Geothermal: The environmental answer to non-intermittent generation?
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Geothermal: The environmental answer to non-intermittent generation? Istanbul, October 10 th 2013 Matthias Kliesch Region West
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Geothermal: The environmental answer to non-intermittent generation?. Istanbul, October 10 th 2013. Matthias Kliesch Region West. Short introduction into geothermal power generation hydrothermal System. Source: EnBW. Risk Analysis Risk Assessment Workshop. - PowerPoint PPT Presentation
Transcript of Geothermal: The environmental answer to non-intermittent generation?
Geothermal: The environmental answer to non-intermittent generation?
Istanbul, October 10th 2013
Matthias Kliesch
Region West
MARSH 221 April 2023
Short introduction into geothermal power generationhydrothermal System
Source: EnBW
MARSH 321 April 2023
Defining, identifying and quantifying (likelihood and magnitude) of risks in a structured procedure.
Determination of risk tolerance or capability of bearing risks on balance
•Definition of risk
•Structured identification and screening in sectors of
– operational,
– financial,
– strategic and
– political risks
•Quantification of top risks
•Management/Handling of risks, comments on insurability
=> clear understanding of the major risks.
Risk AnalysisRisk Assessment Workshop
MARSH 421 April 2023
Risk AnalysisRisk Assessment Workshop
19 lost in hole scenarios
11 rising prices for raw material
17 additional expenditures
9 reduced feed in tarif
21 technical risk / drilling
34 property damage caused by fire
15 wrong strategic decisions on investment
12 availibilityof resources
2 loss of key personnel
1 loss of permit
23 exploration risk
# TOP RISKS
19 lost in hole scenarios
11 rising prices for raw material
17 additional expenditures
9 reduced feed in tarif
21 technical risk / drilling
34 property damage caused by fire
15 wrong strategic decisions on investment
12 availibilityof resources
2 loss of key personnel
1 loss of permit
23 exploration risk
# TOP RISKS
MARSH 521 April 2023
Loss HistoryAccumulated Indemnifications
A: exploration risk
B: drilling risk and LiH
C: losses during operational phase
Examples on drilling risk and Lost in Hole (LiH) losses
1100 m 13 3/8“ Casing fallen 500-600 m deep into the well
Casing stuck when ran in hole
Casing collapse at injection test
Well instability => stuck drill pipe
Differential Sticking => stuck drill pipe
Memory Tool lost close to the well head
Losses often occur when well design is changed during the drilling phase! A diligentrisk evaluation is still required
MARSH 621 April 2023
Loss Historyamounts of losses
A: exploration risk
B: drilling risk and LiH
C: losses during operational phase
Examples on operational phase losses
Compensation tank collapsed while discharging
Leakages on shell type heat exchangers due to inappropriate seal material
Pump (ESP) motor burned
Pump (ESP) frequency converter failed
Pump (Lineshaft) corrosion at rising pipe
Pump (Lineshaft) broken lineshaft
Turbine, rotor failiure
MARSH 721 April 2023
Loss Historydistribution of magnitudes
Examples exploration risk losses
Total loss dry well
Stimulation measures to increase volume flow
─ Sidetrack/Multilaterals
─ Increase filter length
─ Increase diameter of filter length
─ Massive acidising under pressure
Importand: intense cleaning of the well after drilling especially injector
MARSH 821 April 2023
Contakt
Marsh GmbHKasernenstr. 69D-40213 Düsseldorf]Telefon +49 (0)211-8987-373Telefax +49 (0)211-8987-621Mobil +49 (0)[email protected]
Matthias KlieschKey Client Executive
Marsh GmbHKasernenstraße 6940213 DüsseldorfTelefon: (02 11) 89 87-0Telefax: (02 11) 89 87-369
Sitz: Frankfurt am Main; Handelsregister: HRB 12141; Amtsgericht: Frankfurt am Main
HSBC Trinkaus & Burkhardt (BLZ 300 308 80) 1260 014
Geschäftsführung: Siegmund Fahrig (Vors.),
Dr. jur. Georg Bräuchle, Oliver Dobner, Dr. jur. Peter Hoechst,
Jochen Körner, Erwin Lehmann, Thomas Müller
Vorsitzender des Aufsichtsrates: Sven Alexander Kado
