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Development of a pore pressure and fracture pressure gradient prediction model for few exploration blocks in Mannar and Cauvery basins, offshore Sri Lanka

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dc.contributor.author Jayasinghe, JMSTW
dc.contributor.author Kurukulasuriya, AC
dc.contributor.author Jayasinghe, WMTU
dc.contributor.author Wickrama, MADMG
dc.contributor.author Senadhira, AMADM
dc.contributor.author Ratnayake, NP
dc.contributor.editor Hemalal, PVA
dc.date.accessioned 2022-07-21T04:38:30Z
dc.date.available 2022-07-21T04:38:30Z
dc.date.issued 2014-07
dc.identifier.citation Jayasinghe, J.M.S.T.W., Kurukulasuriya, A.C., Jayasinghe, W.M.T.U., Wickrama, M.A.D.M.G., Senadhira, A.M.A.D.M., & Ratnayake, N.P. (2014). Development of a pore pressure and fracture pressure gradient prediction model for few exploration blocks in Mannar and Cauvery basins, offshore Sri Lanka. In P.V.A. Hemalal (Ed.), Proceedings of the 8th National Conference on Earth Resources Management (pp. 56-60). Department of Earth Resources Engineering, University of Moratuwa. en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/18440
dc.description.abstract Availability of a pore pressure and fracture pressure gradient prediction model for petroleum well drilling is a basis for safety, cost effectiveness and the efficiency of the overall drilling program. Petrophysical data and measured pressure data of four wells previously drilled in the Mannar basin and Cauvery basin were reviewed to establish such a model for few petroleum exploration blocks in Sri Lanka. The pore pressure gradient prediction strategies used for the analysis are, Hottman and Johnson method, Ben Eaton method and D-exponent method. Hubbert and Willis method, Ben Eaton method and Matthews and Kelly method are the fracture pressure gradient prediction strategies used. Area specific variables including Poisson ratio and matrix stress coefficient were determined prior to fracture pressure gradient prediction. After a statistical analysis and comparison with well log data, a combination of Hottman and Johnson method and D-exponent (Eaton) method was selected as the best suited pore pressure gradient prediction model for the drilling area. The analysis of fracture pressure gradient strategies found that the Ben Eaton method is the best suited method for the area. After determining the suitable prediction methods, the Petrel software was used to visually interpret and analyze the results obtained. The research findings will help for future drilling operations and well planning in the specified area in Mannar and Cauvery basins. en_US
dc.language.iso en en_US
dc.publisher Department of Earth Resources Engineering en_US
dc.subject Sri Lanka en_US
dc.subject Mannar basin en_US
dc.subject Cauvery basin en_US
dc.subject Pore pressure gradient en_US
dc.subject Fracture pressure gradient en_US
dc.subject Poisson ratio en_US
dc.subject Matrix stress coefficient en_US
dc.title Development of a pore pressure and fracture pressure gradient prediction model for few exploration blocks in Mannar and Cauvery basins, offshore Sri Lanka en_US
dc.type Conference-Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Earth Resources Engineering en_US
dc.identifier.year 2014 en_US
dc.identifier.conference 8th National Conference on Earth Resources Management en_US
dc.identifier.place Katubedda en_US
dc.identifier.pgnos pp. 56-60 en_US
dc.identifier.proceeding Proceedings of the 8th National Conference on Earth Resources Management en_US
dc.identifier.email nalmratna2010@gmail.com en_US
dc.identifier.email nalin@uom.lk en_US


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