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Collaborating Authors
In the vibrant world of energy education, Felicia Oluwadamilola Olaniran emerges as a guiding force, passionately dedicated to bridging the gap between classrooms and the energy sector. A Geoscience graduate from Olabisi Onabanjo University and an active member of the Society of Petroleum Engineers (SPE) Lagos Section 61, Felicia serves as an Energy4me Ambassador, driving impactful initiatives to ignite curiosity among students. In this episode of Get To Know, 2023 SPE Africa Regional Director Ogee Effiom shares insights from her extensive technical experience in upstream oil and gas management in both Nigeria and the United States. She also discusses achievements and lessons learned as an outgoing director. African oil and gas is increasingly becoming an investment magnet as new discoveries position the continent as a guarantor of energy security to emerging Asian nations and as Africa itself seeks to enter the 21st century.
- Africa > Sub-Saharan Africa (0.40)
- Africa > Nigeria (0.29)
- North America > United States (0.27)
Africa Energy will move ahead with its planned Gazania-1 wildcat well offshore South Africa after securing partner Eco Atlantic's $20 million in capital requirements for its portion of the probe. The well will be drilled in Block 2B. Island Drilling semisubmersible Island Innovator has been contracted for the work and is expected to mobilize from its current location in the North Sea for the 45-day trip to South Africa. The Block 2B joint venture plans to spud the well by October with drilling expected to last 30 days, including a full set of logs if the well is successful. The block has significant contingent and prospective resources in relatively shallow water and contains the A-J1 discovery that flowed light sweet crude oil to surface.
- Africa > South Africa (1.00)
- Europe > United Kingdom > North Sea (0.27)
- Europe > Norway > North Sea (0.27)
- (2 more...)
- Africa > South Africa > South Atlantic Ocean > Orange Basin (0.99)
- Africa > Angola > South Atlantic Ocean > Lower Congo Basin > PSVM Development Area > Block 31 > Venus Field > Venus Well (0.94)
Abstract: The UN Convention on the Law of the Sea 1982 makes provision under article 76 for coastal states to extend their maritime territories, subject to certain rules and constraints, where it can be demonstrated that there is a natural prolongation of the continental margin seaward of the existing 200 nautical mile (M) Exclusive Economic Zone. The rights conferred with the additonal territory are limited to living and non-living resources on and under the seafloor, and do not include conventional fish stocks. Potential hydrocarbon resources in such extensions include conventional oil and gas and also gas hydrate. South Africa's deadline for submission to the Commission on the Limits of the Continental Shelf is 13 May 2009. In response to a Directive from the Minister of Minerals and Energy, a national project was established in April 2003. A preliminary scoping report indicates that there is a good probability of territorial extensions along the prolongation of the east coast Mozambique Ridge and smaller areas off the south and west coasts. Large areas of potential claim have been scoped along the southern extension of the south coast Agulhas Plateau and also along the South West Indian Ridge and Del Cano Rise, adjacent to South Africa's sub-Antarctic Prince Edward islands, but the acceptability of these claims is less certain at present. It should be stressed that it is in the best interest of maritime neighbours to resolve disputes prior to claim submission and to formalise maritime borders, as this will facilitiate harmonising studies and the interpretation of claim parameters across these boundaries. NEPAD and other regional cooperation programmes provide an excellent platform for such inter-African cooperation. INTRODUCTION The United Nations Convention on the Law of the Sea (UNCLOS) 1982 makes provision under Article 76 for coastal States to extend their maritime territories, subject to certain rules and constraints, where it can be demonstrated that there is a natural prolongation of the continental margin seaward of the existing 200 nautical mile (M) Exclusive Economic Zone (EEZ). South Africa became a signatory to UNCLOS on 23 December 1997 and has until 13 May 2009 to submit its claim to the United Nations Commission on the Limits of the Continental Shelf (UN Commission / CLCS). South Africa's maritime territory embraces both the mainland of South Africa and the sub- Antarctic Prince Edward Islands. UNCLOS 1982, Article 76 Article 76 defines the continental shelf as comprising "the sea-bed and subsoil of the submarine areas that extend beyond its territorial sea throughout the natural prolongation of its land territory". The continental margin is defined as comprising "the submerged prolongation of the land mass of the coastal State, and consists of the sea-bed and subsoil of the shelf, the slope and the rise. It does not include the "deep ocean floor with its oceanic ridges" . The terms and formulae in Article 76 that describe the procedures for determining the natural prolongation of the land territory have geomorphological and geological, as well as legal, implications:
- Africa > South Africa (1.00)
- North America > Canada > Prince Edward Island (0.47)
New Insights in the Evaluation of Reserves of Selected wells of the Pletmos Basin Offshore South Africa
Elamri, Samir (1Petroleum Geology Unit, Earth Science Department, University of the Western Cape South Africa) | Opuwari, Mimonitu (1Petroleum Geology Unit, Earth Science Department, University of the Western Cape South Africa)
ABSTRACT The area evaluated has similar structural styles and settings as the producing neighboring fields of F-A and E-M in the adjacent Bredasdorp basin Offshore South Africa. The main objective of this study is to create a 3-D-static model and estimate hydrocarbon reserves. Based on log signatures, petrophysical properties and structural configurations, the reservoirs were divided vertically into three reservoir units in order to be properly modelled in 3-D space. The thicknesses of the layers were determined based on the vertical heterogeneity in the reservoir properties. Facies interpretation was performed based on log signatures, core description and previous geological studies. The volume of clay and porosity was used to classify facies into five units of sand, shaly sand, silt, and clay. From petrophysical interpretation, a synthetic permeability log was generated in the wells which ties closely with core data. The J-function water saturation model was adopted because it produced better results in the clean sandstone sections of the reservoirs. A high uncertainty in the basement formation was observed due to very few wells drilled in the area and fault impact and thus resulted in evaluation of uncertainty of each zone separately. The uncertainty workflow was run using 100 trials and the base case P50 estimated 277 Bcf of Gas from the 1At1.
- Geology > Geological Subdiscipline (0.96)
- Geology > Rock Type > Sedimentary Rock > Clastic Rock (0.93)
- Geophysics > Borehole Geophysics (0.69)
- Geophysics > Seismic Surveying (0.49)
- Africa > South Africa > Pletmos Basin (0.99)
- Africa > South Africa > Outeniqua Basin (0.99)
- Africa > South Africa > Indian Ocean > Bredasdorp Basin (0.99)
Abstract: This paper will focus on the vast deepwater areas of offshore South Africa; areas which require a challenging and expensive exploration effort. Latest exploration activities of Offshore South Africa, combined with a bit of exploration history will be discussed. This would then be compared with worldwide trends concerning deepwater exploration. Africa's important role within this new drive to exploit the world's deepwater hydrocarbon resources is also emphasized. General geology of the offshore basins will briefly be summarized, and the talk will coclude with the latest resource estimates of South Africa's deepwater areas. INTRODUCTION During the past 30 years, exploration of the Mesozoic basins of offshore South Africa was generally restricted landwards of the 200m isobath, with only a few wells exploring the Orange Basin on the West Coast in water depths deeper than 400m. Off the South Coast these rigs could only manage in water depths of up to 300m maximum. The strong Agulhas current and adverse weather conditions imposed restrictions on the use of the existing semisubmersibles. Exploration history The first offshore well in 1968 discovered the Superior gas field in the Pletmos Basin, which is a sub-basin of the Outeniqua Basin off the South Coast. Subsequently, most of the offshore exploration was then focussed in the Bredasdorp Basin, which led to production of the F-A, EM and satellite gas fields in 1992, which have been feeding the synfuel plant at Mossel Bay. First oil production from the Oribi oilfield followed in May 1997, a deep marine basin floor channel and fan complex (bff complex), and production was increased when the Sable oil, gas and condensate field came onstream in mid-2003. The Orange Basin is defined by the extent of a sedimentary wedge that occupies about 150 000 km off the southwestern coast of Africa, and is more than 8 km thick in places. Although the basin is sparsely drilled with only 40 wells, most of which tested the shallow water areas, results thus far have been extremely encouraging. Two gas fields (Ibhubesi in South Africa, and Kudu in Namibia) with multi-TCF potential have been discovered within the younger geology, while the A-J1 well yielded an oil discovery in some of the oldest sedimentary fill. The Ibhubesi gas field has recently been defined by Forest Exploration International, through appraisal drilling in the area of the original A-K1 discovery well. The tested wells in this field yielded a high combined flow rate of dry gas and condensate. Analysis of 2D and 3D seismic surveys in the area has defined many new prospects and justifies the extension of this play for some distance to the north. The Durban Basin remains under-explored with only 4 wells testing the offshore areas close to shore, all of which were non-commercial. World trends Studies of oil discoveries made during the nineties indicate that giant oil discoveries are more frequently found in the deepwater areas of the world compared with the shallower water regions.
- Africa > South Africa > Indian Ocean (0.69)
- Africa > South Africa > North Cape Province (0.54)
- Geophysics > Seismic Surveying > Seismic Processing (0.94)
- Geophysics > Seismic Surveying > Surface Seismic Acquisition (0.69)
- Africa > South Africa > South Atlantic Ocean > Orange Basin (0.99)
- Africa > South Africa > Pletmos Basin (0.99)
- Africa > South Africa > Outeniqua Basin (0.99)
- (10 more...)
- Reservoir Description and Dynamics > Reservoir Characterization > Seismic processing and interpretation (1.00)
- Reservoir Description and Dynamics > Reservoir Characterization > Exploration, development, structural geology (1.00)
- Management > Strategic Planning and Management > Exploration and appraisal strategies (1.00)