A Study of Corrosion of Oil Well Cement with Energy Spectrum Analysis

doi:10.3863/j.issn.1000-2634.1998.03.020

西南石油大学学报(自然科学版) ›› 1998, Vol. 20 ›› Issue (3): 72-74.DOI: 10.3863/j.issn.1000-2634.1998.03.020

• 化学工程 • Previous Articles Next Articles

A Study of Corrosion of Oil Well Cement with Energy Spectrum Analysis

Liao Gang ¹ Yang Yuan-guang ² Chen Da-jun³

( Dept. of Chemical Engineering, SWPI,Sichuan, 637001 )

Received:1998-02-20 Revised:1900-01-01 Online:1998-08-20 Published:1998-08-20
Contact: LiaoGang

Abstract

Abstract: Two samples of oil well cement ( one was added with silica fume and the other was not ) were soaked in aqueous solutions containing different ions, and
the resultant element concentrations within the sam-ples were determined with energy spectrometry. It was found that Cl - and SO42 - had seeped into
the cement while Mg2 + had not, and silica fume can hinder diffusion of the ions. It is pointed out in this paper that the diffusion of SO42 - ions within
the cement is not only a physical but also a chemical process. The key to prevent corrosion by SO42 - is to change the composition of the resulting hydrated product.

Key words: Oil well cement, Corrosion, Energy spec-trometry, Composition, Diffusion

CLC Number:

TE256.5

Liao Gang Yang Yuan-guang Chen Da-jun. A Study of Corrosion of Oil Well Cement with Energy Spectrum Analysis[J]. 西南石油大学学报(自然科学版), 1998, 20(3): 72-74.

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A Study of Corrosion of Oil Well Cement with Energy Spectrum Analysis

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