1. n. [Formation Evaluation]

The temperature in the borehole at total depth at the time it is measured. In log interpretation, the bottomhole temperature (BHT) is taken as the maximum recorded temperature during a logging run or preferably the last of series of runs during the same operation.

BHT is the temperature used for the interpretation of logs at total depth. Farther up the hole, the correct temperature is calculated by assuming a certain temperature gradient. The BHT lies between the bottomhole circulating temperature (BHCT) and the bottomhole static temperature (BHST).

Alternate Form: BHT

2. n. [Well Completions]

The downhole temperature measured or calculated at a point of interest. The BHT, without reference to circulating or static conditions, is typically associated with producing conditions.

Alternate Form: BHT