Corrosion Management for Aging Pipelines--Experience From the Forties Field
- Jonathan Marsh (JP Kenny Caledonia Ltd/IONIK Consulting) | T. Teh (JP Kenny Caledonia Ltd/IONIK Consulting) | S. Ounnas (JP Kenny Caledonia Ltd/IONIK Consulting) | M. Richardson (Apache North Sea Ltd.)
- Document ID
- Society of Petroleum Engineers
- SPE Projects, Facilities & Construction
- Publication Date
- March 2009
- Document Type
- Journal Paper
- 1 - 7
- 2009. Society of Petroleum Engineers
- 2.4.3 Sand/Solids Control, 4.2.3 Materials and Corrosion, 6.5.2 Water use, produced water discharge and disposal, 4.3.4 Scale, 4.5 Offshore Facilities and Subsea Systems, 4.1.2 Separation and Treating, 4.1.5 Processing Equipment, 5.3.2 Multiphase Flow, 7.2.1 Risk, Uncertainty and Risk Assessment, 4.2 Pipelines, Flowlines and Risers, 5.2 Reservoir Fluid Dynamics, 1.10 Drilling Equipment, 4.2.4 Risers
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In 2003, Apache became the operator of the Forties Field. The field has now been in operation for 33 years and much of the infield pipeline system has exceeded its original design life of 20-25 years. Apache intends to continue production in the Forties Field for, potentially, in excess of a further 20 years. With that in mind, they have identified numerous issues with respect to corrosion management of the infield pipeline system. Since late 2006, the Forties Field infield pipeline corrosion and integrity management has been carried out by IONIK Consulting/JP Kenny Caledonia Ltd. Working closely with Apache, the infield pipeline system has been reviewed; a number of issues have been assessed and quantified; and practices with respect to corrosion management, corrosion monitoring, and inspection have been implemented. This document examines the issues identified, the corrosion management strategy put in place, and the inspection actions undertaken. Examples of issues identified with respect to corrosion management systems include a requirement for a dedicated pipeline corrosion management strategy, pipeline corrosion modeling, a corrosion risk assessment of the pipeline system, a review of corrosion inhibition and pigging, and a review of key performance indicators with emphasis on pipeline management. Specific corrosion issues identified include anode depletion, preferential weld corrosion, localized corrosion, and 6 o'clock corrosion. Examples of other factors identified have been potential risks from microbial and underdeposit corrosion caused by low flow rates. This publication provides an overview of these issues and the implementation of solutions, alongside changes to items such as documentation and modification of existing procedures, risk assessment, corrosion management, and the implementation of an intelligent pigging program.
|File Size||1012 KB||Number of Pages||7|
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