Transcript RWE Transgas Net, The Czech Republic

February 26 - 28, 2006
Madrid, Spain
IGU, WOC2
Underground Gas Storage
Triennial Work Programme
Proposal
Vladimír Onderka
(RWE Transgas Net, The Czech Republic)
1. Administration, Meetings,..
2. Actual tasks of UGS industry
frequent/permanent tasks
3. Preliminary Study Topics
4. Technical Venues, Workshops
5. Other Proposals, Improvements
RWE Transgas Net
Madrid, 26-28 February 2006
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1. ADMINISTRATION 2006 - 2009
Incoming WOC2 Chair:
Vladimír Onderka,
Incoming WOC2 ViceChair: Héléne Giouse (GdF)
Incoming WOC2 Secretary : Petra Grigelová
Administrator:
Olga Solaříková
Location:
RWE Transgas Net, s.r.o.
V Olšinách 75/2300
PO BOX 166
100 00 Prague 10, The Czech Republic
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Madrid, 26-28 February 2006
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Administration
according to WOC 2’s best tradition:
−
Two meetings per year
−
Workshops related to each meeting
−
Joint workshops with WOC1, PGC A, PGC B
−
Obtaining WOC 2 members from USA, South America……
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Cooperation with AGA, national gas bodies, SPE…etc
−
Kick off WOC 2 meeting after Amsterdam WGC: Prague, September 2006,
date - to be defined
−
Other meetings:
− (Candidates: Netherlands, Russia,….)
RWE Transgas Net
Madrid, 26-28 February 2006
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 Communication:
– e-mail
– www.igu.org
– fax/phone
– phone conferences
– meetings (WOC, SG´s, workshops)
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Madrid, 26-28 February 2006
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2. ACTUAL TASKS FOR UGS INDUSTRY
- frequent/permanent tasks
 ICT tools, state of the art techniques.
 Reservoir optimization, increasing the range of working
pressures, increasing production/injection rates.
 Technology improvement, fast swaps production/injection, data
management regarding TPA.
 Optimizing manpower and maintenance.
 On-line optimization, simulation/artificial intelligence.
 Geosciences and reservoir engineering
 Remote control.
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Madrid, 26-28 February 2006
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e.g. - ICT – Standard environment?
 SCADA systems
 Modular instrumentation and control systems, e.g. Distributed Control Systems (DCS)
 Total system management (pipelines, compressor station, UGS)
 Systems for optimizing the UGS facility, incuding subsurface/surface modelling
 Expert systems
 Customer Information System (CIS)
ICT
PURPOSE
EFFECT
TARGET
Scada systems
- Base for system simulation
- Control transport and UGS
systems
- Contract control
Storage simulation
- Optimum UGS design &
number of wells and
designs, technologies
- Optimize UGS operation
- Optimize UGS investment
(reservoirs, caverns)
- Realizing the full potential of
UGS (volume, rates),
reservoir & surface simulation
GIS
- Strategic and management tool
- Information system, e.g.
for TPA
- Optimize UGS operation
- On-line continuous optimization
- Increasing efficiency
of UGS
- Optimize UGS operation
-Remote control UGS
- Save man power
- Save costs
- Optimize UGS operation
- Unmanned operation 7
- Monitoring
- Optimize UGS operation
- Optimize the safety of UGS
by human interfaces
supervision system
(Geographical
Information System)
Expert System
(Artificial intelligence)
Automation
RWE Transgas Net
Madrid, 26-28 February 2006
e.g. iUGS - UGS expert systems – is it ready
and interesting?
UGS SCADA
System
Control Module
Short-Term
Surveillance and
Reporting Modules
Workflow Design
and Automation
Data
Buffer
?
Ex System
Database
Network Modelling
Simulation
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RWE Transgas Net
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Madrid, 26-28 February 2006
minutes – hours
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1 hour - 1 day
1 month – 1 year (cycle)
Geosciences and reservoir engineering
 Regarding the size and containment of the structure: reservoir monitoring by
use of 3D or 4D seismic, use of attributes in order to get a more reliable
image of the reservoir and thereby optimizing working gas and minimizing
cushion gas and non recoverable gas.
 Distribution of gas saturation.
 Design of optimum wells and well patterns based on simulation.
 Managing reservoir fluids and gas quality by using tools capable of simulating
fluid flows in the reservoir, possibly also capable of simulating mixing of
different gases.
 Rock mechanics – stress and strain simulation in rock caverns.
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Technology improvements
 Large well bore drilling and completion: completion systems with large inner
bore diameters to allow high withdrawal rates due to reduced friction losses in
the tubing.
 Stimulation and hydraulic fracturing of wells.
 Highly deviated wells, allowing clustering of wellheads.
 Horizontal wells, allowing improved reservoir drainage and flow rates.
 Expanding existing UGS by increasing withdrawal rates, adding wells, adding
facilities, increasing reservoir pressure, and decreasing existing flow
limitations.
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Madrid, 26-28 February 2006
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3. STUDY TOPICS PROPOSAL
 2.1. UGS Database:
 continuity in database development
 enlarging database, eg:
» eruption events
» emergency events
» remediation
» split between oil and gas fields
» incorporation of pipeline systems related to UGS
» national trends of UGS industry
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Madrid, 26-28 February 2006
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 2.2.
UGS Technology Improvements
Horizontal drilling and long-term stability of wells
Formation Damage mechanisms, such as salt, scales,
lubricants and corrosion inhibitors.
What are the most serious problems in the various regions
of the world, and what remediation practices are used
Well Bore Integrity: What tools are used for
determination. New Technologies in downhole logging,
mechanical integrity testing, etc.
Cement bonding and how it relates specifically to gas
storage wells. Cement deterioration and determination if it
occurs.
Investment savings – alternative cushion gases etc.
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Madrid, 26-28 February 2006
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2.3. Intelligent UGS
 Automation in dataflow from Scada and continuos
analyses and process evaluation
 Artificial intelligence and data mining
 On – line coupled surface/reservoir simulation
 Cost savings
 TPA and capacity nomination
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Madrid, 26-28 February 2006
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4. Technical venues, workshops
 Workshop Topics
– Sequestration of CO2
– iUGS, emerging technologies, ICT
– Best practices in UGS development/optimization
– First experiences from unbundling
– Stategic reserves and legislation (Europe)
– Case studies
– News in geosciences and reservoir engineering
approaches
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Madrid, 26-28 February 2006
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5. Other Proposals, Improvements ???
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 Thank you for your attention!
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Madrid, 26-28 February 2006
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