Hydrothermal cement and method of cementing well bores

摘要: A hydrothermal cement composition consisting essentially of (a) a polyvalent metal ion source, (b) water, and (c) hydratable silica source wherein the becomes available for chemical combination with salt upon application heat. method cementing string pipe in bore hole including steps preparing such composition, pumping into annular space between walls hole, allowing to set due temperature or by passage time both.