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Hardening

Hardening news and technical articles from Oil & Gas Journal. Search Hardening latest and archived news and articles

  1. DRILLING CONSORTIUM—2 (Conclusion): Drilling campaign obtains continuous improvement

    Magazine Articles

    Mon, 1 Aug 2011

    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

  2. Storms may no longer boost gas prices

    Magazine Articles

    Mon, 23 Aug 2010

    strength that makes US landfall would ultimately be bearish because of demand destruction outweighing supply impacts. "The ' hardening ' of refineries also limits the products shortage scenarios," Sieminski said. "Of course [the strongest] Category 5

  3. Hurricanes may no longer boost gas prices

    Online Articles

    Mon, 16 Aug 2010

    strength that makes US landfall would ultimately be bearish because of demand destruction outweighing supply impacts. “The ‘ hardening ’ of refineries also limits the products shortage scenarios,” Sieminski said. “Of course [the strongest] Category

  4. Pacific Rubiales seeks downstream integration

    Online Articles

    Tue, 9 Nov 2010

    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

  5. TECHNOLOGY More precise pipe wall calculations developed

    Magazine Articles

    Mon, 29 Apr 1996

    purposes, we will use an elastic, linearly hardening stress-strain diagram, which is simpler ..... thickness. Equation 32 for calculating hardening modulus is based on the assumption that ..... 70% of yield strength and the linear hardening lasts up to the yield strength. The

  6. Permafrost Cement - Conclusion: Ceramicrete blends produce strong, low-permeability cements for arctic use

    Magazine Articles

    Mon, 16 May 2005

    yield a pumping time longer than 5 hr. At the same time, its hardening also took much longer. Click here to enlarge image To reduce ..... time. As MgO content increased, the thickening as well as hardening time became shorter. Thus, adjusting the MgO content allows

  7. Doha's collapse will cut energy use the hard way

    Online Articles

    Fri, 1 Aug 2008

    is finished. The outlook, though, isn't cheery. If anything, protectionism, especially involving farm products, is hardening . China and India, with growing populations beginning to reap the fruits of industrialization, have received blame for holding

  8. New method sets concrete coating’s effect on pipeline stiffness, stress

    Magazine Articles

    Mon, 19 Jun 2006

    describes the second section. The third section of the diagram is linear. The corresponding slope of this line equals the hardening modulus. This part of the diagram extends to ultimate strength from yield strength. • Concrete. Typical stress-strain

  9. Doha’s collapse will cut energy use the hard way

    Magazine Articles

    Mon, 11 Aug 2008

    finished. The outlook, though, isn’t cheery. If anything, protectionism, especially involving farm products, is hardening . China and India, with growing populations beginning to reap the fruits of industrialization, have received blame for holding

  10. SPECIAL REPORT: BP, Baker run first expandable monobore liner extension system

    Magazine Articles

    Mon, 12 Feb 2007

    Controlled plastic deformation leads to an increase in tensile strength and, subsequently, increased hardness due to cold work hardening . The casing is nominally supplied with a hardness of about 90 Hardness Rockwell ‘B’ scale (HRB); 95HRB max per Baker

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