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Houston, Texas 77027
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Copyright © 2010: PennWell Corporation
All Rights Reserved.
Houston, Texas 77027
(713) 621-9720
Copyright © 2010: PennWell Corporation
All Rights Reserved.
Hardening
Hardening news and technical articles from Oil & Gas Journal. Search Hardening latest and archived news and articles
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Appropriate practices avoid tube fitting failures
… to the back ferrule (Fig. 3). The nitride hardening of the ferrule led to the failure, although ..... the fitting manufacturer, considered nitride hardening as the best ferrule hardening technology at the time of the fitting's manufacturing …
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Russian field tests yield cements for arctic wells
… kinetic deviations during the hydration of hardening cement in contrast to hydration at normal ..... mechanism was the basis to design materials hardening at temperatures below freezing, including ..... crystallization is a limiting stage of the hardening process. Correspondingly, by adding …
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Tests prove indentation technique for assessment of in-service line pipe
… deformation process is similar to the work- hardening behavior of the uniaxial tensile test ..... determined by a constant (c) and the work- hardening exponent (n) for steels in Equation ..... of steels. The exact values of work- hardening exponent, equivalent stress, and strain …
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Changes proposed for determining line pipe wall thickness
… to pressures uses an elastic, linear hardening stress-strain diagram (showing the ..... proposed equation for calculating the hardening modulus is based upon the assumption ..... of the yield strength, and linear hardening lasts up to the yield stress (Equation …
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Russians study annulus cement in Arctic wells
… Form a tight cement sheath. Hydration, hardening The processes of Portland cement hydration ..... use thermal methods to intensify cement hardening (heating the mixing liquid; squeezing ..... destruction. This is achieved by: Cement hardening under absolute values of negative temperature …
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UFRJ, Petrobras study strength behavior of expandable tubulars
… took into account material kinematic hardening , contact between tubulars and the conical ..... material behavior. We followed a kinematic hardening plasticity model in addition to the isotropic ..... induced anisotropy caused by strain- hardening (Bauschinger effect). Interestingly …
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DRILLING CONSORTIUM—2 (Conclusion): Drilling campaign obtains continuous improvement
… experiences and best practices in similar incidents. The project meetings for the following wells decided to continue using rapid hardening industry cement systems for the 30-in. casing. 2 The next sections frequently included foam cement for improving well …
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OGJ Newsletter
… crippling local refinery operations. While the transportation strikes and others seem to be easing, industrial action is hardening at refineries throughout the country as well as at port terminals. Compagnie Industrielle et Maritime (CIM) at Le Havre …
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Pacific Rubiales Energy seeks downstream market integration
… search for growth while diversifying the company's resource base. Competition for deep conversion refining capacity is hardening regionally. Pacific Rubiales does not plan to buy refinery assets but will move into mitigating the volatility in netbacks …
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Strikes continue to cripple French refinery operations
… crippling local refinery operations. While the transportation strikes and others seem to be easing, industrial action is hardening at refineries throughout the country as well as at port terminals. Compagnie Industrielle et Maritime (CIM) at Le Havre …
