Acidic attack of cement based materials under the common action of high, ambient temperature and pressure

摘要: Abstract The cement materials in geothermal bore holes used to be exposed the acidic attack under common action of ambient high, temperatures and pressure. As it is known waters deep wells are usually very aggressive applied cementing materials. Acidic aggressivity a dominating type. Therefore, interest ensuring life service material should high resistant. But crucial problem due fact that practically all-protective measurements like e.g. choice cement, increased density others weak insufficient. One presumption resistance correct evaluation cooperating factors conditioning its environment. Both complex character depending on several factors. This complexness, as rule, not taken into consideration. However, such an current practice entirely unsatisfied incorrect. further These subject presented paper showing also complexness point at issue.