Experimental Investigation of Pipeline Corrosion in a Polluted Niger Delta River
International Journal of Oil, Gas and Coal Engineering
Volume 8, Issue 1, January 2020, Pages: 17-21
Received: Dec. 16, 2019; Accepted: Jan. 9, 2020; Published: Jan. 21, 2020
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Odutola Toyin Olabisi, Department of Petroleum and Gas Engineering, University of Port Harcourt, Choba, Nigeria
Amobi Chukwuka, Department of Petroleum and Gas Engineering, University of Port Harcourt, Choba, Nigeria
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Several networks of pipelines in Nigeria oil and gas industry have failed catastrophically in the last two decades because most oil pipelines operate in a corrosive environment and transport corrosive fluids. This research experimentally investigates the corrosion of a carbon steel pipeline immersed in a typical Niger Delta Offshore Environment. The experiment was carried out using the gravimetric (weight loss) method. The carbon steel coupon was immersed in a sample of water collected from the Niger Delta sea and in seawater polluted by 0.5mol/dm3, 1.0mol/dm3, 1.5mol/dm3 and 2.0mol/dm3 tetraoxosulphate (VI) acid respectively. The coupons were retrieved and examined at 4-hour interval. It was discovered that in an unpolluted state, the seawater was not corrosive. However, when polluted by 0.5mol/dm3, 1.0mol/dm3, 1.5mol/dm3 and 2.0mol/dm3 tetraoxosulphate (VI) acid, corrosion occurred. The highest rate of corrosion was observed in the coupon dipped into the seawater sample polluted by 2.0mol/dm3 of tetraoxosulphate (vi) acid and the lowest corrosion rate observed in the least polluted seawater 0.5mol/dm3. Corrosion rate increased with increasing pollutants; therefore, it is imperative for oil operators to carefully dispose of their waste to prevent rapid corrosion of subsea pipelines and other offshore facilities.
Corrosion, Niger Delta, Carbon Steel Pipes, Pollution
To cite this article
Odutola Toyin Olabisi, Amobi Chukwuka, Experimental Investigation of Pipeline Corrosion in a Polluted Niger Delta River, International Journal of Oil, Gas and Coal Engineering. Vol. 8, No. 1, 2020, pp. 17-21. doi: 10.11648/j.ogce.20200801.13
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