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Three-dimensional Finite Element Analysis of Magnetic Flux Leakage Signals Caused by Transmission Pipeline Complex Corrosion
Finite element analysis Magnetic flux leakage Non destructive testing
2009/7/24
The most commonly used and cost effective method of transmission pipeline non destructive testing (NDT) utilizes the magnetic flux leakage (MFL) technique. The corrosion pits occur in many and comple...
Influence of Corrosion Products on Magnetic Flux Leakage Signals in Inspection of Far-side Metal-loss Defects in Oil Storage Tank Bottom Floors
Non-destructive testing Magnetic leakage field Oil storage tank
2009/7/24
Magnetic flux leakage testing (MFLT) is a reliable inspection method for far-side metal loss type flaws. Corrosion products of ferromagnetic substances are generated in wet environments, so may affe...
Non-destructive Evaluation Method for Far-side Corrosion Type Flaws in Oil Storage Tank Bottom Floors Using the Magnetic Flux Leakage Technique
Non-destructive testing Magnetic leakage field Oil storage tank
2009/7/24
A quantitative procedure based on the magnetic flux leakage technique was proposed to evaluate the size of metal-loss type flaws such as corrosion pits in oil storage tank bottom floors. The approach...
Corrosion control of 13%Cr steel tubing by inhibitor treatment
inhibitor evaluation for 13%Cr steel adsorption behavior film persistency
2009/5/8
In order to extend the service lives of corroded 13%Cr steel tubing strings, batch treatment of corrosion inhibitor was considered. However, there was no inhibitor for chromium containing steels. As ...
An influence of acetic acid on the carbon dioxide corrosion of 13 % Cr tubing in Minami-Nagaoka gas field
Minami-Nagaoka gas field 13 %Cr steel tubing localized corrosion
2009/5/8
Localized corrosion was found on inner surfaces of 13 %Cr steel tubing at shallow depths in deep, hot corrosive Minami-Nagaoka gas wells. Judging from the high penetration rates of corrosion pits, fa...
Drill pipe failure prevention-Corrosion protection with drill pipe surface coating and management of drill pipe use with fatigue database-
zinc coating drill pipe fatigue database Von Mises Stress
2009/5/6
Drill pipe failure is a very serious problem for Teikoku Oil Company(TOC) to continue deep well drilling. Then TOC has continued to carry out research in order to avoid this trouble and started some ...
The effect of water fraction in condensate on corrosion behavior of oil country tubular goods (OCTG) material
CO2 corrosion CO2+H2S corrosion condensate water wet corrosion product
2009/4/13
In order to investigate corrosion behavior of representative Oil Country Tubular Goods (OCTG) materials in environments of gas condensate/water/CO2 or CO2+H2S, laboratory and field corrosion tests we...