Invention Grant
- Patent Title: Compositions and methods for well cementing
- Patent Title (中): 用于固井的组合物和方法
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Application No.: US13171043Application Date: 2011-06-28
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Publication No.: US08550162B2Publication Date: 2013-10-08
- Inventor: Michel Michaux , Jean-Philippe Caritey
- Applicant: Michel Michaux , Jean-Philippe Caritey
- 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: EP10290376 20100707
- Main IPC: E21B33/13
- IPC: E21B33/13 ; C04B24/26 ; C04B28/02 ; C04B14/00 ; C08K3/00 ; C08K5/00 ; C08K5/53 ; C08K3/38 ; C08G18/48
Abstract:
A retarder aid increases the applicable temperature range of phosphonate/borate cement-retarder systems to at least 302° C. (575° F.), and 207 MPa (30,000 psi). The retarder aid comprises a terpolymer of styrene sulfonate, maleic anhydride and acrylate of ethylene oxide. Cement slurries containing the retarder and retarder aid may be used for both primary-cementing and remedial-cementing applications.
Public/Granted literature
- US20120006546A1 Compositions And Methods For Well Cementing Public/Granted day:2012-01-12
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