Abstract
We have previously developed resin EP-1 for the oil well pipe having both pH2 level of acid-resistant and 200 ℃ level of heat resistance, for use of deep well and enhanced oil recovery (EOR), and its acid resistance was evaluated by GPI standard simple corrosion resistance degradation test method. Furthermore, in this paper, we have confirmed the degree of degradation of acetic acid-dipped products resin EP-1 evaluated in the GPI standard simple corrosion resistance degradation test method and original cured one by the measurement of thermal analysis, as well as heat resistance change.