Evaluation of the effectiveness of hydrate-formation inhibitors by the isothermal method

Abstract

This paper is devoted to the research of inhibitors of gas hydrate formation by the isothermal method in the laboratory in order to evaluate their effectiveness and select the most effective ones for conducting field tests under the conditions of the Eastern section of the Orenburg oil and gas condensate field (ESOOGCF). Within the research, 12 reagents from different manufacturers were tested. Evaluation of the effectiveness of inhibitors was carried out by the isothermal method under conditions that simulating production. As a result of testing, the most effective inhibitors and their dosages that minimize the temperature of the onset of hydrate formation were determined. Recommendations were given to field tests of inhibitors at the ESOOGCF. According to the results of field testing of reagent №3, it was found that the use of the test reagent as an inhibitor of gas hydrate formation is economically advantageous in the case of equal technical indicators of the base (methanol) and test inhibitors.