Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing
Reexamination Certificate
2011-03-01
2011-03-01
Marcantoni, Paul (Department: 1731)
Compositions: coating or plastic
Coating or plastic compositions
Inorganic settable ingredient containing
C106S823000, C166S293000
Reexamination Certificate
active
07896964
ABSTRACT:
The invention provides a cementitious composition for oilfield application comprising an organic retarder having at least one carboxylate group and copper ions such that a complex is made between copper ion and carboxylate group. Also a method to retard cementitious composition for oilfield application is disclosed, the method comprising the unique double step of adding an organic retarder having at least one carboxylate group and adding copper ions such that a complex is made between copper ion and carboxylate group.
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patent: 5547506 (1996-08-01), Rae et al.
patent: 6173778 (2001-01-01), Rae et al.
patent: 6613142 (2003-09-01), Di Lullo Arias et al.
patent: 6907928 (2005-06-01), Di Lullo Arias et al.
Boulard Stephane
Lee Jesse
Abrell Matthias
Cate David
Marcantoni Paul
Nava Robin
Schlumberger Technology Corporation
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