Tanzania Petroleum Development Corporation

Dar es Salaam, Tanzania

Tanzania Petroleum Development Corporation

Dar es Salaam, Tanzania
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Mtabazi E.,University of Dar es Salaam | Boniface N.,University of Dar es Salaam | Marobhe I.,University of Dar es Salaam | Andresen A.,University of Oslo | And 2 more authors.
1st EAGE Eastern Africa Petroleum Geoscience Forum - Sharing Lessons Learned: What's Next? | Year: 2015

Our new field structural observations, digital elevation modal (DEM), seismic and magnetic data from the Triassic-Jurassic Mandawa Basin of coastal Tanzania demonstrate tectonic results of Gondwana rifting and dextral strike slip movements associated with the rifting and drifting of Madagascar from East Africa in Jurassic time. The results reveal two major deformation events, in the history of Mandawa Basin formation, named D1 and D2 in this study. The D1 event generated the NNW-SSE trending deep-seated normal faults, and T-fractures. The geometry of these structures suggests that, the ENE-WSW extensional movements, probably associated with the rifting of Gondwanaland during Permo-Triassic time, generated them. The D2 event was the most important deformation episode, which is widely distributed on regional scale as well as on outcrop scale. The NNE-SSW, NNW-SSE and ENE-WSW Riedal shears, dextral strike slip faults, sinistral faults, normal faults and T-fractures characterize D2 event. The D2 event is probably related with the NNW dextral shear zone with NW-SE extensional movements, probably generated during the drifting of Madagascar along the Davie transform fault during the Jurassic time. The geometry of Mandawa Basin suggests pull-apart origin, generated by transtensional event, followed by successful reactivations.

Jimenez Berrocoso A.,Repsol | Huber B.T.,Smithsonian Institution | MacLeod K.G.,University of Missouri | Petrizzo M.R.,University of Milan | And 11 more authors.
Journal of African Earth Sciences | Year: 2015

The 2009 Tanzania Drilling Project (TDP) expedition to southeastern Tanzania cored a total of 572.3. m of sediments at six new mid-Cretaceous to mid-Paleocene boreholes (TDP Sites 36, 37, 38, 39, 40A, 40B). Added to the sites drilled in 2007 and 2008, the new boreholes confirm the common excellent preservation of planktonic and benthic foraminifera and calcareous nannofossils from core samples that will be used for biostratigraphy, evolutionary studies, paleoceanography and climatic reconstructions from the Tanzanian margin, with implications elsewhere. The new sites verify the presence of a relatively expanded Upper Cretaceous succession in the region that has allowed a new stratigraphic unit, named here as the Lindi Formation (Fm), to be formally defined. The Lindi Fm (upper Albian to Coniacian), extending ~120. km between Kilwa and Lindi, comprises a 335-m-thick, outer-shelf to upper-slope unit, consisting of dark gray claystone and siltstone interbeds, common finely-laminated intervals, minor cm-thick sandstones and up to 2.6% organic carbon in the Turonian. A subsurface, composite stratotype section is proposed for the Lindi Fm, with a gradational top boundary with the overlying Nangurukuru Fm (Santonian to Maastrichtian) and a sharp bottom contact with underlying upper Albian sandstones.The section cored at TDP Sites 36 and 38 belongs to the Lindi Fm and are of lower to middle Turonian age (planktonic foraminifera Whiteinella archaeocretacea to Helvetoglobotruncana helvetica Zones and nannofossils subzones UC6b±UC7). The lower portion of TDP Site 39 (uppermost part of the Lindi Fm) is assigned to the lower to upper Coniacian (planktonic foraminifera Dicarinella concavata Zone and nannofossils zone UC 10), while the remaining part of this site is attributed to the Coniacian-Santonian transition and younger Santonian (planktonic foraminifera D. asymetrica Zone and upper part of nannofossils zone UC10). TDP Site 37 recovered relatively expanded (150m thick), monotonous calcareous claystones from the lower to upper Maastrichtian (planktonic foraminifera Pseudoguembelina palpebra to Abathomphalus mayaroensis Zones and nannofossils zones UC19 to UC20aTP) that were separated by a hiatus and/or a faulted contact from overlying brecciated carbonates of the Selandian (middle Paleocene: PF Zone P3 and nannofossil zone NP5). The lower portion of TDP Sites 40A and 40B recovered sandstones and conglomerates barren of microfossils. Their overlying parts were assigned to incomplete sections of the nannofossil zones NC6A to NC8 (uppermost Barremian to lower Albian). Benthic foraminiferal assemblages allowed the Barremian to lower Aptian to be identified in TDP Sites 40A and 40B, while the upper Aptian to middle Albian (Hedbergella trocoidea to Ticinella primula Zones) were assigned using planktonic foraminifera. Cores recovered at TDP 39 (Coniacian-Santonian) and at TDP Sites 40A and 40B (Barremian-middle Albian) represent the first time that these two intervals have been continuously cored and publicly documented in Tanzania.Bulk sediment isotope records generated for the new sites show lower δ18Ocarb values in the Turonian and Santonian (~-3.5‰ to -5‰) than in the Maastrichtian (~-3‰), a situation consistent with extreme global warmth in the older intervals and cooling toward the end of the Cretaceous. Also, similar to Turonian sites from previous TDP expeditions, a negative δ13Corg excursion was detected across the W. archaeocretacea-H. helvetica boundary of TDP Site 36 (close to, but above, the Cenomanian-Turonian boundary). This excursion probably responded to local processes in the region, but it is unknown whether they were related to the recovery phase from Ocean Anoxic Event 2. © 2014 Elsevier Ltd.

Jimenez Berrocoso A.,University of Missouri | MacLeod K.G.,University of Missouri | Huber B.T.,Smithsonian Institution | Lees J.A.,University College London | And 5 more authors.
Journal of African Earth Sciences | Year: 2010

The 2007 drilling season by the Tanzania drilling project (TDP) reveals a much more expanded Upper Cretaceous sequence than was recognized previously in the Lindi region of southern Tanzania. This TDP expedition targeted recovery of excellently preserved microfossils (foraminifera and calcareous nannofossils) for Late Cretaceous paleoclimatic, paleoceanographic and biostratigraphic studies. A total of 501.17. m of core was drilled at six Upper Cretaceous sites (TDP Sites 21, 22, 23, 24, 24B and 26) and a thin Miocene-Pleistocene section (TDP Site 25). Microfossil preservation at all these sites is good to excellent, with foraminifera often showing glassy shells and consistently good preservation of small and delicate nannofossil taxa. In addition to adding to our knowledge of the subsurface geology, new surface exposures were mapped and the geological map of the region is revised herein. TDP Sites 24, 24B and 26 collectively span the upper Albian to lower-middle Turonian (planktonic foraminiferal Planomalina buxtorfi-Whiteinella archaeocretacea Zones and calcareous nannofossil zones UC0a-UC8a). The bottom of TDP Site 21 is barren, but the rest of the section represents the uppermost Cenomanian-Coniacian (W. archaeocretacea-Dicarinella concavata Zones and nannofossil zones UC5c-UC10). Bulk organic δ13C data suggest recovery of part of Ocean Anoxic Event 2 (OAE2) from these four sites. In the upper part of this interval, the lower Turonian nannofossil zones UC6a-7 are characterized by a low-diversity nannoflora that may be related to OAE2 surface-water conditions. TDP Site 22 presents a 122-m-thick, lower-middle Turonian (W. archaeocretacea-Helvetoglobotruncana helvetica Zones) sequence that includes the nannofossil zones UC6a(-7?), but invariable isotopic curves. Further, a lower to upper Campanian (Globotruncana ventricosa-Radotruncana calcarata Zones and nannofossil subzones UC15bTP-UC15dTP) succession was drilled at TDP Site 23. Lithologies of the new sites include thin units of gray, medium to coarse sandstones, separating much thicker intervals of dark claystones with organic-rich laminated parts, irregular silty to fine sandstone partings, and rare inoceramid and ammonite debris. These lithofacies are interpreted to have been deposited in outer shelf and upper slope settings and indicate relatively stable sedimentary conditions during most of the Late Cretaceous on the Tanzanian margin. © 2009 Elsevier Ltd.

News Article | January 29, 2016
Site: news.yahoo.com

A Tanzanian engineer walks at the Songas gas processing plant in Songo Songo Island, 225 km south of the Tanzanian capital [Dar es Salaam] and 25 km off the coast of Tanzania in a file photo - RTXN9ZD More DAR ES SALAAM (Reuters) - Tanzania said on Friday it had finalised a land acquisition for the site of a planned liquefied natural gas (LNG) plant and was now working to compensate and resettle villagers to move forward on a long-delayed project. Tanzania's natural gas reserves are estimated at more than 55 trillion cubic feet (tcf) and the central bank believes 2 percentage points would be added to annual economic growth of 7 percent simply by starting work on the huge plant that would draw in billions of dollars of investment. BG Group, being acquired by Royal Dutch Shell, along with Statoil, Exxon Mobil and Ophir Energy plan to build the onshore LNG export terminal in partnership with the state-run Tanzania Petroleum Development Corporation (TPDC). They aim to start it up in the early 2020s. But their final investment decision has in part been held up by delays in finalising issues related to the site. "After securing the title deed, the law requires the owner to pay compensation to the relevant parties based on a valuation done by the chief government valuer," TPDC said in a statement. TPDC now owns title deed for some 2,071.705 hectares of land that have been set aside for the construction of the planned two-train LNG terminal at Likong’o village in the southern Tanzanian town of Lindi, which is located close to large offshore gas finds. Another 17,000 hectares of land around the site for the proposed LNG terminal has been allocated for an industrial park. The land was bought from large landowners and some individual villagers. Tanzania's new president, John Magufuli, has promised more urgency in decision-making, responding to a frequent complaint from businesses. One example has been delays in finalising a site for the multi-billion dollar LNG plant that will exploit huge offshore gas finds. Oil companies were unable to gain access to the site until the land purchase, analysts say. "The next key thing to watch is how quickly a host government agreement is executed between the Tanzanian government, TPDC and IOCs (international oil companies)," Ahmed Salim, senior associate at consultancy Teneo Intelligence, said in a note to clients. East Africa is a new hotspot in hydrocarbon exploration after substantial deposits of crude oil were found in Uganda and major gas reserves discovered in Tanzania and Mozambique. Mozambique's plans to build an LNG plant have moved more swiftly. With other LNG projects moving ahead around the world, the best deals for long term gas sales contracts will likely be secured by those who come on stream first, analysts say.

News Article | August 22, 2016
Site: news.yahoo.com

DAR ES SALAAM (Reuters) - Tanzanian president John Magufuli ordered officials on Monday to speed up long-delayed work on a planned liquefied natural gas (LNG) plant, saying implementation of the project had taken too long. BG Group, recently acquired by Royal Dutch Shell, alongside Statoil, Exxon Mobil and Ophir Energy, plan to build a $30 billion-onshore LNG export terminal in partnership with the state-run Tanzania Petroleum Development Corporation (TPDC) by the early 2020s. But a final investment decision has been held up by government delays in finalising issues relating to acquisition of land at the site and establishing a legal framework for the nascent hydrocarbon industry. "I want to see this plant being built, we are taking too long. Sort out all the remaining issues so investors can start construction work immediately," the presidency quoted Magufuli as saying in a statement. Magufuli, a reformist who took office in November, has sacked several senior officials for graft and cut spending he deemed wasteful, such as curbing foreign travel by public officials. The president's office said Magufuli issued the instructions for the LNG project to be fast-tracked during talks with Oystein Michelsen, Statoil's Tanzania country manager, and senior Tanzanian government energy officials. The Tanzanian presidency did not give the construction schedule for the project, but said once completed the LNG plant would have an expected economic lifespan of more than 40 years. The government said it has acquired over 2,000 hectares of land for the construction of the planned two-train LNG terminal at Likong'o village in the southern Tanzanian town of Lindi. Tanzania discovered an additional 2.17 trillion cubic feet of possible natural gas deposits in February, raising the east African nation's total estimated recoverable natural gas reserves to more than 57 trillion cubic feet. East Africa is a new hotspot in hydrocarbon exploration after substantial deposits of crude oil were found in Uganda and major gas reserves discovered in Tanzania and Mozambique.

Jimenez Berrocoso A.,University of Manchester | Huber B.T.,Smithsonian Institution | MacLeod K.G.,University of Missouri | Petrizzo M.R.,University of Milan | And 13 more authors.
Journal of African Earth Sciences | Year: 2012

The 2008 Tanzania Drilling Project (TDP) expedition recovered common planktonic foraminifera (PF), calcareous nannofossils (CN) and calcareous dinoflagellates with extraordinary shell preservation at multiple Cenomanian-Campanian sites that will be used for paleoclimatic, paleoceanographic, and biostratigraphic studies. New cores confirm the existence of a more expanded and continuous Upper Cretaceous sequence than had previously been documented in the Lindi and Kilwa regions of southeastern coastal Tanzania. This TDP expedition cored 684.02. m at eight Upper Cretaceous sites (TDP Sites 28-35) and a thin Paleocene section (TDP Site 27).TDP Sites 29, 30, 31 and 34 together span the lowermost Turonian to Coniacian (PF Whiteinella archaeocretacea to Dicarinella concavata Zones and CN Zones UC6a-9b), with TDP Site 31 being the most biostratigraphically complete Turonian section found during TDP drilling. A discontinuous section from the Santonian-upper Campanian (PF D. asymetrica to Radotruncana calcarata Zones and CN Zones UC12-16) was collectively recovered at TDP Sites 28, 32 and 35, while thin sequences of the lower Cenomanian (PF Thalmanninella globotruncanoides Zone and CN subzones UC3a-b) and middle Paleocene (Selandian; PF Zone P3a and CN Zone NP5) were cored in TDP Sites 33 and 27, respectively. Records of δ 13C org and δ 13C carb from bulk sediments generated for all the Cretaceous sites show largely stable values through the sections. Only a few parallel δ 13C org and δ 13C carb shifts have been found and they are interpreted to reflect local processes. The δ 18O carb record, however, is consistent with Late Cretaceous cooling trends from the Turonian into the Campanian. Lithologies of these sites include thick intervals of claystones and siltstones with locally abundant, finely-laminated fabrics, irregular occurrences of thin sandstone layers, and sporadic bioclastic debris (e.g., inoceramids, ammonites). Minor lithologies represent much thinner units of up to medium-grained, massive sandstones. The %CaCO 3 (~5-40%) and %C org (~0.1-2%) are variable, with the highest %CaCO 3 in the lower Campanian and the highest %C org in the Turonian. Lithofacies analysis suggests that deposition of these sediments occurred in outer shelf-upper slope, a setting that agrees well with inferences from benthic foraminifera and calcareous dinoflagellates. © 2012 Elsevier Ltd.

Pearson P.N.,University of Cardiff | Hudson W.,Tanzania Petroleum Development Corporation
Scientific Drilling | Year: 2014

We are currently developing a proposal for a new International Continental Scientific Drilling Program (ICDP) project to recover a stratigraphic and paleoclimatic record from the full succession of Eocene hemipelagic sediments that are now exposed on land in southern Tanzania. Funding for a workshop was provided by ICDP, and the project was advertised in the normal way. A group of about 30 delegates assembled in Dar-es-Salaam for 3 intensive days of discussion, project development, and proposal writing. The event was hosted by the Tanzania Petroleum Development Corporation (TPDC) and was attended by several geologists, geochemists, geophysicists, and micropaleontologists from TPDC and the University of Dar-es-Salaam. International delegates were from Canada, Germany, India, Ireland, Italy, the Netherlands, United Kingdom, and United States (and we also have project partners from Australia, Belgium, and Sweden who were not able to attend). Some of the scientists are veterans of previous scientific drilling in the area, but over half are new on the scene, mostly having been attracted by Tanzania's reputation for world-class paleoclimate archives. Here we outline the broad aims of the proposed drilling and give a flavor of the discussions and the way our proposal developed during the workshop. A video of the workshop with an introduction to the scientific goals and interviews of many of the participants is available at http://vimeo.com/107911777.

Hudson W.E.,Tanzania Petroleum Development Corporation | Nicholas C.J.,Trinity College Dublin
Journal of African Earth Sciences | Year: 2014

This paper defines the Pindiro Group of the Mandawa Basin, southern coastal Tanzania based on studies conducted between 2006 and 2009 with the objective of understanding the evolution of this basin. This work draws upon field data, hydrocarbon exploration data, unconventional literature, and the scant published materials available. The paper focuses on the evolution, depositional environments, and definition of the lowermost sedimentary package, which overlies unconformably the metamorphic basement of Precambrian age. The package is described here as the Pindiro Group and it forms the basal group of the Mandawa Basin stratigraphy.The Pindiro Group sediments form part of the synrift sequences deposited during the initial stages of the rifting of Madagascar from East Africa. The Group comprises three formations, defined here in stratigraphic order from older to younger: the Mbuo, Nondwa and Mihambia Formations. Litho- and biofacies analyses from exploration wells suggest that Mbuo sediments were deposited in alluvial, fluvial, and lacustrine environments. The Nondwa Formation, which is principally an evaporitic formation, formed under a restricted marine environment. Palynological species recovered from the Nondwa Formation suggest Late Triassic to Early Jurassic age. The Mihambia Formation comprises sediments that indicate deposition in a shallow and marginal marine environment.The litho-biofacies of the Pindiro Group suggest various depositional environments, from lacustrine, alluvial, fluvial, deltaic, and restricted marine to shallow marine. © 2014 Elsevier Ltd.

Komba K.K.,Tanzania Petroleum Development Corporation | Mataragio J.M.,Tanzania Petroleum Development Corporation | Maduhu S.M.,Tanzania Petroleum Development Corporation | Nyalusi S.Z.N.,Tanzania Petroleum Development Corporation
1st EAGE Eastern Africa Petroleum Geoscience Forum - Sharing Lessons Learned: What's Next? | Year: 2015

Oil and gas has been discovered in the East African Rift System where sediment deposition and its architecture evolved during Miocene. Tanzania has yet to discover oil considering presence of rift system compared to Uganda in the Albertine Graben and Kenya in Turkana valley.Tanzania is intending to work in the Eyasi-Wembere depression where limited geological and geophysical information has been established. Due to lack or limited data in the area of interest, acquisition of Airborne Gravity Gradiomentry survey will be applied as it is quick and affordable but will effectively provide a workflow for future follow-up.

Komba K.K.,Tanzania Petroleum Development Corporation | Rutta I.R.,Tanzania Petroleum Development Corporation | Nyalusi S.Z.N.,Tanzania Petroleum Development Corporation
1st EAGE Eastern Africa Petroleum Geoscience Forum - Sharing Lessons Learned: What's Next? | Year: 2015

Five phases of exploration history have evolved in Tanzania since in the 1950s. Phase One (1952-1964) had BP and Shell companies conducted exploration in coastal basins and the Islands. Extensive geological work was conducted including drilling of more than 100 stratigraphic shallow boreholes, gravity, aeromagnetic, seismic reflection and refraction surveys. Four wildcats were drilled, one each on Zanzibar, Pemba, and Mafia Islands and in the Mandawa Salt Basin. The second Phase (1969-1979) is associated with large regional, on and offshore, seismic surveys were conducted. During that period three onshore and two offshore wells, including the significant gas discovery at Songo Songo in 1974 were drilled. Third Phase (1980-1991) recognized drilling of more wells including the Mnazi bay gas discovery well as a result of good oil price. Fourth phase (1992-2002) recorded low level of exploration activities. The current Phase V (2005 to 2015) has registered extensive geophysical surveys to include 2D and 3D marine seismic surveys. About 27 deep sea wells among with the appraisal wells were also drilled. Offshore discoveries encountered natural gas amounting to about 47.08TCF on the mean side and 8TCF on-shore. This indicates gas already been discovered in Tanzania to be approximately 55.08TCF to date.

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