01. July 2019 - 9:00
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Reservoir Simulation in Practice - Advanced: London | 1 Shortlands | Monday, 01. July 2019

Course overview The course provides an in-depth understanding of the role that reservoir simulation plays in exploration and production companies. The course is hands on, looking at real case studies and focusses on practical problems and how to solve them. Simulation for pre-development and ****** fields is discussed, providing an integrated view of modelling sub-surface, facilities and commercial operations. A refresher session on multi-phase flow in the reservoir and production facilities is followed by the numerical treatment of the equations of flow, and how these equations are solved using modern computer hardware. The reservoir simulation workflow is presented, from geological modelling, fluid property characterisation and handling of well completion and production data. The modelling of geological structures including pinch-outs and complex faulting is discussed, together with techniques for interpolating poro-perm distributions and upscaling from geocellular-geostatistical models. Data preparation of fluid and rock properties and initialisation of the model is illustrated by field examples, together with preparation of well production data. These concepts – geology, rock and fluid properties, well data – are illustrated using hands-on models including a gas-condensate reservoir, oil reservoir under water-flood, and a three-phase reservoir with aquifer influx. Uncertainty analysis is introduced by identifying the major uncertainties that impact production forecasts, together with how this analysis is extended to history-matching and planning robust field developments. The course participants will be able to run the case studies using RFD’s tNavigator suite and investigate the impact of model assumptions on field development and economic planning.
The course is designed for Engineers with a good understanding of reservoir engineering principles and a basic knowledge of reservoir simulation. Also, for practising geoscientists who need to work with and supply data to reservoir simulation engineers.
Course objectives Learn the role reservoir simulation plays in the modern oil and gas company. Discuss the different types of model from pre-development and ****** field to integrated asset management. Understand reservoir simulation workflows including building simulation models from mapped data to upscaling geocellular models. Learn the data requirements of reservoir simulation and how to prepare and QC data from different sources. See these concepts integrated in field-scale case studies including a gas condensate, oil water-flood, and three-phase reservoir with aquifer influx. Understand the concept of uncertainty analysis and how to identify the important parameters for sensitivity analysis. Use modern methods including experimental design and stochastic optimisation to carry out history-matching.
Course outline
Day 1 MorningThe role of reservoir simulation in the corporation

Pre-development, green-field
******, brown-field
Integrated production modelling

Review of simulation fundamentals

Multi-phase flow in porous media
Flow in pipelines and tubing
Numerical methods

Computing systems

Desktop
Parallel Clusters
GPUs

Day 1 AfternoonThe reservoir simulation workflow

Geological modelling
Reservoir structure
Rock properties
Fluid properties (PVT, Rel Perm, Cap Pressure)
Fluid contacts
Model initialisation
Well completions
Production data

Model QCRunning the modelAnalysing ResultsDay 2 Morning
Reservoir Simulation Approaches

Top-down versus Bottom-up

Simulation Data Requirements

Static volumetrics
Dynamic single-phase flow
Dynamic multi-phase flow

Modelling Reservoir Structure

Depth and structure maps
Vertical and complex faulting
Stratigraphy
Erosional and truncation surfaces
Pinch-outs

Day 2 Afternoon
Modelling Depositional Environments

Simple interpolation
Advanced Kriging
Facies and rock types
Geostatistics
Geocellular models

Upscaling

Porosity and permeability
Saturation end-points
Fault juxtaposition and cross-flow

Day 3 Morning
Preparation of Rock and Fluid Properties

SCAL
Rel permeability
Cap pressure
End-point correlations
Normalisation
PVT analysis
Rock and water properties

Preparation of Production Data

Well completions
Horizontal wells
Multi-laterals
Multiple hydraulic fractures
Smart wells
Artificial lift
Production constraints

Day 3 Afternoon 
Introduction to Field-Scale Models

Gas condensate reservoir – depletion drive
Oil reservoir – water-flood
Oil column with gas cap – aquifer influx

Day 4 Morning
Parameters for Sensitivity Analysis

Structural modelling
Seismic picks
Seismic Velocities
Well trajectories
Rock property distributions
Facies models
Geostatistical realisations
Fault transmissibility modifiers
Permeability-porosity modifiers
Rock and fluid property uncertainty
Fluid contact uncertainty
Production operations

Day 4 Afternoon Production Forecasting under Uncertainty

Probability distributions
SPE PRMS reporting requirements

Hands-on Examples

Gas condensate reservoir
Water-flood reservoir
Oil and gas-cap reservoir with aquifer influx

Day 5 Morning
History Matching

Objectives

Techniques

Experimental design
Latin hypercube sampling
Direct search methods
Response surface (proxy methods)
Ensemble Kalman filter

History-Match Workflow

Parameter identification
Parameter ranges
Global versus local parameters
Consistency checks Data analysis and review

Day 5 Afternoon History Match Hands-on Example

- ADNOC model reservoir

tNavigator Q&ACourse Review
 Course terms and conditions