ShareEquation calculates thawing time around wells completed in permafrost.
Author(s) : KUTASOV I. M.
Type of article: Article
Summary
When oil or gas wells are drilled in permafrost, the relatively high temperature of the bore can cause long term thawing of surrounding permafrost creating settlement problems. An insulation layer can be included, but eventually the radius of thawing may increase. An equation has been developed to calculate the thawing time. This includes a dimensionless function connected with the radius of thawing, a table for which is given, along with a worked example. D.W.H.
Details
- Original title: Equation calculates thawing time around wells completed in permafrost.
- Record ID : 1994-3873
- Languages: English
- Source: Oil Gas J. - vol. 91 - n. 49
- Publication date: 1993/12/06
- Document available for consultation in the library of the IIR headquarters only.
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Indexing
- Themes: Civil engineering
- Keywords: Thawing; Permafrost; Calculation; Heat transfer; Borehole; Petroleum; Natural gas; Insulation
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