gasassure brochure
TRANSCRIPT
Stochastic Simulation | [email protected]
www.GasAssure.com
INTEGRATED GAS PRODUCTION MODELLING
THE CHALLENGE BEING FACED:
To optimise allocation of gas reservoirs to meet short/medium/long term gas contracts
To provide timely solutions for changing circumstances
To model all elements with optimal detail to achieve practical solutions for production allocation
RESERVOIR TO MARKET
GasAssure models the complete supply chain for gas from Sub-Surface to Market
o Sources: reservoirs, wells, platforms, gathering systems
o Processing into products according to contracts
o Markets: trunkline export, pipeline inventory, demand statistics
GasAssure is the only integrated gas planning tool that is able to back allocate production from market demand
inputs. It enables complete visibility and tracking of all gas components from the reservoir through to a wide range
of complex markets
GasAssure very quickly defines, characterises and explores what-if scenarios, facilitating an agile gas planning
approach.
It assists those involved in all aspects of gas marketing, and the commercial decision making process, from
exploration through to production.
With GasAssure the maximum return on all gas products is achievable and the need for overly conservative
contractual agreements is reduced, whilst still ensuring predetermined obligations are met.
Stochastic Simulation | [email protected]
www.GasAssure.com
GasAssure optimally allocates sources to Markets
o Includes allocation to different markets according to specified ranking and priority
o Component wise allocation focussed on meeting a contract’s gas specification
GASASSURE’S TECHNICAL FEATURES
GASASSURE’S UNIQUE CAPABILITIES
ROBUST AND FAST ALGORITHM - Plan the entire supply chain from reservoir to the final market and generate a
solution in a fraction of the time taken by current offerings.
COMPONENT TRACKING - Track hydrocarbon components at any stage of the supply chain enabling fast and easy
quality checking. GasAssure is suitable for short, medium and long-term planning.
CONTROL THROUGH PRIORITY AND RANK - With the flexibility to prioritise how markets, reservoirs and facilities
come on-stream, GasAssure provides complete control over production allocation.
PRODUCT FOCUS (COMPLEX MARKETS) - GasAssure is capable of handling complex markets with a range of
products (such as domestic gas, LPG and LNG), some or all of which must meet stringent market specifications.
4. PLATFORM
• Automatic event controls
• Constraint rollbacks
• Fuel, flare and product allocation accounting
3. FACILITIES FEATURES
• Arbitrary facilities with pressure drop functions
• Choke models
• Gas plant and separation
• Compression models
1. RESERVOIR OPTIONS
Simple and connected material balance tanks
Compositional
Multi-layer
Aquifer and depletion models
2. WELL DESCRIPTION
Multiple completions
Multiphase flow – tables or correlations
Wellbore models simple and discretised
5. NETWORK SOLVER
• Solves a multi-objective nonlinear optimisation problem for network back allocation with pressure constraints
• Import a Type Curve instead of defining reservoir & wells
• Optimises supply to markets at each time-step
•
6. MARKETS & CONTRACTS
• Multiple product delivery point
• Individual or notional contracts by product
• Delivery pressure, ranked, energy or rate, compositional
• Spot market
Stochastic Simulation | [email protected]
www.GasAssure.com
EVENT TRIGGERS - GasAssure is market driven, handling various trigger options (peak, potential etc) inside the
optimisation engine, to trigger multiple events in sequence, ensuring that gas contract obligations are met.
SUB-NETWORKS - Enables evaluation of a section of the network separately, ensuring engineers avoid
cumbersome data handling or network modification issues.
ADVANCED DATA HANDLING - New data tables can be saved under different names and evaluated for a particular
network. This saves time and money for an organization as an engineer's efforts can be spent on analysis rather
than data handling/manipulation.
THE USER INTERFACE
A simple, intuitive, graphical user interface has been developed to enable users of all levels the opportunity to build a
representative gas system in a quick and efficient manner.
OTHER FEATURES INCLUDE:
A powerful algorithmic core
which is launched separately for
batch processing on the local
network or secure private clouds
An SQL database, implemented
remotely or locally using MS
Access, providing data
consistency between input,
output and run administration
Plotting and QA of input and
output within the GUI
Transparent export of output
results to MS Excel or other
applications
RESULTS VISUALISATION AND REPORTING
As GasAssure is capable of tracking
hydrocarbons with individual
components at any stage of the supply
chain, it can generate a huge array of
reports.
In addition to the variety of standard
report templates available, GasAssure
also provides the option to build
customised reports using SQL queries.
A user can export this report to Microsoft
Excel for further analysis and reporting,
as well as graph and plot generation.
Stochastic Simulation | [email protected]
www.GasAssure.com
SUMMARY
Features Benefits
Market Driven
Supports optimal gas reservoir management
Triggers network events based on market demands and prioritisation
Assists in the planning of short, medium and long term projects and assessing contract
feasibility
Truly Integrated Solution
Enables all key decision makers involved in the marketing of gas to have a fully
integrated view, rather than islands of information
Models the entire network from the reservoir through to market
Provides subsurface flexibility and can generate multiple “what-if” scenarios
Robust Network
Solver for Production
Optimisation
Solves a multi-objective nonlinear optimisation problem for network back allocation
with pressure constraints
Optimises supply to markets at each time-step
Provides an invaluable tool for engineers and planners in:
o Operational decision-making
o Facilities management
o Handling seasonal demand changes
o Scenario planning
Fully compositional Controls and tracks hydrocarbon components from source through the whole network
Enables product-based demand from markets to reservoirs
Computationally
efficient and fast
(minutes not hours)
Models all network elements with optimal detail to achieve practical solutions for
production allocation
Handles the right amount of information to optimize the complete gas planning system
Saves time and money
Facilitates efficient and timely decision making
Competing Supply
Contracts
Users can plan responses to competing contractual obligations, based on resource
prioritisation
Complex Tank
Modelling
Enables detailed subsurface modelling including:
o Multi-layered reservoirs
o Cross-flow between well completions
Alternatively the subsurface can be represented by a type-curve
Storage Modelling Models storage of gas and its reallocation back into the network
Network Hubs/Sub-
Networks
Facilitates effective management of extremely large networks
Sub-networks can be created and run as separate systems
Simple, intuitive,
user friendly
interface
Allows even novice users the opportunity to build a representative gas system quickly
and efficiently
Minimises training costs
SQL database Enables data consistency between input, output and run administration
SQL based query and reporting tools available