Wells – Processes – Cementing – plugging or consolidating
Patent
1976-06-28
1978-01-24
Novosad, Stephen J.
Wells
Processes
Cementing, plugging or consolidating
106 97, E21B 3314
Patent
active
040698700
ABSTRACT:
A high temperature cement system including a carbon-containing, low volatile material additive admixed with cement in proportions sufficient to provide a fixed carbon content of at least 0.02 wt.%. Additives include anthracite, calcined coke, uncalcined coke and burned oil shale.
REFERENCES:
patent: 3036633 (1962-05-01), Mayhew
patent: 3376146 (1968-04-01), Mitchell
patent: 4006031 (1977-02-01), Ferch et al.
Hartman Richard C.
Novosad Stephen J.
Sandford Dean
Union Oil Company of California
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