Procedures correct temperatures for deep offshore wells

Accurate prediction of bottomhole circulating temperatures (BHCT) and bottomhole static temperatures (BHST) is important during drilling and completion of oil and gas wells.These downhole temperatures affect cement thickening time, rheological properties, compressive strength development, and set time. Click here to enlarge imageAccurate estimation of BHCT and BHST becomes particularly challenging, however, for deep offshore wells that have cold seabed temperatures and unknown formation temperatures.Several techniques, when combined, simplify the task. Examples will demonstrate how to combine the use of American Petroleum Institute (API) temperature correlations, an API equivalent well (...

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