Corrosion Inhibition Studies on Steel tools by Some Surfactants In Drill-mud Environment of Oil Wells

Document Type : Original Article

Authors

1 Production Department-Drilling Fluids Laboratory, Egyptian Petroleum Research Institute (EPRI), Cairo, Egypt.

2 Egyptian Chemistry Administration, Cairo, Egypt.

Abstract

Abstract
In deep wells and ultra-deep wells drilling beside the shores, the corrosion of drilling tools in oil fields is a common phenomenon. It is presumed that drilling corrosion loss of drill pipes scrap had accounts for a significant proportion of the entire cost of drilling. The most common way to control the corrosion in oil or gas wells is by chemically corrosion inhibition methods using inhibitors, which added to reduce the total drilling costs and enhance the drilling safety. In this research, we discussed the different effects of some new prepared cationic and non-ionic surfactants based on nitrogen and oxygen atoms as corrosion inhibitors additives for water-based drilling fluids. The corrosion rates were reported, the evaluation of water-based drilling fluids studied according to API specifications through the determination of rheological and filtration properties. The obtained results revealed that these prepared compounds regard as good corrosion inhibitors for the water-based mud.

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