The Dynamic Multiphase Flow Simulator
O LG A 7 - be c au se t i me mat t e r s
New features include: • Easy to use interface and workflows • OLGA High Definition model for stratified flow • Open framework for efficient integration • Risk management and optimisation tool
be dynamic ®
Cooperating with all major oil and engineering companies we continuously develop OLGA to solve onshore and offshore flow assurance challenges.
SPT Group and OLGA - because experience matters We believe in depth over breadth. We focus our solutions in two critical areas for the upstream oil and gas industry; flow assurance and reservoir engineering. We aim to be the obvious choice for customers in these areas.
SPT Group is the leader in modelling for the oil and gas industry. Our highly skilled professionals worldwide deliver advanced software and consulting services to help our customers solve multiphase flow challenges.
Our dynamic multiphase simulation software, OLGA, is the most trusted flow simulation software. We continuously develop applications to solve the world’s most complicated flow assurance challenges.
Dynamics - because time matters Dynamics give the full picture Dynamics describes how a system evolves over time. Steady-state represents a more general situation where a system’s observed condition is assumed to continue into the future – equilibrium. Typically, a system achieves a steady-state after some time has elapsed, the system’s condition in this time frame is said to be dynamic. Any changes to the system over time will therefore bring a system out of the steady-state and into a dynamic [or transient] state. Time affects motion, studying forces and how things move prepares us for the future.
Dynamics adds significant value The oil and gas industry uses steady-state calculations and modelling for many of the flow assurance challenges. These models are very useful, yet they do not account for phenomena caused by dynamics. Some of these include changes in flow rates, changes in flow compositions, temperature variations, corrosion and deposition of solids. Furthermore, these changes are more prevalent where the production contains more than one phase – e.g. oil, water and gas. Hence, dynamic modelling is a crucial tool for gaining the necessary knowledge and confidence for optimal production. OLGA brings the added dimension of dynamic modelling and is suited to make steady-state calculations.
Dynamics with high confidence Through years of innovation, testing and verification, OLGA has become the de-facto market standard for modelling flow dynamics. We focus our efforts to ensure that OLGA evolves with market needs and covers the critical challenges met in real life. OLGA is not just a software, it is approaching a discipline in itself and our emphasis is equally divided between the importance of modelling true dynamics and lowering the threshold for use and comprehension through user interfaces and training.
p p2 2
OLGA 7 Dynamic simulation, one step further
Local presence - because you matter We support our customers from fourteen global locations. Working with more than 500 energy companies world-wide, all our locations offer a high level of support, training, service and sales to secure an ongoing relationship with our customers and partners. We complement our network with selected agents and partners. We don’t just deliver software. Our team of highly competent and objective consultants are experts in using our tools to help our customers address their most difficult challenges. Our consultants have delivered industry-changing innovation by working on real-world problems for our customers.
Research and Development - because accuracy matters We invest heavily in R&D - higher than most comparable firms. We are driven by our values to deliver the most capable, innovative and bold solutions to our customers. Our life-cycle solutions are built on advanced scientific and mathematical research. Customer supported innovation and research has been at our core for more than 30 years. SPT Group has, over this long period, successfully transformed R&D into software solutions and consulting services that deliver trusted insight and real impact. OLGA Verification and Improvement Program (OVIP) Major oil and engineering companies participate in the OLGA Verification and Improvement Project (OVIP). The program is now in its seventh 3-year cycle and has collected the world’s largest database of lab and field data. This data has been used to validate and adapt the multiphase flow models. Results are continuously implemented in OLGA improving the core technology to even better match the realities of operations.
HORIZON Co-sponsored by seven major oil companies, the project addresses problems related to the costeffective development and safe operation of long distance gas-condensate transport and long distance transport of oil wellstreams. Phase two of the project will be finalized in 2011 and afford significant model enhancements implemented in OLGA 7.
OLGA 7 The latest results and models from major R&D projects are included
p p3 3
OLGA - the central flow assurance tool CONCEPT
Evaluate different field architecture concepts FEED
EXTENSION
Combine new with existing infrastructure
OLGA values in the different phases
OPERATIONS
DETAILED ENGINEERING
Monitor and optimise production
Make operational procedures, test design, and train operators
Proven because life cycles matter
Innovative because challenges matter
Innovative and successful design and operation of onshore and offshore multiphase production systems rely on the thorough understanding of flow behaviour.
OLGA is thoroughly validated through ever more challenging field development and operations.
Using OLGA from early concept evaluation, through engineering to operation, secures overall capital and operating cost effectiveness. The unique competitive advantage of OLGA lies in the ability to accurately model the dynamic qualities of multiphase production.
p4
Define flow assurance strategy
Acknowledging the responsibility to meet tomorrow’s oil and gas industry challenges - we involve both research and operational environments in breaking new barriers. New technology is developed, made available, and supported through worldwide cooperation and organisation.
OLGA 7- Commitment to support Superior support and local presence where you are
Flow Models - because accuracy matters
Phase distribution over cross section
3D visualisation of 2D velocity distribution
3D visualisation with slugflow in red and stratified flow in blue
Flow model development – the heart of OLGA The flow model is the basis for any successful flow simulation; the model contains the physics describing flow in a given cross section of the pipeline and OLGA integrates this information along the pipeline or over the pipeline network. In SPT Group, we pride ourselves on an ongoing development and continuous improvement of our flow models for key flow regimes such as stratified, annular, slug and bubble flow. SPT Group scientists, in collaboration with industry partners and award winning researchers at the Institute for Energy Technology, perform basic and applied research towards the essential challenge of always improving the fundamental physics, quality, and simulation speed required for the flow models in OLGA. Furthermore, we apply a substantial effort to constantly tune and improve our existing flow models through the OLGA Verification and Improvement
Program (OVIP), wherein partners provide field data used to verify and tune OLGA and continuously expand the operating envelope of the simulation engine. Our involvement in academic and industry-financed projects secures that we are at the forefront of applied research for flow modelling. With OLGA 7, SPT Group has launched a revolutionary new flow model for stratified flow called OLGA High Definition (HD). This step-change technology is available as a new module in OLGA and is the first flow model in the industry where the real pipe geometry forms the basis for the physics. This yields better accuracy in predictions of key parameters such as liquid hold-up, liquid content and pressure loss – crucial for stratified flow regimes. OLGA HD can also render the simulation results in three dimensions for a pipe section – enhancing the available analytical capabilities and decision support significantly.
OLGA 7- Innovation for the future Developed and maintained to solve tomorrow’s challenges
p5
From concept to operations - becaus
Design for optimal production and minimum downtime in pipeline Successful design and operation of onshore and offshore multiphas OLGA simulations in the FEED phase furnishes proven results for crit
Network dynamics Evaluate how production systems respond and how to deal with transient peaks
System instabilities Analyse blowout scenarios and predict liquid and pressure surges to reduce their effects
Slugcatcher design and operations Calculate when large liquid volumes can be expected to arrive at the slugcatcher location
Inhibitor management Track and optimise inhibitor injection
Depressurise system Predict temperatures for material selection criteria when a pipeline is blown down
Gas Lift Optimise the volume of gas used with production stability and production volume
Well cleanup Find the best cleanup procedure for wells and later field production
p6
New in OLGA 7 - Improved workflows Reduce your modelling time by 20%
se flow assurance matters
es and wells se production systems rely on the understanding of flow behaviour to ensure technical, operational and HSE integrity. tical scenarios and the capability extends all the way through tail-end production.
Conceptual flow assurance Evaluate field production design concepts to detect dynamic problems and operability
Flow blockage Predict critical temperatures to avoid hydrates and wax appearance
Tieback solution Verify tieback concepts with flow assurance challenges in early evaluation phases
Liquid management Calculate liquid accumulation to make pigging strategies and estimate exit volumes
Pressure protection system Verify protection design of separators when a choke collapses
Subsea Processing Design and optimise subsea processing facilities with wells and pipelines Cooling and heating calculations Evaluate how temperatures will influence production flow and system integrity
Liquid loading of wells Identify when wells stop to produce and how to extend the production time Well Completions Design and operate to maximise well producers
New in OLGA 7 - Interactive simulation Restart at any time during simulation
p7
Workflows - because efficiency matters The OLGA 7 graphical interface provides a wide range of tools, workflows and workspaces to efficiently give the required simulator input to perform all your studies. The interface also offers powerful analysis tools to visualise, export and ultimately understand and communicate the dynamics of the simulated model. Accurate pre-processing and comprehensive post-processing of simulation cases is crucial but often time consuming. That is why OLGA 7 incorporates new and improved workflows as well as new methods to shorten the Modelling – Simulation – Analysis cycle.
MODEL ANALYSE SIMULATE
SIMULATE Traditional Manual Workflow
ANALYSE
MODEL
A MODEL ANALYSE
SIMULATE
SIMULATE
Multi Case Workfl
SIMULATE
SIM
p8 6
New in OLGA 7 - New GUI Easy to use with new user interface and workflows
Risk Management and Optimisation module powered by MEPO ® Flow Assurance system performance is affected by many parameters associated with uncertainties. This comprises geometrical unknowns, fluid uncertainties, operational and other input parameters. The new module in OLGA offers a systematic approach to studying the risk picture and identifying the major risk contributors in a general flow assurance project. New workflows are applied to derive uncertainty bands for the operational envelope with for example P10, P50 and P90 probabilities. In addition, tuning and optimisation capabilities are provided with robust global and local optimisation methods.
-60
-40
-20
%
20
40
60
80
100
120
HC Liquid Fraction Liquid Density Trunk Line Geometry Arrival Pressure Gas Density Gas / Liquid Surface Tension Liquid Viscosity Seawater Temperature Heat Transfer Coefficient Flow Line Length Hydraulic Wall Roughness Internal Diameter Gas Viscosity
ANALYSE MODEL
studies low
MULATE
MODEL ANALYSE
Interactive simulation
SIMULATE
New in OLGA 7 - Risk Management and Optimisation module Tune complex models and optimise production
p9 7
Modelling Context sensitive help and intelligent validation – reduce training time OLGA 7 is equipped with an up to date context sensitive help system which allows you to quickly get information and documentation on the component at hand. Templates and sample cases are included making it easy to get started with OLGA. This greatly reduces the time spent on model creation and will guide and help even the novice user to get started with advanced multiphase simulation. Interactive workspace – save time and improve the quality control The interactive workspace in OLGA 7 allows you to construct your network quickly and efficiently. Modifying and arranging your network is done through familiar interaction with the components. The workspace contains intelligent visual aids that will guide you through the construction phase saving you both execution time and training time.
Proje & Ca organiz Context sensitive help and intelligent validaton
Interactive Workspace and customized components
User libraries – reuse definitions and components to save time and reduce errors The OLGA user interface provides a large set of ready to use materials and components. The user library is fully customisable and will help save time and reduces the possibility of providing potentially wrong parameters to particular components of the model.
p 10
New in OLGA 7 - Modelling orientation Interactive workspace and customised components
Mode
User libraries
Grap Conne Assis
Project and case organisation – streamline your studies and collaborate OLGA 7 provides you with an intuitive and comprehensible project structure. The projects and cases are organised in OLGA files and can easily be shared. Domain specific workflows – confidently perform specialist studies in less time The OLGA simulator provides the power and flexibility to dynamically simulate almost any multiphase case scenario. As production evolves and more data is collected new challenges may arise that require more in depth understanding of the fluid dynamics.
ect ase zation
elling
Custom Workflows
Custom dialogs and wizards – increase accuracy OLGA 7 contains a multitude of comprehensible and useful dialogues and wizards that will guide you through the vast amounts of possibilities available in the OLGA simulator.
Custom Dialogues and Wizards
Parametric studies and sensitivity tool One of the main reasons for performing dynamic multiphase simulation is to analyse the effects on the flow when changing some of the model input. OLGA 7 provides several tools to do these studies automatically and have recently joined forces with MEPO to provide an even more powerful package.
Parametric studies and sensitivity tool
phical ection stance
Graphical connection assistance – efficiently build your models OLGA 7’s powerful tools allow rapid connection of logical and compatible components.
New in OLGA 7 - Aides Context sensitive help and validation
p 11
Analysis
Report-friendly multiple plots – Communicate results better OLGA 7 incorporates state-of-the-art plotting capabilities - mix and match multiple graphs and types in one plot for comprehensive presentations and consistent communication.
3D plot – increase understanding through geometric awareness OLGA 7 includes powerful animated 3D plotting of liquid holdup. The possibility to animate the plot in combination with the 3D geometry gives immediate understanding of aspects that result in large effects in liquid holdups.
Integration and collaboration – exchange information and increase confidence All OLGA projects, cases and simulation results can easily be shared amongst colleagues. All OLGA files are “open format” making results simple to manipulate or integrate with third-party tools or applications developed in-house. The integration possibilities and readily available collaboration capabilities can be used for cooperative workflows that include data quality management and verification processes.
p 12
«Real t interac plott Multiple plots
3D plotting
Anal
Integration and collaboration
New in OLGA 7 - Analysis assistance “Real time” interactive plotting and user defined templates
Slu trac
Real time Interactive Plotting – Reduce simulation time and see results immediately The new interactive simulation in OLGA 7 enables reduction in the overall time spent on studies. Analysis and plotting is available “on the fly” and the simulation can be stopped or paused at your convenience. Curves and values can be placed onto the workspace to better convey the results in real time.
time» ctive ting
lysis
ugcking
User defined Templates
User defined templates – Increase efficiency and professionalism Reusing work and removing repetitive tasks is valuable when performing many or large studies. OLGA 7’s user-defined templates for plotting increase work efficiency and its well-organized template and layout library is timesaving and enables easy sharing with consistent layouts and professional reporting.
Multiphase toolkit and 3D velocity plot – render speed effectively Couple 1D holdup data with 2D velocity simulation results to create stunning 3D velocity plots.
3D velocity plots
Export
File, image and animation export – share your results All simulation results are available for export in various formats. Export plot data in a single click, configure and export video clips from animated profile plots, export graphs, flow diagrams, well schematics and plots to image files.
Slugtracking – increase understanding of transient phenomena Track each individual slug from its formation to either its exit from the pipeline or its extinction – consider the mechanisms of slug formation, merging of slugs, growth and decay of slugs.
New in OLGA 7 - HD module: Increased accuracy for liquid holdup predictions for stratified flow in gas/condensate lines
p 13
Connectivity at all levels because flexibility matters Software connectivity and open access to simulation technology is the key for your success - OLGA 7 accommodates efficient connection with complementary solutions. OLGA 7 offers upgraded communication capabilities through the new OPC communication protocol interface and other connectivity capabilities. A versatile simulation platform, OLGA facilitates and supports system integration, life cycle simulation and interactive communication with operators and other simulators. Key features for connectivity in OLGA 7 include: • Apply your own physical models in OLGA simulations with the OLGA Plugin interface • Connect and interact with MATLAB and Excel using the OPC DA server. • Control process simulators from OLGA with the OPC client • Connect and exchange data with other simulators (reservoir, well, pipeline, process, etc.), using their OPC client. • Load a module dedicated to do advanced calculations on OPC items • Script simulator execution and controller calculations with a dedicated open scripting language • Couple different models (reservoir, well, pipeline) in OLGA for true integrated simulation • Export and import data links to other simulators Cross-disciplinary work processes are indispensable in engineering and operations – the connectivity capabilities in OLGA significantly lowers the threshold for effective collaboration and communication.
Plugin - for user defined functions The Plugin interface allows users to include the physical effects of their own models in OLGA through DLLs. OLGA 7 has a flexible flow assurance framework for tracking user defined dispersions and utilising external physical models. Physical models and effects of additional phases can be provided by the user to include a multitude of effects.
Consistent PVT for workflows and OLGA lifecycle Through our partnership with Calsep since 2000 - the market leading PVT software PVTsim® has evolved to become the standard fluid characterisation and PVT simulation technology used in OLGA. The PVTsim® version for OLGA provides the fluid handling options and capabilities required in order to generate the optimal fluid property tables for OLGA simulations. Calsep’s fluid property software is the thermodynamic engine of the Compositional Tracking module in OLGA. More recently, the PVTsim® and Compositional Tracking technologies have been further developed to integrate with the OLGA Online software for use in our production management systems. The PVTsim® technology is also available in our steady state pipeline simulator PIPEFLO, ensuring full PVT consistency in our steady state to dynamic workflows for simulation of pipelines and pipeline networks.
p 14
New in OLGA 7 - Plug-In module: An open framework for integration with external physical models
Modularity - because versatility matters OLGA is structured with a modular solution to yield the ability to identify, prevent and solve flow assurance problems throughout the field life. Our team will assist in configuring the appropriate combination. The Slugtracking module tracks each individual slug from its formation to either its exit from the pipeline or its extinction. The model considers the mechanisms of slug formation, merging of slugs, growth and decay of slugs. The Compositional Tracking module allows dynamic change in fluid composition and tracking of individual components along the pipeline. The Corrosion module predicts the variation in corrosion rate along a pipeline where temperature, pressure, flow velocity and flow regime varies. The FEMtherm module simulates the thermal interaction among production flowlines, heating lines and other lines that are enclosed within a bundle. The Multiphase Pump module optimises multiphase boosting, design and operational analysis with available models for both centrifugal and displacement pumps. The Wells module simulates the transient multiphase flow in the wellbore where the reservoir properties and inflow relationships plays important roles when modelling the scenarios. The Wax module predicts the requirements for pigging for wax removal, thermal insulation, active heating and chemical injections. The Single Component module allows for simulation of transient behaviour of single components and their transition between liquid and gas phase as well as their behaviour beyond critical point. The Hydrate Kinetics module predicts the onset of solid hydrate and their formation rate.
The Inhibitor Tracking module tracks the concentration of hydrate inhibitor (MEG, MeOH or EtOH) concentration in the water and gas phase. The Complex Fluid module discloses severe effects on flow stability, liquid inventory and pressure drop due to Non-Newtonian liquids. The Tuning module tunes the flow models against data – online or offline the module accesses a number of model parameters to be adjusted. The High Definition flow module covers stratified and large wave flow regimes - providing more consistent, scalable and accurate predictions of pressure drop and holdup. The Risk Management and Optimisation module offers a systematic way of studying the risk picture and identifying the major risk contributors in a general flow assurance project. The Plugin module is a flexible framework for implementing users’ proprietary or external physical models in OLGA as DLLs. The Advanced Blowout Control tool is an efficient simulation tool applicable from planning to operations. - In planning, establish contingency plans and operational procedures in the event of blowouts, and estimation of flow rates for environmental risk assessment. - In operations, update contingency plans with the latest operational information. - During an actual blowout, evaluation of different kill options to find the best way to regain control of the well. PVTsim in OLGA
A proper fluid characterisation is essential to fluid flow simulations. The PVTsim® package from Calsep is offered as a standard for use with OLGA and provides leading edge capabilities within fluid flow and flow assurance.
OLGA 7 - Get the overview Visualise during simulation with interactive and custom multi-plots on top of your network view.
p 15
M or e tha n 2 5 0 cli ents a nd 6 0 0 a c ti v e O LGA li censes wo rld -wi d e
SPT Group is the world leader in dynamic modelling for the oil and gas industry. Employing highly skilled professionals worldwide, SPT Group provides a combination of software and consulting services within multiphase flow and reservoir engineering. www.sptgroup.com
because flow matters
Australia, Perth
Tel: +61 8 9286 6500
Norway, Oslo
Tel: +47 63 89 04 00
Brazil, Rio
Tel: +55 21 3544 0002
Norway, Bergen
Tel: +47 63 89 04 00
Canada, Calgary
Tel: +1 403 277 6688
Norway, Stavanger
Tel: +47 63 89 04 00
China, Beijing
Tel: +86 10 5824 6062
Russia, Moscow
Tel: +7 495 798 8666
Germany, Hamburg
Tel: +49 40 27 85 88 0
UAE, Dubai
Tel: +971 4 426 4855
Mexico, Mexico City
Tel: +52 55 5211 9211
UK, London
Tel: +44 1483 307 870
Malaysia, Kuala Lumpur
Tel: +60 3 2161 4570
USA, Houston
Tel: +1 281 496 9898
[email protected] OLGA ®, OLGA ® Online, DRILLBENCH ®, MEPO ®, ROCX ®, IPOS ®, edpm ®, WELLFLO, PIPEFLO, FORGAS. be dynamic ® and Academy of Petroleum Dynamics ® are registered trademarks of SPT Group
