METHOD OF TREATING A WELLBORE HAVING ANNULAR ISOLATION SYSTEM
A well treatment fluid containing borated galactomannan may be used to isolate a productive zone in a well having multiple productive zones. The fluid is particularly useful in treatment of wells containing a mechanical zonal isolation system in the productive zone of interest. The fluid is pumped i...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
16.01.2013
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Subjects | |
Online Access | Get full text |
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Summary: | A well treatment fluid containing borated galactomannan may be used to isolate a productive zone in a well having multiple productive zones. The fluid is particularly useful in treatment of wells containing a mechanical zonal isolation system in the productive zone of interest. The fluid is pumped into the well in a substantially non-hydrated form. The well treatment fluid is therefore highly effective in preferentially sealing or blocking productive zones in the formation since delayed hydration of the fluid may be controlled for up to several hours. |
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Bibliography: | Application Number: EP20110707989 |