الفهرس 
Effect of drilling fluid temperature on formation fracture pressure gradient
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Abstract
In this thesis, in order to predict the formation fracture gradient in high-temperature formations, a simulation model of the temperature field around the borehole during circulation is established. The effect of temperature change on the formation fracture pressure gradient around the borehole is analyzed and simulated. This effect will be important for HPHT and deep-water wells to reduce the possibility of losses, predict the apparent kick and then save rig time