| 摘要 |
A liquid for damping and capital repair of boreholes comprises water, water-soluble salts, water-soluble salt-resistant polymer (carboxymethyloxyethyl cellulose and/or biopolymer of xantane type), cellulose-containing hydrophilic solid particles and additionally comprises technical condensed lignosulphonates as a sealant and stabilizer of sediment stability, a product of fatty acid neutralization as surface-active substance, milled chalk and/or marble aggregate, and/or barite as a weighting agent, at that polyacrylamide and/or oxyethylcellulose are used as salt-resistant water-soluble polymer.
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