| abstract |
Flowable and pumpable multi-component mixtures based on are describedna multi-phase mixture of water and oil, containing emulsifiersnand, if desired, additional soluble, emulsifiable and / orndispersible auxiliaries for their use in the context of soil digestionnby drilling and / or for further treatment of suchnSoil drilling. The characteristic of the invention lies in the usenof emulsifiers or emulsifier systems that are affected in each casenMulti-component mixture for temperature-controlled phase inversionnat a phase inversion temperature (PIT) within a temperature rangenlead, its upper limit so far below the working temperaturenof the multi-component mixture in the field of geological explorationnlies that the water-based portion of the multi-component mixture asndisperse (invert) phase in the closed oil phase (W / O invert emulsion)nis present, while the lower limit of this temperature range is the conversionnof the multi-component mixture to the O / W emulsion with closed aqueousnPhase enabled. Emulsifiers or are particularly suitablenEmulsifier system with a PIT in the range of 0 to 100 ° C, which is preferrednare at least partially non-ionic structure. The invention enablesnan optimization of the requirements for technical performance, ecologicalnCompatibility and cost / benefit ratio. |