Abstract
Chemical inhibitor field trial was conducted in one of the main companies in the field of exploration, production and transportation of crude oil and gas in the region. Effluent water, which is a byproduct of crude oil separation and processing from the gathering centers, was disposed of in evaporation pits. In the past few years, two effluent water disposal plants were constructed and commissioned is east and south Kuwait fields, for treating the effluent water collected from several gathering centers and dispose it by re-injecting in the disposal/injection wells. Effluent water is known for its high corrosivity and high content of chloride which could lead to premature failures at the EWDP facilities and injection lines. Various types of chemicals are used to control corrosion, scales and microbial growth in these facilities. In an effort to select proper inhibitor chemicals, a field trial had been carried out for five chemical vendors for various chemical formulations (corrosion inhibitor, scale inhibitor, oxygen scavenger, and biocide). This paper will focus on the methods used to evaluate the performance of the corrosion inhibitor and biocide.
