Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing
Reexamination Certificate
2005-12-27
2005-12-27
Marcantoni, Paul (Department: 1755)
Compositions: coating or plastic
Coating or plastic compositions
Inorganic settable ingredient containing
C106S677000, C106S678000, C106S724000
Reexamination Certificate
active
06979366
ABSTRACT:
The present invention provides methods of cementing pipe in well bores and low density cement compositions having enhanced compressive, tensile and bond strengths upon setting. The composition of the invention are basically comprised of a hydraulic cement, sufficient water to form a slurry and hollow glass microspheres surface treated with a mixture of organosilane coupling agents present in an amount sufficient to produce a cement composition density in the range of from about 6 to about 12 pounds per gallon.
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Brenneis Darrel C.
Chatterji Jiten
Cromwell Roger S.
King Bobby J.
Halliburton Energy Service,s Inc.
Marcantoni Paul
McAfee & Taft P.C.
Roddy Craig W.
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