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苏联煤田地质钻探用的冲洗液,以前多为煤碱剂泥浆和钙处理泥浆等,近几年在冲洗液的类型和性能上都有了较大的变化。目前在广泛应用的各种冲洗液中,最有成效的
In the past, the rinsing liquid used for geological drilling in the coalfield of the Soviet Union was mostly coal-based agent slurry and calcium treatment slurry. In recent years, the type and performance of the rinse liquid have been greatly changed. Currently in a wide range of applications in a variety of flushing fluid, the most effective