| abstract |
Itnthe use of methacrylate derivatives for thickening becomes more salinenProposed media in the exploration of oil and / or gas deposits,nwherein the saline media has a specific gravity of from 1.2 ton2.5 kg / L. The respective methacrylate derivatives, of whichnmono- and / or difunctional variants are particularly suitablenhave been shown in a volume ratio of 100 to 1: 1 andnused in an amount of 0.5 to 15 vol .-%. The thickening of thenSaline media takes priority as gel formation, with the help ofnof radical starters and at elevatednTemperatures can be made. As aqueous media are in particularnCompletion Brines, Drilling and Drill-in Fluids and Fracturing Fluidsnand acidsnto be considered with high salt contents. The methacrylate derivatives havenone pronouncedngood solubilitynin heavy salt solutions,nas they are primarily used in up-stream processes of the oil industry.nIt cannThey are also polymerized subterranean, while being simultaneouslyna high temperature stabilitynhave. |