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Remote sensing and GIS based results from the geometric characterization of braid bar deposits in the Niger Delta are presented in this work. In this study the geometry of 67- braid bar deposits from Landsat images of 1985 and 2015 were documented and compared to determine the relationship that exist between geometric dimensions and the amount of change that has occurred on them. The braid bars identified in this work are all associated with fluvial environment in the Niger Delta. Braid bars in 1985 are observed to be greater in length, width and area than those in 2015. R² values (0.6) indicate that a significant relationship exists between braid bar length and width. R² values also indicate a significant relationship exists between both length and area (0.7) and width and area (0.8) of the braid bars values within the study area. Thus, the utilization of width to predict the length and vice versa of braid bars is reasonable. Hence data from this study provides relevant information on size ranges that can be utilized for the efficient characterization, modelling and development of hydrocarbon reservoirs.
Jones JA, Hartley AJ. Reservoir characteristics of a braid-plain depositional system: The upper carboniferous pennant sandstone of South Wales. Geological Society, London, Special Publications. 1993;73(1):143-156.
Slatt RM. Stratigraphic reservoir characterization for Petroleum Geologists, Geophysicists and Engineers. Elsevier Publ. Co. 2006;492.
Martin JH. A review of braided fluvial hydrocarbon reservoirs: The petroleum engineer's perspective. In J. L. Best and C. S. Bristow, Eds., Braided Rivers: Geological Society. Special Publication. 1993;75:333–367.
Hooke JM. The significance of mid-channel bars in an active meandering river. Sedimentology. 1986;33(6):839–850.
Jiongxin X. Evolution of mid-channel bars in a braided river and complex response to reservoir construction: An example from the middle Hanjiang River, China. Earth Surface Processes and Landforms. 1997;22(10):953–965.
Reijers TJA, Petters SW, Nwajide CS. The Niger Delta basin. In Reijers TJA (Ed.), Selected Chapters on Geology: SPDC Corporate Reprographic Services, Warri, Nigeria. 1996;103-114.
Adegoke J, Mofoluso F, James G, Agbaje G, Ologunorisa T. An assessment of recent changes in the Niger Delta coastline using satellite imagery. Journal of Sustainable Development. 2010;3:277-296.
Murat RC. Stratigraphy and paleogeography of the cretaceous and lower tertiary in Southern Nigeria. African Geology, Dessauvagie TFJ and Whiteman AJ (Eds), University of Ibadan Press. 1972;251-266.
Adegoke OS, Oyebamiji AS, Edet JJ, Osterloff PL, Ulu OK. Cenozoic foraminifera and calcareous nannofossil biostratigraphy of the Niger Delta. Elsevier. 2017;1-5.
Doust H, Omatsola E. Niger Delta: In J. D. Edwards and P. A. Santogrossi, Eds., Divergent/Passive Margin Basins: AAPG Memoir. 1990;48:239-248.
Lillesand TM, Kiefer RW. Remote sensing and image interpretation. John Wiley and Sons, New York; 2000.
Ethridge FG, Schumm SA. Fluvial seismic geomorphology: A view from the surface. In Davies, R.J., Posamentier H.W., Wood L.J., Cartwright J.A. Eds., Seismic Geomorphology: Applications to Hydrocarbon Exploration and Production: Geological Society of London. Special Publication. 2007;277:205–222.
Willis BJ. Palaeochannel reconstructions from point bar deposits: A 3-Dimensional perspective. Sedimentology. 1989;36(5):757-766.
Bridge JS, Tye RS. Interpreting the dimensions of ancient fluvial channel bars, channels and channel belts from wireline-logs and cores. AAPG Bulletin. 2000;84:1205–1228.
Bhattacharya JP, Tye RS. Searching for modern Ferron analogs and applications to subsurface interpretation. In Chidsey, T.C., JR., Adams, R.D., and Morris, T.H., Eds., Regional to Wellbore Analog for Fluvial–Deltaic Reservoir Modeling: the Ferron Sandstone of Utah: AAPG, Studies in Geology. 2004;50:39–57.
Holbrook J, Wanas H. A fulcrum approach to assessing source-to-sink mass balance using channel paleohydrologic paramaters derivable from common fluvial data sets with an example from the Cretaceous of Egypt. Journal of Sedimentary Research. 2014;84(5):349–372. DOI: https://doi.org/10.2110/jsr.2014.29
Akana ST, Adeigbe OC. Geometric characterization of point bar deposits in the lower river Niger, Niger Delta. Journal of Earth Sciences and Geotechnical Engineering. 2019;9(2):13-21.
Holzweber BI, Hartley AJ, Weissmann GS. Scale invariance in fluvial barforms: Implications for interpretation of fluvial systems in the rock record. Petroleum Geoscience. 2014;20(2):211-223.
Kelly S. Scaling and hierarchy in braided rivers and their deposits: Examples and implications for reservoir modelling. In: Braided Rivers: Process, Deposits, Ecology and Management (Eds G.H. Sambrook Smith, J.L. Best, C.S. Bristow and G.E. Petts), IAS Spec. Publ. 2006;36:75–106.
Sambrook-Smith GH, Ashworth PJ, Best JL, Woodward J, Simpson CJ. The morphology and facies of sandy braided rivers: Some considerations of scale invariance. Spec. Publ. Int. Ass. Sediment. 2005;35:145-158.
Komar PD. The Lemniscate Loopacomparisons with the shapes of streamlined landforms. J. Geol. 1984;92:133–145.