review of nnwadoro (oml 109) screening work to napims by statoil march 2004
DESCRIPTION
Review of NnwaDoro (OML 109) screening work to NAPIMS by Statoil March 2004. License Map. NnwaDoro - The key to monetise gas and unlock oil for Nigeria’s southern deepwater area. OPL 216. OPL 217. OPL 218. OPL 219. OPL 220. NGOLO. AGBAMI. NNWADORO. BOLIA/CHOTA. - PowerPoint PPT PresentationTRANSCRIPT
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Classification: Statoil internal Status: Draft
Review of NnwaDoro (OML 109) screening work to
NAPIMS by Statoil
March 2004
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License Map
309
312
310 311
313 316315314
AGIP
209 210
211
213
219
217 218
216
221220
222
223
LAGOS
BENIN CITY
WARRI
PORT HARCOURT
3 Eo 4 Eo 8 Eo
4 No
5 No
6 N
o
1000 m
200 m
212
2000 m
242
243 244246
247
o
245
248
249
250
6 Eo
3 No
317 318
319 320
322321
323 324
325 326
251
252
253
264
254 255 256 257 258
259260261263 262
328
330
331
327
329
0 100 KM
3000 m
4000 m7 E5 Eo
214 215
NnwaNnwa--1&21&2 DoroDoro--1X1X
OPL218 & OPL219
309
312
310 311
313 316315314
AGIP
209 210
211
213
219
217 218
216
221220
222
223
LAGOS
BENIN CITY
WARRI
PORT HARCOURT
3 Eo 4 Eo 8 Eo
4 No
5 No
6 N
o
1000 m
200 m
212
2000 m
242
243 244246
247
o
245
248
249
250
6 Eo
3 No
317 318
319 320
322321
323 324
325 326
251
252
253
264
254 255 256 257 258
259260261263 262
328
330
331
327
329
0 100 KM
3000 m
4000 m7 E5 Eo
214 215
NnwaNnwa--1&21&2 DoroDoro--1X1X
OPL218 & OPL219
309
312
310 311
313 316315314
AGIP
209 210
211
213
219
217 218
216
221220
222
223
LAGOS
BENIN CITY
WARRI
PORT HARCOURT
3 Eo 4 Eo 8 Eo
4 No
5 No
6 N
o
1000 m
200 m
212
2000 m
242
243 244246
247
o
245
248
249
250
6 Eo
3 No
317 318
319 320
322321
323 324
325 326
251
252
253
264
254 255 256 257 258
259260261263 262
328
330
331
327
329
0 100 KM
3000 m
4000 m7 E5 Eo
214 215
NnwaNnwa--1&21&2 DoroDoro--1X1X
OPL218 & OPL219
309
312
310 311
313 316315314
AGIP
209 210
211
213
219
217 218
216
221220
222
223
LAGOS
BENIN CITY
WARRI
PORT HARCOURT
3 Eo 4 Eo 8 Eo
4 No
5 No
6 N
o
1000 m
200 m
212
2000 m
242
243 244246
247
o
245
248
249
250
6 Eo
3 No
317 318
319 320
322321
323 324
325 326
251
252
253
264
254 255 256 257 258
259260261263 262
328
330
331
327
329
0 100 KM
3000 m
4000 m7 E5 Eo
214 215
NnwaNnwa--1&21&2 DoroDoro--1X1X
OPL218 & OPL219
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OPL 217OPL 216 OPL 218 OPL 219
OPL 246
OPL 220
AGBAMI
BOLIA/CHOTA
NGOLO
NNWADORO
BILAH
Gas: 6
AKPO
NnwaDoro - The key to monetise gas and unlock oil for Nigeria’s southern deepwater area
SOUTHERN RIM JDZ
Gas:10 – 15 tcfOil:1-2 bn bbls
Gas: 5 – 10 tcf ?Oil: 2 –5 bn bbls ?
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Background• Nnwa discovered in 1999. Same structure drilled as Doro in the adjacent OPL 219
same year. Nnwa-2 Appraisal drilling 2002
• Partners in OML 109 (OPL 218) Statoil (Operator) and ChevronTexaco
• Partners in OPL 219 Shell (Operator), ExxonMobil, Total and Agip
• Water depth 1400 meters, main reservoir fluid is dry gas
• Floating LNG evaluated by both Operators to be possibly the most promising concept for commercialising of the Nnwa Doro gas resource in 2002
• MoU signed in June 2002 terminated Dec 2003
• Upstream and Mid stream scoping work 2004 by OML 109– Upstream 20 wells and sub sea production system– Midstream FLNG and onshore LNG
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Design Basis - Arrival Conditions• Feedstock flowrate: 920 mmscf/d
– ~17 year on plateau– ~9 years on decline
• Arrival conditions:
• Space will be provided for future re-compression• Operating range: 50 – 100% of design throughput
Phase of production Total gas rate
mmscf/d
Pressure Offshore
@ battery limit
Temperature
@ battery limit
Initial 920 490 - 75 bara 20 – 90 °C
End of initial depletion 920 75 bara 20 - 90 °C
End of plateau 920 40 bara 20 – 90 °C
End of field life 250 40 bara 20 – 90 °C
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NnwaDoro FLNG concept
FLNG cap
Gas prod : 920 mmscf/d
LNG : 5,77 MTA
LPG: 0,30 MTA
Cond Prod: 35 kbpd
Hull Storage
LNG: 240 000 m3
LPG: 80 000 m3
Cond: 120 000 m3
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Layout Summary
Updated FLNG study
2004
MOU FLNG study
2003
Topside length inclusive
safety gaps
368,2 m 329 m
Topside width 76 m 81,2 m
Footprint area 27 983 m2 26,715 m2
Number of Modules 5 10
Numbers of levels 3 - 4 3 - 4
Steel Barge 450m x 76m 435m x 81,2m
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NnwaDoro FLNG concept (450m x 76m)FLARE
FIRE/BLAST WALL
INLET/GASTREATMENTMODULE
LIQUEFACTIONMODULE
FRACTIONATIONMODULE
LAYDOWN AREA
POWER GENERATIONMODULE (5 + 1)
LAYDOWN AREA
LIVINGQUARTERS
WORKSHOPS
UTILITY/ELECTRICALEQUIPMENT MODULE
OFFLOADING AREA
OFFLOADING TANKER
RISERS
CHOKEMODULE
CHEMICAL TOTE TANKS& INJECTIONSKID
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Topside FLNG Weights
Updated FLNG study
2004
MOU FLNG study
2003
Master Equipment List –Tonnes
%
14 462
25.6
15 512
26.4
Structure –Tonnes
%
26 623
47.2
27 143
46.2
Bulk –Tonnes % 15 330
27.2
16 125
27.4
Weight allowance included 15% 15%
Total -Tonnes 56 415 58 780
Weight outside topside area 6 473 5 980
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Steel Hull issues• The hull concept design is based on:
– Double hull used for ballast water
– Double deck areas (dry voids)
– Steel deck fully insulated over full deck area for process modules
– LNG tanks of either the membrane or SPB type
– LPG tanks non-pressurised fully refrigerated design
– Living Quarters for 200 persons at the aft end of the hull
• NnwaDoro topside footprint/ topside area requirement dictate the size
of the hull
• Flare is positioned at the bow
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NnwaDoro FPSO concept and onshore LNG plant
Offshore FPSO cap
Gas prod : 967,5 mmscf/d
Cond Prod: 32 kbpd
Storage
Cond: 159 000 m3
Onshore plant cap
Gas prod : 920 mmscf/d
LNG : 5,63 MTA
LPG: 0,34 MTA
Cond Prod: 4 kbpd
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LNG plant Layout
• Tank farm cap
– 2 x 150,000 m3 LNG tanks
– 1 x 50,000 m3 Propane tank
– 1 x 50,000 m3 Butane tank
– 1 x 36,000 m3 condensate tank
• Infrastructure for surrounding
districts, e.g. roads / township / civil
amenities /airport / etc. is excluded
from the present scope
C4 C5+
C3
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Cost and scheduleAssumptions
• ESTIMATE ASSUMPTIONS
– The estimate is prepared in USD mid 2004 values
– Basis for the estimate are the update of results from technical
studies in the MoU phase
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CAPEX estimates – Scoping conceptsMOU FLNG
MUSD 2003
Updated FLNG
MUSD 2004
Offshore & Onshore
MUSD 2004
Upstream costs (20 wells) 1073 1505 2799
Drilling 661 835 835
Sub sea production system 412 670 670
Pipeline to shore - - 319
FPSO - - 976
FLNG concept 2835 2970 -
Topside facilities 1992 2185 -
Riser tower and turret 380 - -
Steel hull including LQ 463 785 -
Onshore plant - - 3089
Total costs 3908 4475 5888
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Price expectations Feb 2005
0,00
1,00
2,00
3,00
4,00
5,00
6,00
7,00
8,00$
/MM
Btu
HH Forw ard
Real yearly average
The current market assumes that the US natural gas prices in real terms will move towards 4,00 05USD/MMBtu by 2010
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Nigeria block 218 – NnwaDoroAssumptions• Condensate sales price:
– $25 ‘04/bbl ’04
• LNG sales price:
– $4,0 ’04/mmbtu, Henry Hub
• Regas tariff $0,55/shipping tariff $0,50 FOB price = $2,95 ’04
• Propane sales price:
– $217,4 ‘04/t
• Butane sales price:
– $216,0 ’04/t
• Inflation:
– 2,5%
• Discount rate:
– 10% nominal
• All values given as 100% project, un-risked
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Nigeria block 109 – NnwaDoroAssumptions
•No abandonment cost included for midstream (useful life of asset
longer than assumed production period)
•For upstream; condensate volumes treated according to oil terms, gas
volumes according to new gas terms. Cost split according to relative
shares of total volumes.
•Export pipeline treated as subsea cost (VAT/import duty) in upstream
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NnwaDoro cases - results
Base case
NPV@10%
nom
IRR
Case 1 NnwaDoro subsea
dev., gas sales to
FLNG
1446 15,5%
Case 2 NnwaDoro FPSO dev.,
gas sales to onshore
plant
459 11,3%
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Summary
• Need to negotiate gas PSC and pre-unit agreement to be able to move project forward
• Gas PSC and pre-unit necessary must be in place before embarking on further appraisal drilling
• Statoil is prepared to take the leadership and fast track the NnwaDoro project
• Technical Feasibility has been demonstrated
• Reduced sub surface uncertainty and increased reserve basis is a requirement for moving forward
• US market is the key target
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Way Forward1. Exploration drilling2. Appraisal drilling ongoing3. FLNG MoU phase4. OML 109 data trade (no success towards OPL 219 and OPL 246)5. OML conversion6. Re-processed seismic7. Subsurface evaluation OML 109/ OPL 219 (ongoing)8. Negotiate gas PSC/ pre-unitisation agreement (gas terms)/ Joint operating
agreement9. Prepare NnwaDoro assessment plan and budget10. Drill appraisal wells 11. Subsurface evaluation12. Concept evaluation13. Establish commercial structure/terms14. Concept selection15. FEED16. Finalise commercial agreements and fiscal terms17. Sanction (FID)18. Construction and pre-drilling phase19. Production start
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20092005
Current OML 109 Long term development plan
2006 2007 2008 2010 2011 20122004Gas terms
Gas PSC/Pre unit agreement
Subsurface EvaluationPhase 1 & 2
Appraisal Drilling ( 2-3 wells)
Phase 3
Conceptual evaluation
Concept selection
PRE-FEED & FEED
Commercial Structure/unitisation
Sanction (FID)
Construction and pre-drilling phase
Production start
Keys to delivery1. Negotiate gas PSC2. Partner alignment3. Sufficient reserves4. Cost effective concept
ITT process
Scoping work
ITT process