Published December 2011
Protective properties of aminomethyl derivatives of hexamethylenglycol
N.R. SultanovaIt is known that in majority of cases when oil fields are developed through water injection to internal contour, damage is observed with microorganisms generated through biogenic sulfate reduction in reservoirs. The reason of sulfate reduction is live sulfate reducing bacteria (SRB). Hydrogen suphide generated at the result of damaging of oil reservoirs by SRB makes it difficult to operate fields, significantly increases oil field equipment corrosion, worsens quality of oil and gas, and causes in increase of costs spent on their processing. Also there are aggressive ions like Cl-, SO4-2, HCO3- in produced waters of oil - gas field wells. In this environment speed of corrosion reaches 0.1 g/m2 hour on steel plate. In this regard, the most universal method for protection of oil field equipment from corrosion is utilization of inhibitors with both antimicrobial and anticorrosion properties subsequently. With purpose of developing such inhibitors, three - component condensation of a number of compounds sustaining single and dual amine groups has been carried out with substances sustaining formaldehyde and hydroxyl group. Polyglycol fraction (Tboil=175-215OC) developed in Sumgayit city is used in compound sustaining hydroxyl group. As a compound sustaining amine group, monoethanol, morpholine, piperidine, asetamide was taken. It was defined that aminomethyl derivatives of synthesized glycol have anticorrosion property when mixed with 500 mg/l solution and aminomethyl derivatives of asetamide have both anticorrosion and antimicrobial properties. These may be used for protection from corrosion of basements and equipment in deep offshore oil and gas fields.
