Series-2 (Jan. – Feb. 2021)Jan. – Feb. 2021 Issue Statistics
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| Paper Type | : | Research Paper |
| Title | : | Petrophysical Properties of Gas Reservoirsin Well SB-02 of Shahbazpur Gasfield, Hatya Trough, Bengal Basin |
| Country | : | Bangladesh |
| Authors | : | Debashish Mondal || Md. Sultan-Ul-Islam || Mojahidul Islam || Most. Afrin Hossen || Kona Parvin || Md. Rashedul Islam |
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: | 10.9790/0990-0901020111  |
Abstract: The present study reflect the petrophysical properties of gas reservoirs encountered in the well SB-02 ofthe Shahbazpur gasfield, Hatya Trough, Bengal Basin. Five gas-bearing reservoirs (Gas zones 01-05)are delineated in the Miocene sequence in thiswell.Off these, three gas-bearing zones (Gas zones 01, 02 and 04) are very promising good reservoirs.The reservoir of the gas zone-1 is consolidated to poorly consolidated sandstonehaving onaverage 21%Vsh, 63% Sh and, good effective porosity and permeability. The gas zone-2 is consolidated sandstone having 23.4 m net pay thickness. This reservoir has 23% Vsh, 15% effective porosity and 65% Sh. Its log derives permeability is 12 mD. The tight consolidated sandstone of the gas zone-4 has 8% Vsh, 14% effective porosity and 64% Sh. The consolidated sandstones of the gas zones 03 and 05 have high Vshwith low porosity, Sh and permeability, whichare not suitable for gas production.
Keywords: Petrophysicalproperties, Well logs, Shahbazpur gasfield, Hatya Trough, Bengal Basin
[1]. Alam, M. (1989) Geology and depositional history of Cenozoic sediments of Bangladesh. Paleogeography, Paleoclimatology and Paleoecology, v.69, p.125-139.
[2]. Alam, M. (1972) Tectonic classification of the Bengal Basin. GSA Bulletin, v.83, p.519-522.https://doi.org/10.1130/0016-7606(1972)83[519:TCOBB]2.0.CO;2.
[3]. BAPEX (1995) Geological interpretation of Shahbazpur Gasfield. Bangladesh Petroleum Exploration and Production Company Limited, A proprietary report.
[4]. Bradley, H. (1987) Petroleum Engineering Handbook-Properties of Reservoir Rocks, Society of Petroleum Engineer, USA.
[5]. Coates, G. and Dumanoir, J.L. (1973) A new approach to improve log-derived permeability, In: Proc. of the 14th Annual Logging Symposium, Society of Professional Well Log Analysts, USA, June 7-9, 1973, p.103-201..
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| Paper Type | : | Research Paper |
| Title | : | Evaluation of Reservoir Sub Surface Structures from Temperature Heat Up and Alteration Minerals in Olkaria Domes Geothermal Field, Kenya |
| Country | : | Kenya |
| Authors | : | Solomon Namaswa || John Githiri || Nicholas Mariita || Maurice K'Orowe |
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: | 10.9790/0990-0901021220 |
Abstract: The Olkaria Domes Geothermal field is situated in the south of Lake Naivasha, in southern sector of the Kenya Rift system, approximately 127 km northwest of Nairobi in Kenya. Geothermal reservoir evaluation involves various kinds of tests, data interpretation and modelling. In this paper, heat-up temperature profiles tests during well recovery for fourteen wells and the first occurrence of high temperature alteration minerals such as Illites and Quartz data from five wells were analysed for the purpose of obtaining temperature distribution, permeability structures, feed zone locations as well as the up-flow and down-flow zones. From the temperature distribution results, two main heat sources were inferred; one to the Northwest and the second to the Eastern side of the field. The two heat sources are separated by a SW-NE oriented fault that is believed to control the fluid flow. The natural recharge to the reservoir comes from.......
Keywords: Geothermal Reservoir, Temperature, Well Testing, Alteration Minerals
[1]. Jansen, G and Miller, S. A. (2017). The Role of Thermal Stresses during Hydraulic Stimulation of Geothermal Reservoirs. Hindawi Geofluids, 2017
[2]. Kandie, R., Mbuthia, P., and Stamic, J. (2016). Use of Leapfrog Geothermal Software in Data Integration and 3D Visualization Case Study of Olkaria Domes Geothermal System. Proceedings, 6th African Rift Geothermal Conference Addis Ababa, Ethiopia.
[3]. Lagat, J.K., (2004). Geology, hydrothermal alteration and fluid inclusion studies of the Olkaria Domes geothermal field, Kenya. University of Iceland, MSc thesis, UNU-GTP, Iceland, report 2, 71 pp.
[4]. Omenda, P., Ebinger, C., Nelson, W., Delvaux, D., Cumming, W., Marini, L., Halldórsson, S., Varet, J., Árnason, K., Ruempker, G., Alexander, K. and Zemedkum, M. (2016). Characteristics and Important Factors That Influence the Development of Geothermal Systemsin the Western Branch of East African Rift System, Proceedings, 6th African Rift Geothermal Conference Addis Ababa, Ethiopia.
[5]. Parada, A.F.M. (2016). Phases Of Geothermal Development, Presented at "SDG Short Course I on Sustainability and Environmental Management of Geothermal Resource Utilization and the Role of Geothermal in Combating Climate Change", organized by UNU-GTP and LaGeo, in Santa Tecla, El Salvador, September 4-10, 2016.
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| Paper Type | : | Research Paper |
| Title | : | Lithostratigraphy of Lava Flows at Tumjai Hill, Kolhapur District, Maharashtra, India. |
| Country | : | India |
| Authors | : | Abhijit J Patil || Yogita A. Patil || H.S. Patode |
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: | 10.9790/0990-0901022124 |
Abstract: Deccan Traps are made up of basaltic lava flows of Upper Cretaceous to Lower Eocene age. These flows have been formed by fissure type of volcanoes. They form a part of plateau basalts of the Peninsular India. The flows are of 'aa' type. The study area Tumjai Hill falls in Kumbhi River Basin. The altitude ranges from 539 meters to 889 meters. The total thickness of Tumjai Hill lava flows is 350 meters. The lava flow mapping has been carried out in the study area and various flows are marked. There are seven lava flows in Tumjai Hill area. Each flow is composed of several sub units. The sub units are made up of jointed basalt, compact basalt, vesicular and amygdaloidal basalt, red bole and volcanic breccia. Rosette structure and spheroidal weathering are also seen. Columnar joints are present in the upper part of the hill.......
Keywords: Lava flows, 'aa', Tumjai Hill, Columnar joints, jointed basalt, compact basalt, vesicular, amygdaloidal basalt, spheroidal weathering
[1]. Agashe LV, Gupte RB (1972) Mode of eruption of Deccan Trap hasalts. Bull Volcanol 35: 591–601
[2]. Alexander PO (1981) Age and duration of Deccan volcanism. K-Ar evidence. Memoir Geological Society of India 3: 224–258
[3]. Beane J. E., Turner C. A., Hooper P. R., Subbarao K. V., Walsh J. N. (1986) Stratigraphy, composition, and form of the Deccan basalts, Western Ghats, India. Bulletin of Volcanology 48:61–83
[4]. Bodas MS, Khadri SFR, Subbarao KV, Hooper PR, Walsh JN (1984) Flow stratigraphy of a part of the western Deccan Basalt province (abs.). 5th Indian Geol Congress, Indian Institute of Technology, Bombay
[5]. Cox K. G. (1980)- A model for Flood Basalt volcanism. Journal of Petrology 21: 629–650
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| Paper Type | : | Research Paper |
| Title | : | Geophysical Study of Groundwater Formation Systems Using Electrical Resistivity in Manga Area in Nyamira County, Kenya |
| Country | : | Kenya |
| Authors | : | Alice Makonjo Wekesa || Calford Otieno |
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: | 10.9790/0990-0901022534 |
Abstract: We report of a geophysical study that involved the use of the vertical electrical sounding (VES) technique with Schlumberger array using SSR-MP-ATS terrameter that was carried out in Manga area found in Nyamira County in Kenya. This aimed at investigating the subsurface formation and determining the corrosivity and protection capacity of the groundwater formation system. The results obtained revealed the existence of an average of five subsurface layers. The first layer forms the topsoil layer that is unlikely to be corrosive at VES 1 and VES 2 as well as can cause mild corrosion in metal and metallic structures buried in this layer at VES3 and VES 4.The overburden protection capacity is weak and the aquifer protection capacity is identified as having moderate protection in VES 1, VES 3 and VES 4 and being poor in VES 2.The area also has shallow aquifers and deep aquifers that are found in a highly fractured zones as revealed by aquifer transmissivity results.
Keywords: corrosivity, manga, protection capacity, resistivity, Schlumberger
[1]. Abdullahi MG, Toriman ME, Gasim MB (2015) .The Application of Vertical Electrical Sounding (VES) for Groundwater
Exploration in Tudun Wada Kano State, Nigeria.J Geol Geosci 4: 186.doi:10.4172/2329-6755.1000186.
[2]. Gulraiz Akhteri and M.Hasan (2016).Determination of aquifer parameters using geoelectrical sounding and pumping test data in
Khanewal District, Pakistan. Open Geosci 2016; 8: 630-638.
[3]. Hadi Tahmasbi Nejad (2009).Geoelectrical Investigation of the Aquifer Characteristics and Groundwater Potential in Bahbadan
Azad University Farm, Khuzestan province, Iran. Journal of Applied Sciences.ISSN: 1812-5654. 9(20); 3691-3698.
[4]. Zeru G,Alamirew T,Tadese N,Olmana M (2015).Aquifer Characterization and Parameter Estimation of Haramaya Well Field from
Surface Geophysical Method.Haramaya,Oromiya National Regional State.
[5]. Okonkwo AC, Ezeh CC and Opara AI. (2013).Estimates of Aquifer Transmissivity from Specific Capacity data in Sandstone
Aquifer in Enugu State, Southeastern Nigeria. Int.Res.J.Geo.Min.3 (8):291-297
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| Paper Type | : | Research Paper |
| Title | : | Distribution of Major, Trace and Rare Earth Elements in Polymetallic Nodules of Central Indian Ocean Basin |
| Country | : | India |
| Authors | : | Barman, S.K. || Tiwari, S.K. || Kumar, G. |
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: | 10.9790/0990-0901023549 |
Abstract: Polymetallic nodulesfrom the parts (latitude 9.5ºS to 12ºS and longitude 87ºE to 89.5ºE; water depth 4,900-5,900 m) of Central Indian Ocean Basin (CIOB) revealthe presence of Mn, Cu, Ni, Zn, Co and REEs significantly. To determine the occurrence and enrichment processes of thosemetals high resolution mineralogical and geochemical studieswere conducted.Elemental Association and correlation matrix of various elements viz. Mn, Fe, Co, Pb, Sr, Cu, Ni, Zn, and oxides viz. Na2O, K2O, TiO2, CaO, P2O5; Al2O3were studied to absorb the correlation pattern and mobilization.....
Keywords: CIOB, Geochemical Analysis, Fe-Mn(Polymetallic) Nodules, Trace Elements, REE, XRD, AAS, ICP-MS
[1]. AH Parulekar, SN Harkantra, ZA Ansari SM (1982) Abyssal benthos of the central Indian Ocean. Deep Sea Res part A 29:1531–1537
[2]. Alibo D, Acta YN (1999) Rare earth elements in seawater: particle association, shale-normalization, and Ce oxidation. geochemica Cosmochim actamicaca 63:363–372
[3]. Azmy K, Brand U, Sylvester P, et al (2011) Biogenic and abiogenic low-Mg calcite (bLMC and aLMC): Evaluation of seawater-REE composition, water masses and carbonate diagenesis. Chem Geol 280:180–190. https://doi.org/10.1016/j.ch
[4]. Baar H De, Brewer P, Acta MB-G et C, 1985 U (1985) Anomalies in rare earth distributions in seawater: Gd and Tb. geochemica Cosmochim acta 49:1961–1969
[5]. Baturin G (1988) The geochemistry of manganese andmanganese nodules in the ocean. Dordrecht, D. Reidel Publ Co