Casing design for temperature regimes in geothermal wells
R.W. Nicholson
Abstract
R.W. Nicholson
Abstract
A previous article, in the April 1984 issue of the Bulletin, defined three aspects of temperature which affect casing design. These are: (1) maximum temperature anticipated in the wellbore; (2) the geothermal temperature along the wellbore; and (3) the maximum change in temperature along the well bore. These aspects of temperature affect the type of casing material, the installation procedures and the operating conditions within the wellbore. A summary of useful formulas for estimating the various aspects of geothermal casing design and installation is given.
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A previous article, in the April 1984 issue of the Bulletin, defined three aspects of temperature which affect casing design. These are: (1) maximum temperature anticipated in the wellbore; (2) the geothermal temperature along the wellbore; and (3) the maximum change in temperature along the well bore. These aspects of temperature affect the type of casing material, the installation procedures and the operating conditions within the wellbore. A summary of useful formulas for estimating the various aspects of geothermal casing design and installation is given.
Key concepts: Casing, Wellbore, Geothermal gradient, Petroleum engineering, Geothermal energy, Environmental science, Engineering, Geology