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Novel Solution For Corrosion Coupon Access Fitting Abandonment

Novel Solution For Corrosion Coupon Access Fitting Abandonment
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The use of access fitting for intrusive corrosion monitoring tools is a common practice in the Oil & Gas industry; however, the Company (Petroleum Development Oman) has faced several difficulties including a recent incident during retrieval operations which has led to suspend, or significantly reduced the use of corrosion coupons and probes, decrease the frequency of retrieval, and eliminate its use in new projects. 

Product Number: 51322-18107-SG
Author: Monica Fernandez, Malik Shereiqi, Badar Habsi, Samuel Jarratt
Publication Date: 2022
Industry: Corrosion Monitoring and Control
$0.00
$20.00
$20.00

The use of access fitting for intrusive corrosion monitoring tools is a common practice in the Oil & Gas industry; however, the Company has faced several difficulties including a recent incident during retrieval operations which has led to suspend, or significantly reduced the use of corrosion coupons and probes, decreasing the frequency of retrieval, and eliminating its use in new projects. In order to reduce the risk, it was decided to decrease 91% the use of corrosion coupons, hence suspending the retrieval activities in those locations. Therefore, more than 300 access fittings / locations were no longer required. These locations, un-attended, might result in dead legs (corrosion threat) which could create a possible leak path in the pipeline systems. In that sense, there was an urgent need to define a safe, efficient and permanent solution for the abandonment of the existing access fittings. Several options were reviewed, considering technical aspects as well as costs.

The use of access fitting for intrusive corrosion monitoring tools is a common practice in the Oil & Gas industry; however, the Company has faced several difficulties including a recent incident during retrieval operations which has led to suspend, or significantly reduced the use of corrosion coupons and probes, decreasing the frequency of retrieval, and eliminating its use in new projects. In order to reduce the risk, it was decided to decrease 91% the use of corrosion coupons, hence suspending the retrieval activities in those locations. Therefore, more than 300 access fittings / locations were no longer required. These locations, un-attended, might result in dead legs (corrosion threat) which could create a possible leak path in the pipeline systems. In that sense, there was an urgent need to define a safe, efficient and permanent solution for the abandonment of the existing access fittings. Several options were reviewed, considering technical aspects as well as costs.

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