurately and meticulous. The three-dimensional geological modeling exactly is one of the main aspects to resolve the problem. Take the Chang109 block of Changchunling oilfield for an example. Using Petrel, which is multi-disciplinary and synthetical software for researching reservoir and to establish a 3D geological model as the outstanding characteristic, to build the reservoir model displaying geological information system. That, including the structure model, the sedimentary facies model and the property model, will provide reliable basis potential finding and well placement.

scholarly journals Towards plausible lithological classification from geophysical inversion: honouring geological principles in subsurface imaging

Solid Earth ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 419-436 ◽  
Author(s):  
Jérémie Giraud ◽  
Mark Lindsay ◽  
Mark Jessell ◽  
Vitaliy Ogarko
Keyword(s):  
Field Data ◽  
Deep Structure ◽  
Three Dimensional ◽  
Subsurface Imaging ◽  
Geophysical Inversion ◽  
Geological Uncertainty ◽  
Self Organizing Maps ◽  
Geological Models ◽  
Geological Information ◽  
Greenstone Belts

Abstract. We propose a methodology for the recovery of lithologies from geological and geophysical modelling results and apply it to field data. Our technique relies on classification using self-organizing maps (SOMs) paired with geoscientific consistency checks and uncertainty analysis. In the procedure we develop, the SOM is trained using prior geological information in the form of geological uncertainty, the expected spatial distribution of petrophysical properties and constrained geophysical inversion results. We ensure local geological plausibility in the lithological model recovered from classification by enforcing basic topological rules through a process called “post-regularization”. This prevents the three-dimensional recovered lithological model from violating elementary geological principles while maintaining geophysical consistency. Interpretation of the resulting lithologies is complemented by the estimation of the uncertainty associated with the different nodes of the trained SOM. The application case we investigate uses data and models from the Yerrida Basin (Western Australia). Our results generally corroborate previous models of the region but they also suggest that the structural setting in some areas needs to be updated. In particular, our results suggest the thinning of one of the greenstone belts in the area may be related to a deep structure not sampled by surface geological measurements and which was absent in previous geological models.

A NEW MULTICOIL AERIAL ELECTROMAGNETIC PROSPECTING SYSTEM

Geophysics ◽  
1972 ◽  
Vol 37 (3) ◽  
pp. 518-537 ◽  
Author(s):  
D. C. Fraser
Keyword(s):  
State Of The Art ◽  
Three Dimensional ◽  
Low Frequency ◽  
Electrical Current ◽  
Massive Sulfide ◽  
Dimensional Vector ◽  
Noise Sources ◽  
Electromagnetic System ◽  
Geological Information ◽  
Transmitted Frequency

A helicopter‐towed multicoil electromagnetic system was developed using a 30‐ft bird and a transmitted frequency of 918 Hz. Its primary features of interest are (1) low aerodynamic and geological noise, (2) three‐dimensional vector recording of anomalies, and (3) quantity of geological information which is extracted by a computer‐oriented interpretive procedure. The multicoil system‐was developed to obtain more diagnostic geologic information about a conductor than was possible with other aerial electromagnetic equipment. This led to two approaches: (1) three‐dimensional recording of anomalies was developed to provide information on the electrical current distribution within the conductor and, hence, on the geometry of the conductor and (2) high‐resolution, low‐frequency design was chosen to bias the response of the system toward high‐conductivity targets to minimize interference from the usual geologic noise sources, thereby enhancing the response of discrete massive sulfide conductors. A consequence of these design criteria is a system yielding an advance in the state‐of‐the‐art of aerial electromagnetic exploration.

Hydraulic Engineering Topographic Mapping and Modeling Based on Three Dimensional Laser Scanning Technology

2015 ◽  
Vol 744-746 ◽  
pp. 1695-1700
Author(s):  
Chao Hu ◽  
Yi Hong Zhou ◽  
Chun Ju Zhao ◽  
Zhi Guo Pan
Keyword(s):  
Point Cloud ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Adaptive Mesh ◽  
Hydraulic Engineering ◽  
Topographic Mapping ◽  
Cloud Data ◽  
Post Process ◽  
High Efficient ◽  
Project Construction

Topographic mapping and modeling is one of the most basic and important work in hydraulic engineering construction. This paper present a work flow which contains data measurement, pre-process and post-process with three dimensional laser scan technology. By adopting B-tree and its expansion structure, a multi-level point cloud management and storage method has been established. Then propose a contour generation method based on scan data and the equivalent point interpolation data. A self-adaptive mesh Delaunay algorithm is introduced with point cloud data in order to generate triangular irregular network digital elevation model. Finally, the modeling accuracy and error has been analysis, the results proves this method is with high efficient and accuracy and can be provide assistance for the project construction.

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