CPC C09K 8/70 (2013.01) [C09K 8/665 (2013.01); C09K 8/68 (2013.01); C09K 8/805 (2013.01); C09K 8/88 (2013.01); E21B 43/26 (2013.01)] | 10 Claims |
1. A reactive composite that includes 40-90 vol. % magnesium powder and 10-60 vol. % carbonyl iron powder and 0.1-10 vol. % AlCl3 solid acid and PVA, said reactive composite is reactive in brine to generate local gas formation and energy release at temperatures of 40-60° C. for a 2-60 minute period.
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3. A reactive composite that includes A) 40-90 vol. % magnesium powder and 10-60 vol. % carbonyl iron powder and 0.1-10 vol. % AlCl3 solid acid and polymer; or B) a reactive core of calcium metal and a polymer and a polymer coating about said calcium metal and polymer mixture.
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