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A study of the corrosion resistance of multiple high Nitrogen, high Manganese austenitic stainless steels is presented, focusing on a newly developed alloy with increased pitting resistance. The alloys vary principally by the amount of Molybdenum, Nickel, Manganese, Chromium and Nitrogen.
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Drill collars are thick-walled pipes that provide stiffness and concentration of mass at or near the bit and are among the main components of the bottom-hole assembly (BHA). The non-magnetic drill collars (NMDCs) represent a sub-category of proprietary drill collars that enable magnetic surveying and directional drilling. Due to their cross-section, NMDCs are inherently heavy and can convey a strong push on the drill bit itself, minimizing cutting instability problems, while their strength is sufficient to prevent buckling while drilling.
2009 EDITION - HISTORICAL DOCUMENT.
Selection and qualification of carbon and low-alloy steels, corrosion-resistant alloys, and other alloys for service in oil and natural gas production and treatment plants with H2S-containing environments.
HISTORICAL DOWNLOADABLE 2015 EDITION.
Selection and qualification of carbon and low-alloy steels, corrosion-resistant alloys, and other alloys for service in equipment in oil and natural gas production and NG treatment plants in H2S-containing
Note: This document was originally published with errors in Table A.16, page 3-32. These identified errors are corrected. Errata sheet is included.
NACE MR0175/ISO 15156 gives requirements and recommendations for the selection and qualification of carbon and low-alloy steels, corrosion-resistant alloys, and other alloys for service in equipment used in oil and natural gas production and natural gas treatment plants in H2S-containing environments, whose failure could pose a risk to the health and safety of the public and personnel or to the equipment itself.
To limit the impact of greenhouse gas emissions on climate change, the use of conventional hydrocarbons needs to be reduced significantly. The global demand for biofuels is thus expected to grow during the present decade. Hydrogenated Vegetable Oil (HVO) is one of the predominant biofuels produced by converting lipidic feedstocks (vegetable oils, animal fats, waste cooking oils, …) through a conventional refinery hydrotreatment (HDT) process.
Biofuels are renewable energy resources to replace fossil fuels since the latter are depleting and their application lead to serious environmental impacts.1 Fast pyrolysis is an industrial approach to convert a larger amount of raw biomass into bio-oils in a timely fashion. However, their poor qualities, such as low thermal stability, high water and acid contents, and low heating value, make them not ready f to be as transportation fuels directly.2,3 Moreover, their high water content and acidity can introduce corrosion concern during handling, storage , transportation and upgrading.4
Examines varying procedures used by industry to protect austenitic stainless steel equipment while idle. Basic protection methods include nitrogen purging, alkaline wash solutions, and dry air purging. Protection of reactors is also addressed.
Today hydrogen for use as fuel for vehicles is getting more and more attention as an alternative to vehicles using fossil-based fuels. Hydrogen is used in both electric fuel cell cars and in heavy vehicles using direct combustion of hydrogen. Such vehicles require stainless tubing for transport of the hydrogen and for bosses to composite tanks in addition to tubing and fittings in hydrogen fueling stations.