Academic literature on the topic 'Sandton (South Africa)'
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Journal articles on the topic "Sandton (South Africa)"
Drew, A. "Interview with Mandla Langa Sandton, South Africa, 20 July 2001." Comparative Studies of South Asia, Africa and the Middle East 20, no. 1-2 (January 1, 2000): 148–56. http://dx.doi.org/10.1215/1089201x-20-1-2-148.
Full textZavyalova, Natalya, Evgenia Evgenevna Frolova, Vitaliy Vasilievich Bezbakh, Ekaterina Petrovna Rusakova, and Mihail Nikolaevich Dudin. "BRICS Message From South Africa." Revista Amazonia Investiga 9, no. 26 (February 21, 2020): 529–44. http://dx.doi.org/10.34069/ai/2020.26.02.60.
Full textMacKeown, Jennifer M., and Mieke Faber. "Urbanisation and cariogenic food habits among 4–24-month-old black South African children in rural and urban areas." Public Health Nutrition 5, no. 6 (December 2002): 719–26. http://dx.doi.org/10.1079/phn2002358.
Full textChan, Sze Wai, and Daniel Vorobiof. "P2.03b-055 Survival in Non-Small Cell Lung Cancer (NSCLC) Patients (pts) with Driver Mutations at Sandton Oncology Centre, South Africa." Journal of Thoracic Oncology 12, no. 1 (January 2017): S969. http://dx.doi.org/10.1016/j.jtho.2016.11.1336.
Full textBotha, A. E., M. L. Schulman, H. J. Bertschinger, A. J. Guthrie, C. H. Annandale, and S. B. Hughes. "The use of a GnRH vaccine to suppress mare ovarian activity in a large group of mares under field conditions." Wildlife Research 35, no. 6 (2008): 548. http://dx.doi.org/10.1071/wr07136.
Full textMasia, Thendo, Kahilu Kajimo-Shakantu, and Akintayo Opawole. "A case study on the implementation of green building construction in Gauteng province, South Africa." Management of Environmental Quality: An International Journal 31, no. 3 (February 18, 2020): 602–23. http://dx.doi.org/10.1108/meq-04-2019-0085.
Full textFREUND, BILL. "INEQUALITY AND THE CAUSES OF POVERTY IN SOUTH AFRICA - Class, Race and Inequality in South Africa. By Jeremy Seekings and Nicoli Natrass. New Haven and London: Yale University Press, 2005. Pp. x+446. $60 (isbn978-030-010-8927). - A History of Inequality in South Africa 1652–2002. By Sampie Terreblanche. Pietermaritzburg and Sandton: University of Natal Press and KMM Review Press, 2002. Pp. xvi+527. £37.50 (isbn978-1869-140-229)." Journal of African History 50, no. 1 (March 2009): 129–32. http://dx.doi.org/10.1017/s0021853709004253.
Full textWeber, Bettina, Dirk C. J. Wessels, and Burkhard Büdel. "Biology and ecology of cryptoendolithic cyanobacteria of a sandstone outcrop in the Northern Province, South Africa." Algological Studies/Archiv für Hydrobiologie, Supplement Volumes 83 (December 19, 1996): 565–79. http://dx.doi.org/10.1127/algol_stud/83/1996/565.
Full textAndersen, T., G. A. Botha, and M. A. Elburg. "A late Mesozoic – early Cenozoic sedimentary recycling system on the Gondwana rifted margin of southeast Africa." South African Journal of Geology 123, no. 3 (September 1, 2020): 343–56. http://dx.doi.org/10.25131/sajg.123.0023.
Full textCole, Doug. "Heritage stone in Cape Town, South Africa." Geological Society, London, Special Publications 486, no. 1 (September 20, 2018): 305–23. http://dx.doi.org/10.1144/sp486.3.
Full textDissertations / Theses on the topic "Sandton (South Africa)"
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.
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.
Martinelli, Giorgio Luigi. "The hydrogeology of a Karoo basalt/sandstone contact aquifer moretele II district Republic of Bophuthatswana southern Africa." Thesis, Rhodes University, 1988. http://hdl.handle.net/10962/d1001902.
Full textUchechukwu, 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.
Sandberg, Rory Nimmo. "The response of biological communities to natural and anthropogenic habitat fragmentation in South Outeniqua Sandstone Fynbos, South Africa." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/95460.
Full textENGLISH ABSTRACT: Habitat fragmentation through the loss and modification of natural ecosystems poses a serious threat to biodiversity globally. Mechanisms and ecological implications of fragmentation have been extensively studied, yet new and meaningful insights continue to be produced. The highly diverse and ecologically complex fynbos shrubland communities that occur in the Cape Floristic Region of South Africa are amongst the most threatened by habitat fragmentation by urban, agricultural and silvicultural land uses and to the spread of invasive alien plants. Fynbos vegetation communities are fire-adapted and exploit the post-fire regeneration niche. Natural stochasticity in the fire regime means that these communities are temporally unstable; a factor that allows for the coexistence of such extreme diversity. Few studies have attempted to assess the influence of habitat fragmentation on this stochasticity, or to investigate the response of biological communities to the conditions that result. It is unknown whether this temporal instability will lead to delayed extinctions in fragmented communities, thus generating extinction debt. South Outeniqua Sandstone Fynbos occurs as a unique landscape mosaic of both insular and extensive habitats, suited to study through an island biogeography framework. Vegetation community stability was assessed through the comparison of historic and recent data sets. The responses of local vegetation and avifaunal communities to habitat fragmentation were assessed and compared on the basis of their differing motility. The unique habitat configurations also allowed for the investigation of extinction debt in the local communities and provided an opportunity to assess the influence of the surrounding matrix on species persistence and on connectivity in the artificial fragments. Data were analysed through simple regression analyses, modified Chi-squared tests and through ordination analyses. Ultimately the value of the artificial habitat fragments for the conservation of biological communities was assessed. Stability was observed in the vegetation species-area relationship for the natural islands and the mainland sites over twenty-two years. Smaller islands were found to receive fewer fires than large islands and the mainland. This consistently over-extended fire-return interval reduces the stochasticity of the local fire regime causing stable yet depauperate vegetation communities to result. Vegetation communities in the artificial fragments were found to hold area-related extinction debt, possibly due to the relatively long-term demographic turnover that typically occurs in fynbos. Avifaunal communities varied in their response to fragmentation relative to the vegetation. Birds – being motile – were found to be unaffected by isolation distance or surrounding matrix type – their response due more to changes experienced in the vegetation community than to geographic constraints. Fynbos-typical birds responded to the post-fire age of vegetation. Frugivorous birds and the matrix-habitat edge were identified as sources of alien and non-fynbos plant species that colonise the artificial fragments, potentially reducing the quality of these habitats for avifauna. Fragmented communities of South Outeniqua Sandstone Fynbos have the potential to function as biological reserves. This potential can be realised through the implementation of a fire regime that acknowledges the stochasticity required by the vegetation, the frequency required by the vegetation and the avifauna, and the practicality required by surrounding anthropogenic land-uses.
AFRIKAANSE OPSOMMING: Habitat-fragmentering, deur die verlies en verandering van natuurlike ekosisteme, hou 'n ernstige bedreiging in vir biodiversiteit wêreldwyd. Meganismes en ekologiese implikasies van die fragmentering is al breedvoerig bestudeer, maar nuwe en betekenisvolle insigte word voortaan vervaardig. Die hoogs diverse en ekologies komplekse fynbos-struikveld gemeenskappe wat in die Kaapse Floristiese Streek van Suid-Afrika voorkom, word meeste bedreig deur habitat-fragmentering deur verstedeliking, landbou en houtteeltkundige grondgebruike en die verspreiding van indringerplante. Fynbos gemeenskappe is aangepas tot vuur en die uitbuiting van post- vuur herlewing nis. Natuurlike stogastisiteit in die vuur-bedeling beteken dat hierdie gemeenskappe tydelik onstabiel word, 'n faktor wat die mede-bestaan van uiterste diversiteit moontlik maak. Min studies het al die invloed van habitat-fragmentering op hierdie stogastisiteit ondersoek, of die reaksie van biologiese-gemeenskappe tot die voortspruitende omstandighede. Dit is onbekend of die tydelike onstabiliteit sal lei tot vertraagde uitsterwing in gefragmenteerde gemeenskappe, dus genereer uitsterwings-skuld. Suid Outeniqua Sandsteen Fynbos kom as 'n unieke landskap mosaïek van beide die eilande en uitgebreide habitatte voor, geskik om deur 'n eiland biogeografie raamwerk bestudeer te word. Plant-gemeenskappe se stabiliteit is bestudeer deur die vergelyking van historiese en onlangse data stelle. Die reaksies van die plaaslike plantegroei en voëllewe gemeenskappe tot hul habitat is bestudeer en vergelyk op grond van hul verskillende beweeglikheid. Die unieke habitat konfigurasies het ook toegelaat vir die ondersoek van uitsterwings-skuld in die plaaslike gemeenskappe en 'n geleentheid gebied om die invloed van die omliggende habitat-matriks op spesies volharding en op konneksie in die kunsmatige fragmente te bepaal. Die data is ontleed deur middel van eenvoudige regressie analises, aangepasde Chi -kwadraat toetse en deur koördinerings ontledings. Ten einde die waarde van die kunsmatige habitat fragmente vir die bewaring van biologiese gemeenskappe te bepaal. Stabiliteit in die plantspesies-area verhouding vir die natuurlike eilande en die vasteland van webwerwe oor twee en twintig jaar was waargeneem. Kleiner eilande het minder brande aangeneem as groot eilande en die vasteland. Hierdie herhaalde oor-uitbrei over-extended vuur-interval het die stogastisiteit verminder van die plaaslike vuur-bedeling wat stabiele tog spesie-arme plantegroei gemeenskappe veroorsaak het. Plantegroei gemeenskappe in die kunsmatige fragmente is bevind om spesie- area -verhouding uitsterwings-skuld te bevat, moontlik as gevolg van die relatiewe lang termyn demografiese omset wat tipies voorkom in fynbos. Voëllewe gemeenskappe het gewissel in hul reaksie tot die fragmentering relatief tot die plantegroei. Voëls – weens hul beweeglikheid – blyk om nie beinvloed te word deur isolasie afstand of omliggende habitat-matriks tipe nie - hul reaksie blyk meer asgevolg van veranderinge wat ervaar word in die plantegroei gemeenskap as geografiese beperkinge. Fynbos-tipiese voëls reageer op die post- vuur ouderdom van plantegroei. Vrugte-etende voëls en die habitat-matriks rand is geïdentifiseer as bronne van uitheemse en nie-fynbos plantspesies wat die kunsmatige fragmente koloniseer, wat potensieel die kwaliteit van hierdie habitatte vir voëls verminder. Gefragmenteerde gemeenskappe van Suid Outeniqua Sandsteen Fynbos het die potensiaal om as biologiese reserwes te funksioneer. Hierdie potensiaal kan verwesenlik word deur die implementering van 'n vuur-bedeling wat erkenning verleen aan die stogastiesiteit vereis deur die plantegroei, die frekwensie wat deur die plantegroei en die voëllewe vereis word , en die praktiese vereistes van die omliggende menslike grondgebruike.
Dominick, Nehemiah Eliezer. "Reservoir heterogeneity of the sandstone reservoirs within the Pletmos basin, block11a, offshore South Africa." Thesis, University of the Western Cape, 2014. http://hdl.handle.net/11394/3901.
Full textThis study is aimed at illustrating the reservoir heterogeneity in the BCII - BCI interval of the Ga-field, offshore South Africa. This was achieved by generating a conceptual static model as a predictive tool for the BCII - BCI interval. The reservoir zones between BCII - BCI were sub divided into two major zones, viz: zone A and zone B. Petrophysical analysis was conducted on the three wells Ga-A3, Ga-Q1 and Ga-Q2. The application of the sequential gaussian algorithm ensured that all of the available data was honoured to the highest extent in generating the realisations to display the heterogeneity of the BCII – BCI sandstone reservoir. Sampling values from the well logs were extrapolated into the 3D grid. Each reservoir contained a percentage of shale or clay of about 45% -50%. Small scaled reservoir heterogeneity has been construed to the influence of the sedimentary structures. Large scaled reservoir heterogeneity has been identified, due to the lateral extent of the claystones which is widely distributed throughout the study area
Magoba, Moses. "Petrophysical evaluation of sandstone reservoir of well E-AH1, E-BW1 and E-L1 Central Bredasdorp Basin, offshore South Africa." University of the Western Cape, 2014. http://hdl.handle.net/11394/4462.
Full textThe Bredasdorp basin is a sub-basin of the greater Outeniqua basin. It is located off the south coast, Southeast of Cape Town, South Africa. This basin is one of the largest hydrocarbon (mainly gas) producing basins within Southern Africa. The petrophysical characteristic of the E-block sandstone units within the Bredasdorp basin has been studied to evaluate their hydrocarbon potential. The data sets used in this research were wireline logs (Las format), core data, and geological well completion reports. The three studied wells are E-AH1, E- BW1 and E-L1. The evaluated interval ranges from 2000.33m to 3303.96m in depth with reference to Kelly bushing within the wells. The sandstone reservoirs of the Bredarsdorp basin are characterized by a range of stacked and amalgamated channels. They originated from materials eroded from pre-existing high stand shelf sandstone and transported into the central Bredarsdorp basin by turbidity current. These sandstones are generally in both synrift and drift section. The basin is thought to have developed from fan deltas and stream overwhelmed to water dominated delta. River dominated deltaic system progresses southward over the Northern edge of the central Bredasdorp basin. The Interactive Petrophysics (IP) software has been used extensively throughout the evaluation and development of interpretation model. The lithofacies of the rock units were grouped according to textural and structural features and grain sizes of well (E-AH1, E-BW1 and E-L1). Four different facies (A, B, C and D) were identified from the cored intervals of each well. Facies A was classified as a reservoir and facies B, C and D as a non-reservoir. Detailed petrophysical analyses were carried out on the selected sandstone interval of the studied wells. The cut-off parameters were applied on the seven studied sandstone interval to distinguish between pay and non-pay sand and all intervals were proved to be producing hydrocarbon. Volume of clay, porosity, water saturation and permeability were calculated within the pay sand interval. The average volume of clay ranged from 23.4% to 25.4%. The estimated average effective porosity ranged from 9.47% to 14.3%. The average water saturation ranged from 44.4% to 55.6%. Permeability ranged from 0.14mD to 79mD. The storage and flow capacity ranged from 183.2scf to 3852scf and 2.758mD-ft to 3081mD-ft respectively. The geological well completion reports classify these wells as a gas producing wells. E-L1 is estimated to have a potential recoverable gas volume of 549.06 cubic feet, E-BW1 is estimated to have 912.49 cubic feet and E-AH1 is estimated to have 279.69 cubic feet.
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.
Opuwari, Mimonitu. "Petrophysical evaluation of the albian age gas bearing sandstone reservoirs of the o-m field, orange basin, South Africa." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_7221_1380806808.
Full textPetrophysical evaluation of the Albian age gas bearing sandstone reservoirs of the O-M field, Offshore South Africa has been performed. The main goal of the thesis is to evaluate the reservoir potentials of the field through the integration and comparison of results from core analysis, production data and petrography studies for the evaluation and correction of key petrophysical parameters from wireline logs which could be used to generate an effective reservoir model. A total of ten wells were evaluated and twenty eight sandstone reservoirs were encountered of which twenty four are gas bearing and four are wet within the Albian age depth interval of 2800m to 3500m. Six lithofacies (A1, A2, A3, A4, A5 and A6) were grouped
according to textural and structural features and grain size from the key wells (OP1, OP2 and OP3). Facies A6 was identified as non reservoir rock in terms of reservoir rock quality and facies A1 and A2 were regarded as the best reservoir rock quality. This study identifies the different
rock types that comprise reservoir and non reservoirs. Porosity and permeability are the key parameters for identifying the rock types and reservoir characterization. Pore throat radius was estimated from conventional core porosity and permeability with application of the Winland&rsquo
s method for assessment of reservoir rock quality on the bases of pore throat radius. Results from the Winland&rsquo
s method present five Petrofacies (Mega porous, Macro porous, Meso porous, Micro porous and Nanno porous). The best Petrofacies was mega porous rock type which corresponds to lithofacies A1 and A2. The nano porous rock type corresponds to lithofacies A6 and was subsequently classified as non reservoir rock. The volume of clay model from log was taken from the gamma-ray model corrected by Steiber equations which was based on the level of agreement between log data and the x-ray diffraction (XRD) clay data. The average volume of clay determined ranged from 1 &ndash
28 %. The field average grain density of 2.67 g/cc was determined from core data which is representative of the well formation, hence 2.67 g/cc was used to estimate porosity from the density log. Reservoir rock properties are generally good with reservoir average porosities between 10 &ndash
22 %, an average permeability of approximately 60mD. The laterolog resistivity values have been invasion corrected to yield estimates of the true formation resistivity. In general, resistivities of above 4.0 Ohm-m are productive reservoirs, an average water resistivity of 0.1 Ohm-m was estimated. Log calculated water saturation models were calibrated with capillary pressure and conventional core determined water saturations, and the Simandoux shaly sand model best agree with capillary and conventional core water saturations and was used to determine field water saturations. The reservoir average water saturations range between 23 &ndash
69 %. The study also revealed quartz as being the dominant mineral in addition to abundant chlorite as the major clay mineral. The fine textured and dispersed pore lining chlorite mineral affects the reservoir quality and may be the possible cause of the low resistivity recorded in the area. The reservoirs evaluated in the field are characterized as normally pressured with an average reservoir pressure of 4800 psi and temperature of 220 º
F. An interpreted field aquifer gradient of 0.44 psi/ft (1.01 g/cc) and gas gradient of 0.09 psi/ft (0.2 g/cc) were obtained from repeat formation test measurements. A total of eight gas water contacts were identified in six wells. For an interval to be regarded as having net pay potential, cut-off values were used to distinguish between pay and non-pay intervals. For an interval to be regarded as pay, it must have a porosity value of at least 10 %, volume of clay of less than 40 %, and water saturation of not more than 65 %. A total of twenty four reservoir intervals meet the cut-off criteria and was regarded as net pay intervals. The gross thickness of the reservoirs range from 2.4m to 31.7m and net pay interval from 1.03m to 25.15m respectively. In summary, this study contributes to scale transition issues in a complex gas bearing sandstone reservoirs and serves as a basis for analysis of petrophysical properties in a multi-scale system.
Jacobs, Kirk Charles. "Effects of clay minerals on the petrophysical properties of sandstone reservoirs from the Offshore Pletmos Basin, South Africa." University of the Western Cape, 2019. http://hdl.handle.net/11394/7245.
Full textWith the latest advancements in the Pletmos Basin it is imperative to understand and study how sandstone reservoirs are affected by clay minerals. Clay minerals are an influential component in sandstone reservoirs worldwide and thus have an impact on the reservoir quality and petrophysical properties. The present research was aimed at assessing the effects of clay minerals on the petrophysical properties of sandstone reservoirs from the Offshore Pletmos Basin. This was done by integrating geological (wireline logs and core analysis), geochemical (XRD and pore water chemistry) and petrographical (QEMSCAN and thin section petrography) analysis to highlight the effects of clay minerals on the intrinsic properties (porosity, permeability and fluid saturation) on reservoirs encountered within the two wells (Ga- Q1 and Ga – S1). The results highlight pervasive quartz cementation as well as the presence of clay minerals: Glauconite (Illite group), Kaolinite (Kaolinite group), Clinochlore (Chlorite group) as the dominant clay minerals and Calcite as the dominant cement in both well Ga – Q1 and well Ga – S1. The most abundant clay mineral in both wells is Glauconite. This clay mineral had a more profound effect on the petrophysical parameters compared to the other clay minerals. The clay minerals occur as pore–filling Kaolinite and pore–bridging Glauconite and pore–lining Clinochlore. As a result, the clay minerals affected the pore connectivity (permeability) more than the pore spaces (porosity). This is confirmed by the petrophysical analysis where both wells have extremely low permeability and good porosity values. The study concludes that the presence of Glauconite, Kaolinite, Clinochlore and Calcite in both wells (Ga-Q1 and Ga-S1) had an adverse effect on the permeability more compared to the porosity in sandstone reservoirs. Due to the high volume of clay and high clay mineral content in well Ga-Q1, the petrophysical parameters were more adversely affected compared to well Ga-S1. As a result, we see better petrophysical properties (porosity and permeability) in the sandstone reservoir from well Ga-S1 due to intense bioturbation. The reservoir quality of well Ga-S1 is much better compared to well Ga – Q1 because water saturation averages at 42% and gas saturation averages at 58%, has decent porosity averages at 12% but low permeability ranges of 0, 1 – 4mD.
2021-09-30
Books on the topic "Sandton (South Africa)"
Sono, Themba. Race relations in post₋apartheid South Africa: Presidential address, 2nd September 1998, Barlow Park, Sandton. Johannesburg: South African Institute of Race Relations, 1999.
Find full textConference, South African PWPA. Foreign policy issues in a democratic South Africa: Papers from a Conference of Professors World Peace Academy (South Africa), held north of Johannesburg (in Sandton), South Africa, on 20-21 March 1992. Johannesburg, South Africa: Professors World Peace Academy, 1993.
Find full textInternational, Conference on Mineral Science and Technology (1984 Sandton South Africa). Proceedings of Mintek 50: International Conference on Mineral Science and Technology, Sandton, South Africa, 26th to 30th March, 1984. Randburg: Council for Mineral Technology, 1985.
Find full textIFIP TC11 International Information Security Conference (22nd 2007 Sandton, South Africa). New approaches for security, privacy and trust in complex environments: Proceedings of the IFIP TC-11 22nd International Information Security Conference (SEC 2007), 14-16 May 2007, Sandton, South Africa. New York: Springer, 2007.
Find full textWarren, Siebrits, and Sandton Art Gallery, eds. Aspects of South African art, 1903-1999: At the Sandton Civic Gallery, 14-29 September 2001. Cape Town, S.A: Johans Borman Fine Art Gallery, 2001.
Find full textEric, Wainwright, Wakabayashi Brigitte, and South African PWPA, eds. South Africa: Reform or revolution : papers from a conference of the South African PWPA held in Sandton, South Africa, April 7-10, 1988. Johannesburg: PWPA, 1988.
Find full textAfrica), Professors World Peace Academy (South. Foreign policy issues in a democratic South Africa: Papers from a Conference of Professors World Peace Academy (South Africa), held north of Johannesburg ... Sandton), South Africa, on 20-21 March 1992. Professors World Peace Academy, 1993.
Find full textEric, Wainwright, Halenke Wilfried, and South African PWPA, eds. The Role of academics and human relationships in Southern Africa: Papers from a conference of the South African PWPA, held in Sandton, South Africa, January 17-18, 1985. [Johannesburg]: Professors World Peace Academy, 1985.
Find full textBook chapters on the topic "Sandton (South Africa)"
Jacobs, T. V. "Floristics of Transkei sandstone forests (South Africa)." In The Biodiversity of African Plants, 805–8. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0285-5_105.
Full textChiliza, Sibonakaliso G., and Egerton D. C. Hingston. "A Petrographic and Geotechnical Study of the Sandstone of the Fundudzi Formation, Lake Fundudzi, South Africa." In IAEG/AEG Annual Meeting Proceedings, San Francisco, California, 2018—Volume 6, 153–58. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93142-5_21.
Full text"TMALI Launch Conference, 11–13 October 2010, Sandton Convention Centre, Johannesburg, South Africa." In Perspectives on Thought Leadership for Africa's Renewal, 685–90. Africa Institute of South Africa, 2014. http://dx.doi.org/10.2307/j.ctvh8r0z2.52.
Full textKINGSLEY, CHARLES S. "FACIES CHANGES FROM FLUVIAL CONGLOMERATE TO BRAIDED SANDSTONE OF THE EARLY PROTEROZOIC ELDORADO FORMATION, WELKOM GOLDFIELD, SOUTH AFRICA." In Recent Developments in Fluvial Sedimentology, 359–70. SEPM (Society for Sedimentary Geology), 1987. http://dx.doi.org/10.2110/pec.87.39.0359.
Full text"(a) Central Andes of Peru, near Chacayán: terraces in the dry 268 season (b) View from the central railway of Peru 268 11.2 The driest desert in the world, the Atacama, northern Chile 270 11.3 One of the highest mountains in the Andes, Huascarán, Peru 270 11.4 Latin America: mechanisation in Brazil (a) Early textile machinery installed in a mill in Northeast 274 Brazil, Salvador (b) Plant for processing manganese ore, Serra do Navio, 274 Amapa, North Brazil 12.1 Africa south of the Sahara: cultivators and herders (a) Trappean lava plateau of central Ethiopia: patchwork of 296 ploughed fields and land with crops (b) Eastern lowlands of Ethiopia: nomads herding cattle 296 12.2 Africa south of the Sahara: agriculture (a) Subsistence agriculture: a stick used to make holes in the 297 soil to plant seeds, Ethiopia (b) Commercial agriculture: sisal fibre being processed 297 12.3 Africa south of the Sahara: church hollowed out of a deposit of 298 sandstone, Lalibela, Ethiopia 12.4 Tanzania: extracts from manuals on diet and health 300 12.5 South Africa: cartoons from the magazine Fun 302 13.1 Semi-desert landscape, with some cultivation and a date-palm 315 Mosque in Kaiouran, Tunisia, first in status in North Africa 316." In Geography of the World's Major Regions, 652. Routledge, 2003. http://dx.doi.org/10.4324/9780203429815-162.
Full textConference papers on the topic "Sandton (South Africa)"
Wrench, Peter M., and Barry V. W. Irwin. "Towards a sandbox for the deobfuscation and dissection of PHP malware." In 2014 Information Security for South Africa (ISSA). IEEE, 2014. http://dx.doi.org/10.1109/issa.2014.6950504.
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.
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