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US 5,547,027 AGranted
Low temperature, low rheology synthetic cement
AssigneeDowell, a division of Schlumberger Technology Corporation
InventorsKeng S. Chan, Thomas J. Griffin, Jr.
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Abstract
A low-temperature, low-rheology synthetic cement comprises an epoxy resin, catalyst and hardener and further including an aromatic solvent have the formula ##STR1## wherein R and R' are independently selected from hydrogen and C1 to C4 hydrocarbons.
Claims2
A method of cementing a well penetrating a subterranean formation comprising the steps of:
- (a) providing a low-temperature, low-rheology cement composition comprising
- (i) an epoxy resin;
- (ii) a resin catalyst;
- (iii) a hardener;
- and
- (iv) an aromatic solvent in a ratio of 10 to 100% by weight of the epoxy resin;
- and
- (b) pumping the cement composition under pressure into the well, the well having a casing along its length, their being an annular space between the casing and the wellbore, wherein the cement composition is of a sufficiently low viscosity that it is capable of being pumped into the subterranean formation at temperatures at or below 20 degrees C;
- (c) further wherein the step of pumping comprises pumping the cement composition into an annular space between the casing and the wellbore.
6 more elements
Dependencies are inferred from the claim text.