twitter Facebook Linkedin acp Contact Us

Pipeline corrosion and how to prevent it

Pipeline corrosion and how to prevent it - Image credit to Peter π

Page 2 of 2

Corrosion Prevention

Design Considerations and Practices for Corrosion Prevention:

1. The designer must be able to determine the inter-relationship of various materials within a material system that can influence the corrosion process.

2. The configuration of the material system as it affects the presence and conditions of a corrodent.

3. The function of the operating system as it influences the generation and distribution of stress, erosion and wear.

4. Active corrosion prevention systems that can only be incorporated into the system design.

Material Compatibility Considerations for Corrosion Prevention:

There are several characteristics that influence material compatibility. They are:

1. The component metals and other materials of construction and the galvanic relationships they may establish.

2. The relative size of anode to cathode in corroding couples.

3. The geometric relationships of, and the dimensions defining dissimilar materials.

4. The degree and extent of exposure to corrosive environment.

5. The electrical and electrochemical properties of the environment and corroding couples.

6. The thermal properties and temperature variations.

7. The fluid flow characteristics.

8. The chemical compositions of aggressive agents in solvents and waters.

9. The sources and conductive paths of stray direct currents.

10. The development of corrosive reactant products.

11.  The impact of the effect on performance.

12.  The criticality of possible failures.

Conclusion

Corrosion has always been a significant problem both in the water and the petroleum industry because of necessary replacement costs and downtime associated therewith. Present methodology encourages inhibiting the corrosion of metal surfaces in crude oil and water/wastewater pipelines. The hydrocarbons in these pipelines have water present therein. Since water and oil don’t mix, the water separates from the hydrocarbons. Water then accumulates along the bottom quadrant of the pipelines and its persistent contact with the metal surfaces, if left untreated, results in the corrosion of the metal.

Chikezie Nwaoha, B.Eng and Odinakachi John Okorie, B.Eng

The Bell team in Richards Bay consists of more than 800 machinists, welders, and assemblers. (Image source: Bell)

GFE Power Product’s extensive range covers generators from 10 kVA up to 3,000 kVA. (Image source: GFE Power Products)

The funding is the largest-ever equity raise in the minigrid industry according to Husk. (Image source: Adobe Stock)

The initiative will help African contractors participate in annual infrastructure investments. (Image source: Afreximbank)

ITS has evolved into a sophisticated systems approach, providing numerous opportunities to revolutionise road networks. (Image source: Adobe Stock)

Invest International’s Lara Muller; Ivory Coast Minister of Finance and Economy, Adam Coulibaly; and Ambassador Designate to Ivory Coast, Jeroen Kelderhuis. (Image source: Invest International)

The Yellow Metal Machine Rental team with some Wacker Neuson equipment. (Image source: Wacker Neuson)

Although displaying resilience, the report warns that African banks remain exposed to physical climate risks due to both sovereign and industry lending. (Image source: Adobe Stock)

WAA and VCMI will seek to establish regulatory frameworks to enable access to high integrity and fair voluntary carbon markets for WAA member countries. (Image source: Adobe Stock)

The parties will also promote the mutual exchange of information and expertise in the field of export credit policies and practices. (Image source: TBD Group)

Inside Condra’s Johannesburg factory: an overhead crane positions an electric motor during assembly of hoist and crab. (Image source: Condra)

IVECO is renewing its entire product range, all at once. (Image source: IVECO)

The MoU was signed alongside the Africa Health Business Symposium. (Image source: Africa CDC)

Both the IMF and EIU expect SSA to rank as the world’s second fastest growing economy in 2024. (Image source: Adobe Stock)

There has been a focus on the sugar industry. (Image source: Adobe Stock)

At WFES, Gotion High-tech will showcase its latest products and leading green energy solutions at its booth. (Image source: Gotion High-tech)

The new Perkins 5012 is a full-authority electronic engine optimised and purpose-built for power generation applications. (Image source: Perkins)

SSAB will begin deliveries of the new products in 2026.

The key issues restricting sub-Saharan Africa’s manufacturing sector will be unpacked at Manufacturing Indaba later this year. (Image source: Adobe Stock)

Through the innovative solution, each vessel can fill two tank containers on average between two ports. (Image source: Maersk)

Hyphen is developing sub-Saharan Africa’s largest, most advanced and only fully-vertical integrated green hydrogen project. (Image source: Hyphen)

According to Liebherr, the Used Equipment Marketplace is extremely user-friendly. (Image source: Liebherr)

Electricity storage will be pivotal in unlocking renewable projects and meeting energy demand. (Image source: Adobe Stock)

With RFID, assets can be given unique digital identities that enable users to identify and locate them all at once, from a distance, in real time. (Image source: Brady)

Africa Data Centres and DPA SA have broken ground on their solar farm in the Free State. (Image source: Africa Data Centres)

A Cat PM310 Cold Planer in action. (Image source: Caterpillar)

A larger stockholding of WEG products facilitates ready access for customers. (Image source: WEG Africa)

African nations have turned to the concept of power pools to address the continent's energy deficit and foster regional cooperation. (Image source: Synergy Consulting)

Dietmar Siersdorfer is expanding his role as Middle East managing director at Siemens Energy to include Africa. (Image source: Siemens Energy)

SEW-EURODRIVE is aggressively driving its African resource expansion by focusing this year on Botswana, Zimbabwe, Eswatini and Mozambique. (Image source: SEW EURODRIVE)