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Corrosion Control In Water Injection Pipelines

Picture for Corrosion Control In Water Injection Pipelines
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Dubai Petroleum (the Operator) operates five offshore oil fields in the Emirate of Dubai (Fateh, South West Fateh, Falah, Jallilah and Rashid), in addition to various onshore gas production, storage, distribution and import facilities, and LNG import facilities. The assets within these offshore fields consist of approximately 80 platforms of various sizes, comprising central bridge linked processing facilities in Fateh and South West Fateh, and outlying normally unmanned wellhead production platforms. These platforms are linked by a network of over 150 subsea pipelines, of which over 30 are presently operational sea water injection pipelines.

Product Number: 51322-17692-SG
Author: Jonathan Marsh
Publication Date: 2022
Industries: Corrosion Monitoring and Control , Coatings and Linings , Coatings
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Dubai Petroleum (the Operator) operates five oil fields in the offshore Dubai area of the United Arab Emirates. Within these operated fields there is a network of over 30 unlined carbon steel sea water injection pipelines that are presently in use, with abandoned or mothballed pipelines taking this number to over 50. This publication discusses the experience of the Operator, where the operating life of these pipelines has typically exceeded 20 years, and on occasion has exceeded 40 years. This is compared with the experience of the UK sector, where failures in as little as four years have been noted and many pipelines have failed to reach 15 years of service. The prevalent corrosion mechanisms are discussed and a comparison of corrosion control measures such as de-aeration and microbial control is made. An assessment of the Operator’s pipeline corrosion, chemical, monitoring and inspection data is discussed. Evidence is presented that operational pigging of sea water injection pipelines can reduce corrosion rates and significantly extent pipeline life in combination with other industry standard corrosion control measures such as de-aeration, chlorination and batch biocide treatment.

Dubai Petroleum (the Operator) operates five oil fields in the offshore Dubai area of the United Arab Emirates. Within these operated fields there is a network of over 30 unlined carbon steel sea water injection pipelines that are presently in use, with abandoned or mothballed pipelines taking this number to over 50. This publication discusses the experience of the Operator, where the operating life of these pipelines has typically exceeded 20 years, and on occasion has exceeded 40 years. This is compared with the experience of the UK sector, where failures in as little as four years have been noted and many pipelines have failed to reach 15 years of service. The prevalent corrosion mechanisms are discussed and a comparison of corrosion control measures such as de-aeration and microbial control is made. An assessment of the Operator’s pipeline corrosion, chemical, monitoring and inspection data is discussed. Evidence is presented that operational pigging of sea water injection pipelines can reduce corrosion rates and significantly extent pipeline life in combination with other industry standard corrosion control measures such as de-aeration, chlorination and batch biocide treatment.

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Picture for Under-Deposit Corrosion in a Sub-Sea Water Injection Pipeline—A Case Study
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Under-Deposit Corrosion in a Sub-Sea Water Injection Pipeline—A Case Study

Product Number: 51317--8973-SG
ISBN: 8973 2017 CP
Author: Pavan Shukla
Publication Date: 2017
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This paper pertains to a study of an API 5L X-60, Carbon steel, injection water pipeline, which failed prematurely in 4 years after commissioning due to under-deposit corrosion. A detailed study was carried out to investigate the failure causes.

 
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Quantification of Microbiologically Influenced Corrosion in Injection Water Pipelines

Product Number: 51317--9343-SG
ISBN: 9343 2017 CP
Author: Uffe Thomsen
Publication Date: 2017
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MIC-causing microorganisms were investigated in a 16” diameter and 9.6 km long injection water pipeline. Nitrate was added to the water and pigging debris from the pipeline showed that both sulfate-reducing bacteria (SRB), nitrate-utilizing bacteria, and methanogens were present in numbers of 105 – 106 cells/g.
Picture for 01010 CORROSION MONITORING AND CONTROL
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01010 CORROSION MONITORING AND CONTROL OF SEAWATER INJECTION SYSTEMS USING AN EXPERT SYSTEM APPROACH

Product Number: 51300-01010-SG
ISBN: 01010 2001 CP
Author: Cynthia Andrade, Walmar Baptista, Luis Augusto Correa, and Nair Domingues de Freitas
Publication Date: 2001
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This paper describes those strategies to minimize the risks associated with the seawater injection process and to reach production targets. Also, an expert system developed for seawater injection plants is introduced.
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