Invention Grant
- Patent Title: Aqueous resin compositions and methods for cement repair
- Patent Title (中): 水性树脂组合物和水泥修补方法
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Application No.: US12622023Application Date: 2009-11-19
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Publication No.: US08967254B2Publication Date: 2015-03-03
- Inventor: Clara Carelli , Sylvaine Le Roy-Delage
- Applicant: Clara Carelli , Sylvaine Le Roy-Delage
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Michael Dae
- Priority: EP08170062 20081127
- Main IPC: C09K8/00
- IPC: C09K8/00 ; C09K8/42 ; C09K8/44 ; C04B26/14 ; C09D5/34 ; C09D163/00 ; C04B111/00
Abstract:
A composition for repairing voids or cracks in a cement sheath or plug comprises an aqueous epoxy resin, a hardener, an alkali-swellable material and an aqueous carrier fluid. The particle size of the alkali-swellable material is preferably smaller than 200 nanometers, thereby allowing the composition to penetrate cracks as small as 60 micrometers. A method for repairing voids or cracks in a cement sheath, thereby restoring zonal isolation, comprises preparing the composition, injecting the composition into voids or cracks in a cement sheath or plug and allowing the composition to viscosify and harden.
Public/Granted literature
- US20100137473A1 AQUEOUS RESIN COMPOSITIONS AND METHODS FOR CEMENT REPAIR Public/Granted day:2010-06-03
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