establishing and running the first master program ......tectono-sedimentary evolution 3d seismic...
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G. Bertotti, Nelson Boniface, Hans de Bresser, Hudson Nkotagu and Frank van Ruitenbeek
Establishing and running the first Master program Petroleum Geology at the University of Dar esSalaam (Tanzania): lessons from the past and plans for the future
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The history: we did it and we did it fastThe “pre-history”
• March 2013: identification mission responding to the request of assistance of the Tanzanian (Union) Minister of Energy and Minerals
• April 2013: Visit of President Kikwete and Minister of Energy and Minerals to the NL
• visit of a delegation from the Zanzibar House of Representatives and several Ministries and regular contacts of the Embassy
• December 2013: establishment and funding of K2K NL unit• February 2014; contacts with UDSM and discussion on K2K project
during NL mission to Tanzania and Zanzibar (with Minister Ploumen)
May 2014• Workshop with most TZ Organizations
UDSM (Geology, Chemistry and Mining Engineering), DIT (Mining Engineering), Nelson Mandela Institute, UDOM (College of Earth Sciences), GST, Mineral resource Institute (Dodoma)
A frank and open discussion
October 2014• Accreditation of the UDSM plan by TUC
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• Management of expectations: Activities are restricted by requirements of funder, money, availability of university teachers
• Finding solutions that fit all: Dutch government, UDSM, NL universities:
• BSc versus MSc programme support• Training of students versus training of staff• Teaching methods versus petroleum geology
• Integrate TZ and International students
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Key points
• All classes given at UDSM (participants invited also from other Institutions)
• Lecturers both from UDSM and NL
• Involving local stakeholders
Pros:Establishment of critical mass of students and scientific staffStrengthening network of TZ and NL scientists – impact on sustainabilityInvolves local stakeholders (companies, universities, government)Students stay close to family an homeCost efficient
Cons:Students get limited exposure to international environment and state of the art facilitiesDifficult to find time for university teachers to teach abroad
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Making it possible
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The official opening
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The official opening
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To work!
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The courses given
Advanced Petroleum GeologyRock Properties, Petrophysics and Well Log Analysis Stratigraphy and SedimentologySeismic Data Acquisition and Processing Gravity, Magnetics and Remote Sensing ,Environmental pollution prevention and controlPetroleum Basin Analysis Seismic data Interpretation Scientific Writing Petroleum Structural Geology Petroleum ProductionPaleontology and PalynologyReservoir diagenesis and quality
light blue for courses given by UDSM
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Excellent results
2
3
4
5
1 2 3 4 5 6 7 8 9 10 11 12 13
Grade Point Average
very good
excellent
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A first (subjective) evaluation
Good news• The participating students are very motivated and have a
strong background• We were all satisfied with the level of the courses• Burocracy, logistics etc have worked (nearly) perfectly
To be improved• Remote supervision and tutoring remains a challenge• Counter-part system did not work as hoped
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• Scientifically challenging topics for the 13 students• Projects to be performed partly in small groups and
partly individually. The common part stimulates synergy and discussion and facilitates (remote) supervision
• co-supervision of TZ and NL researchers• Projects closely linked to Industry (BG, Statoil, Shell,
TOTAL…)• Links with other Universities (Oslo, Aberdeen) and TZ
partners (TPDC, and other) ?
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Sedimentology and structural geology of outcropping analogs(mainly quarries)
Carbonate reefs in the Dar Es Salaam areaMixed siliciclastic-carbonate
Regional seismic linesHydrocarbon seepsBalancing and restoration of sections through faulted basins Mechanic model of a section across the Tanzania marginTectono-sedimentary evolution
3D seismic cubesFault analysis and implications for HC explorationFault analysis and implications for stress and strain field
Other topicsInnovative methods for the determination of rock maturity
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1. Early syn-rift, key for the distribution of source rocks
Walsh et al. 2003
Initial rifting is accommodated by numerous small faults most of which die out within <10Myr
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These basins are small and isolated creating ideal conditions for stratified water columns and anoxic conditions
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Linkage is an important component
Cowie 2005
Is there more?
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Project 1a: evolution of syn-rift fault kinematics
Fault throw analysis along strike and from horizon to horizon provides useful additional structural information.
It helps pinpointing complex histories of fault development and related HC play suggestions
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Faults in Suriname (work by H. de Bresser)
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1b Cooling and strengthening are important:A thermal anomaly at the onset of rifting is common
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2. Passive margins are not so passive
Pz basement & Tr sands
upper Cretaceous marine carbonates
These unconformities hide kms-scale movements during the late syn-rift and early post rift
Combining low-T geochronology anf sedimentology
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Late Triassic to Early Jurassic
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Where did the sands go? How were they transported to the offshore?
Late Jurassic
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For this wee need to go to the subsiding part of the system
Syn-sedimentary, Late Jurassic to Early Cretaceous folding is widespread
Tidlit
Assaka
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The anticlines formed small relief on the sea floor
strong ravinementsurface
Upper Barremian
Lower Aptian
Tamri section
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Jurassic-Cretaceous anticlines
E-W trending depressions and highs control distribution in the continental shelf
Late Jurassic
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E-W structures are key factors controlling entry points
Luber et al 2015
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3 Cheap and fast determinations of paleo-temperatures: spectral thermometry
Determining paleo-temperatures and ages of thermal events is key
SWIR Camera in the field!
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Preliminary regional results are promising!
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The (near) future: good news
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NICHE proposal, new components:
Geothermics
Build on Kenya’s success
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NICHE proposal, new components:
Vocational training
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