Method of completing a well in an unconsolidated formation

This invention relates to a method of completing a well in a poorly consolidated formation-bearing hydrocarbon to minimize flow of particulates such as sand into a wellbore. The invention proposes a screen-less completion method that can be carried out with coiled tubing equipments. Herein is descri...

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Bibliographic Details
Main Authors Acock, Andrew, Hoover, Steve
Format Patent
LanguageEnglish
Published 11.05.2004
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Summary:This invention relates to a method of completing a well in a poorly consolidated formation-bearing hydrocarbon to minimize flow of particulates such as sand into a wellbore. The invention proposes a screen-less completion method that can be carried out with coiled tubing equipments. Herein is described a method of completing an interval of a cased well drilled through incompetent formation. This method includes a combination of three successive operations: zero-degree phasing perforation of a relatively small portion of the interval to be completed, consolidation of the formation zone around the perforations and injection of a propped fracturing fluid above fracture pressure to create a gap between the cement and the borehole and pack this gap with a proppant held by a proppant flowback-retention agent.