Exploration & Production

Challenges and opportunities - drilling in MENA

rig 1061339 1920Tarek Khattab and Ahmet Aki from Halliburton discuss their drilling solutions and prospects in the Middle East. Read the full story in the latest issue of Oil Review Middle East (below), as well as insights from Weatherford experts

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Platts: OPEC July hits 2017 high of 32.8mn bpd on Libya recovery

Bouri NC 41 DP4 platformLibya's continued dramatic recovery from civil strife pushed OPEC's July output to yet another 2017 high, with the bloc producing 32.82mn bpd, according to the latest S&P Global Platts OPEC survey

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ADNOC in advanced discussions with potential partners for new offshore oil concession

Umm Shaif SupercomplexThe Abu Dhabi National Oil Company (ADNOC) have announced it is in advanced discussions with more than a dozen potential partners who have expressed a significant interest in the offshore concession, currently operated by the Abu Dhabi Marine Operating Company (ADMA-OPCO) that expires in March 2018

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Oil and gas drone market to generate US$1.15bn by the end of 2017

maxpixel.freegreatpicture.com Drone Aerial Photo Djee 1142182The latest research report from business intelligence provider Visiongain offers a comprehensive analysis of the Oil and Gas Drones market. Visiongain assesses that this market will generate $1.15 bn in 2017


In this latest report, Visiongain have provided 150 unique, in-depth tables, charts and graphs.

The report of the oil and gas drones market will provided forecasts and analysis from 2017-2027, oil & gas drones submarket forecasts from 2017-2027, a fixed-wing forecast 2017-2027, single rotor forecast 2017-2027, multi rotor forecast 2017-2027, hybrid & nano forecast 2017-2027, oil & gas inspection forecast 2017-2027, and an environmental impact assessment forecast 2017-2027. 

Oil & gas drones market forecasts from 2017-2027 with drivers and restraints for the regions including: Middle East,  Asia Pacific, Europe, North America and the Rest of the World, including Africa.  

Download the full report: https://www.reportbuyer.com/product/5042244/

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Corrosion basics: High-temperature corrosion

ORME feature

By Pierre R. Roberge. Article originally appeared in Materials Performance Magazine


High-temperature corrosion is a form of corrosion that does not require the presence of a liquid electrolyte. In this corrosion mechanism, metals react directly with gaseous atoms in the atmosphere rather than ions in solution. Sometimes, this type of damage is called “dry corrosion” or “scaling.” The first quantitative analysis to oxidation behavior was made in the early 1920s with the postulation of the parabolic-rate theory of oxidation by Tammann and, independently, by Pilling and Bedworth.

Although temperatures greater than approximately 90 or 150 °C are sometimes considered “high temperature” (e.g., for heated oil pipelines), this article is concerned primarily with temperatures greater than the “red-hot range,” primarily 650 °C and greater. 

Alloys often rely upon the oxidation reaction to develop a stable protective scale that resists further corrosion, such as sulfidation, carburization, and other forms of high-temperature attack. In general, the names of the corrosion mechanisms are determined by the dominant corrosion product(s). For example, oxidation (the general term for a variety of reactions) implies oxides, sulfidation indicates sulfides, sulfidation/oxidation indicates a combination of sulfides plus oxides, and carburization indicates carbides.1

Oxidizing environments refer to high-oxygen activities (concentrations) with excess oxygen. Reducing environments are characterized by low-oxygen activities, with no excess oxygen available. Clearly, oxide-scale formation is more limited under such reducing conditions. It is for this reason that reducing industrial environments are generally considered to be more corrosive than the oxidizing variety.

The properties of high-temperature oxide films, such as their thermodynamic stability, ionic-defect structure, and detailed morphology, play a crucial role in determining the oxidation resistance of a metal or alloy in a specific environment. High-temperature corrosion is a widespread problem in various industries, including:

Refining and petrochemical

Power generation (nuclear and fossil fuel)

Aerospace and gas turbine

Heat treating

Mineral and metallurgical processing

Chemical processing

Automotive

Pulp and paper

Waste incineration

Corrosion resistance at high temperatures stems from a combination of two basic factors: thermodynamics, which determines whether a corrosive reaction will proceed, and kinetics, which determines the rate at which the reaction may proceed. The rate of the reaction may be reduced by careful selection of alloying components, such as inclusion of a multivalent metal that can react with a greater number of oxidizing atoms.

The need for a careful study of the properties of a heat-resistant alloy and its behavior in the anticipated environment is of considerable importance in the selection of a suitable alloy for a particular service application. New alloys and non-metallic materials that are continually being made available to industry are making it possible to make better selections and to establish safe working limits within which the material can be expected to give satisfactory performance over a reasonable length of time.

This article was initially published in Materials Performance Magazine.

References

1 R.C. John, “Compilation and Use of Corrosion Data for Alloys in Various High-Temperature Gases,” CORROSION/99, paper no. 73 (Houston, TX: NACE, 1999).

This article is adapted by MP Technical Editor Norm Moriber from Corrosion Basics—An Introduction, Second Edition, Pierre R. Roberge, ed. (Houston, TX: NACE International, 2006), pp. 217-218.

About NACE International - www.nace.org

NACE International, The Worldwide Corrosion Authority, was established in 1943 by eleven corrosion engineers from the pipeline industry as the “National Association of Corrosion Engineers.”

Today, NACE serves nearly 36,000 members in over 130 countries and is recognized globally as the premier authority for corrosion control solutions. The organization offers technical training and certification programs, conferences, industry standards, reports, publications, technical journals, government relations activities and more.

NACE International is headquartered in Houston, Texas, with offices in San Diego, California; Kuala Lumpur, Malaysia; Shanghai, China, Sao Paulo, Brazil and Al-Khobar, Saudi Arabia.

Materials Performance (MP) magazine is the flagship publication of NACE International. Published monthly, MP is the world's largest circulation journal dedicated exclusively to corrosion prevention and control. 

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