| 摘要 |
1,238,877. Consolidating earth formations. PERMEATOR CORP. 9 Sept., 1968 [8 Sept., 1967], No. 42812/68. Heading E1F. Siliceous materials in subsurface earth formation are consolidated by injecting aqueous solutions of alkaline earth metal hydroxides or precursors thereof under suitable conditions of temperature and pressure. |
