Casing temperature derating

05 April 2017 Hi All!
We are drilling exploration wells down to 6200m (20 340 ft) and temperature goes up to 142 C (288 F). Already drilled 2 wells and we are planning to make some changes to the original drilling program, and i would like to introduce temperature derating factor for casing design. I've contacted to the pipe suppliers but not clear firm answer to the question so far. 
From your experience, should we consider temperature derating, if so could you share with some figures?

6 Answer(s)

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