Well-History-Based Prediction of Injectivity Decline during Seawater Flooding

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dc.contributor.authorBedrikovetski, P.
dc.contributor.authorda Silva, M.
dc.contributor.authorda Silva, M.
dc.contributor.authorSiqueira, A.
dc.contributor.authorde Souza, A.
dc.contributor.authorFurtado, C.
dc.contributor.conferenceSPE European Formation Damage Conference (6th : 25-27 May 2005 : Scheveningen, The Netherlands)
dc.date.issued2005
dc.descriptionSPE paper 93886
dc.description.abstractDrastic loss of injectivity during waterflood using sea/produced water has been reported worldwide. It happens due to capture of solid and liquid particles from the injected water by the rock resulting in permeability decline, and also due to formation of low permeability cake on the wellbore. Both factors result in injectivity impairment. Reliable prediction of injectivity decline should be based on mathematical modelling using coefficients that are well known for a specific well/field. The mathematical model for injectivity damage contains four parameters: filtration and formation damage coefficients, critical porosity ratio and filter cake permeability. Nevertheless, just three constants can be extracted from two-piece-wise-linear injectivity decline curve. In the current paper we propose the correlation between the formation damage coefficient and the critical porosity fraction to be used as a fourth equation allowing for characterization of injectivity damage system. Eighteen well data have been treated, and values for four parameters of injectivity damage have been calculated. The obtained values have the same order of magnitude as those obtained from laboratory corefloods. It validates the proposal to use the correlation between the formation damage coefficient and the critical porosity fraction for characterisation of injectivity damage system from well history for the purpose of further prediction of well injectivity. Copyright 2005, Society of Petroleum Engineers.
dc.description.statementofresponsibilityBedrikovetski, P., da Silva, M. J., da Silva, M. F., Siqueira, A.G., de Souza, A. L. S., and Furtado, C.
dc.description.urihttp://www.proceedings.com/00161.html
dc.identifier.citationProceedings of the SPE 6th European Formation Damage Conference,, 2005, 2005, pp.17-27
dc.identifier.isbn9781604235418
dc.identifier.urihttp://hdl.handle.net/2440/47467
dc.language.isoen
dc.publisherSociety of Petroleum Engineers
dc.relation.ispartof6TH European Formation Damage Conference 2005: Delivering Sustained Production
dc.titleWell-History-Based Prediction of Injectivity Decline during Seawater Flooding
dc.typeConference paper
pubs.publication-statusPublished

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