USE OF POLYETHER-CONTAINING COPOLYMERS IN THE CEMENTING OF BOREHOLES

摘要

What is proposed is the use of a copolymer with two monomer components: a) an olefinically unsaturated monocarboxylic acid or an ester thereof or salt thereof and b) an ether component of the general formula (I) where R1 and R2 are each independently hydrogen or a hydrocarbyl radical having 1 to 5 carbon atoms, especially a C1-5-alkyl radical, m and n are each independently 2, 3, 4 or 5, p = 0, 1, 2 or 3, and x and y are each independently integers from 1 to 350, in cementing of boreholes.