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Gautier Laurent - Implicit Modelling and volume deformation
This presentation was delivered at the June 10 (2014) 3D Interest Group Meeting at the Centre for Exploration Targeting, UWA.
Hedrick_Poster
This document summarizes a research project that digitized and modeled historic mine plans and data from the Camp Bird Mine in Colorado in order to create a 3D model. The goals were to preserve historical mining documents, make the data more accessible, and allow for analysis to support potential reopening and development of the mine. Over 2,000 historic maps were compiled and processed using GIS and Vulcan software. The resulting 3D model integrated data from multiple levels and can be used to better understand the mine's geology, workings, and impacts. This addressed the lack of existing digital compilations and issues with studying the extensive paper records.
TallGeologic
The document contains geological data including elevation measurements in meters for various geographical locations in different districts of Venezuela. It also lists stratigraphic units with their corresponding geologic formation names and age ranging from Eocene to Oligocene epoch.
Geological simulation using implicit approach
This document proposes a new approach called implicit boundary simulation (IBS) for stochastic geological modelling that combines implicit and stochastic modelling. IBS simulates the distance function to geological boundaries using geostatistical algorithms rather than interpolating distances. The approach is applied to a deposit, showing IBS better reproduces indicator variograms and interval lengths compared to sequential indicator simulation. IBS provides distances to boundaries, conveying information about mineral zone configuration unlike other methods.
3D Modelling Summary Projects
Recapitulation of some projects focused in 3D geological modelling.
- Surface based projects
- Seismic based projects
- Fault analysis based projects
- Facies modelling facies projects
- Well management based projects
2016 Gold Kng Poster NMT April
This document summarizes a study conducted by undergraduate geology students at Fort Lewis College analyzing water quality data from the Gold King Mine spill. The students:
1) Compared water quality data from EPA samples to their own samples collected along the Animas River after the spill.
2) Created a 3D model of the Gold King Mine underground workings to investigate possible connections explaining high discharge volumes.
3) Presented their comparative analysis and findings to the public to provide a more complete understanding of the mine and varying metal concentrations in streams.
Las mingachas workflow
1. A digital elevation model was created for the Las Mingachas outcrop area using aerial imagery and stratigraphic well data. Major flooding surfaces and sequential surfaces were reconstructed from digitized geological traces and well data.
2. A 3D volume model was constructed between the reconstructed sequential surfaces using gridded cells oriented in the paleoflow direction. Facies models were defined for each sequence set based on outcrop and well data.
Las_Mingachas_Workflow
1. A digital elevation model was created for the Las Mingachas outcrop area using aerial imagery and stratigraphic well data. Major surfaces like maximum flooding surfaces were reconstructed from digitized geological traces and well tops.
2. The volume between the reconstructed sequential surfaces was modeled using 3D cells oriented in the paleoflow direction, with layering dependent on the sequence set.
3. Facies models were developed for each sequence set by analyzing stratigraphic well and outcrop data to define the distribution and nature of facies within the bounding surfaces.
Recommended
Gautier Laurent - Implicit Modelling and volume deformation
This presentation was delivered at the June 10 (2014) 3D Interest Group Meeting at the Centre for Exploration Targeting, UWA.
Hedrick_Poster
This document summarizes a research project that digitized and modeled historic mine plans and data from the Camp Bird Mine in Colorado in order to create a 3D model. The goals were to preserve historical mining documents, make the data more accessible, and allow for analysis to support potential reopening and development of the mine. Over 2,000 historic maps were compiled and processed using GIS and Vulcan software. The resulting 3D model integrated data from multiple levels and can be used to better understand the mine's geology, workings, and impacts. This addressed the lack of existing digital compilations and issues with studying the extensive paper records.
TallGeologic
The document contains geological data including elevation measurements in meters for various geographical locations in different districts of Venezuela. It also lists stratigraphic units with their corresponding geologic formation names and age ranging from Eocene to Oligocene epoch.
Geological simulation using implicit approach
This document proposes a new approach called implicit boundary simulation (IBS) for stochastic geological modelling that combines implicit and stochastic modelling. IBS simulates the distance function to geological boundaries using geostatistical algorithms rather than interpolating distances. The approach is applied to a deposit, showing IBS better reproduces indicator variograms and interval lengths compared to sequential indicator simulation. IBS provides distances to boundaries, conveying information about mineral zone configuration unlike other methods.
3D Modelling Summary Projects
Recapitulation of some projects focused in 3D geological modelling.
- Surface based projects
- Seismic based projects
- Fault analysis based projects
- Facies modelling facies projects
- Well management based projects
2016 Gold Kng Poster NMT April
This document summarizes a study conducted by undergraduate geology students at Fort Lewis College analyzing water quality data from the Gold King Mine spill. The students:
1) Compared water quality data from EPA samples to their own samples collected along the Animas River after the spill.
2) Created a 3D model of the Gold King Mine underground workings to investigate possible connections explaining high discharge volumes.
3) Presented their comparative analysis and findings to the public to provide a more complete understanding of the mine and varying metal concentrations in streams.
Las mingachas workflow
1. A digital elevation model was created for the Las Mingachas outcrop area using aerial imagery and stratigraphic well data. Major flooding surfaces and sequential surfaces were reconstructed from digitized geological traces and well data.
2. A 3D volume model was constructed between the reconstructed sequential surfaces using gridded cells oriented in the paleoflow direction. Facies models were defined for each sequence set based on outcrop and well data.
Las_Mingachas_Workflow
1. A digital elevation model was created for the Las Mingachas outcrop area using aerial imagery and stratigraphic well data. Major surfaces like maximum flooding surfaces were reconstructed from digitized geological traces and well tops.
2. The volume between the reconstructed sequential surfaces was modeled using 3D cells oriented in the paleoflow direction, with layering dependent on the sequence set.
3. Facies models were developed for each sequence set by analyzing stratigraphic well and outcrop data to define the distribution and nature of facies within the bounding surfaces.
Part 1 of 4 Leapfrog Introductory
This document introduces the Leapfrog mining software. It summarizes that Leapfrog allows for fast, flexible, and dynamic 3D geological modeling. It works through an implicit 3D engine that interpolates data points to build a 3D model much faster than alternative methods. Leapfrog encourages exploring multiple interpretations simultaneously and refining models directly. Its powerful 3D visualization enables compelling presentation and improved interpretation of geological models.
Manual basico de vulcan
El documento presenta una introducción al software Vulcan 3D, describiendo su barra de explorador, carpetas principales como "Design Database" y "Triangulation", y herramientas básicas como cargar y remover capas y triangulaciones. También explica la pantalla de dibujo, ventanas de estado y barras de herramientas, con énfasis en comandos comunes como listar capas, deshacer/rehacer, y crear y eliminar vistas de sección. Finalmente, resume las principales herramientas de dibujo y edición como capa
GMEX Introduction
Dr. John McLellan established GMEX in 2012 to provide geomechanical modelling services to the mining industry. GMEX uses finite element and discrete element modelling techniques to better understand geological deformation events and fluid flow patterns to enable predictive mineral exploration targeting. These modelling techniques simulate crustal deformation and analyze resulting stress, strain, and fluid flow patterns to identify favorable areas for structurally-controlled mineral deposits. GMEX has successfully applied these methods in validation case studies to define new exploration targets at mines like Sunrise Dam and prioritize regional targets in areas like the Eastern Fold Belt in Mount Isa.
Modern mining
The document discusses the history and modern practices of mining. It covers the earliest records of mining from 3000 BC by Egyptians extracting gold, silver and copper. Modern mining involves prospecting, feasibility studies, extracting desired materials using surface or underground techniques, and reclaiming land after closure. Key aspects covered include exploration methods, resource and reserve estimation, adhering to mining codes, and establishing feasibility studies to evaluate project risk and define scale prior to development and operation.
Modelling – at the heart of teaching
This document discusses the importance of modelling as a way to make implicit thinking explicit for students. It suggests 5 questions to consider when modelling, including how to create conditions for deep thinking. Different types of modelling are presented, such as student-generated, teacher-modelling, and differentiated modelling. Live modelling is described as the "Rolls Royce" approach, showing students how to complete a task excellently. The key message is that modelling clarity, avoiding assumptions, and demonstrating mastery of a skill can help students learn.
Weighting of precipitation recharge
Weighting of precipitation recharge from terrain slope and geology using Digital Elevation Models and by raster operations
Modelling of 3D gelogical structures
The document discusses 3D geological modeling, including defining the process as developing a mathematical representation of subsurface structures using data from boreholes, seismic surveys, and maps. It outlines the basic steps of 3D modeling as including data georeferencing, picking structural features, creating a fault network, and horizon modeling on a block-by-block basis. A case study of 3D modeling of the Brady's geothermal system in Nevada is also presented.
Semester Project in Reservoir Simulation
The document describes a reservoir simulation project involving history matching of an oil reservoir with multiple producers and injectors. 10 different simulation trials were run to match historical production data from 4 key wells by adjusting transmissibility multipliers in different regions of the reservoir model. The best results were achieved in trial 6, where transmissibility was increased in two areas and changed near the main injectors, successfully matching the production of the most important well while having limited effect on other wells. However, fully history matching all 4 wells proved challenging.
3D Facies Modeling
3D Facies Modelling project using Petrel software. Msc Geology and Geophysics
Abstract
The Montserrat and Sant Llorenç del Munt fan-delta complexes were developed during the Eocene in the Ebro basin. The depositional stratigraphic record of these fan deltas has been described as a made up by a several transgressive and regressive composite sequences each made up by several fundamental sequences. Each sequence set is in turn composed by five main facies belts: proximal alluvial fan, distal alluvial fan, delta front, carbonates platforms and prodelta.
Using outcrop data from three composite sequences (Sant Vicenç, Vilomara and Manresa), a 3D facies model was built. The key sequential traces of the studied area georeferenced and digitalized on to photorealistic terrain models, were the hard data used as input to reconstruct the main surfaces, which are separating transgressive and regressive stacking patterns. Regarding the facies modelling has been achieved using a geostatistical algorithm in order to define the stacking trend and the interfingerings of adjacent facies belts, and five paleogeographyc maps to reproduce the paleogeometry of the facies belts within each system tract.
The final model has been checked, using a real cross section, and analysed in order to obtain information about the Delta Front facies which are the ones susceptible to be analogous of a reservoir. Attending to the results including eight probability maps of occurrence, the transgressive sequence set of Vilomara is the greatest accumulation of these facies explained by its agradational component.
25158 m. diviu
This letter recognizes Mr. M. Diviu for presenting the abstract "3D Facies Model in Large-scale Fan Delta Complexes (Montserrat and Sant Llorenç del Munt, Eocene, Ebro Basin, NE Spain)" at the 77th EAGE Conference & Exhibition 2015 with the theme "Earth Science for Energy and Environment" held from June 1-4, 2015 in Madrid, Spain. The letter is signed by Walter Rietveld, the Technical Program Officer of EAGE.
Seq history
Sequential Stratigraphic history of the la "Sagrera High Velocity Train Station" developed for the project.
Petrel course Module_1: Import data and management, make simple surfaces
This document outlines an introduction course to Petrel software. It covers 5 modules: 1) Loading and editing data, 2) Digital mapping, 3) Surface reconstruction and editing, 4) Fault modeling, and 5) Facies modeling. The course will teach important Petrel functions like surface reconstruction, property modeling between horizons, and making grids and horizons. It provides examples of specific tasks like importing elevation data, draping maps, digitizing polygons for mapping, and modeling zones between reconstructed surfaces.
M.Diviu
The document describes a 3D facies model of two fan-delta complexes in Spain based on outcrop data. The model covers an area of 375 km2 and stratigraphic thickness of 325 meters, capturing heterogeneity from two scales of cyclicity. Facies belts were modeled using geostatistics calibrated with paleogeographic maps. The model reproduces the complex geometry of the delta front facies and potential stratigraphic traps related to facies changes. The exploration-scale model correlates well with outcrop cross-sections, demonstrating the modeling strategy could be applicable to subsurface reservoirs.
Petrel introduction course guide
Introduction Petrel Course (UAB-2014)
This course has been prepared as an introduction of Petrel software (Schlumberger, www.software.slb.com/products/platform/Pages/petrel.aspx), an application which allows the modeling and visualization of reservoirs, since the exploration stage until production, integrating geological and geophysical data, geological modeling (structural and stratigraphic frameworks), well planning, or property modeling ( petrophysical or petrological) among other possibilities.
The course will be focused mainly in the understanding and utilization of workflows aimed to build geological models based on superficial data (at the outcrop scale) but also with seismic data. The course contents have been subdivided in 5 modules each one developed through the combination of short explanations and practical exercises.
The duration of the course covers more or less 10h divided in three sessions. The starting data will be in the first week of December.
This course will be oriented mainly for the PhD and master students ascribed at the Geologic department of the UAB. For logistic reasons the maximum number of places for each torn are 9. The course is free from the Department members but the external interested will have to make a symbolic payment.
Those interested send an e-mail to the Doctor Griera (albert.griera@uab.cat).
The course will be imparted by Marc Diviu (Msc. Geology and Geophysics of reservoirs).
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Part 1 of 4 Leapfrog Introductory
This document introduces the Leapfrog mining software. It summarizes that Leapfrog allows for fast, flexible, and dynamic 3D geological modeling. It works through an implicit 3D engine that interpolates data points to build a 3D model much faster than alternative methods. Leapfrog encourages exploring multiple interpretations simultaneously and refining models directly. Its powerful 3D visualization enables compelling presentation and improved interpretation of geological models.
Manual basico de vulcan
El documento presenta una introducción al software Vulcan 3D, describiendo su barra de explorador, carpetas principales como "Design Database" y "Triangulation", y herramientas básicas como cargar y remover capas y triangulaciones. También explica la pantalla de dibujo, ventanas de estado y barras de herramientas, con énfasis en comandos comunes como listar capas, deshacer/rehacer, y crear y eliminar vistas de sección. Finalmente, resume las principales herramientas de dibujo y edición como capa
GMEX Introduction
Dr. John McLellan established GMEX in 2012 to provide geomechanical modelling services to the mining industry. GMEX uses finite element and discrete element modelling techniques to better understand geological deformation events and fluid flow patterns to enable predictive mineral exploration targeting. These modelling techniques simulate crustal deformation and analyze resulting stress, strain, and fluid flow patterns to identify favorable areas for structurally-controlled mineral deposits. GMEX has successfully applied these methods in validation case studies to define new exploration targets at mines like Sunrise Dam and prioritize regional targets in areas like the Eastern Fold Belt in Mount Isa.
Modern mining
The document discusses the history and modern practices of mining. It covers the earliest records of mining from 3000 BC by Egyptians extracting gold, silver and copper. Modern mining involves prospecting, feasibility studies, extracting desired materials using surface or underground techniques, and reclaiming land after closure. Key aspects covered include exploration methods, resource and reserve estimation, adhering to mining codes, and establishing feasibility studies to evaluate project risk and define scale prior to development and operation.
Modelling – at the heart of teaching
This document discusses the importance of modelling as a way to make implicit thinking explicit for students. It suggests 5 questions to consider when modelling, including how to create conditions for deep thinking. Different types of modelling are presented, such as student-generated, teacher-modelling, and differentiated modelling. Live modelling is described as the "Rolls Royce" approach, showing students how to complete a task excellently. The key message is that modelling clarity, avoiding assumptions, and demonstrating mastery of a skill can help students learn.
Weighting of precipitation recharge
Weighting of precipitation recharge from terrain slope and geology using Digital Elevation Models and by raster operations
Modelling of 3D gelogical structures
The document discusses 3D geological modeling, including defining the process as developing a mathematical representation of subsurface structures using data from boreholes, seismic surveys, and maps. It outlines the basic steps of 3D modeling as including data georeferencing, picking structural features, creating a fault network, and horizon modeling on a block-by-block basis. A case study of 3D modeling of the Brady's geothermal system in Nevada is also presented.
Semester Project in Reservoir Simulation
The document describes a reservoir simulation project involving history matching of an oil reservoir with multiple producers and injectors. 10 different simulation trials were run to match historical production data from 4 key wells by adjusting transmissibility multipliers in different regions of the reservoir model. The best results were achieved in trial 6, where transmissibility was increased in two areas and changed near the main injectors, successfully matching the production of the most important well while having limited effect on other wells. However, fully history matching all 4 wells proved challenging.
3D Facies Modeling
3D Facies Modelling project using Petrel software. Msc Geology and Geophysics
Abstract
The Montserrat and Sant Llorenç del Munt fan-delta complexes were developed during the Eocene in the Ebro basin. The depositional stratigraphic record of these fan deltas has been described as a made up by a several transgressive and regressive composite sequences each made up by several fundamental sequences. Each sequence set is in turn composed by five main facies belts: proximal alluvial fan, distal alluvial fan, delta front, carbonates platforms and prodelta.
Using outcrop data from three composite sequences (Sant Vicenç, Vilomara and Manresa), a 3D facies model was built. The key sequential traces of the studied area georeferenced and digitalized on to photorealistic terrain models, were the hard data used as input to reconstruct the main surfaces, which are separating transgressive and regressive stacking patterns. Regarding the facies modelling has been achieved using a geostatistical algorithm in order to define the stacking trend and the interfingerings of adjacent facies belts, and five paleogeographyc maps to reproduce the paleogeometry of the facies belts within each system tract.
The final model has been checked, using a real cross section, and analysed in order to obtain information about the Delta Front facies which are the ones susceptible to be analogous of a reservoir. Attending to the results including eight probability maps of occurrence, the transgressive sequence set of Vilomara is the greatest accumulation of these facies explained by its agradational component.
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More from Marc Diviu Franco
25158 m. diviu
This letter recognizes Mr. M. Diviu for presenting the abstract "3D Facies Model in Large-scale Fan Delta Complexes (Montserrat and Sant Llorenç del Munt, Eocene, Ebro Basin, NE Spain)" at the 77th EAGE Conference & Exhibition 2015 with the theme "Earth Science for Energy and Environment" held from June 1-4, 2015 in Madrid, Spain. The letter is signed by Walter Rietveld, the Technical Program Officer of EAGE.
Seq history
Sequential Stratigraphic history of the la "Sagrera High Velocity Train Station" developed for the project.
Petrel course Module_1: Import data and management, make simple surfaces
This document outlines an introduction course to Petrel software. It covers 5 modules: 1) Loading and editing data, 2) Digital mapping, 3) Surface reconstruction and editing, 4) Fault modeling, and 5) Facies modeling. The course will teach important Petrel functions like surface reconstruction, property modeling between horizons, and making grids and horizons. It provides examples of specific tasks like importing elevation data, draping maps, digitizing polygons for mapping, and modeling zones between reconstructed surfaces.
M.Diviu
The document describes a 3D facies model of two fan-delta complexes in Spain based on outcrop data. The model covers an area of 375 km2 and stratigraphic thickness of 325 meters, capturing heterogeneity from two scales of cyclicity. Facies belts were modeled using geostatistics calibrated with paleogeographic maps. The model reproduces the complex geometry of the delta front facies and potential stratigraphic traps related to facies changes. The exploration-scale model correlates well with outcrop cross-sections, demonstrating the modeling strategy could be applicable to subsurface reservoirs.
Petrel introduction course guide
Introduction Petrel Course (UAB-2014)
This course has been prepared as an introduction of Petrel software (Schlumberger, www.software.slb.com/products/platform/Pages/petrel.aspx), an application which allows the modeling and visualization of reservoirs, since the exploration stage until production, integrating geological and geophysical data, geological modeling (structural and stratigraphic frameworks), well planning, or property modeling ( petrophysical or petrological) among other possibilities.
The course will be focused mainly in the understanding and utilization of workflows aimed to build geological models based on superficial data (at the outcrop scale) but also with seismic data. The course contents have been subdivided in 5 modules each one developed through the combination of short explanations and practical exercises.
The duration of the course covers more or less 10h divided in three sessions. The starting data will be in the first week of December.
This course will be oriented mainly for the PhD and master students ascribed at the Geologic department of the UAB. For logistic reasons the maximum number of places for each torn are 9. The course is free from the Department members but the external interested will have to make a symbolic payment.
Those interested send an e-mail to the Doctor Griera (albert.griera@uab.cat).
The course will be imparted by Marc Diviu (Msc. Geology and Geophysics of reservoirs).
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Petrel course Module_1: Import data and management, make simple surfaces
Petrel course Module_1: Import data and management, make simple surfaces