Academic literature on the topic 'Petroleum - South Africa, Bredasdorp'
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Journal articles on the topic "Petroleum - South Africa, Bredasdorp"
Baiyegunhi, Temitope Love, Kuiwu Liu, Oswald Gwavava, and Christopher Baiyegunhi. "Petrography and Tectonic Provenance of the Cretaceous Sandstones of the Bredasdorp Basin, off the South Coast of South Africa: Evidence from Framework Grain Modes." Geosciences 10, no. 9 (August 28, 2020): 340. http://dx.doi.org/10.3390/geosciences10090340.
Full textBaiyegunhi, Temitope Love, Kuiwu Liu, Oswald Gwavava, Nicola Wagner, and Christopher Baiyegunhi. "Geochemical Evaluation of the Cretaceous Mudrocks and Sandstones (Wackes) in the Southern Bredasdorp Basin, Offshore South Africa: Implications for Hydrocarbon Potential." Minerals 10, no. 7 (June 30, 2020): 595. http://dx.doi.org/10.3390/min10070595.
Full textBaiyegunhi, Temitope Love, Kuiwu Liu, Oswald Gwavava, and Christopher Baiyegunhi. "Textural characteristics, mode of transportation and depositional environment of the Cretaceous sandstone in the Bredasdorp Basin, off the south coast of South Africa: Evidence from grain size analysis." Open Geosciences 12, no. 1 (November 28, 2020): 1512–32. http://dx.doi.org/10.1515/geo-2020-0135.
Full textNORDENSTAM, B. "TWO NEW SPECIES OF OSTEOSPERMUM (COMPOSITAE–CALENDULEAE) FROM SOUTHWESTERN CAPE PROVINCE, SOUTH AFRICA." Edinburgh Journal of Botany 60, no. 3 (November 2003): 259–65. http://dx.doi.org/10.1017/s0960428603000234.
Full textGalley, C. A., and H. P. Linder. "New species and taxonomic changes within Pentaschistis (Danthonioideae, Poaceae) from Western Cape, South Africa." Bothalia 36, no. 2 (August 21, 2006): 157–62. http://dx.doi.org/10.4102/abc.v36i2.354.
Full textManning, J. C., and P. Goldblatt. "Three new species of Tritoniopsis (Iridaceae: Crocoideae) from the Cape Region of South Africa." Bothalia 31, no. 2 (September 17, 2001): 175–81. http://dx.doi.org/10.4102/abc.v31i2.516.
Full textOpuwari, Mimonitu, and Nehemiah Dominick. "Sandstone reservoir zonation of the north-western Bredasdorp Basin South Africa using core data." Journal of Applied Geophysics 193 (October 2021): 104425. http://dx.doi.org/10.1016/j.jappgeo.2021.104425.
Full textRamiah, Kalidhasen, Kaushalendra B. Trivedi, and Mimonitu Opuwari. "A 2D geomechanical model of an offshore gas field in the Bredasdorp Basin, South Africa." Journal of Petroleum Exploration and Production Technology 9, no. 1 (August 2, 2018): 207–22. http://dx.doi.org/10.1007/s13202-018-0526-4.
Full textOpuwari, Mimonitu, Moses Magoba, Nehemiah Dominick, and Nicolas Waldmann. "Delineation of Sandstone Reservoir Flow Zones in the Central Bredasdorp Basin, South Africa, Using Core Samples." Natural Resources Research 30, no. 5 (May 31, 2021): 3385–406. http://dx.doi.org/10.1007/s11053-021-09885-7.
Full textMagoba, Moses, and Mimonitu Opuwari. "Petrophysical interpretation and fluid substitution modelling of the upper shallow marine sandstone reservoirs in the Bredasdorp Basin, offshore South Africa." Journal of Petroleum Exploration and Production Technology 10, no. 2 (November 7, 2019): 783–803. http://dx.doi.org/10.1007/s13202-019-00796-1.
Full textDissertations / Theses on the topic "Petroleum - South Africa, Bredasdorp"
Olajide, Oluseyi. "The petrophysical analysis and evaluation of hydrocarbon potential of sandstone units in the Bredasdorp Central Basin." Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_9559_1181561577.
Full textThis research was aimed at employing the broad use of petrophysical analysis and reservoir modelling techniques to explore the petroleum resources in the sandstone units of deep marine play in the Bredasdorp Basin.
Davies, Christopher Paul Norman, A. Rozendaal, and B. V. Burger. "Hydrocarbon evolution of the Bredasdorp Basin, offshore South Africa : from source to reservoir." Thesis, Stellenbosch : University of Stellenbosch, 1997. http://hdl.handle.net/10019.1/4936.
Full text1123 leaves printed on single pages, preliminary pages and numbered pages 1-286. Includes bibliography, list of figures and tables and explanation of abbreviations used.
Digitized at 600 dpi grayscale to pdf format (OCR), using a Bizhub 250 Konica Minolta Scanner.
ENGLISH ABSTRACT: This first comprehensive study of the petroleum geochemistry of the Bredasdorp Basin, and the adjacent Southern Outeniqua Basin, documents the characteristic large number of hydrocarbon shows and the four regionally distinctive marine source rocks. Detailed correlation of reservoired hydrocarbons with source rock bitumens shows that two source rocks have expelled oil in commercial quantities and two others have expelled commercial quantities of wet gas/condensate. In contrast with earlier studies which indicated that thermal 'gradualism' prevailed, this study indicates that the post-rift thermal history of the basin is very complex. Post-rift cool-down is punctuated by periods of rapidly increasing heat flow resulting in much of the maturation being localised in time. These periods of increased heating coincide with regional plate tectonism. The associated thermal uplift and downwarp effects govern the periods of trap formation and control the hydrocarbon migration direction. Migration distances of these hydrocarbons are described and show inter alia that oil migrates no more than -7-10 km but gas migrates regionally. Two regional episodes of meteoric water flushing reduce sandstone cementation in palaeo-highs forming potential reservoirs at specific times. The unusually low salinity of remnants of this water in some sandstones help characterise these two main migration conduits. A highly detailed hydrocarbon correlation scheme derived from gas, light oil and biomarker data has been established which differentiates products of the four active source rocks and helps characterise the oil-oil, oil-source and source-source pairs. It is evident from these correlations that two periods of migration and reservoiring occurred at 50-60 Ma and 0-10 Ma. As a result, source-reservoir plays which characterise certain areas of the basin as predominantly oil or gas prone can be described. These correlations also highlight areas where mixtures of hydrocarbons are common and where some of the early reservoired oil has been displaced to new locations, constituting potential new exploration plays. Source rocks for some of the analysed hydrocarbons have yet to be found and may not even have been drilled to date. One such source rock appears to be located in the Southern Outeniqua Basin, making that area a potential target for further exploration. This study resolved the common heritage of the source rocks and reservoir sandstones which form part of the Outeniqua petroleum system. The hydrocarbon volumes available to this system show that by world standards it is indeed significant.
AFRIKAANSE OPSOMMING: Die groot aantal koolwaterstof voorkomste asook vier streekskenmerkende mariene brongesteentes word in hierdie eerste omvattende studie van die petroleumgeochemie van die Bredasdorp-kom en die aangrensende Suidelike Outeniqua-kom saamgevat. Gedetaileerde korrelasies van die opgegaarde koolwaterstowwe met brongesteente bitumen, dui daarop dat twee van die vier geidentifiseerde brongesteentes olie in kommersiele hoeveelhede uitgeset het. Die ander twee het kommersiele hoeveelhede nat gas-kondensaat uitgeset. In teenstelling met vroeer studies wat daarop gedui het dat termale 'gradualisme' voorgekom het, dui hierdie studie daarop dat die na-riftermale geskiedenis van die kom baie meer kompleks is. Verskeie periodes van versnelde toename in hittevloei het voorgekom in die na-rifse verkoeling. Dit het daartoe gelei dat veroudering plaaslik binne 'n beperkte tydsverloop plaasvind. Hierdie periodes van hittetoename stem ooreen met die regionale plaattektoniek. Die geassosieerde termiese opheffing en afwaartse vervormingseffek, beheer die totstandkoming van opvanggebiede en die migrasierigting van die koolwaterstowwe. Migrasie-afstande van die koolwaterstowwe word bespreek en wys inter alia daarop dat olie nie verder as -7-10 km beweeg nie, maar gasmigrasie vind regionaal plaas. Twee kort episodes van meteoriese wateruitsetting, het sandsteensementasie in palaeohoogsliggende gebiede verminder wat potensiele reservoirs gevorm het op spesifieke tye. Die ongewone lae soutvlakte van oorblyfsels van die water in sekere sandstene help om die twee vernaamste migrasieroetes te kenmerk. 'n Hoogs omvattende koolwaterstof-korrelasieskema wat van gas, ligte olie en biomerkerdata verkry is, is opgestel. Die skema het onderskei tussen produkte van die vier aktiewe brongesteentes en help om die olie-olie, olie-bron en bron-bron pare te karakteriseer. Dit is duidelik van die korrelasies dat twee periodes van migrasie en opgaring plaasgevind het ongeveer teen -50-60 Ma en 0-10 Ma. Gevolglik kan bronreservoir omskrywings wat sekere dele van die kom karakteriseer as grotendeels olie of gas-ontvanklik beskryf word. Hierdie korrelasies beklemtoon ook areas waar mengsels van koolwaterstowwe algemeen voorkom en waar sekere van die vroeer opgegaarde olie verplaas is na nuwe lokaliteite, wat nuwe eksplorasieteikens daarstel. Brongesteentes vir sekere van die ge-analiseerde koolwaterstowwe, moet nog gevind word en is tot op hede nog nie raakgeboor nie. Een so 'n brongesteente kom voor in die Suidelike Outeniqua-kom, wat daardie area 'n potenslele teiken vir verdere eksplorasie maak. Die studie het die gesamentlike oorsprong van die brongesteente en reservoirsandsteen, wat deel is van die Outeniqua Petroleumsisteem, geidentifseer. Die koolwaterstofvolumes wat beskikbaar is vir die sisteem wys dat, gemeet teen wêreldstandaarde, dit wel beduidend is.
Sonibare, Wasiu Adedayo. "Structure and evolution of basin and petroleum systems within a transformrelated passive margin setting : data-based insights from crust-scale 3D modelling of the Western Bredasdorp Basin, offshore South Africa." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96832.
Full textENGLISH ABSTRACT: This study investigates the crustal structure, and assesses the qualitative and quantitative impacts of crust-mantle dynamics on subsidence pattern, past and present-day thermal field and petroleum system evolution at the southern South African continental margin through the application of a multi-disciplinary and multi-scale geo-modelling procedure involving both conceptual and numerical approaches. The modelling procedure becomes particularly important as this margin documents a complex interaction of extension and strike-slip tectonics during its Mesozoic continental rifting processes. Located on the southern shelf of South Africa, the Western Bredasdorp Basin (WBB) constitutes the focus of this study and represents the western section of the larger Bredasdorp sub-basin, which is the westernmost of the southern offshore sub-basins. To understand the margin with respect to its present-day structure, isostatic state and thermal field, a combined approach of isostatic, 3D gravity and 3D thermal modelling was performed by integrating potential field, seismic and well data. Complimenting the resulting configuration and thermal field of the latter by measured present-day temperature, vitrinite reflectance and source potential data, basin-scale burial and thermal history and timing of source rock maturation, petroleum generation, expulsion, migration and accumulation were forwardly simulated using a 3D basin modelling technique. This hierarchical modelling workflow enables geologic assumptions and their associated uncertainties to be well constrained and better quantified, particularly in three dimensions. At present-day, the deep crust of the WBB is characterised by a tripartite density structure (i.e. prerift metasediments underlain by upper and lower crustal domains) depicting a strong thinning that is restricted to a narrow E-W striking zone. The configuration of the radiogenic crystalline crust as well as the conductivity contrasts between the deep crust and the shallow sedimentary cover significantly control the present-day thermal field of the study area. In all respects, this present-day configuration reflects typical characteristics of basin evolution in a strike-slip setting. For instance, the orientations of the deep crust and fault-controlled basin-fill are spatially inconsistent, thereby indicating different extension kinematics typical of transtensional pull-apart mechanisms. As such, syn-rift subsidence is quite rapid and short-lived, and isostatic equilibrium is not achieved, particularly at the Moho level. Accompanied syn-rift rapid subsidence and a heat flow peak led to petroleum preservation in the basin since the Early Cretaceous. Two additional post-rift thermal anomalies related to the Late Cretaceous hotspot mechanism and Miocene margin uplift in Southern Africa succeeded the syn-rift control on maturation. This thermal maturity of the five mature source rocks culminated in four main generation and three main accumulation phases which characterise the total petroleum systems of the WBB. The Campanian, Eocene and Miocene uplift scenarios episodically halted source maturation and caused tertiary migration of previously trapped petroleum. Petroleum loss related to the spill point of each trap configuration additionally occurs during the Late Cretaceous-Paleocene and Oligocene-Early Miocene. The timing and extent of migration dynamics are most sensitive to the geological scenario that combined faulting, intrusive seal bypass system and facies heterogeneity. In fact, for models that do not incorporate facies heterogeneity, predicted past and present-day seafloor leakage of petroleum is largely underestimated. This complex interplay of generation and migration mechanisms has significant implications for charging of petroleum accumulations by multiple source rocks. Due to early maturation and late stage tertiary migration, the syn-rift source rocks particularly Mid Hauterivian and Late Hauterivian source intervals significantly control the extent of petroleum accumulation and loss in the basin. Lastly, the modelled 3D crustal configuration and Mezosoic to Cenozoic thermal regime of the WBB dispute classic uniform lithospheric stretching for the southern South African continental margin. Rather, this PhD thesis confirms that differential thinning of the lithosphere related to a transtensional pull-apart mechanism is the most appropriate for accurately predicting the evolution of basin and petroleum systems of the margin. Also, the presented 3D models currently represent the most advanced insights, and thus have clear implications for assessing associated risks in basin and prospect evaluation of the margin as well as other similar continental margins around the world.
AFRIKAANSE OPSOMMING: Hierdie studie ondersoek die korsstruktuur en evalueer die kwalitatiewe en kwantitatiewe impakte van kors-mantel-dinamika op insinkingspatroon, die termiese veld en petroleumstels evolusie aan die suidelike Suid-Afrikaanse kontinentale grens, in die hede en die verlede, deur die toepassing van ’n multidissiplinêre en multiskaal-geomodelleringsprosedure wat beide konseptuele en numeriese benaderings behels. Die modelleringsprosedure veral is belangrik aangesien hierdie kontinentale grens ’n komplekse interaksie van uitbreidings- en strekkingsparallelle tektoniek gedurende die Mesosoïese vastelandskeurprosesse daarvan dokumenteer. Omdat dit op die suidelike platvorm van Suid-Afrika geleë is, maak die Westelike Bredasdorp Kom (WBK) die fokus van hierdie studie uit, en verteenwoordig dit die westelike deel van die groter Bredasdrop-subkom, wat die verste wes is van die suidelike aflandige subkomme. Om die grens met betrekking tot sy huidige struktuur, isostatiese staat en termiese veld te verstaan, is ’n kombinasie benadering bestaande uit isostatiese, 3D-gravitasie- en 3D- termiese modellering gebruik deur potensiëleveld-, seismiese en boorgatdata te integreer Ondersteunend totot die gevolglike konfigurasie en termiese veld van die laasgenoemde deur middel van hedendaagse temperatuur, soos gemeet, vitriniet-refleksiekoëffisiënt en bronpotensiaal data, komskaal-begrawing en termiese geskiedenis en tydsberekening van brongesteentematurasie, is petroleumgenerasie, -uitwerping, -migrasie en -akkumulasie in die toekoms gesimuleer deur gebruik te maak van ’n 3D-kommodelleringstegniek. Hierdie hierargiese modelleringswerkvloei maak dit moontlik om geologiese aannames en hulle geassosieerde onsekerhede goed aan bande te lê en beter te kwantifiseer, veral in drie dimensies. In die hede word die diep kors van die WBK gekarakteriseer deur ’n drieledige digtheidstruktuur (met ander woorde voorrift-metasedimente onderlê deur bo- en benedekors domeine) wat dui op ’n baie wesenlike verdunning, beperk tot ’n dun O-W-strekkingsone. Die konfigurasie van die radiogeniese kristallyne kors, sowel as die konduktiwiteitskontraste tussen die diep kors en die vlak sedimentêre dekking, beheer grotendeels die hedendaagse termiese veld van die studiearea. Hierdie hedendaagse konfigurasie weerspieël in alle opsigte tipiese eienskappe van kom-evolusie in ’n skuifskeur omgewing. Byvoorbeeld, Die oriëntasies van die diep kors en verskuiwingbeheerde komsedimentasie byvoorbeeld is ruimtelik inkonsekwent en dui daardeur op verskillende ekstensiekinematika, tipies van transtensionale tensiemeganisme. As sulks, is sin-rift-versakking taamlik vinnig en kortstondig, en word isostatiese ekwilibrium nie by die Moho-vlak, in die besonder, bereik nie. Samehangende sin-rift vinnige versakking en hittevloeihoogtepunt het gelei tot petroleum behoud in die kom sedert die vroeë Kryt. Twee bykomende post-rift termiese anomalieë wat verband hou met die laat Kryt-“hotspot” meganisme en die Mioseense kontinentale grensopheffing in Suidelike Afrika het die sin-rift-beheer met maturasie opgevolg. Hierdie termiese maturiteit van die vyf gematureerde brongesteentes het in vier hoofgenerasie- en drie hoofakkumulasie fases, wat die totaliteit van die petroleumstelsels van die WBK karakteriseer, gekulmineer. Die Campaniese, Eoseense en Mioseense opheffings senarios het episodies bronmaturasie gestop en tersiêre migrasie van petroleum wat vroeër opgevang was veroorsaak. Addisioneel vind petroleumverlies gekoppel aan die spilpunt van elke opvanggebiedkonfigurasie tydens die laat Kryt-Paleoseen en Oligoseenvroeë Mioseen plaas. Die tydstelling en omvang van migrasiedinamika is die sensitiefste vir die geologiese scenario wat verskuiwing, seëlomseilingstelsel en fasiesheterogeniteit kombineer. Trouens, vir modelle wat nie fasiesheterogeniteit inkorporeer nie, is voorspellings van vroeëre en huidige seebodemlekkasie van petroleum grotendeels onderskattings. Hierdie komplekse wisselwerking van generasie- en migrasiemeganismes het beduidende implikasies vir die laai van petroleumakkumulasies deur veelvoudige brongesteentes. Vanweë vroeë maturasie en laatstadiumtersiêre migrasie, oefen die sin-rift-brongesteentes, veral middel Hauterivium- en laat Hauteriviumbronintervalle, beduidende beheer oor die omvang van petroleumakkumulasie en -verlies in die kom uit. Laastens weerspreek die gemodelleerde 3D-korskonfigurasie en Mesosoïese-tot-Senosoïesetermiese regime van die WBK ’n klassieke uniforme litosferiese rekking vir die suidelike Suid- Afrikaanse kontinentale grens. Inteendeel, hierdie PhD-proefskrif bevestig dat ’n differensiële verdunning van die litosfeer, gekoppel aan ’n transtensiemeganisme, die beste geskik is om ’n akkurate voorspelling oor die evolusie van kom- en petroleumstelsels van die kontinentale grens mee te maak. Verder, verteenwoordig die 3D-modelle, wat hier aangebied word, tans die mees gevorderde insigte, en het hierdie modelle dus duidelike implikasies vir die assessering van verwante risiko’s in kom- en petroleum teikene valuering van die kontinentale grens, so wel as van ander soortgelyke kontinentale grense regoor die wêreld.
Van, Bloemenstein Chantell Berenice. "Petrographic characterization of sandstones in borehole E-BA1, Block 9, Bredasdorp Basin, Off-Shore South Africa." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_5957_1189147269.
Full textThe reservoir quality (RQ) of well E-BA1 was characterized using thin sections and core samples in a petrographic study. Well E-BA1 is situated in the Bredasdorp Basin, which forms part of the Outeniqua Basin situated in the Southern Afircan offshore region. Rifting as a result of the break up of Gondwanaland formed the Outeniqua Basin. The Bredasorp Basin is characterized by half-graben structures comprised of Upper Jurassic, Lower Cretaceous and Cenozoic rift to drift strata. The current research within the thesis has indicated that well E-BA1 is one of moderate to good quality having a gas-condensate component.
Uchechukwu, Ekwo Ernest. "Pore pressure prediction: a case study of sandstone reservoirs, Bredasdorp basin, South Africa." Thesis, University of the Western Cape, 2014. http://hdl.handle.net/11394/4228.
Full textThe Bredasdorp basin is situated off the south coast of the Republic of South Africa, southeast of Cape Town and west-south-west of Port Elizabeth. It covers approximately 18,000 sq. km beneath the Indian Ocean along the southern coast of South Africa, which is in the southwest of Mosselbay. Bredasdorp basin contains South Africa’s only oil and gas production facilities and has been the main focus for oil and gas exploration in South Africa. It is one of the largest hydrocarbon producing block in South Africa, rich in gas and oil prone marine source rocks of kimmeridgian to berriasian age. The wells of interest for this study are located within block 9 which is made up of 13 wells but for this study the focus is only on 3 wells, which are well F-01,F-02 and F-03. The goal of this study is to predict as accurately as possible the areas within and around the sandstone reservoir intervals of these wells with abnormal pressure, using well logs and production test data. Abnormal pore pressure which is a major problem for drillers in the oil industry can cause serious drilling incidents and increase greatly drilling non-production time if the abnormal pressures are not predicted accurately before and while drilling. Petrophysics log analysis was done to evaluate the reservoirs. The intervals of the reservoir are the area of interest.Pore pressure gradient, fracture gradient, pore pressure and fracture pressure model were run. Pressures of about 6078.8psi were predicted around the zone of interest in well F-01, 7861 psi for well F-02 and 8330psi for well F-03. Well F-03 was the most pressured of the three wells. Abnormal pressures were identified mostly at zones above and below the area of interest and predicted pressure values were compared to actual pressure values to check for accuracy.
Ngejane, Zamazulu. "Seismic interpretation and 2D restoration of F-A gas field, Bredasdorp Basin south coast of South Africa." Thesis, University of the Western Cape, 2014. http://hdl.handle.net/11394/4656.
Full textSeismic interpretation is always somewhat an uncertainty and questions on whether the horizons picked are properly correlated across faults and or the structures mapped are geologically or geometrically sensible always raise a concern as it provides the principal source of subsurface information used commonly in exploration by the oil and gas industry. In this study an attempt of delineating what are or not geological features has been done by validating the seismic structural interpretation using the restoration technique which also provided information about the extensional history of the study area. The seismic data, horizon and fault interpretation have been depth converted in 2DMove software followed by a sequential restoration and decompacting workflow. Simple shear was used as the restoration algorithm based on the deformation style of the basin (extensional basin). The seismic interpretation is valid and studies on tectonics interplay in basin development (gas field scale) during the Late-Jurassic- Early Cretaceous are based on the results of the four balanced cross-sections. They indicate that the Basin is not a simple extensional rift Basin but was rather formed through an alternation of extensional and compressional phases. The area understudy has undergone extension since rifting onset (break-up of Gondwana) with two intervening minor inversion episodes further NW and SE showing no significant shortening on the central part. A maximum extension is noted within the central part of the study area along the XL_1248 thus more accommodation space and subsequently thicker sediment accumulations are encountered in this region.
Ramiah, Kalidhasen. "2D Geomechanical Model for an Offshore Gas Field in the Bredasdorp Basin, South Africa." University of the Western Cape, 2016. http://hdl.handle.net/11394/5863.
Full textThis thesis provides a 2D geomechanical model for the K-R field, Bredasdorp Basin and describes the workflow and process to do so. This study has a unique density correction software applied to density data, prior to the estimation of geopressure gradients. The aim of this research is to create a model that evaluates the geomechanical behaviour of the upper shallow marine reservoir (USM) and provide a safe drilling mud window for future in the area.
Ojongokpoko, Hanson Mbi. "Porosity and permeability distribution in the deep marine play of the central Bredasdorp Basin, Block 9, offshore South Africa." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_1341_1189600798.
Full textThis study described porosity and permeability distribution in the deep marine play of the central Bredasdorp Basin, Block 9, offshore South Africa using methods that include thin section petrography, X-ray diffraction, and scanning electron microscopy, in order to characterize their porosity and permeability distributions, cementation and clay types that affect the porosity and permeability distribution. The study included core samples from nine wells taken from selected depths within the Basin.
Parker, Irfaan. "Petrophysical evaluation of sandstone reservoirs of the Central Bredasdorp Basin, Block 9, offshore South Africa." Thesis, University of the Western Cape, 2014. http://hdl.handle.net/11394/4661.
Full textThis contribution engages in the evaluation of offshore sandstone reservoirs of the Central Bredasdorp basin, Block 9, South Africa using primarily petrophysical procedures. Four wells were selected for the basis of this study (F-AH1, F-AH2, F-AH4, and F-AR2) and were drilled in two known gas fields namely F-AH and F-AR. The primary objective of this thesis was to evaluate the potential of identified Cretaceous sandstone reservoirs through the use and comparison of conventional core, special core analysis, wire-line log and production data. A total of 30 sandstone reservoirs were identified using primarily gamma-ray log baselines coupled with neutron-density crossovers. Eleven lithofacies were recognised from core samples. The pore reduction factor was calculated, and corrected for overburden conditions. Observing core porosity distribution for all wells, well F-AH4 displayed the highest recorded porosity, whereas well F-AH1 measured the lowest recorded porosity. Low porosity values have been attributed to mud and silt lamination influence as well as calcite overgrowths. The core permeability distribution over all the studied wells ranged between 0.001 mD and 2767 mD. Oil, water, and gas, were recorded within cored sections of the wells. Average oil saturations of 3 %, 1.1 %, and 0.2 % were discovered in wells F-AH1, F-AH2, and F-AH4. Wells F-AH1 to F-AR2 each had average gas saturations of 61 %, 57 %, 27 %, and 56 % respectively; average core water saturations of 36 %, 42 %, 27 %, and 44 % were recorded per well.
Van, der Ham Gert A. "Liquid petroleum gas as automotive fuel in South Africa." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52324.
Full textENGLISH ABSTRACT: The trends in worldwide fuel consumption and availability were studied, these indicated a bigger growth in gaseous fuel use than that of crude oil over the last decade. The economics (cost of converting and running vehicles on LPG) were studied and compared with those of petrol and diesel fuels. The government's approach to LPG taxation and the structure of the fuel price was also considered in an attempt to foresee what the future holds for LPG use in the motor industry. Gas fuelling systems that are currently available were studied and briefly described. The information obtained from the background study was used to help in the conversion of a two litre petrol engine. The engine was equipped to run on petrol Injection, liquid phase LPG injection and LPG carburettion. In-cylinder pressures, exhaust emissions and fuel consumption were amongst the parameters that were recorded for each fuel. The in-cylinder pressure measurements were used to study the combustion characteristics of petrol and LPG. Computer modeling was also used to investigate the trends that were recorded and this gave valuable insight into the different combustion characteristics of each fuel and the effect of gaseous versus liquid supply. For the passenger bus market a 12 litre 6 cylinder diesel engine was converted to LPG operation only. This required several changes to the pistons, cylinder head, inlet manifold and the addition of an electronic ignition system. Some changes had to be made to the squish characteristics of the pistons to make it suitable for homogeneous fuel air mixtures. The reasons for this were studied and described. Dynamometer tests revealed inadequacies in the ignition system that still need to be addressed before the engine can be built into a bus. Recommendations are made as to best utilize LPG in the South African Automotive industry, so as to improve public transport and air quality in some of our cities.
AFRIKAANSE OPSOMMING: 'n Studie van tendense in wêreldwye energieverbruik en besikbaarheid is gedoen. Dit het aan die lig gebring dat die groei in die gebruik van gasagtige brandstowwe in die laaste dekade die van ru-olie oortref het. Die lewensvatbaarheid van Vloeibare Petroleum Gas (VPG) voertuie, ombouing sowel as lopende koste, is bestudeer en vergelyk met die van Petrol en Diesel voertuie. Die regering se benadering tot belasting op VPG en die struktuur van die brandstofprys is ook ondersoek om te bepaal of die gebruik van VPG in n groter skaal as tans lewenvatbaar is. Vir tegniese agergrond is gas aangedrewe voertuie wêreldwyd bestudeer om te sien watter brandstof-voorsiening stelsels en enjins gebruik word. Die verskillende stelsels word bondig beskryf. Hierdie inligting is onder meer gebruik in die ombouing van n twee liter petrolenjin na VPG. Die enjin is toegerus om op beide petrol en VPG te loop terwyl die VPG in gasfase met behulp van 'n vergasser of as vloestof deur brandstof inspuiting toegedien kon word. Ontbrandingskamerdruk, uitlaatgasse en brandstofverbruik is van die parameters wat tydens toetse gemeet is. Die ontbrandingskamerdukmetings is gebruik om die verbrandingskarakteristieke van elke brandstof te bepaal. Nagebootste verbrandingstempos is in n rekeraarprogram gebruik om verskillende verbrandings karakteristieke wat gemeet is te ondersoek en tendense te bevestig. Vir die swaarvoertuigmark is 'n 12 Liter diesel enjin ombebou na VPG gebruik. Die dieselpomp en inspuiters is vervang met elektroniese vonkontsteking en vonkproppe. Die verbrandingskamer moes verander word om spontane verbranding tydens samepersing te voorkom. Die redes hiervoor is ondersoek en beskryf. Dinamo toetse het tekortkominge uitgewys in die elektroniese vonkontstekingsstelsel wat nog nie ten volle aangespreek is nie. Aanbevelings is gemaak om die toenemende gebruik van VPG as motorvoertuigbrandstof in Suid Afrika aan te bevorder om sodoende beter gebruik te maak van die beskikbare energie uit ru olie en ander bronne. Aanbevelings is ook gemaak ten opsigte van die gebruik van VPG in openbare vervoer en verbetering van lug gehalte in sommige stede.
Books on the topic "Petroleum - South Africa, Bredasdorp"
Prins, Joan. Anker aan die suidpunt: Die geskiedenis van die Nederduitse Gereformeerde Gemeente Bredasdorp 1838-1988. [South Africa: s.n., 1988.
Find full textOrganisation of African Trade Union Unity. and International Oil Working Group, eds. Trade union action to stop oil to South Africa. Port Harcourt: Publication Committee, University of Port Harcourt, 1985.
Find full textOil to South Africa: Apartheid's friends and partners. Amsterdam: Shipping Research Bureau, 1988.
Find full textShipping Research Bureau (Amsterdam, Netherlands), ed. Fuel for apartheid: Oil supplies to South Africa. Amsterdam: Shipping Research Bureau, 1990.
Find full textMobil in South Africa: The challenge. [Cape Town]: Public Affairs Dept. of Mobil Oil Southern Africa, 1986.
Find full textShipping Research Bureau (Amsterdam, Netherlands), ed. The Commonwealth and the oil embargo against South Africa. Amsterdam, Netherlands: The Bureau, 1987.
Find full textShell out of Namibia and South Africa: Shell Shadow Report. London: Anti-apartheid Movement and Embargo, 1986.
Find full textShipping Research Bureau (Amsterdam, Netherlands), ed. Marimpex: A German oil supplier to South Africa : survey : update 1989. Amsterdam: Shipping Research Bureau, 1989.
Find full textShipping Research Bureau (Amsterdam, Netherlands), ed. The European community and the oil embargo against South Africa. Amsterdam, Netherlands: The Bureau, 1988.
Find full textThe Refined Petroleum Products Research, The Petroleum, Petroleum Products Research Group, and The Petroleum and Petroleum Products Res. The 2000 Import and Export Market for Petroleum and Petroleum Products in South Africa (World Trade Report). 2nd ed. Icon Group International, 2001.
Find full textBook chapters on the topic "Petroleum - South Africa, Bredasdorp"
WINTERS, S. J., S. KUHLMANN, Jory A. Pacht, and Carlos H. L. Bruhn. "Delineation of an Oil and Gas Field Within a Turbidite System: Bredasdorp Basin, South Africa." In Submarine Fans and Turbidite Systems: Sequence Stratigraphy, Reservoir Architecture and Production Characteristics, Gulf of Mexico and International: 15th Annual, 401–8. SOCIETY OF ECONOMIC PALEONTOLOGISTS AND MINERALOGISTS, 1994. http://dx.doi.org/10.5724/gcs.94.15.0401.
Full text"Seismic Evidence for Widespread Gas Hydrate Formation, Offshore West Africa." In Petroleum Systems of South Atlantic Margins, 93–105. American Association of Petroleum Geologists, 2000. http://dx.doi.org/10.1306/m73705c8.
Full text"Petroleum challenges for Latin America and Africa in light of the Asian expansion." In Reconfiguration of the Global South, 159–78. Routledge, 2016. http://dx.doi.org/10.4324/9781315457659-20.
Full textWach, Grant D., Arnold H. Bouma, Ted Lukas, H. Deville Wickens, and R. K. Goldhammer. "Transition from Shelf Margin Delta to Slope Fan—Outcrop Examples from the Tanqua Karoo, South Africa." In Shelf Margin Deltas and Linked Down Slope Petroleum Systems: 23rd Annual, 849–61. SOCIETY OF ECONOMIC PALEONTOLOGISTS AND MINERALOGISTS, 2003. http://dx.doi.org/10.5724/gcs.03.23.0849.
Full textMuntingh, A., and L. F. Brown. "Sequence Stratigraphy of Petroleum Plays, Post-Rift Cretaceous Rocks (Lower Aptian to Upper Maastrichtian), Orange Basin, Western Offshore, South Africa." In Siliciclastic Sequence StratigraphyRecent Developments and Applications. American Association of Petroleum Geologists, 1993. http://dx.doi.org/10.1306/m58581c4.
Full textConference papers on the topic "Petroleum - South Africa, Bredasdorp"
Madyibi, L., R. di Primio, and G. C. Smith. "Petroleum system evolution of the southern Bredasdorp Basin, offshore South Africa." In 10th SAGA Biennial Technical Meeting and Exhibition. European Association of Geoscientists & Engineers, 2007. http://dx.doi.org/10.3997/2214-4609-pdb.146.3.3.
Full textMadyibi, Lihle, Rolando di Primio, and George Smith. "Three-dimensional Modeling of Petroleum Generation in the Southeast Flank of the Bredasdorp Basin, off the South Coast of South Africa." In 11th SAGA Biennial Technical Meeting and Exhibition. European Association of Geoscientists & Engineers, 2009. http://dx.doi.org/10.3997/2214-4609-pdb.241.madyibi_abstract.
Full textMacgregor, D. S., K. A. Bardwell, and J. H. Jackson. "An Integrated Approach to Prospect Risk Reduction in Block 9, Bredasdorp Basin, South Africa." In 6th SAGA Biennial Conference and Exhibition. European Association of Geoscientists & Engineers, 1999. http://dx.doi.org/10.3997/2214-4609-pdb.221.063.
Full textElamri, Samir, and Mimonitu Opuwari. "New Insights in the Evaluation of Reserves of Selected wells of the Pletmos Basin Offshore South Africa." In SPE/AAPG Africa Energy and Technology Conference. SPE, 2016. http://dx.doi.org/10.2118/afrc-2570854-ms.
Full textVan Toorenenburg, K., M. W. Blakeley, C. R. Carvajal, and J. F. Bijkerk. "Reconstruction of Sediment Routing into the South African Cape Basin for Reservoir Quality Predictions." In Fifth EAGE Eastern Africa Petroleum Geoscience Forum. European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.2021605057.
Full textMowzer, Z., and C. Motsoaledi. "Hydrocarbon Seep Hunting: Soil Gas Geochemical Sampling Application in the Karoo Basin, South Africa." In Fifth EAGE Eastern Africa Petroleum Geoscience Forum. European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.2021605013.
Full textBaby, G., F. Guillocheau, C. Robin, and M. Dall'Asta. "Post-Rift Vertical Movements Of The Southern African Margins - Implications For The South African Plateau Uplift." In Third EAGE Eastern Africa Petroleum Geoscience Forum. Netherlands: EAGE Publications BV, 2017. http://dx.doi.org/10.3997/2214-4609.201702412.
Full textTumushabe, W. M. "Tectonic Evolution of the Lake Edward Basin, South Western Uganda and Its Implication to Petroleum Accumulation." In First EAGE Eastern Africa Petroleum Geoscience Forum. Netherlands: EAGE Publications BV, 2015. http://dx.doi.org/10.3997/2214-4609.201414452.
Full textFielies, A., J. Salomo, and C. Van Bloemenstein. "Seismic Reveals Potential New Deep Source Rocks off the Western and Eastern Margins of South Africa." In Fifth EAGE Eastern Africa Petroleum Geoscience Forum. European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.2021605012.
Full textBarton, K. R. "Delineation Of Oil And Gas Fields In The Bredasdorp Basin, Offshore South Africa, Using Seismic Attribute Mapping, Seismic Inversion And Avo Techniques." In 5th SAGA Biennial Conference and Exhibition. European Association of Geoscientists & Engineers, 1997. http://dx.doi.org/10.3997/2214-4609-pdb.223.039.
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