A Comprehensive Theoretical and Experimental Study on Fluid Displacement for Oilwell-Cementing Operations
- Pedro Esteves Aranha (Petrobras) | Cristiane Miranda (Petrobras) | Walter Cardoso (Petrobras) | Gilson Campos (Petrobras) | Andre Martins (Petrobras) | Frederico Carvalho Gomes (Pontificia Universidade Catolica do Rio de Janeiro) | Simone Bochner de Araujo (Pontificia Universidade Catolica do Rio de Janeiro) | Marcio Carvalho (Pontificia Universidade Catolica do Rio de Janeiro)
- Document ID
- Society of Petroleum Engineers
- SPE Drilling & Completion
- Publication Date
- December 2012
- Document Type
- Journal Paper
- 596 - 603
- 2012. Society of Petroleum Engineers
- 1.14 Casing and Cementing
- 4 in the last 30 days
- 690 since 2007
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Displacing fluids in downhole conditions and for long distances is a complex task, affecting several steps of well construction. Cementing gains relevance the moment that fluid contamination compromises cement-sheath integrity and consequently zonal isolation. Density and rheology design for all the fluids involved is essential to achieve operational success. Properties hierarchy and preferred flow regimes have been empirically defined and tend to provide reasonable generic results. Challenging operations, including ultradeep waters and their narrow operational-window scenario, require further knowledge of the physics involved to prevent undesirable events. This paper presents the in-house development of software for annular miscible fluid displacement that analyzes fluid displacement in typical vertical and directional offshore wells, for Newtonian and non-Newtonian liquids and laminar- and turbulent-flow regimes. The formulation proposed provides accurate results for a wide range of input parameters, including the cases in which the ratio of the inner radious to the outer radius of the annulus is small. The computational work is validated by unique results obtained from an experimental test rig where detailed displacement tests were conducted. Contamination degrees were measured after the displacement of a sequence of fluids through 1192 m of vertical well. Effect of fluid-density and rheology hierarchy, flow regimes, and displacement concepts was investigated. The results provide relevant information for the industry and fundamental understanding on displacement of Newtonian and non-Newtonian liquids through annular sections.
|File Size||891 KB||Number of Pages||8|
Aranha, P.E., Martins, A.L., Campos, G. et al. 2010. Desenvolvimento deModelo Transiente para Previsão de Pressões e vazões considerando Efeito deQueda Livre em Operações de Cimentação de Poços de Petróleo. CongressoBrasileiro de Engenharia Química, Foz do Iguaçu.
Aranha, P.E., Miranda, C.R., Magalhães, J.V.M. et al. 2011. Dynamic AspectsGoverning Cement-Plug Placement in Deepwater Wells. SPE Drill Compl 26 (3): 341-351. http://dx.doi.org/10.2118/140144-PA.
Bittleston, S.S.H., Ferguson, J., and Frigaard, I.A. 2002. Mud Removal andCement Placement During Primary Cementing of an Oil Well. J. Eng. Math. 43: 229-253. http://dx.doi.org/10.1023/A:1020370417367.
Campos, W., Lage, A.C.V.M., and Poggio Jr., A. 1989. A Transient Model ToSimulate the Free-Fall Effect During Cement Operation. 10th Brazilian Congressof Mechanical Engineering. pp. 403-406.
Dutra, E.S.S., Martins, A.L., Miranda. C.R. et al.2005. Dynamics of FluidSubstitution While Drilling and Completing Long Horizontal-Section Wells. PaperSPE 94623 presented at the SPE Latin American and Caribbean PetroleumEngineering Conference, Rio de Janeiro, Brazil, 20-23 June. http://dx.doi.org/10.2118/94623-MS.
Dutra, E.S.S., Naccache, M.F., Mendes, P.R.S. et al. 2004. Analysis ofInterface Between Newtonian and Non-Newtonian Fluids Inside Annular EccentricTubes. In Proceedings of the ASME International Mechanical EngineeringCongress and Exposition, 14-19 November, Anaheim, California. p. 787-793.New York, New York: American Society of Mechanical Engineers. http://dx.doi.org/10.1115/IMECE2004-59335.
Gomes, F.C. and Carvalho, M.S. 2010. An Asymptotic Cylindrical Model forWell Cementing Process. 13th Brazilian Congress of Thermal Sciences andEngineering, 5-10 December, Uberlândia.
Haut, R.C. and Crook, R.J. 1979. Primary Cementing: The Mud DisplacementProcess. SPE 8253 presented at the SPE Annual Technical Conference andExhibition. Las Vegas, Nevada, 23-26 September. http://dx.doi.org/10.2118/8253-MS.
Lockyear, C.F. and Hibbert, A.P. 1989. Integrated Primary Cementing StudyDefines Key Factors for Field Success. J. Pet. Tech. 41(12): 1320-1325. http://dx.doi.org/10.2118/18376-PA.
Miranda, C.R., Carvalho, K.T., Vargas, A.A. et al. 2007. Minimizing FluidContamination During Oilwell Operations. Offshore Mediterranean Conference,Ravenna, Italy.
Sauer, C.W. 1987. Mud Displacement During Cementing: A State of the Art.J. Pet. Tech. 39 (9): 1091-1101. http://dx.doi.org./10.2118/14197-PA.
Tehrani, A., Ferguson, J., and Bittleston, S.H. 1992. Laminar Displacementin Annuli: A Combined Experimental and Theoretical Study. Paper SPE 24569presented at the SPE Annual Technical Conference and Exhibition, Washington DC,4-7 October. http://dx.doi.org/10.2118/24569-MS.