copyright 2004 siep b.v. shell exploration & production morocco offshore potential and promises...
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![Page 1: Copyright 2004 SIEP B.V. Shell Exploration & Production Morocco Offshore Potential and Promises John Crowle](https://reader035.vdocuments.us/reader035/viewer/2022081602/551be455550346af588b603d/html5/thumbnails/1.jpg)
Shell Exploration & Production
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Morocco Offshore Potential and Promises
John Crowle
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Contents
1. Morocco – the background to deepwater exploration
2. The ingredients for exploration success Commercial Technology Geology
3. What happens next?
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Morocco - the background to deepwater exploration
History of offshore exploration without commercial development
Unexplored deepwater acreage
Growing industry success in deepwater developments elsewhere
Improved risk reduction tools based on 3D seismic
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N0 100 200 300 km
MoroccoSHELL INTEREST BLOCKS (OPERATOR)
MOROCCO
NON SHELL BLOCKS
AGADIR
RABAT
RECONNAISANCE LICENCES
SPAIN
SHELL INTEREST BLOCKS ( NON OPERATOR)
Rimella
Cap Draa
Shell EP in MoroccoRimella and Cap Draa
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Ingredients for success - Commercial
Straightforward tax/royalty regime
10-year ‘tax holiday’
Clearly defined work programme
Informed, professional and challenging local partnership
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Ingredients for success - Technology
Exploration risk reduction
An understanding of the environmental
sensitivities
Environmentally sensitive, safe drilling operations
Deepwater development skills
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40404444108108 8181
101101
AmplitudeAmplitudemeasurementsmeasurementsAmplitudeAmplitudemeasurementsmeasurements
Technology – seismic attributesTechnology – seismic attributes
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600 m
800 m
1000 m
1200 m
1400 m
1600 m
1800 m
2000 m
2200 m
2400 m
Cognac1978
Bullwinkle1988
Conoco(Julliet)1989
Petrobas(Marlim)
1989
Na Kika2003
Petrobras(Roncador)
1999
Mensa1997
Petrobras(Marlim Sul)
1997
Ursa1999
Ram-Powell1997
Mars1996
Auger1993
Technology - deepwater milestones
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Technology - Na Kika development concept Gulf of Mexico
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Ingredients for success - Geology
A thick sediment pile – up to 10 kilometres
Potential for
Jurassic and Cretaceous source rocks
Cretaceous and Tertiary reservoir rocks
Structural development to create traps – salt
movement
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shallow marine deposits
Channelised fans(West Africa, West of
Shetlands)
Unconfined fans
(North Sea, Brazil)
deep marine sandsdeep marine shales
salt
Confined fans
(Gulf of Mexico)
Geology – reservoir rocks
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5 km
Salt Ridges & Salt Ridges & Mini-Basins Mini-Basins
2 sec
6 sec
4 sec
Inverted Inverted Structures Structures
Inner Diapir TrendInner Diapir Trend
WestWest EastEast
Geology – trapsAgadir - Tarfaya Basin Play Domains
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Geology - Agadir–Tarfaya Basin play domains
Diapirs
Inversion structures
Salt ridges
Toe-Thrust
Unconfined By-Pass Slope
Platform / shelf
Agadir
0 25 50 75 100 km
3D SEISMIC
3D SEISMIC
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Geology - play segments
Salt Ridge Play
Middle Miocene Top
Base Miocene
Base Tertiary
Top Albian
Top Jurassic
?
Salt
Sub-Salt
Truncation ?
Sub-Salt
Truncation ?
?
Salt
Sub-Salt
Truncation ?
NW SE
Sub-Salt
Truncation ?
Salt
2 km
Base Tertiary
Top Jurassic
Base Tertiary
Top Jurassic
Top Basement
Salt
2 km
NW SE
Toe Thrust Play
Salt
Base Tertiary
Top Jurassic
2 km
NW SE
Inverted Structures Play
Base Tertiary
Top Jurassic
Salt
2 km
NW SE
Salt Diapir Play
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Drill potential hub class prospect
DRY
Evaluate remaining exploration
potential and decide whetheror not another hub class
prospectwill be drilled.
HUB SIZE
Appraise and Develop
Re-evaluate remaining exploration
strategy
Evaluate remaining exploration
potential and select most promising
prospect that is either a hub on it’s
own or can help in justifying a cluster development
TOO SMALLFOR HUB
Exploration and Development Strategy
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Morocco – offshore potential and promises
The political will is there
The commercial terms are there
The geology has the right
elements
The seismic has been shot and interpreted
Time to drill