METHOD OF REMOVING FILTER CAKE

A filter cake deposited by a drilling fluid, drill-in fluid or fluid loss control pill may be removed from a wellbore by introducing into the wellbore a dispersing agent of an organic amino phosphonic acid, ester or salt. The dispersing agent forms a dispersion containing at least a portion of the d...

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Bibliographic Details
Main Authors KALFAYAN, LEONARD J, JAVORA, PAUL H, BEALL, BRIAN B, QU, QI
Format Patent
LanguageEnglish
French
Published 12.09.2008
Subjects
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Summary:A filter cake deposited by a drilling fluid, drill-in fluid or fluid loss control pill may be removed from a wellbore by introducing into the wellbore a dispersing agent of an organic amino phosphonic acid, ester or salt. The dispersing agent forms a dispersion containing at least a portion of the drilled solids. The dispersing agent may be introduced into the wellbore as a component of a filter cake removal treatment fluid or either prior to or after introduction of the filter cake removal treatment fluid. L'invention concerne l'élimination d'un puits de forage d'un gâteau de filtre, déposé par une boue de forage, une boue de forage spécifique ou un agent anti-perte de fluide, par introduction dans le puits de forage d'un agent dispersant contenant un acide, un ester ou un sel amino phosphonique organique. L'agent dispersant forme une dispersion contenant au moins une partie des solides forés. L'agent dispersant peut être introduit dans le puits de forage comme composant d'un fluide de traitement d'élimination de gâteau de filtre, soit avant, soit après l'introduction du fluide de traitement d'élimination du gâteau de filtre.
Bibliography:Application Number: WO2008US55022