AIEN SEMINAR
Legal and Contractual Aspects of Natural Gas Projects
Chuditch: History of a Timorese Gas Field (in the context of the Maritime Boundary)
Before Sunrise, Jaco Island
Andy Butler
Dili, 19 April 2024
Timor-Leste Offshore: All Stages of the Gas Cycle
▪ | Bayu Undan (Santos): | |
Gas fields, key players and infrastructure | ➢ | Late in field life; undergoing FEED for CCS conversion |
▪ | Greater Sunrise (Woodside): | |
➢ Ongoing negotiations between JV / governments | ||
▪ | Chuditch (Baron/SundaGas): | |
➢ Now Timor-Leste 2nd largest field, appraisal planned | ||
▪ | Exploration: | |
➢ Eni signed PSC for Block P, plan 3D and drilling |
1, 3
24
1 | Approximations based on latest publicly available information | 2 | Estimated remaining | 2 |
3 | Includes gas equivalents of condensate liquids | 4 | Discovery + prospects based on 2D mapping |
Chuditch Area: Earlier Licence History
▪ ZOCA 91-08 - Sagasco / Petroz (1991 - 1997) | |||
Sikatan-1 | ➢ Sikatan-1, 1994, Dry hole | ||
ZOCA 91-08 | ▪ ZOCA 91-09 - Enterprise (1991 - 2001) | ||
Sagasco | ➢ Farm-in 1996, Shell (operator) and Mitsubishi | ||
ZOCA | ➢ Chuditch-1, 1998, Gas Discovery | ||
(1989 - 2002) | Chuditch-1 | ▪ | ZOCA 91-14 - Enterprise / Nippon (1991 - 1997) |
ZOCA 91-09 | ➢ Nabarlek-1, 1994, Dry hole | ||
➢ Wallaroo-1, 1996, Dry hole | |||
Enterprise (then Shell) | |||
Wallaroo-1 | Australia | ||
Nabarlek-1 | |||
ZOCA 91-14 | |||
Enterprise | |||
3 |
Chuditch Area: Earlier Licence History
▪ ZOCA 91-08 - Sagasco / Petroz (1991 - 1997) | |||||
Sikatan-1 | ➢ Sikatan-1, 1994, Dry hole | ||||
▪ ZOCA 91-09 - Enterprise (1991 - 2001) | |||||
➢ Farm-in 1996, Shell (operator) and Mitsubishi | |||||
JPDA | ➢ Chuditch-1, 1998, Gas Discovery | ||||
(2002 - 2019) | JPDA 06-101(A) | Chuditch-1 | ▪ | ZOCA 91-14 - Enterprise / Nippon (1991 - 1997) | |
➢ Nabarlek-1, 1994, Dry hole | |||||
Minza Oil & Gas | |||||
➢ Wallaroo-1, 1996, Dry hole | |||||
▪ JPDA 06-101(A) - Minza Oil & Gas (2006 - 2013) | |||||
➢ 3D seismic acquired 2012 | |||||
Wallaroo-1 | Australia | ➢ | No wells drilled | ||
Nabarlek-1 | ➢ Exited in 2013 | ||||
4 |
Chuditch Area: Earlier Licence History
▪ ZOCA 91-08 - Sagasco / Petroz (1991 - 1997) | ||||
Sikatan-1 | ➢ Sikatan-1, 1994, Dry hole | |||
TL-SO-19-16 PSC | ▪ ZOCA 91-09 - Enterprise (1991 - 2001) | |||
SundaGas | ➢ Farm-in 1996, Shell (operator) and Mitsubishi | |||
Timor-Leste | ➢ Chuditch-1, 1998, Gas Discovery | |||
(2019 onwards) | Chuditch-1 | ▪ | ZOCA 91-14 - Enterprise / Nippon (1991 - 1997) | |
➢ Nabarlek-1, 1994, Dry hole | ||||
➢ Wallaroo-1, 1996, Dry hole | ||||
▪ JPDA 06-101(A) - Minza Oil & Gas (2006 - 2013) | ||||
➢ 3D seismic acquired 2012 | ||||
Wallaroo-1 | Australia | ➢ | No wells drilled | |
Nabarlek-1 | ➢ Exited in 2013 | |||
▪ JPDA 06-101(A) - SundaGas (2019 onwards) | ||||
5 |
History of SundaGas and Chuditch to date
Maritime Boundaries agreement period | Covid-19 pandemic | |||||||||||||
UNCLOS | Conciliation | Agreement | Treaty | Treaty | No trips possible | |||||||||
ratification | to Timor-Leste | |||||||||||||
compulsory | Begins | reached | signed | |||||||||||
conciliation | ||||||||||||||
requested | ||||||||||||||
Covid-19 cases | ||||||||||||||
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |||||||
Today
2024
SundaGas | JPDA PSC | 1st Timor-Leste | 2nd TL PSC | Chuditch | Commence 3D | Dili | Complete CPR | Drilling | Site | Drill |
activities | application | PSC application, | application | PSC award | seismic work | office | 3D repro | Mgr hired | Survey | Chuditch-2 |
company registered | ||||||||||
Other Timor-Leste | 2 | nd Licence Round | Carnarvon | 2nd Licence Round | 2nd Licence Round |
offshore activities | Launch | drilling | Awards | Offshore PSC signed | |
(Eni) | |||||
6
Chuditch PSC: What has been achieved?
Chuditch Field
- Estimated resources of c.700 Bcf
Dec 2017
Today
Discovered Resources
➢ Chuditch: | Pmean = 1,165 Bcf |
Prospective Resources | |
➢ Chuditch NE: | Pmean = 863 Bcf |
➢ Chuditch SW: | Pmean = 855 Bcf |
➢ Quokka: | Pmean = 410 Bcf |
Maritime boundaries prior to 2019
7
Chuditch-2 Appraisal Well: Plan and Status
▪ Plan to drill in Q4 2024
▪ Appraisal 5.1 km from discovery, in 68m water
▪ 149m gas column predicted (vs 30m at Chuditch-1)▪ Simple vertical well, including DST
▪ Drill team assembled; well planning progressing ▪ Site survey completed
All depths are metres below mean sea level | 8 |
Chuditch NE Prospect 'captured' through Maritime Boundary change
Chuditch NE: |
"the best undrilled |
prospect in Timor-Leste"* |
Chuditch |
Field |
* Andy Butler, April 2024 | 9 |
Example Chuditch Field Development Concept
Chuditch Engineering
Concept (illustrative)
Chuditch
NE
Chuditch
Chuditch SW
Principal
LNG flows
in Asia
Pacific
Domestic & relatively minor LNG flows not shown | 10 |
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Disclaimer
Baron Oil plc published this content on 19 April 2024 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 19 April 2024 09:11:07 UTC.